metropolis® adm (compact shelf) release 3

Metropolis® ADM (Compact shelf)Release 3.3

Installation Guide

365-312-735CC109494369

Issue 1October 2003

Lucent Technologies - ProprietaryThis document contains proprietary information

of Lucent Technologies and is not to be disclosed or usedexcept in accordance with applicable agreements

Copyright © 2003 Lucent TechnologiesUnpublished and Not for Publication

All Rights Reserved

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This material is protected by the copyright and trade secret laws of the United States and other countries. It may not be reproduced, distributed,or altered in any fashion by any entity (either internal or external to Lucent Technologies), except in accordance with applicable agreements,contracts or licensing, without the express written consent of Lucent Technologies and the business management owner of the material.

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Notice

Every effort has been made to ensure that the information in this document was complete and accurate at the time of printing. However,information is subject to change.

Mandatory customer information

Safety

Always observe the Safety Instructions given in Chapter 1 when operating the system.

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Contents

BOOKMARK1::About this information productAbout this information product

BOOKMARK2::PurposePurpose vii

BOOKMARK3::Reason for reissueReason for reissue vii

BOOKMARK4::Safety labelsSafety labels vii

BOOKMARK5::Intended audienceIntended audience vii

BOOKMARK6::How to use this information productHow to use this information product viii

BOOKMARK7::Conventions usedConventions used viii

BOOKMARK8::Approval markApproval mark ix

BOOKMARK9::Related documentsRelated documents ix

BOOKMARK10::Technical supportTechnical support x

BOOKMARK11::How to commentHow to comment xi

BOOKMARK12::How to orderHow to order xi

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1 BOOKMARK13::1 SafetySafety

BOOKMARK14::OverviewOverview 1-1

BOOKMARK15::Safety guidelines and precautionsSafety guidelines and precautions


BOOKMARK17::Rack mountingRack mounting 1-3

BOOKMARK18::EMC/ESD safety guidelinesEMC/ESD safety guidelines 1-4

BOOKMARK19::Power supply safety instructionsPower supply safety instructions 1-5

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BOOKMARK20::Laser safety guidelinesLaser safety guidelines 1-6

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2 BOOKMARK21::2 System overviewSystem overview


BOOKMARK23::Section: Introduction to the Metropolis® ADM (Compact shelf)Section: Introduction to the Metropolis® ADM (Compact shelf)


BOOKMARK25::System architectureSystem architecture 2-3

BOOKMARK26::Section: Features and benefitsSection: Features and benefits


BOOKMARK28::FeaturesFeatures 2-6

BOOKMARK29::Section: ApplicationsSection: Applications


BOOKMARK31::STM-16 Point-to-point topologiesSTM-16 Point-to-point topologies 2-9

BOOKMARK32::Broadcasting applicationBroadcasting application 2-10

BOOKMARK33::Ring access node with STM-1 optical interfaceRing access node with STM-1 optical interface 2-11

BOOKMARK34::Ethernet packets over SDHEthernet packets over SDH 2-12

BOOKMARK35::Dual homing of an STM-1 access ringDual homing of an STM-1 access ring 2-14

BOOKMARK36::Payload concatenationPayload concatenation 2-15

BOOKMARK37::Dual node interworking (DNI)Dual node interworking (DNI) 2-16

BOOKMARK38::SDH to SONET conversionSDH to SONET conversion 2-20

BOOKMARK39::Leased lines / bandwith on demandLeased lines / bandwith on demand 2-21

BOOKMARK40::Section: Unit and subrack descriptionsSection: Unit and subrack descriptions


BOOKMARK42::Line/cross-connect/timing- and power unitLine/cross-connect/timing- and power unit 2-23

BOOKMARK43::Tributary unitsTributary units 2-25

BOOKMARK44::Paddle boards (PB)Paddle boards (PB) 2-26

BOOKMARK45::System controller (SC)System controller (SC) 2-27

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BOOKMARK46::Layout of the 5TAD subrackLayout of the 5TAD subrack 2-29

BOOKMARK47::User panelUser panel 2-30

BOOKMARK48::Input/output areaInput/output area 2-32

BOOKMARK49::Section: The management product familySection: The management product family


BOOKMARK51::TMN framework implementationTMN framework implementation 2-34

BOOKMARK52::Section: Technical data of the Metropolis® ADM (Compact shelf)Section: Technical data of the Metropolis® ADM (Compact shelf)


BOOKMARK54::Technical dataTechnical data 2-37

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3 BOOKMARK55::3 Installing the Metropolis® ADM (Compact shelf)Installing the Metropolis® ADM (Compact shelf)


BOOKMARK57::Section: Checking the physical installationSection: Checking the physical installation


BOOKMARK59::Checking the subrack installationChecking the subrack installation 3-3

BOOKMARK60::Checking the Q-LAN connectionsChecking the Q-LAN connections 3-4

BOOKMARK61::Connections to the line/cross-connect/timing and power unitsConnections to the line/cross-connect/timing and power units 3-6

BOOKMARK62::Connections to the synchronization supply unitConnections to the synchronization supply unit 3-8

BOOKMARK63::Miscellaneous inputs and outputsMiscellaneous inputs and outputs 3-9

BOOKMARK64::Section: Equipping the NESection: Equipping the NE


BOOKMARK66::Core units and system controllerCore units and system controller 3-12

BOOKMARK67::Tributary unitsTributary units 3-13

BOOKMARK68::Paddle boardsPaddle boards 3-15

BOOKMARK69::Equipping the subrackEquipping the subrack 3-17

BOOKMARK70::Rules for inserting and connecting tributary unitsRules for inserting and connecting tributary units 3-19

BOOKMARK71::Units installation procedureUnits installation procedure 3-22

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BOOKMARK72::Section: Guidelines for NE provisioningSection: Guidelines for NE provisioning


BOOKMARK74::Connecting the ITM-CITConnecting the ITM-CIT 3-24

BOOKMARK75::Provisioning with the ITM-CITProvisioning with the ITM-CIT 3-26

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4 BOOKMARK76::4 Testing the Metropolis® ADM (Compact shelf)Testing the Metropolis® ADM (Compact shelf)


BOOKMARK78::Section: Measuring the optical output powerSection: Measuring the optical output power


BOOKMARK80::Test configuration for measuring the optical output powerTest configuration for measuring the optical output power 4-3

BOOKMARK81::Values of the optical output powerValues of the optical output power 4-4

BOOKMARK82::Measure the optical output powerMeasure the optical output power 4-5

BOOKMARK83::Section: Checking the high speed parts of the line- or tributary unitSection: Checking the high speed parts of the line- or tributaryunit


BOOKMARK85::Test configuration for looping the line- or tributary unitTest configuration for looping the line- or tributary unit 4-7

BOOKMARK86::Checking the line- or tributary unitChecking the line- or tributary unit 4-8

BOOKMARK87::Section: Transmission test on the tributary unitSection: Transmission test on the tributary unit


BOOKMARK89::Transmission test configurationTransmission test configuration 4-10

BOOKMARK90::Transmission testTransmission test 4-12.....................................................................................................................................................................................................................................

GL BOOKMARK91::GlossaryGlossary GL-1.....................................................................................................................................................................................................................................

IN BOOKMARK92::IndexIndex IN-1

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About this information product

...............................................................................................................................................................................................................................................................

Purpose The purpose of the Installation Guide (IG) is to provide theinstallation personnel with all information necessary to install andstartup the network element’s (NE) hardware.

The Installation Guide is a network oriented manual and will beshipped to all sites where the network element will be installed.

Reason for reissue First issue.

Safety labels The safety guidelines are stated in Chapter 1.

Intended audience The Installation Guide is intended for personnel who take care ofdeploying the network elements. This guide is also useful for thoseinvolved in testing, system projecting and planning tasks or networkengineering and administrative tasks.

Installation personnel may have to perform one or more of thefollowing tasks:

• Connecting the rack

• Mounting the network element

• Connecting the power distribution panel

• Checking the Q-LAN connections

• Connecting the station clock

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• Equipping the network element

• Connecting the network element

• Connecting the ITM-CIT

• Provisioning with the ITM-CIT. Also see the USEROPERATIONS GUIDE

• Measuring the optical output power

• Checking the high speed parts of the network element

• Error measurement on the tributary interface of the networkelement.

How to use thisinformation product

The Installation Guide (IG) is divided into a number of chapters.Through this the reader can quickly select the subject of his/herinterest and need.

This guide is divided into the following chapters:

• About this information product. A brief description over how touse this guide.

• Safety. In this chapter safety guidelines and precautions, whenhandling transmission equipment are listed.

• System Overview. This chapter briefly describes the networkelement.

• Subrack and unit descriptions. This chapter describes the networkelement in terms of basic physical configuration and of circuitpacks.

• Installing the network element. The chapter describes thehardware installing of the network element.

• Testing the network element. This chapter describes the testing ofthe network element locally by checking the transmissionfunctionality. This testing is done with the use of external testequipment

• Glossary. In this chapter all the special terms and all theabbreviations and acronyms, used in this manual, are listed.

Conventions used This guide uses the following notations:

DANGERSuggests the possibility of a personal injury


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CAUTIONSuggests the possibility of service interruption

WARNINGSuggests the possibility of equipment damage or softwarecorruption

Important! Gives supplementary information

Approval mark The following CE approval mark applies to this product.

CE Marking is the indicator for products conform with relevantEuropean Community (EC) Directives. CE stands for ConformitéEuropéenne. The CE marked transmission equipment is compliantwith EC Directive: 89/336/EEC - Electro Magnetic Compatibility(EMC) and with EC Directive 73/23/EEC - Electrical equipmentdesigned for use within certain voltage limits. The equipment is alsofully complying with Council Directive 93/68/EEC of 22 July 1993.In this manual you will find several chapters in relation with the CEmarking, for example the use of EMC closed connector hoods, filteredconnectors, and warnings to use a wrist strap when handlingequipment.

Related documents The following documents are network element related:

• For more detailed information on the NE, technicalcharacteristics, features, cross-product interworking and systemplanning and engineering, refer to the: APPLICATION ANDPLANNING GUIDE

• For information on assembling and cabling of the NE, refer tothe: ASSEMBLY MANUAL


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• For information on provisioning and maintenance of the NE withthe use of the Craft Interface Terminal (CIT), refer to the: USEROPERATIONS GUIDE

• For information on corrective procedures and action tables of theNE refer to the: ALARM MESSAGES AND TROUBLECLEARING GUIDE

The following documents are Subnetwork Controller related:

• For information on installation of the Integrated TransportManagement-Subnetwork Controller (ITM-SC), refer to the:INSTALLATION GUIDE

• For information on how to give users access to the IntegratedTransport Management-Subnetwork Controller (ITM-SC) and tobackup and restore databases, refer to the: ADMINISTRATIONGUIDE

• For information on maintenance of the Network Elements withthe use of the Integrated Transport Management-SubnetworkController (ITM-SC), refer to the: MAINTENANCE GUIDE

• For information on provisioning of the network elements with theuse of the Integrated Transport Management-SubnetworkController (ITM-SC) refer to the: ITM-SC PROVISIONINGGUIDE FOR THE NETWORK ELEMENT

Technical support Lucent Technologies provides the following Technical SupportServices:

• Remote Technical Support (RTS) – remote technical support totroubleshoot and resolve system problems.

• On-site Technical Support (OTS) – on-site assistance withoperational issues and remedial maintenance.

• Repair and Replacement (R&R) – technical support services fordevice repair/return or parts replacement.

• Lucent Online Customer Support – online access to informationand services that can help resolve technical support requests.

NOTE: Technical Support Services are available 24 hours a day, 7days a week.

Installation Guide About this information product

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When additional technical assistance is needed, use the appropriatecontact information in the table below.

Customer location Initial Lucent Technologies contactlocation

Inside the UnitedStates and Canada

Technical Support Services can be reached at

1-866-LUCENT8 (866-582-3688): Prompt#1.

Outside the UnitedStates

Technical Support Services can be reached at

+1-630-224-4672: Prompt#2.

Web-Site For additional information regardingWorldwide Services, refer to the LucentTechnologies’ web-site at

http://www.lucent.com/products

– Click on Browse Catalog

– Click on Worldwide Services Products

– Select the desired service

How to comment To comment on this information product, go to the Online CommentForm (http://www.lucent-info.com/comments/enus/) or email yourcomments to the Comments Hotline ([email protected]).

Because customer satisfaction is extremely important to LucentTechnologies, every attempt is made to encourage feedback fromcustomers about our information products. Thank you for yourfeedback.

You can also send or fax comments about this document to:

Lucent Technologies Network Systems GmbH

Lucent Learning WO

Thurn-und-Taxis-Str. 10

90411 Nuernberg, Germany

Fax: +49 911 526 3545

How to order For all questions concerning ordering of Metropolis® ADM (Compactshelf) documentation, for a complete list of the marketable items andtheir comcodes, and for ordering the equipment please contact yourAccount Executive or your Lucent Technologies local customer team.

Installation Guide About this information product

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1 Safety

Overview....................................................................................................................................................................................................................................

Purpose This chapter comprises rules on mounting safety admonishmentsconcerning EMC/ESD, Power supply and laser safety.

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Safety guidelines and precautions

Overview....................................................................................................................................................................................................................................

Purpose The purpose of this chapter is to provide knowledge about the safetyguidelines and precautions, when handling transmission equipment.

Safety

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Rack mounting....................................................................................................................................................................................................................................

Rules for mounting This equipment is for installation in “restricted access locations” only.

The rack frames containing this equipment are suitable for mountingon concrete or other non-combustible surfaces only.

Safety guidelines and precautions Safety

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EMC/ESD safety guidelines....................................................................................................................................................................................................................................

Overview The EMC/ESD boundary has been defined at Rack/Subrack level. Theprinciple is based on the “Faraday Cage” theory. If there are doors orcovers, then the doors must be closed and the covers must bemounted.

With every rack/subrack an ESD (electrostatic discharge) earth socketand an ESD sticker are supplied. On the Rack frame ETSI an ESDbonding point for an ESD wrist strap is present. It is mounted in away that it’s always accessible for installation, normal operation andmaintenance activity.

Wrist strap The wrist strap must be worn when opening the Subrack doors.

Electrostatic sensitivedevices

The equipment described in this guide contains static sensitivedevices.

Electrostatic Discharge Precautions should be taken when operating orworking on this equipment. The label read as follows:

Special handling precautions apply whenever installing or removingparts of the equipment include:

• Leaving components or equipment in original packaging untilrequired for use.

• Removing plug-in units with previously discharged hands (e.g.using grounded wrist straps connected to the ESD Bonding Pointon the Cabinet).

• Returning items for repair in suitable antistatic packaging.


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Power supply safety instructions....................................................................................................................................................................................................................................

Overview The installation must be compliant with IEC 60950–Ed3, 1999-04.

Electrical Safety The equipment must be be grounded (connected to protective earth)(Class I equipment).

The equipment is connected to the Power Supply via a non-industrialplug (Type A Pluggable equipment). It uses an easily detachablepower supply cord.

DC Power Supply

Each equipment must be fitted when the equipment is installed, withan external, marked and easily-identifiable protection device of 3 Amaximum.

The equipment must be supplied with a Safety Extra-Low Voltage(SELV) of -48 V and the positive terminal of this source correctlyconnected to the protective earth.

The equipment can also be connected to a TelecommunicationNetwork Voltage (TNV) of -48 V to -60 V. No specific requirementsare necessary for this type of source.

The user interfaces are of the SELV type and must only be connectedto circuits with the same type of interface.

AC Power Supply

An external AC power distribution system classified IT cannot beused. (For IT classification, see: IEC 60950–Ed3, 1999-04, Annex V:Power system isolated from earth or one point connected to earththrough an impedance and direct electrical connection of theequipment to earth).

An external protection device is not necessary: the buildinginstallation is considered as providing short-circuit backup protection(IEC 60950–Ed3, 1999-04, paragraph 2.7.3).

The user interfaces are of the SELV type and must only be connectedto circuits with the same type of interface.

Protection against short-circuits

Important! Always disconnect the Power supply of theequipment before carrying out any work on active or passivecomponents.


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Laser safety guidelines....................................................................................................................................................................................................................................

Overview Optical fiber telecommunication systems, their associated test sets, andsimilar operating systems use semiconductor laser transmitters thatemit infrared (IR) light at wavelengths between approximately 800nanometers and 1600 nanometers. The emitted light is above the redend of the visible spectrum, which is normally not visible to thehuman eye. Although radiant energy at near-IR wavelengths isofficially designated invisible, some people can see the shorterwavelength energy even at power levels several orders of magnitudebelow any that have been shown to cause injury to the eye.

Conventional lasers can produce an intense beam of monochromaticlight. The term monochromaticity means a single wavelength outputof pure color that may be visible or invisible to the eye. Aconventional laser produces a small-size beam of light, and becausethe beam size is small the power density (also called irradiance) isvery high. Consequently, lasers and laser products are subject tofederal and applicable state regulations as well as internationalstandards for their safe operation.

A conventional laser beam expands very little over distance, or is saidto be very well collimated. Thus, conventional laser irradianceremains relatively constant over distance. However, lasers used inlightwave systems have a large beam divergence, typically 10 to 20degrees. Here, irradiance obeys the inverse square law (doubling thedistance reduces the irradiance by a factor of 4)and rapidly decreasesover distance.

Lasers and eye damage The optical energy emitted by laser and high-radiance LEDs in the400-1400 nm range may cause eye damage if absorbed by the retina.When a beam of light enters the eye, the eye magnifies and focusesthe energy on the retina magnifying the irradiance. The irradiance ofthe energy that reaches the retina is approximately 105 or 100,000times more than at the cornea and, if sufficiently intense, may cause aretinal burn.

The damage mechanism at the wavelengths used in an optical fibertelecommunications is thermal in origin i.e., damage caused byheating. Therefore, a specific amount of energy is required for adefinite time to heat an area of retinal tissue. Damage to the retinaoccurs only when one looks at the light sufficiently long that theproduct of the retinal irradiance and the viewing time exceeds thedamage threshold. Optical energies above 1400 nm cause corneal andskin burns but do not affect the retina. The thresholds for injury atwavelengths greater than 1400 nm are significantly higher than forwavelengths in the retinal hazard region.


