optix metro 100 product description
TRANSCRIPT
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Product Description
OptiX Metro 100 Terminal STM-1 OpticalTransmission System
Issue
Date
HUAWEI TECHNOLOGIES CO., LTD.
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Huawei Technologies Co., Ltd. provides customers with comprehensive technical support and service.
Please feel free to contact our local office or company headquarters.
Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: [email protected]
Copyright Huawei Technologies Co., Ltd. 2008. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means without prior
written consent of Huawei Technologies Co., Ltd.
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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective
holders.
Notice
The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.
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Contents
1 Location in the Network Hierarchy ................................................................................ 5
2 Equipment Features ....................................................................................................... 7
2.1 High Integration Design .................................................................................................................... 7
2.2 Low Power Consumption ................................................................................................................. 7
2.3 Easy and Flexible Installation ........................................................................................................... 8
2.4 Multi-Interface Access Capability ..................................................................................................... 8
2.5 Multi-Service Access Capability ....................................................................................................... 8
2.6 Network Level Protection for Multi-Service Signals ......................................................................... 9
2.7 Multiple Management Modes ........................................................................................................... 9
2.8 NM Data Communication with the Third-Party Equipment .............................................................. 9
2.9 Multiple Power Inputs ....................................................................................................................... 9
2.10 Uniform Alarm Management .......................................................................................................... 9
2.11 SSM Management ........................................................................................................................ 10
2.12 Rich Diagnostic Approaches ........................................................................................................ 10
2.13 In-Service Software Upgrade ....................................................................................................... 10
2.14 Easy Operation and Maintenance ................................................................................................ 10
2.14.1 LCD Control Panel ............................................................................................................... 10
2.14.2 Web-LCT .............................................................................................................................. 11
2.14.3 Easy Commissioning ............................................................................................................ 11
3 Equipment Architecture ............................................................................................... 13
3.1 Hardware Architecture .................................................................................................................... 13
3.1.1 Appearance ........................................................................................................................... 13
3.1.2 Configuration Types ............................................................................................................... 14
3.1.3 Front Panel ............................................................................................................................ 14
3.2 System Architecture ....................................................................................................................... 17
3.2.1 Boards ................................................................................................................................... 18
3.2.2 STM-1 Line Unit ..................................................................................................................... 18
3.2.3 E1 Tributary Unit .................................................................................................................... 18
3.2.4 Cross-Connect Unit ............................................................................................................... 19
3.2.5 Clock Unit .............................................................................................................................. 19
3.2.6 SCC Unit ................................................................................................................................ 19
3.2.7 Power Unit ............................................................................................................................. 19
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4 Networking Application ................................................................................................ 21
4.1 Network Topology ........................................................................................................................... 21
4.1.1 Independent Networking........................................................................................................ 21
4.1.2 Hybrid Networking with the OptiX Transmission Equipment ................................................. 22
4.2 NM Data Interworking with the Third-Party Equipment .................................................................. 22
4.2.1 Extended D Bytes .................................................................................................................. 22
4.2.2 TP4 (OSI over DCC) .............................................................................................................. 23
4.2.