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Classification of lasers Manufacturers of lasers and laser products in the U.S. are regulated bythe Food and Drug Administration’s Center for Devices andRadiological Health (FDA/CDRH) under 21 CFR 1040. Theseregulations require manufacturers to certify each laser or laser productas belonging to one of four major Classes I, II, lla, IlIa, lllb, or IV.The International Electro-technical Commission is an internationalstandards body that writes laser safety standards under IEC-60825.Classification schemes are similar with Classes divided into Classes 1,1M, 2, 2M, 3B, 3R and 4. Lasers are classified according to theaccessible emission limits and their potential for causing injury.Optical fiber telecommunication systems are generally classified asClass I/1, because, under normal operating conditions, all energizedlaser transmitting circuit packs are terminated on optical fibers whichenclose the laser energy with the fiber sheath forming a protectivehousing. Also, a protective housing / access panel is typically installedin front of the laser circuit pack shelves. The circuit packs themselves,however, may be FDA/CDRH Class I or IIIb or IEC Class 1, 1M, 3B,3R or 4. State of the art Raman and EDFA optical amplifiers havenow extended into the Class IV/4 designations.

Lightwave safetyprecautions for optical

fiber telecommununicationsystems

In its normal operating mode, an optical fiber telecommunicationsystem is totally enclosed and presents no risk of eye injury. It is aClass I/1 system under the FDA and IEC classifications.

The fiber optic cables that interconnect various components of anoptical fiber telecommunication system can disconnect or break, andmay expose people to laser emissions. Also, certain measures andmaintenance procedures may expose the technician to emission fromthe semiconductor laser during installation and servicing. Unlike morefamiliar laser devices, such as solid-state and gas lasers, the emissionpattern of a semiconductor laser results in a highly divergent beam. Ina divergent beam, the irradiance (power density) decreases rapidlywith distance. The greater the distance, the less energy will enter theeye, and the less potential risk for eye injury. Inadvertently viewing anunterminated fiber or damaged fiber with the unaided eye at distancesgreater than 5 to 6 inches normally will not cause eye injury providedthe power in the fiber is less than a few milliwatts at the near IRwavelengths and a few tens of milliwatts at the far IR wavelengths.However, damage may occur if an optical instrument such as amicroscope, magnifying glass or eye loupe is used to stare at theenergized fiber end.

Important! Use of controls, adjustments and procedures otherthan those specified herein may result in hazardous laserradiation exposure.

Safety guidelines and precautionsLaser safety guidelines

Safety

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Laser safety precautionsfor enclosed systems

Under normal operating conditions, optical fiber telecommunicationsystems are completely enclosed; nonetheless, the followingprecautions shall be observed:

1. Because of the potential for eye damage, technicians should notstare into optical connectors or broken fibers.

2. Under no circumstance shall laser/fiber optic operations beperformed by a technician before satisfactorily completingtraining in laser safety.

3. Since viewing laser emissions directly in excess of Class I/1limits with an optical instrument such as an eye loupe greatlyincreases the risk of eye damage.

Laser safety precautionsfor unenclosed systems

During service, maintenance, or restoration, an optical fibertelecommunication system is considered unenclosed. Under theseconditions, follow these practices:

1. Only authorized, trained personnel shall be permitted to doservice, maintenance and restoration. Avoid exposing the eye toemissions from unterminated, energized optical connectors atclose distances. Laser modules associated with the optical portsof laser circuit packs are typically recessed, which limits theexposure distance. Optical port shutters, Automatic PowerReduction (APR), and Automatic Power Shut Down (APSD) areengineering controls that are also used to limit the emissions.However, technicians removing or replacing laser circuit packsshould not stare or look directly into the optical port with opticalinstruments or magnifying lenses. (Normal eyewear or indirectviewing instruments such as Find-R-Scopes are not consideredmagnifying lenses or optical instruments).

2. Only authorized, trained personnel shall use optical testequipment during installation or servicing since this equipmentcontains semiconductor lasers. (Some examples of optical testequipment are Optical Time Domain Reflectometers ( OTDR’s),Hand-Held Loss Test Sets).

3. Under no circumstances shall any personnel scan a fiber with anoptical test set without verifying that all laser sources on the fiberare turned off.

4. All unauthorized personnel shall be excluded from the immediatearea of the optical fiber telecommunication systems duringinstallation and service.

Consult ANSI Z136.2 American National Standard for Safe Use ofLasers in the U.S. or outside the U.S., IEC-60825, Part 2 for guidanceon the safe use of optical fiber optic communication systems in theworkplace.


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Optical specifications ofthe internal laser circuit

packs:

Laser circuitpack code

Wavelength(nm)

Outputpower (mW)

Fiber typecore/claddingdiameter (µm)

Connectortype

FDAclass/IEChazard level

S1.1 1310 0.16 SM(9/125) SC, FC, ST I/1

S4.1 1310 0.16 SM(9/125) SC, FC, ST I/1

L1.2 1550 1.6 SM(9/125) SC, FC, ST I/1

L4.2 1550 1.6 SM(9/125) SC, FC, ST I/1

Lucent Technologies Metropolis® AM/AMS complies withFDA/CDRH 21 CFR 1040.10 and 1040.11 as Class I and IEC60825-1 as a Class 1 Laser Product.


Safety

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2 System overview

Overview....................................................................................................................................................................................................................................

Purpose This chapter introduces the network element (NE) Metropolis® ADM(Compact shelf). For more information about applications of theMetropolis® ADM (Compact shelf) see the Application and PlanningGuide. Network element Metropolis® ADM (Compact shelf) wasformerly known as the WaveStar® ADM 16/1 compact.

Topics The main topics covered in this chapter are:

• A short overview of the network element in general.

• The features and benefits of the network element

• An overview is given of possible applications of the networkelement

• The system layout containing an overview of the slots andtributary units.

• For each unit that can be used in the network element, afunctional description is given.

• An overview of the network element management.

• An overview of the technical data of the network element.

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Section: Introduction to the Metropolis® ADM (Compact shelf)

Overview....................................................................................................................................................................................................................................

Purpose The Metropolis® ADM (Compact shelf) is a high capacity intelligentmultiplexer and transport system able to multiplex Ethernet, PDH andSDH bit rates to a higher level of 622 Mbit/s (STM-4) or 2.5 Gbit/s(STM-16). Because of this wide range in capacity, this system is auseful element in building efficient and flexible networks.

System overview

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System architecture....................................................................................................................................................................................................................................

Introduction This chapter provides a more detailed view of the system compositionand the shelf complements of the Metropolis® ADM (Compact shelf)transport system. The system functions and circuit packs are describedfollowing the description of the system architecture. Additionalinformation is provided relating to protection and timing architecture.

Functional architecture This very flexible product resulted from a great step forward intechnology. Owing to the high level of integration at circuit-packlevel, within one subrack it is possible to Add/Drop up to:

• 32 x 10 Mbit/s Base-T Eternet LAN user interfaces

• 8 x 100 Mbit/s Base-T Eternet LAN user interfaces

• 252 x 2 Mbit/s

• 48 x 34/45 Mbit/s (switchable unit)

• 16 x STM-1 electrical

• 20 x STM-1 optical

• 7 x STM-4 optical (5x tributary, 2x line)

• 2 x STM-16

The Metropolis® ADM (Compact shelf) is a multiplexer and transportsystem that multiplexes a broad range of plesiochronous andsynchronous signals into an 622 Mbit/s (STM-4) or into an 2.5 Gbit/s(STM-16) signal. The method used to map the interface signalscomplies with the ITU-T specified AU-4 mapping procedure. Aspecial tributary unit converts Ethernet signals into SDH VirtualContainers. This unit converts the user signals on the LAN interfacevia a WAN with a capacity of 2, 4, 8, 10, 50, 100 Mbit/s into SDHsignals. The system can be used as an add/drop multiplexer, a terminalmultiplexer or small IP-switch. It provides built-in cross-connectfacilities and flexible interface circuit packs. Local and remotemanagement and control facilities are provided via the Q and Finterface and the embedded Data Communication Channels (DCC).The cross-connect circuit pack is the core of the Metropolis® ADM(Compact shelf) system. An outline of the basic system, with anSTM-16 line, is given in the next figure.

Section: Introduction to the Metropolis®ADM (Compact shelf)

System overview

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Schematic viewFigure 2-1 Basic Metropolis® ADM (Compact shelf) architecture

AT &T

systemcontroller

power &timing

cross-connect64/32

STM-16

power &timing

cross-connect64/32

STM-16

2 Mbit/s

10/100 Mbit/sBASE-T

STM-1/o

STM-1/e

34/45 Mbit/s

STM-4/o

1 + 1 EQUIPMENT

PROTECTION

STM-16/O

STM-16/O

MANAGEMENT

SYSTEM

ITM

GbE

Section: Introduction to the Metropolis®ADM (Compact shelf)System architecture

System overview

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365-312-735Issue 1, October 2003

Section: Features and benefits

Overview....................................................................................................................................................................................................................................

Purpose This section provides information on the Metropolis® ADM (Compactshelf) features and benefits.

System overview

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Features....................................................................................................................................................................................................................................

Key features

• Metropolis® ADM (Compact shelf) interfaces:

- E1 (2 Mbit/s)

- E3 (34 Mbit/s)

- DS1 (1.55 Mbit/s)

- DS3 (45 Mbit/s)

- STM-1 electrical

- STM-1 optical

- STM-4 optical

- 10/100 BASE-T.

- GbE (Gigabit Ethernet).

• The TransLAN™ unit supports:

- L2 switch functions with VPN and QoS support

- IEEE 802.1w rapid spanning tree

- GFP on E/FE

- capability to transport Ethernet-like frames of up to 1650bytes length.

• SDH to SONET and vice versa conversion. Metropolis® ADM(Compact shelf) provides for AU 3 to TU 3 conversion forinterworking with AU 3 (SONET) structured signals.

• Metropolis® ADM (Compact shelf) provides VC-4-4c for ATMsupport.

• Multiple protection schemes are supported like:

- Dual Node Interworking (DNI)

- Selective MS-SPRing

- Multiplex Section Protection (MSP) 1 + 1

- High order and low order SNC/N

- The spanning tree protocol.

• Metropolis® ADM (Compact shelf) network physical designfeatures are:

- -48 or -60 volt power supply

- Front access for all optical and electrical interfaces andtherefore easy installation, even when mounted to a wall

- Low power consumption

- High density units for example 63 E1 interfaces on one unit

Section: Features and benefits System overview

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365-312-735Issue 1, October 2003

- ETSI subrack based design fitting into WaveStar racks (ETS300 119-2), ETSI racks (ETS 300 119-3) and 19″ (IEC60297) racks

- EMC according to ETSI standards

- CE Marking (EMC and safety)

- Lifetime of 15 years in ETSI Class 3.1 environment.

• Metropolis® ADM (Compact shelf) can interwork with thefollowing other network elements and management systems:

- Metropolis® AM/AMS FE/GE trunking

- WaveStar® ADM 16/1 FE/GE trunking, GE

- Metropolis® ADM (Compact shelf) FE/GE trunking, GE

- TDM 10 G GE

- LambdaUnite® MSS GE

- Spring Tide 5000/7000 series

- Cisco CPE and edge routers

- Foundry Big/Netlron

- WaveStar® element management systems ITM-SC andITM-CIT

- Navis™ network management systems

- Navis™ capacity analyzers

- Navis™ performance analyzers.

Section: Features and benefitsFeatures

System overview

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Section: Applications

Overview....................................................................................................................................................................................................................................

Purpose The Metropolis® ADM (Compact shelf) is a highly flexible productcapable of supporting a variety of network applications.

The Metropolis® ADM (Compact shelf) can be applied in two tiers ofa network, that is: access and regional. Mainly the access network isthe place of the Metropolis® ADM (Compact shelf). The systemallows for growth and changing service needs by supporting in-serviceconversions and upgrades. Inherent to its basic design, the systemoperates equally well within fully synchronous as a-synchronousenvironments and provides a flexible link between the two. Thissection provides information on a few network applications of the theMetropolis® ADM (Compact shelf). More applications are presentedin the “Application and Planning Guide”.

Some applications will be shown:

• Two-fiber STM-16 add/drop terminal in rings

• STM-16 access node

• STM-16 mux with mixed 2 Mbit/s and Ethernet access service

• VC-4-4c concatenuation for ATM (IP) interworking

• Single ADM for interconnection of STM-16, STM-4 and STM-1rings

• Dual Node Interworking (DNI)

• SDH to SONET conversion.

Frame format The SDH frame format makes it possible to identify and track thecomponent bytes that form individual AUs or TUs in the aggregatesignal. Identifying these bytes makes it easy to identify and extractindividual VCs from time slots in one frame and insert them into timeslots in another frame by time switching techniques between STM linestreams.

The facility to identify and extract or insert individual VCs in aSynchronous Transport Module lends itself to the implementation ofSDH Add/Drop multiplexers. Combining Add/Drop multiplexers withdigital cross connect systems, flexible network structures can be builtthat allow increased network availability and responsiveness tounexpected demand for existing or new services.

System overview

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STM-16 Point-to-point topologies....................................................................................................................................................................................................................................

Point-to-point The Metropolis® ADM (Compact shelf) can be configured to provideSTM-16 point-to-point applications. The next figure shows theterminal application of the network element. This application is servedby two end terminals. The regenerator (PHASE LR-16) increases thedistance between the terminals.

ExampleFigure 2-2 End terminals 0x1 STM-16

ADM 16/1

Compact

ADM 16/1

Compact

STM-16REG.

Section: Applications System overview

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Broadcasting application....................................................................................................................................................................................................................................

Uni-directional broadcast The Metropolis® ADM (Compact shelf) may broadcast VC-12, VC-3and VC-4 containers. A particular incoming VC is re-transmitted inmultiple (n=2 or more) directions. The return channels remain unused.

ExampleFigure 2-3 Metropolis® ADM (Compact shelf), Uni-directional

broadcast

ADM 16/1

Compact

ADM 16/1Compact

ADM 16/1Compact


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365-312-735Issue 1, October 2003

Ring access node with STM-1 optical interface....................................................................................................................................................................................................................................

Ring access node The Metropolis® ADM (Compact shelf) acts as a hub node forAM/AMS rings. It also supports point-to-point connections toMetropolis® AM/AMS with STM-1 optical tributaries (1+1 MSPprotected or unprotected), point-to-point STM-1 optical connectionswith WaveStar® TM-1 equipment. The Metropolis® ADM (Compactshelf) itself is hosted by a WaveStar® ADM16/1 in either a ring with(selective) MS Spring protection or with VC-4 SNC/N protection.

ExampleFigure 2-4 Ring Access

TM-1

TM-1

STM-16 Ringwith MS-Spring

or SNCP

STM-1o 1+1 MSP

AM-1

AM-1AM-1

AM-1

STM-1o Ringwith SNCP

STM-1o

ADM 16/1Compact

ADM 16/1Compact

ADM 16/1Compact

ADM 16/1 DACS


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Ethernet packets over SDH....................................................................................................................................................................................................................................

TransLAN™ The TransLAN™ option cards are available for the Metropolis® ADM(Compact shelf) as well as for the Metropolis® AM/AMS. TheMetropolis® AM/AMS is an extremely compact and cost-effectiveSTM-1 multiplexer which is especially designed for low-to mediumfill STM-1 links from customer premises to access networks andprovides up to thirty-two 2 Mbit/s ports. Together with theMetropolis® ADM compact, a total solution can be configured forsmall, medium and large business environments. The figure belowgives an example on how to implement TransLAN™. Using an ADM(Compact shelf) with the TransLAN™ at the head office (ISP) andAM1 Plus at the branch offices to create a direct access for dataservices. It eliminates the need for DS/CSUs or interface convertersbetween end-users data equipment and SDH network, thus providingsignificant cost savings on equipment and operation costs.

The key features for Ethernet via SDH are:

• Per unit eight times 10 Base-T LAN ports

• Per unit eight times 100 Base-T LAN ports

• Scalable bandwidth per WAN port, ranging from 2 to 10 Mbit/sin steps of 2 Mbit/s, which can be provisioned by the ITM-SC orITM-CIT transmission management system

• Build-in transparent Ethernet bridge, which adjusts automaticallyto the provisioned bandwidth.

TransLAN™ provides at minimal equipment investment very attractiveservices to the end customers, like:

• Scalable bandwidth without having to change interfaces

• A transparent LAN service that hides the complexity of the WANfor end users (a WAN that looks like a LAN)

• This TransLAN™ converts the user signals on the LAN interfacevia a WAN with a capacity of 2, 4, 6, 8, 10, 50, and 100 Mbit/sinto SDH signals.

• High availability LAN service because of end to end SDHprotection switching.

• The capacity for each LAN port ranges from 150 kbit/s to 100Mbit/s , in Virtual Private Network mode adjustable in steps of 1kbyte.


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ExampleFigure 2-5 Ethernet via SDH

Section: ApplicationsEthernet packets over SDH

System overview

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Dual homing of an STM-1 access ring....................................................................................................................................................................................................................................

Dual homing An STM-1 ring with AM/AMS equipment can be dual homed on aring consisting of Metropolis® ADM compact and WaveStar® ADM16/1 senior equipment. The Metropolis® ADM (Compact shelf)supports a mix of 2 Mbit/s and STM-1 tributaries. It is possible tomix these interfaces in the same subrack for all platforms. Also, acircuit can enter a Metropolis® ADM (Compact shelf) networkthrough one type and exit through another type (if the payload that isbeing carried is compatible with both interface types). Mixing issupported not only within a terminal, but also between terminals.

ExampleFigure 2-6 Dual homing of an STM-1 access ring

STM-16 Ringwith MS-Spring

or SNCP

STM-1o Ring withLO SNCP

AM-1

AM-1AM-1

AM-1

ADM 16/1Compact

ADM 16/1Compact

ADM 16/1Compact

ADM 16/1


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Payload concatenation....................................................................................................................................................................................................................................

Concatenation To create larger payload capacity than provided by a single VC-4(149.760 Mbit/s) the SDH standard contiguous concatenation is used.In this method multiple VC’s are taken together to create a biggercapacity transport pipe.

Contiguous concatenation is only applicable at the VC-4 level. In thiscase the payload is divided over multiple VC-4’s which are carriedover the network as a single block, where the VC-4’s are mapped inadjacent AU-4 envelopes. This contiguous group of VC-4’s has onlyone single column of path overhead and also has a single pointer,which controls the phase of the complete block. Contiguouslyconcatenated VC-4’s are denoted as VC-4-4c. The c indicates the factthat contiguous mapping is used.

To transport VC-4-4c payloads through the SDH network, it isnecessary that all SDH network elements that are passed throughsupport this mapping. The Metropolis® ADM (Compact shelf)supports transport of VC-4-4c (599.040 Mbit/s) via the STM-16 lineinterfaces. The VC-4-4c payload can be added or dropped via theSTM-16 line. In addition, protection of VC-4-4c is supported withinthe MS-SPRING protection scheme in an STM-16 ring. Lastly,passing VC-4-4c’s can be non-intrusively monitored, both for faultsand performance.


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Dual node interworking (DNI)....................................................................................................................................................................................................................................

Dual node interworking The MS-SPRING protection mechanism offers very efficientprotection. But, the protection span is limited to a single ring network.In multi-ring networks there is need for a mechanism to couple ringnetworks in a way that avoids single points of failure, to allow longerend-to-end protected paths. This mechanism is called Dual NodeInterworking with Drop & Continue. Dual Node Interworking withDrop and Continue is a mechanism described in ITU-TRecommendation G.842. It is realized by connecting the two networksin question in two different locations in such a way that if onelocation fails completely, the traffic can still reach the other networkvia the second interconnection.

The MS-SPRING part of the DNI scheme allows for each individualVC-4, the assignment of primary and secondary ″add″ and ″drop″nodes. Dropped traffic is broadcasted to both primary and secondaryoutputs (″drop & continue″), while a selector in the primary nodeselects between the added traffic from the primary and from thesecondary node is forwarded onto the MS-SPRING. This selector isusually called a ″service selector″ is non-revertive and operatesaccording to the VC-4 SNC/N criteria.

The following features are supported:

• The traffic between the primary and secondary node in theMS-SPRING can be transported over ″worker″ capacity or over″protection″ capacity, called ″continue over worker″ and″continue over protection″ respectively. The latter option savesbandwidth but leads to slightly lower availability and precludes″extra traffic″ to make use of that same capacity.

• Only VC-4 payloads can be handled

• Primary and Secondary nodes can be selected for each VC-4transported over the MS-SPRING, both at the entry and at theexit side. These nodes need not be adjacent.


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Supported DNIconfigurations

The Metropolis® ADM compact supports two different DNIconfigurations:

1. Between two MS-SPRING rings. The ring interconnectionconsists in this case of four network elements. Two networkelements in each ring which are pair wise connected. See figure1–8.

2. Between an STM-16 MS-SPRING ring and a LO-SNC protectedsubnetwork. In this case the interconnect can be built with justtwo nodes, which are connected to the MS-SPRing via theaggregate interfaces and to the SNC protected network via thetributary interfaces. See figures 1–9 and 1–10. Figure 1–9 depictstraffic from the ring with MS-SPRING protection to the ringwith SNC protection. Figure 1–10 depicts traffic from the ringwith SNC protection to the ring with MS-SPRING protection.

Advantages The advantages of using this DNI mechanism are:

• Protected interconnection between MS-SPRING rings is possible,thus allowing longer end-to-end protected spans, without singlepoint of failure on the interconnection of rings.

• Possibility to interconnect the MS-SPRING scheme to the SNCPscheme, without introducing a single point of failure. This allowsthe user the flexibility to use the protection scheme of choice ineach network part, while avoiding double protection.

• Independence of the protection mechanisms in different networkparts, which results in protection switches relatively close to thefailure, so in principle easier to fault-locate.

• A higher availability compared to end-to-end SNCP protectionschemes. Especially on very long connections, more protectionagainst multiple failure is provided (as long as there is at mostone failure per protected sub-network).

Section: ApplicationsDual node interworking (DNI)

System overview

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Examples The following three figures show DNI configurations. The last figuregives a detailed view of bridges and path selectors in the twointerconnecting nodes.

Figure 2-7 DNI between two STM-16 rings with MS-SPRINGprotection

STM-16MS-SPRING

STM-16MS-SPRING

Only one direction of traffic is drawn

Bridge

Selector

Serviceselector

Drop &continue

Primarynode

Secondarynode

Stand by VC-4 connection

Active VC-4 connection

Figure 2-8 DNI between an STM-16 ring with MS-SPRINGprotection and an STM-1 ring with SNC protection.Traffic from MS-SPRING to LO-SNCP

Bridge

Selector

STM-1 ringw/VC-12 SNCP

Drop &continue

STM-16MS-SPRING

Standby VC-4 connectionActive VC-4 connection

SNCPselector

Secondarynode

Primarynode


System overview

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365-312-735Issue 1, October 2003

Figure 2-9 DNI between an STM-16 ring with MS-SPINGprotection and an STM-1 ring with SNCP protection.Traffic from LO-SNCP to MS-SPRING

Bridge

Selector

STM-1w/VC-12 SNCPSTM-16

MS-SPRING

Stand-by

Active

Primarynode

Secondarynode

Serviceselector

SNCPbridgeswitch

SNCPbridge

Figure 2-10 Detailed view of the interconnecting nodes. DNI withdrop & continue between MS-SPRING and LO-SNCP.

MS-SPRING toVC12 SNC/P

Interconnectingnodes Bridge

Selector(Non Revertive)

VC-4 Termination

Stand-by VC-12 connectionActive VC-12 connection

Stand-by VC-4 connectionActive VC-4 connection


System overview

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SDH to SONET conversion....................................................................................................................................................................................................................................

SDH to SONET In order to provide end-to-end services between the SONET countriesand the SDH countries, conversion of SONET into SDH and viceversa is a must. Reason for this conversion is, interconnection at theSONET/SDH level preserves the overhead information, which makesit possible to do end-to-end quality of service monitoring.

The SDH to SONET conversion is based on VC-3 and is currentlyavailable on the STM-1 optical tributary.

SDH/SONET conversion could be required if an end-to-end service isrequisted globally from one place in the SDH domain to a place in theSONET domain or vice versa.

ExampleFigure 2-11 SDH to SONET conversion

OC-n STS-

AU-3

VC-3

TU-3 TUG-3

VC-4 AUG STM-nSTM-nAU-4


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Leased lines / bandwith on demand....................................................................................................................................................................................................................................

Leased lines The next example shows tributary signals which can be offered to thisand other network elements.

ExampleFigure 2-12 Bandwith on demand

STM-4

ring

STM-16

ring

STM-4

1+1

STM-4 Flatring

Management

AM 1

Plus

AM 1

Plus

AM 1

Plus

AM 1

Plus

AM 1

Plus

ADM 16/1

Senior

ADM 16/1

Senior

ADM 16/1

Senior

ADM 16/1

Compact

ADM 16/1

Compact

2, 34, 45 Mbit/s

10/100 BASE-T,

STM-1e/o, STM-4 1.5, 2, 34, 45 Mbit/s

10/100 BASE-T,

STM-1e/o, STM-4

1.5, 2, 34, 45 Mbit/s

10/100 BASE-T

SDSL, X21, STM-1/o

1.5, 2, 34, 45 Mbit/s

10/100 BASE-T

SDSL, X21, STM-1/o

1.5, 2, 34, 45 Mbit/s

10/100 BASE-T

SDSL, X21, STM-1/o


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Section: Unit and subrack descriptions

Overview....................................................................................................................................................................................................................................

Purpose This section provides more detailed information of the shelfcomplements and of the units in the Metropolis® ADM (Compactshelf). Described are the physical design of subrack and units as wellas the function of the unit.

System overview

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Line/cross-connect/timing- and power unit....................................................................................................................................................................................................................................

Introduction The Line/Cross-Connect/Timing- and Power Unit is the core unit ofthe Metropolis® ADM (Compact shelf). The unit provides for fourdifferent functions, important to every multiplexer. To contribute tooverall system reliability and availability, the line/cross-connect/timing- and power supply unit (core unit can be 1 + 1equipment protected by an accompanying circuit pack.

Cross-connect part The cross-connect consists of two parts: a higher and a lower ordercross-connect, although physically the line/cross-connect/timing- andpower unit is a single circuit-pack. The higher order cross-connectswitches VC-4s and its capacity is 64 x 64. Other functions of thehigher order cross-connect are:

• VC-4 SNC protection switching

• MS-SPRING protection

• STM-1 MSP protection

• Equipment protection of 2 Mbit/s tributary slots

• Non-intrusive monitoring of VC-4s

• Broadcasting.

The lower order cross-connect switches/grooms VC-3 and VC-12s andits capacity currently ranges up to 2016 x 2016 VC-12s equivalents or32 x 32 VC-4s. Other functions of the lower order cross-connect are:

• Lower order SNCP protection

• Non-intrusive monitoring of lower order VCs

• Lower order broadcasting.

Tributary and line interfaces circuit packs are directly connected to thehigher order cross-connect via STM-1 equivalent signals (AU-4).Higher- and lower order cross-connect parts are interconnected via aninternal cross-connect-bus of 32 bi-directional VC-4s wide. The lowerorder cross-connect itself is uni-directional although traffic can beswitched/protected bi-directionally (= default situation). Higher orderVC-4s arriving from line or tributary circuit packs need only to berouted through the lower order matrix, if the lower order VC contentneeds to be groomed. Otherwise, the VC-4 can be routed through thehigher order cross-connect only.

Flexible routing and cross connecting of VC-4, VC-3 and VC-12between line port ⇔ line port, line port ⇔ tributary port and tributaryport ⇔ tributary port is possible.

Section: Unit and subrack descriptions System overview

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Timing part Another basic function of the line/cross-connect/timing- and powerunit is timing the system/network according to the timing philosophyof the network. The local oscillator, also called the SDH equipmentclock (SEC), can be synchronized to one of the user-selectable timingreferences. The Stratum-3 version with approximately 0.37 ppmstability for the first 24 hours of hold-over have been put as standardclock in the line/cross-connect unit.

The available timing modes are:

• Free-running

• Hold over

• Locked with reference to:

- One of the external sync. Inputs

- One of the STM-n inputs

- One of the 2 Mbit/s tributary inputs.

Power part The unit performs the necessary filtering functions to meet the ETSIrequirements. To maintain high availability and to ensure operationwhile a unit is repaired, these filters are duplicated. The actual DC/DCconversion is located on the individual units. The power feed remainsduplicated between Line/Cross-Connect/Timing- and Power Unit andthe other units.

Line interface part The fourth part of the unit performs the line interface functions. Theunit has an line interface with STM-4 or STM-16 transmission speed.The wavelength of the laser can be selected for 1310 nm (S4.1 orL16.1) or for 1550 nm (L4.2 or L16.2). All units with opticalinterfaces are equipped with a universal build-out optical connectortype, allowing the connector type to FC/PC or SC to be changedon-site depending on the customer needs. Core units with STM-4interfaces are equipped with two ports.

Important! Core unit CC/PT has all functions of a 64/32 Coreunit exept the optical line interface. This means the line interface-and performance monitoring functions are not on this particularCore unit. The unit is used in STM-4 applications where STM-4tributary units are used as line interfaces.

Section: Unit and subrack descriptionsLine/cross-connect/timing- and power unit

System overview

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Tributary units....................................................................................................................................................................................................................................

Introduction The tributary unit contains the low-speed electrical or opticalinterfaces. The tributary unit provides for the plesiochronous orsynchronous interface circuits and takes care of aligning thetransmission signal into TUs.

Tributary units The following tributary units are available:

Unit Description and remarks

PI-E1/63 63 interfaces of 2 Mbit/s, 75 ohms, maximum 252per NE

PI-DS1/63 63 interfaces of 1.55 Mbit/s, 100 ohms, 63 channels

SI-S1.1/4 four STM-1 optical short haul interfaces per unit,maximum 8 interfaces in 1+1 MSP protectedconfiguration or 20 interfaces in unprotectedconfiguration.

SI-L1.2/4 four STM-1 optical long haul interfaces per unit,maximum 8 interfaces in 1+1 MSP protectedconfiguration or 20 interfaces in unprotectedconfiguration.

SI-1/4 four STM-1 electrical interfaces per unit, maximum8 interfaces in 1+1 protected configuration.

PI-E3/DS3/12 12 interfaces per unit, switchable between 34 Mbit/sand 45 Mbit/s, maximum 24 interfaces in 1+1protected configuration

SI-L4.2/1 one interface STM-4 optical, long haul, maximum 5interfaces per NE

SI-S4.1/1 one interface STM-4 optical , short haul, maximum5 interterfaces per NE

IP-LAN/8 8 interfaces 10 Mbit/s or 2 interfaces 100 Mbit/s,maximum 32 x 10 Mbit/s interfaces or 8 x 100Mbit/s LAN interfaces per NE.

IP-GE/2 GbE LAN interface (can be equipped with SFPs)

Important! The maximum capacity of the core unit is anSTM-16 line signal, therefore a maximum of four STM-4tributary interfaces can be used.


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Paddle boards (PB)....................................................................................................................................................................................................................................

Paddle board types Paddle boards are used to make connecting the Tributary Units easy.Paddle boards also provide impedance conversion and/or protectionswitch facilities. The paddle boards are located at the bottom of thesubrack.

The following table shows per unit which paddle boards may be used,and it provides a description of each of these paddle boards:

Units PaddleBoard

Description

PB-E1/63 PB-E1/75/63 2 Mbit/s (E1), for unprotected 75 Ωapplications, 63 channels

PB-E1/120/63 2 Mbit/s (E1), for unprotected 120Ω applications, 63 channels

PB-E1/P75/63 2 Mbit/s (E1), for protected 75 Ωapplications, 63 channels

PB-E1/P120/63

2 Mbit/s (E1), for protected 120 Ωapplications, 63 channels

PI-DS1/63 PB-DS1/100/63

1.55 Mbit/s (DS1), for unprotectedand protected 100 Ω applications,63 channels

PI-E3/DS3/12 PB-E3/DS3/75/12

34 Mbit/s/45 Mbit/s (E3/DS3), forunprotected 75 Ω applications, 12channels

PB-E3/DS3/P75/12

34 Mbit/s/45 Mbit/s (E3/DS3), forprotected 75 Ω applications, 12channels

SI-1/4 PB-1/P75/4S STM-1, for unprotected 75 Ωapplications, 4 channels

PB-1/P75/4D STM-1, for protected 75 Ωapplications, 4 channels

IP-LAN/8 PB-LAN/100/8

Ethernet 10/100 Base-T PB withRJ45 connectors for 8 unprotectedEthernet interfaces at 10 or 100Mbit/s.


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System controller (SC)....................................................................................................................................................................................................................................

Introduction The system controller communicates with the management systems(ITM-CIT, ITM-SC and ITM-NM). The ITM-SC manages theMetropolis® ADM (Compact shelf) at the element level and theITM-NM manages the system at the network level. The ITM-CIT isused for managing small networks and for maintenance. The place ofthe system controller is shown in the next figure.

System controller Routing management information between SDH equipment and theelement management system, is done by the controller (CTL).Communication is established via so-called data communicationchannels (DCC) (= D1-3/D4-12 bytes), within the STM-N sectionoverhead signals or via one of the Q-interfaces of the system.Information destined for the local system is routed to the systemcontroller, while other information is routed from the NE via theappropriate embedded channels of the STM-n line or tributary signals.

It is possible to download software from the ITM-SC to the systemcontroller to replace or add applications in the local database. Duringdownload the old software is stored in memory as a backup. Thismeans that after download, two complete software versions areavailable on the system controller. This download can also being doneby the Local Craft Terminal (ITM-CIT).

The most important management features are:

• ITM-SC management via CMISE messages

• ITM-NM management

Figure 2-13 System Controller in the management system

ITM-NM

ITM-CIT

ITM-SC

ADM 16/1Compact

ADM 16/1Compact

10 Base-T/Q-LANinterface

DCC for remote login &remote managementRS-232/F-interface

Overhead bytes accessMDI's/MDO's office alarms


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• OSI stack with IS-IS level 2 routing and flexible NSAP address

• D4-D12 and D1-D3 support on optical STM-n interfaces

• 2 x G.703 and 2 x V.11 interfaces for access to E1, E2 and F1bytes

• 8 x Miscellaneous Discrete Input and 4 x Miscellaneous DiscreteOutput

• Remote login on ITM-CIT from Metropolis® ADM compact toan other Metropolis® ADM compact or to WaveStar® ADM 16/1Senior, Metropolis® ADM (Universal shelf) or AM/AMS

• IP tunneling over OSI.

Section: Unit and subrack descriptionsSystem controller (SC)

System overview

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Layout of the 5TAD subrack....................................................................................................................................................................................................................................

Subrack complements The subrack for the Metropolis® ADM (Compact shelf) has thefollowing 8 slots. From left to right the subrack is filled with thefollowing units (see the next figure):

• 2 slots for the core units (width=100mm each), each containing aline/cross-connect/timing- and power unit

• 5 slots for tributary units (width=35mm each)

• 1 slot for the controller unit (width=35mm).

All optical interfaces can be accessed from the front of the unit. Frontaccess to electrical interfaces is done via I/O modules that aremounted below the subrack.

The 5th tributary slot is reserved for 1:N equipment protection whenusing electrical 2 Mbit/s tributary units. It can also be used forunprotected STM-1 and STM-4 optical interfaces and GbE LANinterfaces. The TransLAN units are not allowed in tributary slot 5.

The timing and cross connect parts of the core units are 1+1equipment protected.

Figure 2-14 Metropolis® ADM (Compact shelf) subrack layoutSLOT 1 2 3 4 5 6 7 8

CO

RE

2

TS

2

TS

3

TS

4

TS

5

SC

TS

1

CO

RE

1


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User panel....................................................................................................................................................................................................................................

Introduction The user panel provides an overview of the system status.

The total external size of the subrack (width x depth x height) is:

• 450 mm x 260 mm x 625 mm (with optical interfaces and/orLAN I/O modules only). In this situation maximum 3Metropolis® ADM (Compact shelf) subracks can be housed in arack.

• 450 mm x 260 mm x 925 mm (with 2 Mbit/s I/O modules). Inthis situation maximum 2 Metropolis® ADM (Compact shelf)subracks can be housed in a rack.

User panel To provide system status information the user panel is equipped withLEDs and buttons. The user panel is integrated in the faceplate of thesystem controller. The door must be opened to operate the buttons.The Integrated Transport Management-Craft Interface Terminal(ITM-CIT) can be connected to the Metropolis® ADM (Compact


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shelf) through the RJ45 connector located on the I/O area of thesubrack. The following figure shows the User Panel layout.

Figure 2-15 User Panel layout

LED

LED

LED

LED

LED

LED

LED

LED

switch

switch

LEDFAIL

DISC

PWR

PRPT

DEF

INFO

ABN

CIT

SUPP

Section: Unit and subrack descriptionsUser panel

System overview

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Input/output area....................................................................................................................................................................................................................................

Input/output area The input/output area forms the interface for the permanent and semipermanent supervision interfaces of the Metropolis® ADM (Compactshelf). The following figure shows the layout of these miscellaneousconnections.

Figure 2-16 Layout of the input/output area

BAYTOP

FANPOWERSTAT. CLOCK

IN1OUT1 IN2OUT2

MDI/OV11STAT.

ALM1 12 2

G.703QLAN CIT-F

SEE-PROM


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Section: The management product family

Overview....................................................................................................................................................................................................................................

Purpose Today’s transport networks consist of flexible network elements, suchas cross connects and add-drop multiplexers. Lucent Technologies’management product family provides the means for managing thesenetworks. The product range consists of the Navis™ Optical NetworkManagement System, the Navis™ Optical Element ManagementSystem, the Cross connect Module (XM), the Subnetwork Controller(ITM-SC) and the Craft Interface Terminal (ITM-CIT).

System overview

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TMN framework implementation....................................................................................................................................................................................................................................

Introduction The Lucent management product range complies with the TMNbuilding blocks (ITU-T M.3010). Each management module can beassigned to one of the TMN building blocks (e.g. Operations System,Mediation Device) due to the mandatory functions performed by thatmodule. In addition, the products of the management family can alsobe situated in the layering concept of the TMN framework.

Schematic overview

Navis™ ONMS The Navis™ Optical Network Management System (formerly knownas the ITM-NM) module is the Network Management Layer (NML)system that provides integrated network layer management formulti-technology flexible transport networks. The Navis™ OpticalNetwork Management System ensures network reliability and integrityby providing network restoration capabilities and real-time alarmsurveillance.

Navis™ OEMS The Navis™ Optical Element Management System (formerly known asthe ITM-SNMS) is also a Network Management Layer (NML)system. The Navis™ Optical Element Management System is tailoredfor medium and smaller sized networks, or medium and smalleradministration domains within lager networks. It offers an integratedview of (part of) the network, and - via the EMS - a direct view on

Figure 2-17 An overview of the different management layers:

Section: The management product family System overview

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the Network Elements. It supports a basic, yet complete, set of SDHmanagement operations.

ITM-XM The ITM-XM, as an Element Management Layer (EML) system,provides support for configuration and monitoring Digital Crossconnect Systems (DXCs) allowing complete network connectivity ofthe telecommunications infrastructure.

WaveStar® ITM-SC The WaveStar®ITM-SC provides the user with the capability toprovision, configure and on-line monitor SDH sub-networks consistingof Network Elements (NEs) as single entities. So the ITM-SC is alsoan EML. It provides for node back-up capabilities, and it maintainsdata base structures for current and historic alarm and configurationdata of all the SDH NEs within its domain. The ITM-SCcommunicates with the NEs through the Gateway NEs (GNEs) thatare connected directly to the ITM-SC via Q-LAN. Communicationbetween NEs in the SDH network itself generally proceeds via theDCC bytes in the overhead of the STM-N signal. Where there is noDCC connectivity between NEs, a Local Communication Network(LCN) in the form of a Q-LAN may be used.

WaveStar® ITM-CIT The window-based WaveStar® ITM-CIT, as a local managementsystem, supports configuration, monitoring and performing systemtests on a number of SDH NE types. The ITM-CIT can managedifferent types of NEs with one software package. The CIT is a toolfor local activities associated with installing, testing and localprovisioning. Workstation, mediation and operations functions areintegrated in one physical system. The CIT is a menu-driven programthat manages one NE at a time. Remote login of NEs is possible.

Section: The management product familyTMN framework implementation

System overview

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Section: Technical data of the Metropolis® ADM (Compactshelf)

Overview....................................................................................................................................................................................................................................

Purpose This section provides technical data of the Metropolis® ADM(Compact shelf) and is supplementary to the data presented in section“Features”.

System overview

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Technical data....................................................................................................................................................................................................................................

Recommendations General recommendations:

General ITU-Tand IEEEinterface recommendations

G.707, G.708, G.709, IEEE 802

Equipment recommendations G.781, G.782, G.783, G.784, G813

Physical InterfaceRecommendations

G.957, draft G.691 for optics andG.703 for electrical interfaces

Optical safety IEC 60825-1, IEC 60825-2 andG.664, draft

Interfaces Electrical, optical and data interfaces

Electrical interfaces 2 Mbit/s according to G.703

1.55 Mbit/s according to G.703

34 Mbit/s according to G.703

45 Mbit/s according to G.703

STM-1 according to G.703

Optical interfaces STM-1, S-1.1 1310 nm short haul and

STM-1, L-1.2 1550 nm long haul

STM-4, S-4.1 1310 nm short haul and

STM-4, L-4.2 1550 nm long haul

STM-16, L-16.1 1310 nm long haul and

STM-16, L-16.2/3 1550 nm long haul

LAN interfaces Ethernet, 10/100 Mbit/s BASE-T(electrical) and 1000 BASE-X (optical)

Data interfaces input/output clock interfaces,programmable to 2048 kHz or 2048 kbit/s,75 or 120 ohms

Bandwidth management The Metropolis® ADM (Comoact shelf) has the following capacity:

System capacity 252 x 2 Mbit/s or 48 x E3/DS3 or 20 xSTM-1 or 5 x STM-4 or 32 x10/100Base-T

HO cross-connect size 64 x 64 VC-4s

LO cross-connect size 2016 x 2016 VC-12s equivalents

Section: Technical data of the Metropolis®ADM (Compact shelf)

System overview

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Complete VC-4 cross-connecting (line/line, trib/trib, line/trib). Uni-and bi-directional cross-connecting. Higher order and lower orderbroadcast functionality. Protection access on the MS-SPRING.

Performance requirements Performance monitoring and performance on jitter are according to:

Jitter on STM-N Interfaces G.813, G.825

Jitter on PDH Interfaces G.823, G.783

Error Performance G.826

Performance monitoring G.784, G.826

Physical design The outside subrack dimensions are 450 mm x 260 mm x 625 mm(with optical interfaces and/or LAN paddle boards) or 450 mm x 260mm x 925 mm (with 2 Mbit/s paddle boards). The weight of an emptysubrack (without door) is less than 18 kg.

Environmental conditions Environmental conditions according to:

Environment ETSI Class 3.1

Storage ETSI Class 1.2

Transportation ETSI Class 2.3

EMC/ESD The Metropolis® ADM (Compact shelf) fulfills the requirements asspecified in EDSI 300 386-1; Public Telecommunication Networkequipment. EMC/ESD requirements are also indicated in the tablebelow:

Radiated emission EN 55 022 Class B

Conducted emission:

AC power EN 55 022 Class B

DC power EN 55 022/ETS 300 386-1

Telecom ports CISPR 22 Class B

Electrostatic discharge IEC 1000-4-2 level 4

EN 61000-4-2 level 4

Radiated immunity IEC 1000-4-3 level 3

Electrical fast transient:

AC power IEC 1000-4-4 level 3

DC power IEC 1000-4-4 level 3

Telecom ports IEC 1000-4-4 level 3

Section: Technical data of the Metropolis®ADM (Compact shelf)Technical data

System overview

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Surges:


Indoor telecom port ETS 300 386-1

Continuous wave:


DC power IEC 1000-4-6 level 2

Telecom ports IEC 1000-4-6 level 2

Station power The following table gives information about the station input power.The power dissipation depends on the number and type of the units inthe subrack.

Battery -48/-60V DC (-41V...-72V)

Power dissipation for a fullyequipped subrack

< 204 W

Power consumption The power consumption of the units is given for worst case situation:

Unit Consumed power (max.)

Line/Cross-Connect/Timing and PowerUnit

50 W

System Controller 15 W

IP-LAN/8 41.1 W

IP-GE/2 41.9 W

2 Mbit (E1) Tributary unit 20 W

1,55/34/45 Mbit/s (DS1/E3/DS3)Tributary unit

not available

STM-1e Tributary unit not available

STM-1e (protection) Tributary unit not available

STM-1o Tributary Unit 13 W

STM-4o Tributary unit not available

Section: Technical data of the Metropolis®ADM (Compact shelf)Technical data

System overview

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3 Installing the Metropolis® ADM(Compact shelf)

Overview....................................................................................................................................................................................................................................

Purpose The document describes the installing of the network element bychecking the physical installation and equipping the network element’ssubrack with units. And after having equipped the NE with units itdescribes the provisioning actions which have to be performed withthe ITM-CIT. Network element Metropolis® ADM (Compact shelf)was formerly known as Metropolis® ADM (Compact shelf).

Objective Verifying that all cables are connected correctly, the units are in theright subrack slots and the ITM-CIT is connected correctly.

Outcome The Metropolis® ADM (Compact shelf) is installed properly andprovisioning can start.

Intended use This chapter provides the installation personnel with informationnecessary to install the units in the network element.

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Section: Checking the physical installation

Overview....................................................................................................................................................................................................................................

Purpose Before installing the Metropolis® ADM (Compact shelf) networkelement, all physical installation work must have been done. Allequipment necessary to install the NE must be present. Check thisvery carefully. Checking the physical installation includes verifyingthat the Metropolis® ADM 5TAD subrack is correctly mounted in arack.

Purpose The physical installation work for the Metropolis® ADM 5TADsubrack must have been completed and checked. Otherwise thenetwork element will not be provisioned correctly.

Prerequisites The Hardware Installation Manual for the Metropolis® ADM(Compact shelf) Subrack 5TAD must be present.

Installing the Metropolis® ADM (Compact shelf)

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Checking the subrack installation....................................................................................................................................................................................................................................

Checking the installationof the subrack

Verifying that the Metropolis® ADM 5TAD subrack is correctlymounted in a rack frame means:

• The rack is installed and all rack wiring is fitted.

• The power and station alarm voltages are connected to the rackand checked. The battery voltage should be in the range: -41 V...-72 V.

• The Metropolis® ADM 5TAD subrack is installed in the rack.

• The cabling from the I/O area box to the subrack backplane isconnected.

• The Q-LAN is correctly connected or terminated on the Q-LANconnection of the I/O area.

• The Station Clock Input or Output (STAT CLOCK IN/OUT) isconnected to the I/O area (optional). For more information onchecking the correct connection of the Station Clock interfaces,see “Checking the Station Clock Cabling”.

• The Miscellaneous Discretes Input or Output (MD I/O) connectoron the I/O area is connected correctly (optional).

• The Station Alarm connector interfaces are connected correctly(optional).

Section: Checking the physical installation Installing the Metropolis® ADM (Compact shelf)

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Checking the Q-LAN connections....................................................................................................................................................................................................................................

Introduction The Q-LAN connection on the I/O area provides one interface formanaging the Metropolis® ADM (Compact shelf) Network Element’scommunication with an Element Management System (EMS). TheIntegrated Transport Management - Subnetwork Controller (ITM-SC)is an example of an EMS.

Checks on Q-LANconnections

The following checks must be done on a Q-LAN connection:

• In case the system is not connected to a Q-LAN (then the systemis remotely managed by an EMS via the Data CommunicationChannel). In this case 50 ohms terminators must be placed on theQ-LAN connector on the I/O area.

• In case the system is directly connected to an ElementManagement System (EMS) by Q-LAN:

1. An Ethernet® adapter (transceiver box) with splitter must beconnected to the ITM-SC.

2. A 50 ohms cable termination must be placed on the splitterat the adapter. The splitter can also be used to extend theQ-LAN to another network element.

3. The EMS must be connected to the system by a 50 ohmscable between the adapter and the Q-LAN connector on thesubrack’s Input/Output (I/O) area. This cable (D-sub toRJ45) is supplied with the subrack.

• In case the network element is connected to another networkelement by the Q-LAN:

1. The network elements must have been interconnected via a50 ohms cable by their Q-LAN connectors

2. If one or more Q-LAN connectors are not used: a 50 ohmscable termination must have been placed on the unusedQ-LAN connector(s).

3. It is important that the Q-LAN is terminated with 50 ohmsat both ends when not used. A wrongly terminated Q-LANwill result in loss of management of the EMS and a flashingLED on the SC unit.


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4. Q-LAN an CIT-F can be used simultaneously.

Figure 3-1 Q-LAN cable D-sub to RJ 45

Section: Checking the physical installationChecking the Q-LAN connections


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Connections to the line/cross-connect/timing and power units....................................................................................................................................................................................................................................

Station clock inputs andoutputs

The Metropolis® ADM (Compact shelf) has two Station Clock inputs(IN1 and IN2) and two Station Clock outputs (OUT1 and OUT2) onthe I/O area. The EMS user selects the Station Clock inputs andoutputs. The inputs to connect external timing reference signals tosynchronize the network element. The outputs to synchronize externalequipment, such as a Synchronization Supply Unit (SSU).

Station clock input IN1 and Station Clock output OUT1 form theIN1/OUT1 connector pair. Station Clock input IN2 and Station Clockoutput OUT2 form the IN2/OUT2 connector pair.

Line/cross-connect/timingand power units (core unit)

These units take care of the (internal/external) timing reference signalsand provides timing synchronization functions. This unit, also namedCore Unit, is normally duplicated for protection. If they areduplicated, the power supply filter parts of both Core Units are active.Between the timing parts of the units an automatic protectionswitching relation is set up (1+1 unit non-revertive protection). Of thetiming parts of the units only one is active at a time. This is called theactive Core Unit, the other one is called the standby Core Unit. Theactive Core Unit provides the timing functions to the Metropolis®ADM (Compact shelf). The Core Units provide two external referenceinputs and outputs, both 2.048 MHz or 2.048 Mbit/s, 75 or 120 ohms.The selection of 75 or 120 ohms impedance is done by usingrespectively twisted pair wires or coax cable on the Station Clockinput connectors. For more information concerning this point, see theHardware Installation Manual for the Metropolis® ADM (Compactshelf) Subrack 5TAD. All external timing reference signals are


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serviced by the active Core Unit. In case of a failure, the externaltiming reference signals are switched to the standby Core Unit.

Figure 3-2 Line/cross-connect/timing and power (core) unitsexternal timing interfaces

Station Clock OUT1

Station Clock IN1

Station Clock IN2

Station Clock OUT2

Core Unit 1

Core Unit 2

Section: Checking the physical installationConnections to the line/cross-connect/timingand power units


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Connections to the synchronization supply unit....................................................................................................................................................................................................................................

Connections to asynchronization supply

unit

If a Synchronization Supply Unit (SSU) is connected to theMetropolis® ADM (Compact shelf) ; one of the Station Clock inputs(IN1 or IN2) and one of the Station Clock outputs (OUT1 or OUT2)must be connected to the SSU. The signal of the SSU must be 2.048MHz or 2.048 Mbit/s (75/120 ohms).

Figure 3-3 Metropolis® ADM (Compact shelf) connections to theSSU

I/O area

SSU

outin

OUT1 IN1


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Miscellaneous inputs and outputs....................................................................................................................................................................................................................................

Miscellaneous inputs The network element has a number of in- and outputs that can beused to read the status of external alarm points and also to driveexternal devices. Applications can be door contacts and dedicatedalarm loops. These in- and outputs are called Miscellaneous DiscretesInputs and Outputs (MDI/O).

The MDI’s are not to be floating with respect to system ground. Twosituations can be distinguished:

• No external voltage is used:

- the MDI is active when the resistance between input andground is less than 10 ohms

- the MDI is non-active when the resistance between inputand ground is more than 500 kohms.

• An external voltage is used:

- the MDI is active when the input is held at a voltagebetween 0 and 0.4 volts with respect to system ground

- the MDI is non-active when the input is held at a voltagebetween 2.4 and 5 volts with respect to system ground.

The MDI behaves as a voltage source of 3.3 volts with respect tosystem ground in series with a resistor of 50 kohms.

Miscellaneous outputs The MDO’s are floating with respect to system ground.

• An active MDO behaves as a voltage free resistance of less than10 ohms between the output and its associated return. It iscapable of carrying currents up to 0.5 A DC.

Figure 3-4 MDI connections

1

2

3

4

5

6

7

8

9

10

11

12

14

15

13

input 1

input 2

input 3

input 4

input 5

input 6

input 7

input 8

return for inputs 1 - 8


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3 - 9

• An non-active MDO behaves as a voltage free resistance of morethan 500 kohms between the output and its associated return. It iscapable of with standing voltages up to 72 V DC.

Figure 3-5 MDO connections

1

2

3

4

5

6

7

8

9

output 1

output 2

output 3

output 4

GND

return for output 2

return for output 1

return for output 3

return for output 4

Section: Checking the physical installationMiscellaneous inputs and outputs


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Section: Equipping the NE

Overview....................................................................................................................................................................................................................................

Purpose This section describes the equipment that can be placed in theMetropolis® ADM 5TAD subrack. It also shows the lay-out of thesubrack and the procedures for installing the units in the Metropolis®ADM (Compact shelf).

In particular, information is supplied as to which unit can be placed inwhich slot of the Metropolis® ADM 5TAD subrack an how to installthe units in the subrack.

Prerequisites All units must be available at the Metropolis ™ ADM (Compact shelf)site.


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Core units and system controller....................................................................................................................................................................................................................................

Line/cross-connect/timingand power unit

Line/cross-connect/timing and power unit: This unit is the core of thenetwork element The unit is duplicated for protection. The core unitbeing Core 1 and the protection unit being Core 2. The power supplyfilter parts of both core units are active. Between the timing parts ofthe units an automatic protection switching relation is set up (1+1 unitnon-revertive protection). Of the timing parts only one is active at atime. The cross-connect function of the unit is also duplicated forprotection. Between the cross-connect parts of the units an automaticprotection switching relation is set up (1+1 unit non-revertiveprotection). Of the cross-connect function only one is active at a time.Each core unit holds the transmit and receive connectors for theSTM-4 or for the STM-16 optical line signal by that providing fortransmission protection. The Core units with an STM-4 line have twooptical ports, the Core unit with an STM-16 line has one optical port.Core 1 unit is placed in slot position 1. Core 2 unit is placed in slotposition 2.

Type Description Slot position

SI-L16.1 1C(LKA5B)

1 STM-16 port per unit,long haul

slots 1 and 2

SI-L16.2 2C(LKA10)

1 STM-16 port per unit,long haul

slots 1 and 2

SI-L4.2 C1/2(LKA42)

2 STM-4 ports per unit,long haul

slots 1 and 2

SI-S4.1 C1/2(LKA44)

2 STM-4 ports per unit,short haul

slots 1 and 2

CC/PT (LKA15) Core unit without linepart

slots 1 and 2

System controller System controller: (SC with System Software Release R 3.3). Thesystem controller is placed in slot position 8. The system controllerprovisions and controls all units via a local LAN-bus. The SCfacilitates first line maintenance by LEDs and buttons on the frontpanel. On this front panel general status and alarm information isdisplayed. The SC communicates with the local management systemITM-CIT and/or with the centralized management systems ITM-SCand Navis™ Optical Network Management System.

Section: Equipping the NE Installing the Metropolis® ADM (Compact shelf)

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Tributary units....................................................................................................................................................................................................................................

Tributary units Tributary Units (TRIB). The tributary Units provide theplesiochronous or synchronous electrical or optical interfaces of theMetropolis® ADM (Compact shelf).

Unit types The following types are available:

Type Description Slot Position

PI-E1/63 2 Mbit/s, 63 interfaces perunit

unprotected, slots 3 to 6.1:N protected, slots 3 to6 for working units,slots 7 for the protectionunit.

PI-DS1/63 1.55 Mbit/s, 63 interfaces perunit

unprotected, slots 3 to 6.1:N protected, slots 3 to6 for working units,slots 7 for the protectionunit.

PI-E3/DS3/12

34/45 Mbit/s, 12 interfacesper unit

unprotected slots 3 to 6in combination withPB-E3/DS3/75/12

1+1 MSP protected slots3+4, 5+6 in combinationwith PB-E3DS3/P75/12

SI-1/4 STM-1, 4 electrical interfacesper unit

unprotected slots 3 to 6

1+1 MSP protected,slots 3+4, 5+6 incombination withPB-1/P75/4D

SI-S1.1/4 STM-1, 4 optical interfacesper unit


1+1 MSP protected,slots 3+4, 5+6.

SI-L1.2/4 STM-1, 4 optical interfacesper unit


1+1 MSP protected,slots 3+4, 5+6.

SI-L4.2/1 STM-4, 1 optical interface perunit


1+1 MSP protected,slots 3+4, 5+6

SI-S4.1/1 STM-4, 1 optical interface perunit


1+1 MSP protected,slots 3+4, 5+6


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Type Description Slot Position

IP-LAN/8 8 Ethernet 10/100 Mbit/sBase-T interfaces per unit, seealso chapter “Rules forInserting and ConnectingTributary Units”.

unprotected slots 3 to 6.

IP-GE/2 GbE LAN, 2 SFP interfacesper unit


Section: Equipping the NETributary units


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Paddle boards....................................................................................................................................................................................................................................

Paddle boards Paddle boards are used to connect the tributary units, to provide forimpedance conversion and/or equipment protection. Paddle boards arealways needed for electrical interfaces. Different types of paddleboards can be replaced without adjusting the cable lengths.

Unit types The following types are available:

Type Description

PB-E1/P75/63

Paddle Board for 63 channels. This paddle board isused in non-protected- and in 1:N protectedequipment applications. It provides 75 ohmscustomer interfaces. The paddle board must beinstalled underneath each working 2 Mbit/s tributaryunit.

PB-E1/P120/63

Paddle Board for 63 channels. This paddle board isused in non-protected- and in 1:N protectedequipment applications. It provides 120 ohmscustomer interfaces. The paddle board must beinstalled underneath each working 2 Mbit/s tributaryunit.

PB-E1/75/63 Paddle Board for 63 channels. This paddle board isused in non-protected equipment applications. Itprovides 75 ohms customer interfaces. The paddleboard must be installed underneath each working 2Mbit/s tributary unit.

PB-E1/120/63

Paddle Board for 63 channels. This paddle board isused in non-protected equipment applications. Itprovides 120 ohms customer interfaces. The paddleboard must be installed underneath each working 2Mbit/s tributary unit.

PB-DS1/100/63

Paddle Board for 63 channels. This paddle board isused in non-protected- and in 1:N protectedequipment applications. It provides 100 ohmscustomer interfaces. The paddle board must beinstalled underneath each working 1.55 Mbit/stributary unit.

PB-E3DS3/75/12

Paddle board for 12 channels. This paddle board isused in non-protected equipment applications. Itprovides 75 ohms customer interfaces. The paddleboard must be installed underneath each 34/45 Mbit/stributary unit.Different types of paddle boards can bereplaced without adjusting the cable lengths.


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Type Description

PB-E3DS3/P75/12

Paddle board for 12 channels. This paddle board isused in protected equipment applications. It provides75 ohms customer interfaces. The paddle board mustbe installed underneath each 34/45 Mbit/s tributaryunit.

PB-1/P75/4S Paddle board for 4 channels. This paddle board isused in non-protected equipment applications. Itprovides 75 ohms customer interfaces. The paddleboard must be installed underneath each SI-1/4tributary unit.

PB-1/P75/4D Paddle board for 4 channels. This paddle board isused in 1+1 protected equipment applications (1+1equipment protection is prepared). It provides 75ohms customer interfaces. The paddle board must beinstalled underneath each SI-1/4 tributary unit.

PB-LAN/100/8

Paddle Board provides customer interface connectors(RJ45) for 8 Ethernet 10/100 Mbit/s Base-Tinterfaces.The paddle board must be installedunderneath each IP-LAN/8 unit.

Section: Equipping the NEPaddle boards


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Equipping the subrack....................................................................................................................................................................................................................................

Slots Equipping the Metropolis® ADM (Compact shelf) consists ofinstalling units into the appropriate slots of the empty subrack. Thefollowing diagram shows the slots of the subrack.

Subrack view

Guidelines for installingthe units

Do the following before installing the units:

• Read the special handling precautions on EMC/ESD SafetyGuidelines before installing or removing parts of the equipment,(see ″EMC/ESD Safety Guidelines” in chapter ″Safety″).

• Read the Laser Safety Guidelines section before handling opticalunits or connecting or disconnecting optical fibres, (see “LaserSafety Guidelines” in chapter ″Safety″).

• Verify that the card type corresponds with the equipmentspecification for this configuration.

• Insert the units in the correct order and the correct slots, (seechapter ″Units Installation Procedure”).

• After the unit is installed the unit LED remains on (except LEDPWR on the line/cross-connect/timing and power units) until:

1. the system controller is installed

2. the network element is created (by the ITM-CIT).

3. the user assigns the unit to the slot by provisioning it withthe ITM-CIT.

Figure 3-6 Metropolis® ADM 5TAD subrack slot layoutSLOT 1 2 3 4 5 6 7 8

CO

RE

2

TS

2

TS

3

TS

4

TS

5

SC

TS

1

CO

RE

1


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During insertion of units, the LEDs on the system controller’s userpanel and the local alarm loops (station alarms) may show activity.This can be ignored until the system has been fully configured andprovisioned.

Section: Equipping the NEEquipping the subrack


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Rules for inserting and connecting tributary units....................................................................................................................................................................................................................................

PI-E1/63 For inserting this tributary unit the following rules apply:

• Paddle boards are always needed.

• If 1:N equipment protection is required for the units, slots 3 to 6are available for the working units. Slot 7 is used for theprotection unit. Paddle board PB-E1/P75/63 must be installedunderneath the working units.

• If 1:N equipment protection plus impedance conversion 120/75ohms is required for the units, slots 3 to 6 are available for theworking units. Slot 7 is then used for the protection unit. Paddleboard PB-E1/P120/63 must be installed underneath the workingunits.

• If only impedance conversion 120/75 ohms is needed, slots 3 to6 are all available for the units. Paddle board PB-E1/P120/63must be installed underneath the units.

• If no impedance conversion is needed, slots 3 to 6 are allavailable for the units. Paddle board PB-E1/P75/63 must beinstalled underneath the units.

PI-DS1/63 For inserting this tributary unit the following rules apply:


• If 1:N equipment protection is required for the units, slots 3 to 6are available for the working units. Slot 7 is used for theprotection unit. Paddle board PB-DS1/100/63 must be installedunderneath the working units.

• If 1:N equipment protection is not required for the units, slots 3to 6 are available for the working units. Paddle boardPB-DS1/100/63 must be installed underneath the working units.

PI-E3DS3/12 For inserting this tributary unit the following rules apply:


• Combinations for working and protection 1+1 MSP protectiongroups are 3/4 and 5/6. Paddle board PB-E3DS3/P75/12 must beinstalled underneath the units.

• If no protection is needed, slots 3 to 6 are all available for theunits. Paddle board PB-E3DS3/75/12 must be installedunderneath the units.


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SI-1/4 For inserting this tributary unit the following rules apply:


• Combinations for working and protection 1+1 MSP protectiongroups are 3/4 and 5/6. Paddle board PB-1/P75/4D must beinstalled underneath the units.

• If no protection is needed, slots 3 to 6 are all available for theunits. Paddle board PB-1/P75/4S must be installed underneath theunits.

SI-S1.1/4 and SI-L1.2/4 For inserting these units the following rules apply:

• No Paddle Boards are necessary

• Slots 3 to 7 are available

• Combinations for working and protection 1+1 MSP protectiongroups are 3/4, 5/6.

SI-S4.1/1 and SI-L4.2/1 For inserting these units the following rules apply:


• Slots 3 to 7 are available

• Combinations for working and protection 1+1 MSP protectiongroups are 3/4, 5/6

IP-LAN/100/8 For inserting the Ethernet LAN unit the following rules apply:

• Paddle Boards are needed to connect the IP-LAN/8 unit. One foreach IP-LAN/8 unit

• Slots 3 to 6 are available for the IP-LAN/8 units. Paddle boardIP-LAN/100/8 must be installed underneath the units.

IP-GE/2 For inserting the IP-GE/2 unit the following rules apply:


• Slots 3 to 7 are available for the IP-GE/2 units.

Subrack with paddleboards

The next figure shows an 5TAD subrack with four 2 Mbit/s paddleboards. Paddle boards PB1...PB4 correspond respectively withtributary units TS1...TS4. Tributary unit TS5 is the protection unit.

Section: Equipping the NERules for inserting and connecting tributaryunits


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365-312-735Issue 1, October 2003

For connections to the paddle boards and to the miscellaneous I/Oarea reference is made to the Hardware Installation ManualMetropolis® ADM (Compact shelf) Subrack 5TAD.

Figure 3-7 Paddle boards on the 5TAD subrack

Section: Equipping the NERules for inserting and connecting tributaryunits


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Units installation procedure....................................................................................................................................................................................................................................

When to use Follow these steps to install the units in the subrack.

Before you begin It is assumed that all connections to the input/output area have beenmade. See figure Metropolis® ADM 5TAD subrack slot layout.

Related information No related information is available.

Procedure ............................................................................................................................................................

1 Insert line/cross-connect/timing and power unit (core 1 unit) in slot 1.Place core 2 unit in slot 2.

............................................................................................................................................................

2 Insert a tributary unit in one of the slots 3 to 7. See chapter ″Rules forInserting and connecting Tributary Interface Units″.

............................................................................................................................................................

3 Insert the system controller in slot 8. It may take awhile before it ispossible to connect a management system to the system controller.

Result:

The LED on the system controller switches off. Afterapproximately 15 minutes, the LEDs on the line/cross-connect/timing and power units will switch off.

............................................................................................................................................................

4 Connect the tributary interface (electrical/optical) cabling. See chapter″Rules for Inserting and connecting Tributary Units″.

............................................................................................................................................................

5 Connect the STM-4 or the STM-16 line cabling to the front of theline/cross-connect/timing and power units or to a fiber managementpanel.

............................................................................................................................................................

6 Provision the network element with help of an EMS, according to theinstalled units and connected cables (see chapter “Guidelines forNetwork Element Provisioning”).


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E N D O F S T E P S.........................................................................................................................................................................................................................................................

Section: Guidelines for NE provisioning

Overview....................................................................................................................................................................................................................................

Purpose This section explains how to connect the ITM-CIT to the Metropolis®ADM (Compact shelf) and how the network element, afterinstallation, is provisioned using the ITM-CIT. Information is providedconcerning how the ITM-CIT should be connected to the networkelement and the correct parameters to use when provisioning the NEwith the ITM-CIT.

Prerequisites It is assumed that the Metropolis® ADM (Compact shelf), UserOperations Guide is present.


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Connecting the ITM-CIT....................................................................................................................................................................................................................................

Connecting the ITM-CIT To perform software tests and provision the system with localconfiguration parameters, an Integrated Transport Management - CraftInterface Terminal (ITM-CIT) must be connected to the Metropolis®ADM (Compact shelf) locally. The subrack is supplied with a cable(D-sub to RJ45) to connect the ITM-CIT to the network element (fordetails, refer to the Hardware Installation Manual Metropolis® ADM(Compact shelf) 5TAD).

Connect the ITM-CIT to the Metropolis® ADM (Compact shelf) viathe D-sub on the I/O area. The CIT-F and Q-LAN connections can beused simultaneously by respectively the ITM-CIT and the ITM-SC.

Figure 3-8 CITF cable from connector D-sub to connector RJ 45

Section: Guidelines for NE provisioning Installing the Metropolis® ADM (Compact shelf)

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ITM-CIT connectionsFigure 3-9 ITM-CIT connections to the Metropolis® ADM

(Compact shelf)

ITM-SCITM-SC

I/O AREAQ-LAN

RS-232 connector

CIT-F

Section: Guidelines for NE provisioningConnecting the ITM-CIT


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Provisioning with the ITM-CIT....................................................................................................................................................................................................................................

When to use Follow these steps to provision the network element with theITM-CIT.

Before you begin No prerequisites or precautions are needed when performing thisprocedure.

Related information Related information can be found in figure “Metropolis® ADM 5TADsubrack slot layout”.

Procedure ............................................................................................................................................................

1 Connect the ITM-CIT to the network element.

............................................................................................................................................................

2 Create the network element using the ITM-CIT. Identify the NE to theITM-CIT to make provisioning of this NE possible.

............................................................................................................................................................

3 Assign the inserted cards to the slots. Check whether the SystemController correctly initializes the units.

Result:

The LEDs on the inserted units switch off shortly after correctlyassigning the units in the slots.

............................................................................................................................................................

4 Confirm the MIB of the network element.

............................................................................................................................................................

5 Provision the service protection state of the units (do this for theline/cross-connect/timing and power unit) in case this unit is protectedby redundancy.

Important! Be careful when changing the protection state of aunit. A protection switch is not hit-free!

............................................................................................................................................................

6 Put the line ports in the monitored state.

Result:

The flashing of FAIL LEDs on the line/cross-connect/timing andpower units should stop when a line signal is connected to theline port and the port state is set to “monitored”.

Section: Guidelines for NE provisioning Installing the Metropolis® ADM (Compact shelf)

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365-312-735Issue 1, October 2003

............................................................................................................................................................

7 Put the tributary ports to which actual tributary signals are connectedin the monitored or auto state.

Result:

The flashing of FAIL LEDs on the tributary units should stopwhen a tributary signal is connected to the tributary port and theport state is set to monitored or auto.

............................................................................................................................................................

8 If one of the station clock inputs on the I/O area is going to be used:

• Provision the signal type of the timing reference signal.

• Put the port of the timing reference signal corresponding to theused input connector in the monitored state. Connectors IN1 andIN2 on the I/O area correspond respectively with MTP1.1 andMTP1.2 on the ITM-CIT.

• Assign the connected timing reference signal on the station clockinput to a logical timing source.

• Follow the timing provisioning procedures in chapter″Provisioning Timing″ in the User Operations Guide forMetropolis® ADM (Compact shelf).

............................................................................................................................................................

9 If one of the station clock outputs is used:

• Provision the signal type of the timing reference signal.

• Enable the station clock output corresponding to the used outputconnector. Connectors OUT1 and OUT2 on the I/O areacorrespond respectively with MTP1.1 and MTP1.2 on theITM-CIT.

............................................................................................................................................................

10 Provision the names of the MD I/Os (optional). The ITM-CIT canprovision the names of the devices that are actually connected to theMD I/O connector on the I/O box.

............................................................................................................................................................

11 Execute a local system test (LST).

............................................................................................................................................................

12 Execute a LED test.

Section: Guidelines for NE provisioningProvisioning with the ITM-CIT


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E N D O F S T E P S.........................................................................................................................................................................................................................................................

4 Testing the Metropolis® ADM(Compact shelf)

Overview....................................................................................................................................................................................................................................

Purpose This document describes the testing of the network element locally bychecking the transmission functionality. This testing is done with theuse of external test equipment.

Objective Verifying that after insertion and initialization of all units the networkelement is working correctly by looping the transmission inputs to theoutputs, and checking if the transmission path is error-free.

Outcome Secure the well-functioning of the network element after localprovisioning.

Intended use This chapter provides the testing personnel with tests which must becarried out after the Metropolis® ADM (Compact shelf) is installedfor the first time.

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Section: Measuring the optical output power

Overview....................................................................................................................................................................................................................................

Purpose To check whether the optical output power of the line- or tributaryinterface units are in the proper range.

Testing the Metropolis® ADM (Compact shelf)

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Test configuration for measuring the optical output power....................................................................................................................................................................................................................................

Optical output powermeasurement

Testing the optical line interfaces takes place per optical line- ortributary interface unit by measuring the optical output level on the Txconnector on the front of these units, see the next figure. For theoptical signals STM-1 and STM-4 however, the output level must bemeasured on the optical distribution frame.

Schematic viewFigure 4-1 Optical output power measurement

Section: Measuring the optical output power Testing the Metropolis® ADM (Compact shelf)

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Values of the optical output power....................................................................................................................................................................................................................................

Optical output power The following table gives the values of the optical transmitters inMetropolis® ADM (Compact shelf).

Unit Descriptionand remarks

Wavelengthrange

Opticaloutputpower

SI-L 16.1/1C Long HaulSTM-16

1280 - 1335nm

+3...-2 dBm

SI-L 16.2/1C Long HaulSTM-16

1480 - 1580nm

+3...-2 dBm

SI-S4.1/1 Short HaulSTM-4

1274 - 1356nm

-8...-15 dBm


1274 - 1356nm

+3 ... -2dBm

SI-L4.2/1 Long HaulSTM-4

1480 - 1580nm

+2...-3 dBm


1480 - 1580nm

+3...-2 dBm


1270 - 1360nm

-8...-15 dBm


1480 - 1580nm

0...-5 dBm


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Measure the optical output power....................................................................................................................................................................................................................................

When to use Use the following procedure to measure the optical output power.

Before you begin No prerequisites or precautions are needed when performing thisprocedure.

Related information Connections to units are described in the Hardware InstallationManual Metropolis® ADM compact Subrack 5TAD.

Procedure ............................................................................................................................................................

1 Connect, by means of a single mode fiber cable, an optical powermeter to the transmission optical output connector on the front of line-or tributary interface unit (Tx)

............................................................................................................................................................

2 Adjust the optical power meter for measurements on 850 nm, 1300nm or 1550 nm, depending on the type of line- or tributary interfaceunit used and check if the output power is in the range given in table″Values of the Optical Output Power″. If the Optical Power is not inthe range given in table ″Values of the Optical Output Power″,proceed with step [3]. If the optical power is within the range given inthe table, proceed with step [4].

............................................................................................................................................................

3 Disconnect the optical power meter and:

• clean the connectors on the optical power meter and on the line-or tributary interface unit

• check if the correct fiber cable between the optical power meterand the line- or tributary interface unit is used

• check if the optical power meter’s measuring range is inaccordance with the line- or tributary interface unit type used.Check the optical power again (start from step [2]). However, ifthe optical power is still not within the range, change the line- ortributary interface unit by a new one of the same type Wait untilthe system controller (SC) has initialized the unit and check theoptical power again (start from step [1]). Initializing the unit isindicated by the unit LED, the LED goes off or starts blinking

............................................................................................................................................................

4 Disconnect the optical power meter.

............................................................................................................................................................

5 Start from step [1] to test another line- or tributary interface unit.


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E N D O F S T E P S.........................................................................................................................................................................................................................................................

Section: Checking the high speed parts of the line- or tributaryunit

Overview....................................................................................................................................................................................................................................

Purpose To check whether the high speed circuits on the line- or tributary unitsare working correctly.


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Test configuration for looping the line- or tributary unit....................................................................................................................................................................................................................................

Line- or tributary unit test The line- or tributary interface unit signals are tested by looping theoutput signal of the unit back to the input of the unit forming part ofthe same high speed interface, see the following figure. For the opticalsignals STM-1 and STM-0 however, the output level must bemeasured on the optical distribution frame.

Schematic viewFigure 4-2 Looping the line- or tributary unit

Section: Checking the high speed parts ofthe line- or tributary unit


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Checking the line- or tributary unit....................................................................................................................................................................................................................................

When to use Use the following procedure to check the optical circuits of the line-or tributary unit.

Before you begin Before the NE is made part of the transmission network it is advisedto check the optical high speed transmission units on theirfunctioning.


Procedure ............................................................................................................................................................

1 Connect an adjustable optical attenuator between the connectors onthe front of line- or tributary interface unit 1 and set the attenuation toa value until the LED on the unit goes off.

............................................................................................................................................................

2 Increase the optical attenuation carefully until the LED on the unitflashes

Result:

The LED on the line- or tributary interface unit flashes again.

............................................................................................................................................................

3 Decrease the optical attenuation

Result:

The LED on the line- or tributary interface unit goes off again.

............................................................................................................................................................

4 Start from step [1] and perform this test on all line- and tributaryinterface units.

Section: Checking the high speed parts ofthe line- or tributary unit


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E N D O F S T E P S.........................................................................................................................................................................................................................................................

Section: Transmission test on the tributary unit

Overview....................................................................................................................................................................................................................................

Purpose To check whether the low speed circuits on the tributary units areworking correctly.


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Transmission test configuration....................................................................................................................................................................................................................................

Tributary interface unittest

For the tributary unit test, a data analyzer is needed. The type of dataanalyzer depends on the type of tributary unit to be tested. In casemore than one type of tributary unit is used in the system, for eachtype the specified Data Analyzer is needed and must be set up.

The tributary interface units are tested, one by one, by supplying anexternal tributary data signal to each channel of the tributary interfaceunit to be tested and by feeding back this signal back via the samechannel.

This test requires that the appropriate cross-connections are defined,otherwise there will be an AIS or unequipped signal at the outputs ofthe tributary unit. On how to set the cross-connections you arereferred to the Metropolis® ADM (Compact shelf) User Guide.

Data analyzer settings The following tables present the the settings for the Data Analyzer

Unit # Ch Code Bit rate1)

PI-E1/63 63 HDB-3 2048 kbit/s

PI-DS1/63 63 B8ZS andAMI

1544 kbit/s

PI-E3

or PI-DS3

12

12

HDB-3

B3ZS

34.368 Mbit/s

44.736 Mbit/s

SI-1/4 4 CMI 155.52 Mbit/s (STM-1)

SI-S1.1/4 2) 4 NRZ 3) 155.52 Mbit/s (STM-1)

SI-S4.1/12) orSI-S4.1/22) orSI-L4.2/22)

1 or 2 NRZ 3) 622.08 Mbit/s (STM-4)

IP-LAN 8 Manchester 10/100 Mbit/s Base-T

1) Pseudorandom signal.

2) Front access on the unit.

3) Optical line code.

Section: Transmission test on the tributaryunit


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365-312-735Issue 1, October 2003

Schematic view

A faster way of testing a tributary unit is by looping each channeloutput to the input of the next channel (within one unit). The firstinput and the last output must be connected to the data analyzer. Inthis way all channels of a tributary interface unit can be tested in onerun. A fast way to test the IP-LAN units is to use two of them in thesame subbay and set the one loopback on VC-4 level via the crossconnect unit. This in stead of using one IP-LAN unit and having toset more LO cross connections. For some types of tributary units it ispossible to provision internal loops, on the incoming as well as theoutgoing signal. These loops can also be used for testing. Proceduresto do so are described in the Metropolis® ADM (Compact shelf),“User Operations Guide”.

Figure 4-3 Error measurement on the tributary unit

Section: Transmission test on the tributaryunitTransmission test configuration


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Transmission test....................................................................................................................................................................................................................................

When to use Use the following procedure to check the low speed circuits of thetributary unit.

Before you begin Before the NE is made part of the transmission network it is advisedto check the electrical interface of the tributary interface unit.


Procedure ............................................................................................................................................................

1 Switch on the data analyzer and adjust both the transmitter andreceiver side according to the settings in the table ″Data Analyzersettings″.

............................................................................................................................................................

2 Disconnect the distribution frame or subrack cabling of the tributaryinterface unit to be tested. Make sure the old situation can be restoredagain if necessary!

............................................................................................................................................................

3 Connect the transmitter output of the data analyzer to the input ofchannel 1 of the tributary interface unit to be tested. See figure ″Errormeasurement on the tributary interface unit″.

............................................................................................................................................................

4 Connect the output of the same channel of the tributary interface unitto the receiver input of the data analyzer.

............................................................................................................................................................

5 Provision a loopback via the tributary interface unit or via thecross-connect unit. See figure ″Error measurement on the tributaryinterface unit″.

............................................................................................................................................................

6 Check if the signal received by the data analyzer contains errors

• If the received signal does not contain errors then the tributaryinterface unit channel under test is functioning fault-free

• In case any errors occur in the received signal check on anyactive alarms. To solve the problem you are referred to theMetropolis® ADM (Compact shelf), “Alarm Messages andTrouble Clearing Guide”.

Section: Transmission test on the tributaryunit


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............................................................................................................................................................

7 Disconnect the data Aanalyzer from the system and switch it off.Restore the cabling of the tributary interface unit just tested.

............................................................................................................................................................

8 Start from step [1] to test another tributary interface unit channel.

Section: Transmission test on the tributaryunitTransmission test


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E N D O F S T E P S.........................................................................................................................................................................................................................................................

Glossary

NUMERICS5ESSNumber 5 Electronic Switching System

5TADFive Tributary Add-Drop subrack

9TADNine Tributary Add-Drop subrack

12 digit Numerical Code (12NC)Used to as the unique identifier of an item or product. The first ten digits identify an item. Theeleventh digit specifies the particular variant of the item. The twelfth digit indicates the revisionissue. Items for which the first eleven digitsare the same are functionally equal and may beexchanged.

....................................................................................................................................................................................................................................

A AAUAlarm Adapter Unit. Radio Relay circuit pack that is used for the collection of external alarmsand remote control of external equipment.

ACAlternating Current

ACUAlarm Collection Unit. Radio Relay circuit pack that collects of equipment alarms, analoguemeasurements from internal monitoring points and calculation data.

ADMAdd-Drop Multiplexer

Administrative Unit (AU)Carrier for TUs

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G L O S S A R YG L - 1

Administrative-Unit Pointer (AU PTR)Indicates the phase alignment of the VC-n with respect to the STM-N frame. The pointerposition is fixed with respect to the STM-N frame.

AdministratorSee ITM-SC System Administrator.

AgentPerforms operations on managed objects and issues events on behalf of these managed objects.All SDH managed objects will support at least one agent. Control of distant agents is possiblevia local ″Managers″ .

AlarmThe notification (audible or visual) of a significant event. See also Event.

Alarm Indication Signal (AIS)Code transmitted downstream in a digital Network that shows that an upstream failure has beendetected and also alarmed if the upstream alarm has not been suppressed. Also called to as AllOneS.

Alarm SeverityAn attribute that defines the priority of the alarm message. The way in which alarms areprocessed depends on the severity.

AligningUsing a pointer to indicate the head of a virtual container, e.g. to create an Administrative Unit(AU) or a Tributary Unit (TU).

ALSAutomatic Laser Shutdown

Alternate Mark Inversion (AMI)A line code that employs a ternary signal to convert binary digits. In this line code successivebinary ones are represented by signal elements that are normally of alternately positive andnegative polarity but are equal in amplitude, binary zeros are represented by signal elementsthat have zero amplitude.

American Standard Code for Information Interchange (ASCII)A standard 8-bit code that is used to exchange information among data processing systems andassociated equipment.

AnomalyA difference between the actual and the desired operation of a function.

ANSIAmerican National Standards Institute

APSAutomatic Protection Switching

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ASAlarm Suppression assembly

AssemblyGathering together of payload data with overhead and pointer information (an indication of thedirection of the signal).

AssociationA logical connection between manager and agent through which management information can beexchanged.

AsynchronousSee Non-synchronous.

ATCAuxiliary Transmission Channel

ATMAsynchronous Transfer Mode

ATPCAutomatic Transmit-Power Control

AUAdministrative Unit

AU4ADAdministrative Unit 4 Assembler/Disassembler

AUGAdministrative Unit Group

AUTOAutomatic

Automatic Transmit Power Control (ATPC)Reduces the power output from the transmitter during normal propagation conditions andincreases the power output to maximum during fading periods to try to maintain the nominallevel of receiver input.

Autonomous MessageA message transmitted from the controlled network element to the ITM-SC that was not aresponse to a command that orginated in the ITM-SC.

....................................................................................................................................................................................................................................

B B3ZSBipolar 3-Zero Substitution

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B8ZSBipolar 8-Zero Substitution

BBTRBackplane Bus TRansceiver

BCBoard Controller

BCCBoard Controller Complex

BINBINary

BIPBit-Interleaved Parity

BISDNBroadband Integrated Services Digital Network

Bit Error Ratio (BER)The ratio of bits received in error to bits sent.

Bit Interleaved Parity (BIP)A method of error monitoring that uses a specified number of bits (BIP-8)

BLD OUT LGBuild-Out Lightguide

Board Controller Local Area Network (BC-LAN)The internal local area network that provides communications between the Line Controllercircuit pack and board controllers on the circuit packs that are associated with a high-speed line.

BranchingInterconnection of independent line systems.

Broadband CommunicationVoice, data, and/or video communication at greater than 2 Mbit/s rates.

Broadband Service TransportSTM-1 concatenation transport over the SLM for ATM applications.

BUSTRBUS Transmitter and Receiver

....................................................................................................................................................................................................................................

C CASChannel Associated Signaling

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CATCATastrophic

CCCross-Connection, Cross-Connect

CCIRSee ITU-R.

CCITTSee ITU-T.

CCSCommon Channel Signaling

CEPTConférence Européenne des Administrations des Postes et des Télécommunications

ChannelA sub-unit of transmission capacity within a defined higher level of transmission capacity, e.g. aCEPT-4 (140 Mbit/s) within a 565 Mbit fiber system.

CIRCommitted Information Rate

CircuitA combination of two transmission channels that permits bidirectional transmission of signalsbetween two points to support a single communication.

CITCraft Interface Terminal

Clear Channel (Cl. Ch.)A provisionable mode for the 34 and 140 Mbit/s tributary outputs that causes parity violationsnot to be monitored or corrected before the 34 and 140 Mbit/s outputs are encoded.

ClientComputer in a computer network that generally offers a user interface to a server. See alsoServer.

CMICoded Mark Inversion

COCentral Office

Co-residentA hardware configuration where the ITM-SC and ITM-NM applications can be independentlyactive at the same time on the same hardware and software platform without interfering with

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each other’s functioning.

Common Object Request Broker Architecture (CORBA)CORBA allows applications to communicate with one another no matter where they are locatedor who has designed them.

ConcatenationA procedure whereby a multiplicity of Virtual Containers are associated with each other withthe result that their combined capacity can be used as a single container across whichbit-sequence integrity is maintained.

Configuration Management (CM)Subsystem of the ITM-SC that, among other things, configures the network and processesmessages from the network.

CONN PCBConnector Printed Circuit Board

Container (C)Carries plesiochronous signal, the ″payload″ .

CPCircuit Pack

Craft Interface Terminal (CIT)Local manager for SDH network elements.

CRCCyclic Redundancy Check

Cross-Connect MapConnection map for an SDH network element; contains information about how signals areconnected between high speed time slots and low speed tributaries. See also Squelch Map.

Cross-Polarization Interference CancellationThis feature permits both orthogonal polarizations of one Radio Frequency carrier to be usedsimultaneously, which provides greater spectral efficiency.

CTPConnection Termination Point

CVCode Violation

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D DACSDigital Access & Cross-connect System

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DACScan-TSee Integrated Transport Management Network Manager.

Data Communication Channel (DCC)The embedded overhead communication channel in the SDH line. The DCC is used forend-to-end communication and maintenance. It carries alarm, control, and status informationbetween network elements in an SDH network.

Data Communication Equipment (DCE)Provides the signal conversion and coding between the data terminating equipment and the line.The DCE may be separate equipment or a part of the data terminating equipment.

Data Terminating Equipment (DTE)Originates data for transmission and accepts transmitted data.

Database AdministratorA user who administers the database of the ITM-SC application. See also User Privilege.

DCDirect Current

DCFData Communications Function

DCNData Communications Network

DCSDigital Cross-connect System

DDFDigital Distribution Frame

Dedicated Protection Ring (DP-Ring)A protection method used in some network elements.

Default Value ProvisioningThe original values are preprogrammed at the factory. These values can be overridden usinglocal or remote provisioning.

DefectA limited interruption of the ability of an item to perform a required function. The defect mayor may not lead to maintenance action this depends on the results of additional analysis.

DemultiplexingA process applied to a multiplexed signal to recover signals combined within it and restore thedistinct individual channels of these signals.

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Digital LinkA transmission span such as a point-to-point 2 Mbit/s, 34 Mbit/s, 140 Mbit/s, VC12, VC3 orVC4 link between controlled network elements. The channels within a digital link areinsignificant.

Digital SectionA transmission span such as an STM-N or 565 Mbit/s signal. A digital section may containmultiple digital channels.

DILDual In Line

Directory-Service Network Element (DSNE)A designated network element that is responsible for administering a database that mapsnetwork element names (node names) to addresses (node Id). There can be one DSNE per(sub)network.

DisassemblySplitting up of a signal into its constituents as payload data and overhead (an indication of thedirection of a signal).

DomainThe domain of an ITM-SC is the set of all SDH network elements that are controlled by thatparticular ITM-SC.

DownstreamAt or towards the destination of the considered transmission stream, i.e. in the direction oftransmission.

DPLLDigital Phase-Locked Loop

DPSData communication Packet Switch

DRDigital Radio

DRIDual-Ring Interworking

DS-nDigital Signal, Level n

DTMFDual-Tone Multi-Frequency

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Dual HomingAn STM-1/STM-4 ring with AM/AMS equipment can be dual homed on a ring consisting ofMetropolis® ADM (universal) Metropolis® ADM (Compact shelf) or WaveStar® ADM 16/1.Also STM-16 rings can be dual homed with the ADM Metropolis® (Universal shelf)).

Dual-Node InterworkingDual Node Interworking (DNI) is a configuration of two ring networks that share two commonnodes. DNI allows a circuit with one termination in one ring and one termination in anotherring to survive a loss-of-signal failure of the shared node that is currently carrying service forthe circuit.

DUSDo not Use for Synchronization

DWDMDense-Wavelength Division Multiplexing

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E EC-nElectrical Carrier, Level n

ECCEmbedded Control Channel

EDFEEthernet Dropped Frames Errors

EH&SEnvironmental Health and Safety

EINBEthernet Incoming Number of Mbytes

Electronic Industries Association (EIA)A trade association of the electronic industry that establishes electrical and functional standards.

Element Management System (EMS)See Integrated Transport Management Subnetwork Controller.

EMCElectroMagnetic Compatibility

EMIElectroMagnetic Interference

EONBEthernet Outgoing Number of Mbytes

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EOWEngineering Order Wire

Equivalent Bit Error Ratio (EBER)The calculated average bit error rate over a data stream.

Errored Second (ES)A performance monitoring parameter.

ESEnd System

ESDElectroStatic Discharge

ESPGElastic Store & Pointer Generator

ETSIEuropean Telecommunication Standardisation Institute

EventA significant change. Events in controlled network elements include signal failures, equipmentfailures, signals exceeding thresholds, and protection switch activity. When an event occurs in acontrolled network element, the controlled network element will generate an alarm or statusmessage and send it to the ITM-SC.

Event Management (EM)Subsystem of the ITM-SC that processes and logs event reports of the network.

Externally TimedAn operating condition of a clock in which it is locked to an external reference and uses timeconstants that are altered to quickly bring the local oscillator’s frequency into approximateagreement with the synchronization reference frequency.

Extra TrafficUnprotected traffic that is carried over the protection channels when that capacity is not usedfor the protection of service traffic.

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F Far End Block Error (FEBE)An indication returned to the transmitting node that an errored block has been detected at thereceiving node. A block is a specified grouping of bits.

Far End Receive Failure (FERF)An indication returned to a transmitting network element that the receiving network element hasdetected an incoming section failure.

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FASFrame Alignment Signal

FAWFrame Alignment Word

FCFull contact Connector

FCCFederal Communications Commission

FDDIFiber Distributed Data Interface

FEPFront End Processor

Free RunningAn operating condition of a network element in which its local oscillator is not locked to anysynchronization reference and uses no storage techniques to sustain its accuracy.

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G GARPGeneric VLAN Registration Protocol

Gateway Network Element (GNE)Passes information between other network elements and management systems via a DataCommunications Network.

Gbit/sGigabits per second

Geographic LocationLocation of the ITM-SC server. the geographic locationis entered as part of the installationprocedure of an ITM-SC.

Geographic Redundancy (GR)Allows protection of management for a network element by assigning the network element totwo ITM-SCs. The first primary ITM-SC usually manages the Network Element and is now inthe protected domain. If the primary ITM-SC or the link between the network element and theprimary ITM-SC fails, the secondary ITM-SC will automatically take over management of thenetwork element and is now in the protecting domain. The two ITM-SCs are connected by apeer to peer link, which they use to pass Geographic Redundancy management information toeach other. This link must be established before any network element can be protected byGeographic Redundancy.

GFPGeneric Framing Procedure

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Global Wait to Restore TimeThe time to wait before switching back to the timing reference occurs after a timing link failurehas cleared. This time applies for all timing sources in a system hence the name global. Thiscan be between 0 and 60 minutes, in increments of one minute.

GNEGateway network element - A network element that passes information between other networkelements and operations systems via a data communications network.

GUIGraphical User Interface

GVRPGeneric VLAN Registration Protocol

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H HEHost Exchange

High Density Bipolar 3 code (HDB3)Line code for e.g. 2 Mbit/s transmission systems.

High level Data Link Control (HDLC)Protocol in the data-link layer of the OSI reference model.

Higher order Path Adaptation (HPA)Function that adapts a lower order Virtual Container to a higher order Virtual Container byprocessing the Tributary Unit pointer which indicates the phase of the lower order VirtualContainer Path Overhead relative to the higher order Virtual-Container Path Overhead, andassembling/disassembling the complete higher order Virtual Container.

Higher order Path Connection (HPC)Function that provides for flexible assignment of higher order Virtual Containers within anSTM-N signal.

Higher order Path Termination (HPT)Function that terminates a higher order path by generating and adding the appropriateVirtual-Container Path Overhead to the relevant container at the path source and removing theVirtual-Container Path Overhead and reading it at the path sink.

HMIHuman Machine Interface

HOHigh Order

HoldoverAn operating condition of a clock in which its local oscillator is not locked to an externalreference but uses storage techniques to maintain its accuracy with respect to the last known

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frequency comparison with a synchronized reference.

Host NameName of the server on which the ITM-SC is running.

HP-UXUnix Operating System for a Hewlett Packard platform.

HSHigh Speed

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I I/OInput/Output

ICBInterconnection Box

ICPInterConnection Panel

IECInternational Electrotechnical Committee

IEEEInstitute of Electrical and Electronic Engineers

IFIntermediate Frequency

IFTInterFace Terminal

Integrated Transport Management Craft Interface Terminal (ITM-CIT)Local manager for SDH network elements in a subnetwork. Also called the to as Craft InterfaceTerminal.

Intelligent Synchronous Multiplexer (ISM)A network multiplexer that is designed to flexibly multiplex plesiochronous and STM-1tributary port signals into STM-1 or STM-4 line port signals.

Intermediate System (IS)A system that routes/relays management information. An SDH network element may be acombined Intermediate and end system.

IPSInter Processor Status

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ISIn-Service

IS-IS RoutingThe network elements in a management network, route packets (data) between each other usingan IS-IS level protocol. The size of a network that is running IS-IS Level 1 is limited, andtherefore certain mechanisms are employed to facilitate the management of larger networks. ForSTATIC ROUTING, it is possible to disable the protocol over the LAN connections and therebyeffectively cause the management network to be partitioned into separate IS-IS Level 1 areas. Inorder for the ITM-SC to communicate with a specific network element in one of these areas, theITM-SC must identify the Gateway network elementthrough which this specific network elementis connected to the LAN. All packets to this specific network element are routed directly to theGateway network element by the ITM-SC, before being re-routed (if necessary) within the Level1 area. For DYNAMIC ROUTING an IS-IS Level 2 routing protocol is used that allows anumber of Level 1 areas to interwork. The network elements that connect an IS-IS area toanother area are set to run the IS-IS Level 2 protocol within the network element and on theconnection to other network elements. Packets can now be routed between IS-IS areas and theITM-SC does not have to identify the Gateway network elements.

ISDNIntegrated Services Digital Network

ISOInternational Standards Organisation

ITM-SC AdministratorSee ITM-SC System Administrator.

ITM-SC System AdministratorA user of the ITM-SC application with System Administrator privileges. See also UserPrivilege.

ITUInternational Telecommunications Union

ITU-RInternational Telecommunications Union - Radio standardization sector. Formerly known asCCIR: Comité Consultatif International Radio; International Radio Consultative Committee.

ITU-TInternational Telecommunications Union - Telecommunication standardization sector. Formerlyknown as CCITT: Comité Consultatif International Télégraphique & Téléphonique; InternationalTelegraph and Telephone Consultative Committee.

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J JitterShort term variations of amplitude and frequency components of a digital signal from their idealposition in time.

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L LANLocal Area Network

LBALightwave Booster Amplifier.

LBOLine Build Out - An optical attenuator that guarantees the proper signal level and shape at thereceiver input.

LCASLink Capacity Adjustment Scheme

LCNLocal Communications Network

LDILinear Drop/Insert (Add-Drop)

LEDLight Emitting Diode

LENLocal Exchange Node

LFLow Frequency

LHLong Haul

License keyAn encrypted code that is required to enable the use of specific modules in the ITM-SC. Validlicense keys can be obtained from your provider.

LineTransmission line; refers to a transmission medium, together with the associated high speedequipment, that are required transport information between two consecutive network elements,one of which originates the line signal and the other terminates the line signal.

Line Build Out (LBO)An optical attenuator that guarantees the proper signal level and shape at the receiver input.

Line Overhead Controller (LOC)SLM circuit pack that accesses the overhead bytes from the high speed line.

LNCLiNe Controller (SLM)

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LOLow Order

LOFLoss Of Frame

LOMLoss Of Multiframe

Loop TimingA timing mode in which the terminal derives its transmit timing from the received line signal.

LOPLoss Of Pointer

LOSLoss Of Signal

Lower order Path Adaptation (LPA)Function that adapts a PDH signal to a synchronous network by mapping the signal into orde-mapping the signal out of a synchronous container.

Lower order Path Connection (LPC)Function that provides for flexible assignment of lower order VCs in a higher order VC.

Lower order Path Termination (LPT)Function that terminates a lower order path by generating and adding the appropriate VC POHto the relevant container at the path source and removing the VC POH and reading it at the pathsink.

LPULine Port Unit

LPU155Line Port Unit 155 Mbit/s

LRXLine Receiver

LSLow Speed

LTALine Terminal Application

LTXLine Transmitter

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LTX/EMLLine Transmitter with Electro-absorption Modulated Laser

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M MAFManagement Application Function

Management ConnectionIdentifies the type of routing used (STATIC or DYNAMIC). If STATIC is selected, ManagementConnection allows the gateway network element to be identified. See also IS-IS Routing.

Management Information Base (MIB)The database in the network element. Contains the configuration data of the network element. Acopy of each MIB is available in the ITM-SC and is called the the MIB image. Under normalcircumstances the MIB and MIB image of one Network Element are synchronized.

ManagerIs capable of issuing network management operations and receiving events

ManagerCapable of issuing network management operations and receiving events. The Managercommunicates with the Agent in the controlled network element.

Manufacturer Executable Code (MEC)Network element system software in binary format that is downloaded to one of the stores canbe executed by the system controller of the network element.

MappingGathering together of payload data with overhead, i.e. packing the PDH signal into a VirtualContainer.

MDIMiscellaneous Discrete Input

MDOMiscellaneous Discrete Output

Mediation Device (MD)Allows for exchange of management information between Operations System and networkelements.

MEFMaintenance Entity Function (in NE)

MEMSystem MEMory unit

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Message Communications Function (MCF)Function that provides facilities for the transport and routing of TelecommunicationsManagement Network messages to and from the Network Manager.

Metropolis® ADM MultiService MuxA network multiplexer that is designed to flexibly multiplex plesiochronous and/or STM-1tributary port signals into STM-4 or STM-16 line port signals.

MFMediation Function

MFSMulti Frame Synchronization signal

MIBThe Management Information Base is the database in the node. The MIB contains theconfiguration data of the node. A copy of each MIB is available in the EMS and is called theMIB image. Under normal circumstances, the MIB and MIB image of one node aresynchronized.

MIB imageSee Management Information Base.

Midspan MeetThe capability to interface between two lightwave network elements of different vendors. Thisapplies to high speed optical interfaces.

MLANMultiLAN

MMIMan-Machine Interface Also called Human Machine Interface (HMI)

MOManaged Object

MotifX-Windows System supplied by Open Software Foundation.

MSMultiplexer Section

MSOHMultiplex Section Overhead. Part of the SOH (Section Overhead). Is accessible only at lineterminals and multiplexers.

MSPMultiplex Section Protection. Provides capability of switching a signal from a working to aprotection section.

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MTBFMean Time Between Failures

MTBMAMean Time Between Maintenance Activities

MTIEMaximum Time Interval Error

MTPIMultiplexer Timing Physical Interface

MTTRMean Time To Repair

Multiplexer Section OverHead (MSOH)Part of the Section Overhead. Is accessible only at line terminals and multiplexers.

Multiplexer Section Protection (MSP)Provides capability of switching a signal from a working to a protection section.

Multiplexer Section Shared Protection Ring (MS-SPRING)A protection method used in multiplex line systems.

Multiplexer Section Termination (MST)Function that generates the Multiplexer Section Overhead in the transmit direction andterminates the Multiplexer Section Overhead in the receive direction.

Multiplexer Timing Source (MTS)Function that provides the timing reference to the relevant component parts of the multiplexequipment and represents the SDH network element clock.

MultiplexingA procedure by which multiple lower order path layer signals are adapted into a higher orderpath, or by which the multiple higher order path layer signals are adapted into a multiplexsection.

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N NENetwork element. The NE is comprised of telecommunication equipment (or groups/parts oftelecommunication equipment) and support equipment that performs network element functions.A Network Element has one or more standard Q-type interfaces.

NEFNetwork element function

NEMNetwork element manager

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Network Element (NE)A network element is comprised of telecommunication equipment (or groups/parts oftelecommunication equipment) and support equipment that performs network element functions.A Network Element has one or more standard Q-type interfaces. A network element ican bedirectly managed by a management system. See also Node.

Network Element Equivalent (NEE)The functionality, database size and processing power that are required from the ITM-SC aredifferent for each type of network element that is supported. Therefore each type represents acertain amount of Network Element Equivalent.

Network Mediation Unit (NMU)Collects fault and alarm events from transmission equipment. The ITM-SC can forward alarmsto the NMU. The NMU can forward alarms to an Operations System.

Network Service Access Point (NSAP)An end system address of the System Controller according to ISO 8348 AD2. The format isISO_DCC_LUCENT, which has the following structure:

NMCNetwork Maintenance Center

NMSNetwork Management System

NNENon-SDH network element

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NNINetwork Node Interface

NodeA node or network element is defined as all equipment that is controlled by one systemcontroller.

NodeDefined as all equipment that is controlled by one system controller. A node can not always bedirectly managed by a management system. See also network element.

NOMCNetwork Operation Maintenance Channel

Non-revertive switchingIn non-revertive switching, there is an active and standby high-speed line, circuit pack, etc.When a protection switch occurs, the standby line, circuit pack, etc., is selected causing the oldstandby line, circuit pack, etc., to be used for the new active line, circuit pack, etc. The originalactive line, circuit pack, etc., becomes the standby line, circuit pack, etc. This status remains ineffect when the fault clears. Therefore, this protection scheme is “non-revertive” in that there isno switch back to the original status in effect before the fault occurred.

Non-revertive switchingIn non-revertive switching there is an active and a standby high speed line, circuit pack, etc.When a protection switch occurs, the standby line, circuit pack, etc. is selected which causes theold standby line, circuit pack, etc, to be used for the new active line, circuit pack, etc. Theoriginal active line, circuit pack, etc. becomes the standby line, circuit pack, etc. This statusremains in effect when the faults clears. Therefore, this protection scheme is non-revertive inthat there is no switch back to the original status that was in effect before the fault occurred.

Non-synchronousThe essential characteristic of timescales or signals such that their significant instants do notnecessarily occur at the same average rate.

Not Protected DomainThe Not Protected Domain for the ITM-SC contains all the network elements that are managedby that ITM-SC and are not currently protected by another ITM-SC. If the ITM-SC fails, thenetwork elements in this domain are not managed by any ITM-SC. See also GeographicRedundancy.

NPINull Pointer Indication

NRZNon-Return to Zero

NSANon-Service Affecting

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NUTNon pre-emptible Unprotected Traffic

NVMNon-Volatile Memory

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O OAOptical Amplifier

OAA case toolsA software package/tool to aid the process of requirements, analysis, design and implementationof object orientated systems.

OAM&POperations, Administration, Maintenance and Provisioning

OC-nOptical Carrier, Level n

ODFOptical Distribution Frame

ODUOptical Demultiplexer Unit

OFSOut of Frame Second

OIOptical Interface

OMUOptical Multiplexer Unit

OOFOut Of Frame

OOSOut Of Service

Operations System (OS)The Operations System is the system that provides operations, administration and maintenancefunctions.

OperatorA user of the ITM-SC application with Operator privileges. See also User Privilege.

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Optical Line System (OLS)A high-capacity lightwave system that is designed to multiplex eight optical signals withdifferent wavelengths into one combined signal through an optical fiber. There is a difference of1.5 micrometer in wavelength between two multiplexed signals.

OSOperations System - A central computer-based system that is used to provide operations,administration and maintenance functions.

OSBOptical Splice Box

OSFOpen Software Foundation Operations System Function

OSF/MotifThe WaveStar® ITM-SC application has an X-windows graphical representation and thecomponents used in the “Graphical User Interface” are OSF/Motif compliant, these componentsthat are comprise of items such as: scrollbars, menus, radio buttons, etc.

OSIOpen Systems Interconnection

OW(Engineering) Order Wire

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P PABXPrivate Automatic Branch eXchange

Paddle Board - Peripheral Control and Timing link (PB-PCT)A small circuit board used in a 5ESS exchange for protection switching and optical to electricalconversion of the PCT-link.

PathA logical connection between one termination point at which a standard format for a signal atthe given rate is assembled and from which the signal is transmitted, and another terminationpoint at which the received standard frame format for the signal is disassembled.

Path AISPath Alarm Indication Signal - A path-level code that is sent downstream in a digital network asan indication that an upstream failure has been detected and alarmed.

Path Overhead (POH)The Virtual-Container Path Overhead provides integrity of communication between the point ofassembly of a Virtual Container and its point of disassembly.

Path Terminating EquipmentNetwork elements in which the path overhead is terminated.

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PCPersonal Computer

PCBPrinted Circuit Board

PCMPulse Code Modulation

PCT-linkPeripheral Control and Timing-link

PDHPlesiochronous Digital Hierarchy

Peer ITM-SCITM-SC at the other end of the peer-to-peer link.

Peer to Peer linkConnection between two ITM-SCs with Geographic Redundancy. The link is used to co-ordinatethe management of a network element. See also Geographic Redundancy.

Performance Monitoring (PM)Measures the quality of service and identifies degrading or marginally operating systems (beforean alarm is generated).

Peripheral Control and Timing Facility Interface (PCTFI)A proprietary physical link interface that supports the transport of 21 * 2 Mbit/s signals.

PIPhysical Interface, Plesiochronous Interface

PIRPeak Information Rate

PJEPointer Justification Event

PlatformFamily of equipment and software configurations that are designed to support a particularApplication.

Plesiochronous NetworkA network that contains multiple subnetworks, each of which is internally synchronous andoperates at the same nominal frequency, but the timing of any of the subnetworks may beslightly different at any particular instant.

PLLPhase Lock Loop

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PMPerformance Monitoring - Measures the quality of service and identifies degrading or marginallyoperating systems (before an alarm is generated).

PMAPerformance Monitoring Application

PointerAn indicator whose value defines the frame offset of a virtual container with respect to theframe reference of the transport entity on which the Virtual Container is supported.

POTSPlain Old Telephone Service

PPPointer Processing

PPCPointer Processor and Cross-connect

Primary ITM-SCITM-SC that is usually managing a network element. If the primary ITM-SC fails, managementof the network element is passed over to the secondary ITM-SC. A network element should beprovisioned normally on the primary ITM-SC and then be configured for use on the secondaryITM-SC. See also Geographic Redundancy.

Primary Reference Clock (PRC)The main timing clock reference in SDH equipment.

Protected DomainThe protected domain for an ITM-SC contains all the network elements for which this manageris the primary ITM-SC and which are protected by another secondary ITM-SC. See alsoGeographic Redundancy.

Protecting DomainThe protecting domain for an ITM-SC contains all the network elements for which this manageris the secondary ITM-SC. See also Geographic Redundancy.

ProtectionExtra capacity (channels, circuit packs) in transmission equipment that is not intended to beused for service, but rather to serve as backup against equipment failures.

ProvisioningAssigning a value to a system parameter.

PSAPartially Service Affecting

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PSDNPublic Switched Data Network

PSFPower Supply Filter

PSF-SIPPower Supply Filter; originally designed for an Italian customer.

PSNPacket-Switched Network

PSTNPublic Switched Telephone Network

PTProtected Terminal Power-supply filter and Timing circuit pack

PVIDPort VLAN ID

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Q Q-LANThin Ethernet LAN (10BaseT) that connects the manager to gateway network elements so thatmanagement information can be exchanged between network elements and management systems.

QAFQ-Adapter Function (in NE)

QOSQuality Of Service

Quality Level (QL)The quality of the timing signal(s) that are provided to clock a network element. The level isprovided by the Synchronization Status Marker which can accompany the timing signal. If theSystem and Output Timing Quality Level mode is “Enabled”, and if the signal selected for theStation-Clock Output has a quality level below the Acceptance Quality Level, the networkelement “squelches” the Station-Clock Output Signal, which means that no signal is forwardedat all. Possible levels are: - PRC (Primary Reference Clock) - SSU_T (Synchronization SupplyUnit - Transit) - SSU_L (Synchronization Supply Unit - Local) - SEC (SDH Equipment Clock) -DUS (Do not Use for Synchronization).

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R RARegenerator Application

Radio Protection Switching system (RPS)The main function of the RPS is to handle the automatic and manual switching from a mainchannel to a common protection channel in an N+1 system.

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Radio Relay (RR)A point-to-point Digital Radio system to transport STM-1 signals via microwaves.

RCURigid Connect Unit

RCVR Data Distribution Unit (RCVR)Radio Relay circuit pack that distributes of the protection channel and the low-priority traffic inthe receiver side.

RDDURCVR Data Distribution Unit

RDIRemote Defect Indicator. Previously known as Far End Receive Failure (FERF).

RDIRing Drop/Insert (Add-Drop)

RDSVRunning Digital Sum Violations

Receive-directionThe direction towards the cross-connect.

REGENRegenerator

Regenerator LoopLoop in a network element between the Station Clock Output(s) and one or both Station ClockInputs, which can be used to dejitterize the selected timing reference in network applications.

Regenerator Overhead Controller (ROC)SLM circuit pack that provides user access to the SDH overhead channels at repeater sites.

Regenerator Section Termination (RST)Function that generates the Regenerator Section Overhead (RSOH) in the transmit direction andterminates the RSOH in the receive direction.

REIRemote Error Indication. Previously known as Far End Block Error (FEBE).

Relay Unit (RU)Radio Relay circuit pack whose main function is to perform protection switching when theAlignment Switch in the demodulator unit is unable to perform protection switching.

Restore TimerCounts down the time (in minutes) during which the switch waits to let the worker line recoverbefore switching back to it. This option can be set to prevent the protection switch continually

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switching if a line has a continual transient fault. This field is greyed out if the mode isnon-revertive.

Revertive SwitchingIn revertive switching, there is a working and protection high speed line, circuit pack, etc.When a protection switch occurs, the protection line, circuit pack, etc. is selected. When thefault clears, service reverts back to the original working line.

RFRadio Frequency

RFIRemote-Failure Indicator

RGUReGenerator Unit

RouteA series of contiguous digital sections.

RPSRing Protection Switching

RSMRemote Switching Module

RSOHRegenerator-Section OverHead; part of the SOH.

RZReturn to Zero

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S SAService Affecting Synchronous Adapter

SAIStation Alarm Interface

SCSquare coupled Connector

SDSignal Degrade

SDHSynchronous Digital Hierarchy. Definition of the degree of control of the various clocks in adigital network over other clocks.

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SDH-TESDH - Terminal Equipment

SECSDH Equipment Clock

Secondary ITM-SCBackup ITM-SC for a network element should the primary ITM-SC fail. A network elementshould be provisioned normally on the primary ITM-SC and then be configured for use on thesecondary ITM-SC. See also Geographic Redundancy.

SectionA transport entity in the transmission media layer that provides integrity of information transferacross a section layer network connection by means of a termination function at the sectionlayer.

Section Adaptation (SA)Function that processes the AU-pointer to indicate the phase of the VC-3/4 POH relative to theSTM-N SOH and assembles/disassembles the complete STM-N frame.

Section Overhead (SOH)Capacity added to either an AU-4 or to an assembly of AU-3s to create an STM-1. Alwayscontains STM-1 framing and can contain maintenance and operational functions. SOH can besubdivided into MSOH (multiplex section overhead) and RSOH (regenerator section overhead).

SEFSupport Entity Function (in NE)

Self-healingA network’s ability to automatically recover from the failure of one or more of its components.

ServerComputer in a computer network that performs dedicated main tasks that require generallysufficient performance. See also Client.

ServiceThe operational mode of a physical entity that indicates that the entity is providing service. Thisdesignation will change with each switch action.

Severely Errored Frame Seconds (SEFS)A performance monitoring parameter.

Severely Errored Second (SES)A second that has a binary error ratio. SES is used as a performance monitoring parameter.

SeveritySee Alarm Severity

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SHShort Haul

SISynchronous Interface

SIBSubrack Interface Box

SLCSubscriber Loop Carrier

SLMSignal Label Mismatch

Smart Communication Channel (SCC)An HDLC messaging channel between the SDH-TE and the 5ESS host node. Similar to theDCC messaging channels that are located in the STM-N section overhead.

SMLService Management Level

SMNSDH Management Network

SMSSDH Management Subnetwork

SNC/ISubNetwork Connection (protection) / Inherent monitoring

SNC/NISubNetwork Connection / Non Intrusive monitoring

SNRSignal to Noise Ratio

Soft WindowsPC emulator package for HP platforms.

SOHSection Overhead. Capacity added to either an AU-4 or to an assembly of AU-3s to create anSTM-1. Always contains STM-1 framing and can contain maintenance and operationalfunctions. SOH can be subdivided in MSOH (Multiplex Section OverHead) and RSOH(Regenerator Section OverHead).

SONETSynchronous Optical Network

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Space Diversity (SD)Reception of the Radio signal via mirror effects on Earth.

SPB2MSubrack Protection for 2 Mbit/s Board

Specification and Design Language (SDL)This is a standard formal language for specifying (essentially) finite state machines.

SPISDH Physical Interface Synchronous-Plesiochronous Interface

Squelch MapTraffic map for SLM Add-Drop Multiplexer network elements that contains information for eachcross-connection in the ring and indicates the source and destination network elements for thelow-speed circuit to which the cross-connection belongs. This information is used to preventtraffic misconnection in rings that have isolated network elements or segments. See alsoCross-Connect Map.

SSMSynchronization Status Marker

StandbyThe operational mode of a physical entity that indicates that the entity is not providing service,but standby. This designation changes with each switch action.

StandbyThe operational mode of a physical entity that indicates that the entity is not providing servicebut is on standby. This designation will change with each switch action.

Station Clock Input (SCI)An external clock may be connected to a Station Clock Input.

Station Clock Output (SCO)A clock signal that can be used for other systems.

STMSynchronous Transport Module Building block of SDH.

STMSynchronous Transport Module building block of SDH

STPSpanning Tree Protocol

Stretched Ring (STRING)An open ring in which each node is an Add-Drop Multiplexer. The end nodes operate with oneequipped high-speed line.

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STSSynchronous Transport Signal; used in SONET.

STVRPSpanning Tree with VPN Registration Protocol

SubnetworkA group of interconnected/interrelated network elements. The most common connotation is anSDH network in which the network elements have Data Communications Channels (DCC)connectivity.

SupervisorA user of the ITM-SC application with Supervisor privileges. See also User Privilege.

Supervisory Unit (SU)Radio Relay circuit pack that gives comprehensive supervision and control facilities to the userby collecting information from the Alarm Collection Units and Alarm Adapter Units.

SVCEService

Switch Receive Unit (SWR)SLM circuit pack that provides the cross-connect in the receive direction between high speedline timeslots and low speed tributaries.

Switch Transmit Unit (SWT)SLM circuit pack that provides the cross-connect in the transmit direction between high speedline timeslots and low speed tributaries.

Switching Module (SM)An access module from the 5ESS switch.

Synchronization Supply Unit (SSU)A circuit pack that recovers and reshapes the clock signal in order to filter out jitter. Local(SSU_L) and Transit (SSU_T) types are available.

SynchronousThe essential characteristic of time-scales or signals such that their corresponding significantinstants occur at precisely the same average rate.

Synchronous Digital Hierarchy (SDH)A hierarchical set of digital transport structures that is standardized for the transport of suitablyadapted payloads over transmission networks.

Synchronous Equipment Management Function (SEMF)Function that converts performance data and implementation-specific hardware alarms intoobject-oriented messages for transmission over the DCC and/or the Q-interface. The SEMF alsoconverts object-oriented messages that are related to other management functions so that theycan pass across the S reference points.

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Synchronous Line Multiplexer (SLM)A line multiplexer that is designed to multiplex VC-4 and STM-1 tributary port signals intoSTM-16 line port signals.

Synchronous NetworkThe synchronization of synchronous transmission systems with synchronous payloads to amaster Network clock that can be traced to a single reference clock.

Synchronous Transport Module (STM)The information structure that is used to support (section layer) connections in SDH.

System AdministratorA user of the computer system on which the ITM-SC application can be installed. See also UserPrivilege.

System Controller (CTL)ISM circuit pack that controls the configuration of an Intelligent Synchronous Multiplexersystem.

System Controller (SC)A circuit pack that controls and provisions all units. It also contains the data communicationpacket switch functionality that is necessary for routing of management information betweennetwork elements and their management system.

System Controller (SCT)SLM Line Terminal and Regenerator network element circuit pack that provides the highestlevel of system control for the Synchronous Line Multiplexer system. The SCT circuit packprovides overall administrative control of the system. The SCT memory is included in the sameone circuit pack.

System Controller (STC)SLM Add-Drop Multiplexer network element circuit pack that provides the highest level ofsystem control for the Synchronous Line Multiplexer system. The STC circuit pack providesoverall administrative control of the system. The STC memory is provided by the MEM circuitpack.

System Controller (SYSCTL)OLS circuit pack that provides the highest level of system control for the Optical Line System.The SYSCTL circuit pack provides overall administrative control of the system. The SYSCTLmemory is provided by the SYSMEM circuit pack.

System Memory Unit (MEM)SLM Add-Drop Multiplexer network element circuit pack that provides the highest level ofsystem control for the Synchronous Line Multiplexer system. The MEM circuit pack providesmemory support for the System Controller (STC) circuit pack.

System Memory Unit (SYSMEM)OLS circuit pack that provides the highest level of system control for the Optical Line System.The SYSMEM circuit pack provides memory support for the SYSCTL circuit pack.

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T TCAThreshold Crossing Alarm

TCP/IPTransmission Control Protocol/Internet Protocol

TDEVTiming DEViation

TDMTiming Division Multiplexing

TemplateA collection of parameters that define a specific network element configuration. A templategives the user the opportunity to configure parameters in a network element with a singleoperation. The template is re-usable and allow the user to configure the parameters in manyNetwork Elements in the same way. A set of default templates is provided, and the user cancreate new templates and edit or delete user-created ones. Note that a template is alwaysassociated with one specific network element type and can not be used for other networkelement types.

TERMTerminal Multiplexer

TGUTiming Generator Unit

TITiming Interface

TLMTeLeMetry Unit

TLPTerminal with Line Protection

TMNTelecommunications Management Network

TPUTributary Port Unit

TPU-PCTTributary Port Unit - Peripheral Control and Timing link

TPU155Tributary port Unit 155 Mbit/s

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TPU2Tributary port Unit 2 Mbit/s

TPU34/45Tributary port Unit 34/45 Mbit/s

Transmit-directionThe direction outwards from the cross-connect.

Trellis Code ModulationA combined coding and modulation scheme for improving the reliability of a digitaltransmission system without increasing the transmitted power or the required bandwidth.

TRFTRansFer unit

TributaryA signal of a specific rate (2 Mbit/s, 34 Mbit/s, 140 Mbit/s, VC12, VC3, VC4, STM-1 orSTM-4) that may be added to or dropped from a line signal.

Tributary Overhead Controller (TOC)SLM circuit pack that allows access to the overhead bytes of the incoming tributary signal.

Tributary Overhead Controller (TOHCTL)OLS circuit pack that allows access to the overhead bytes of the Supervisory channel.

Tributary Unit (TU)An information structure that provides adaptation between the lower order path layer and thehigher path layer. Consists of a VC-n plus a tributary unit pointer TU PTR.

Tributary Unit Pointer (TU PTR)Indicates the phase alignment of the VC with respect to the TU in which it resides. The pointerposition is fixed with respect to the TU frame.

TSATime Slot Assignment

TSITime Slot Interchange

TTPTrail Termination Point

TUGTributary Unit Group

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U UASUnAvailable Seconds

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UIM/XA package that is used for developing the WaveStar® ITM-SC GUI for X-windows.

ULDTUltra Long Distance Transmission

Unavailable SecondsA performance monitoring parameter.

Uninterruptable Power Supply (UPS)Allows connected computer equipment to gracefully shutdown and therefore prevents damage inthe case of a power failure. Also absorbs dips in the power supply.

Universal Co-ordinated Time (UTC)An indication of the time of an event that is independent of the time-zone in which the eventoccurred. The local time can be calculated from the Universal Co-ordinated Time.

UpgradeAn upgrade is the addition of new capabilities (feature). An upgrade requires new software andmay require new hardware.

UPLUser PaneL

UpstreamAt or towards the source of the considered transmission stream, i.e. in the direction that isopposite to the direction of transmission.

User PrivilegeA permission of a user that allows to perform actions on the computer system on which theITM-SC application runs. There are the following different types of users:

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V ValueA number, text string, or other menu selection that is associated with a parameter.

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VFVoice Frequency

Virtual Container (VC)Container with a path overhead.

VLANVirtual LAN

VPNVirtual Privat Network

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W Wait to Restore Time (WRT)The time to wait before switching back after a failure has cleared in a revertive protectionscheme. This time can be between 0 and 15 minutes, in increments of one minute.

WANWide Area Network

WanderLong term variations of amplitude frequency components (below 10 Hz) of a digital signal fromtheir ideal position in time. Wander can result in buffer problems at a receiver.

WaveStar® Integrated Transport Management Subnetwork Controller (ITM-SC)Manager for SDH network elements in a subnetwork. Also called an Element ManagementSystem.

WaveStar® Network Management System (NMS)Manager for SDH network elements in a network. Formerly known as DACScan-T.

WDMWavelength Division Multiplexing

What You See Is What You Get (WYSIWYG)Information as displayed on the screen will appear in the same way on printed output.

Wideband CommunicationsVoice, data, and/or video communication at digital rates from 64 kbit/s to 2 Mbit/s.

WindowsGraphical User Interface on PC systems.

WorkingLabel attached to a physical entity. Inthe case of revertive switching the working line or unit isthe entity that carry service under normal operation. In the case of non-revertive switching thislabel has no particular meaning.

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WSWorkStation

WSFWork Station Facility

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X X-TerminalWorkstation that can support an X-Windows interface

X-WindowsGraphical User Interface on Unix Systems.

XMTRTransmitter

XMTR Switch UnitRadio Relay circuit pack that performs connections for protection switching and transmission oflow priority traffic on the protection channel.

XPICCross Polarization Interference Cancellation

XSUXMTR Switch Unit

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365-312-735Issue 1, October 2003

Index

Numerics

5TAD subrack, 2-29, 3-11

5TAD subrack layout, 3-17........................................................

A Architecture, 2-3........................................................

B bandwith on demand, 2-21

Broadcasting, 2-10........................................................

C Checking the high speedparts of line- and tributaryunits, 4-6

Checking the installation ofthe subrack, 3-3

Concatenation, 2-15

Connecting the ITM-CIT,3-24

core unit, 3-6

Core unit, 3-12........................................................

D Dual homing, 2-14

Dual Node Interworking(DNI), 2-16

........................................................

E Element ManagementLayer (EML), 2-34

EMC/ESD safetyguidelines, 1-4

EMS, 3-4

........................................................

F Feature, 2-6........................................................

I

Input/output area, 2-32

Installing the networkelement, 3-1

IP-LAN/100/8, 3-19........................................................

L Laser safety guidelines, 1-6

Lerased lines, 2-21

Looping the line- ortributary unit, 4-7

........................................................

M Measuring the outputpower, 4-2

Miscellaneous DiscretesInputs and Outputs(MDI/O), 3-9

........................................................

N Network ManagementLayer (NML), 2-34

........................................................

O Optical output powervalues, 4-4

........................................................

P Paddle boards, 2-26, 3-15

PI-DS1/63, 3-19

PI-E1/63, 3-19

PI-E3DS3/12, 3-19

Point-to-point, 2-9........................................................

Q Q-LAN connections, 3-4........................................................

R Ring access, 2-11........................................................

S SDH to SONET, 2-20

SI-1/4, 3-19

SI-S1.1/4, 3-19

SI-S4.1/1, 3-19

Station clock inputs andoutputs, 3-6

Synchronization SupplyUnit (SSU), 3-8

System Controller SC, 2-27........................................................

T Technical data, 2-36

Test configuration formeasuring the outputpower, 4-3

Testing Metropolis® ADM(Compact shelf), 4-1

TMN FrameworkImplementation, 2-34

TransLAN™, 2-12

Transmission testconfiguration, 4-10

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I N D E XI N - 1

3-193-4

3-191-4 4-10

2-26 3-15

2-34 2-12

4-4 2-34

2-16 4-1

2-34

2-14 4-3

3-93-122-36

3-6

3-244-2 2-27

3-82-15

3-34-7 3-6

4-62-21 3-19

1-6 3-19

3-19

2-203-192-10

3-12-21

2-112-32

2-3

3-4

3-172-6

2-29 3-11 2-9

3-19

Transmission test on thetributary unit, 4-9

Tributary units, 2-25, 3-13........................................................

U Unit and subrackdescriptions, 2-22

User panel, 2-30

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365-312-735Issue 1, October 2003

2-30

2-22

2-25 3-13

4-9

metropolis® adm (compact shelf) release 3

Documents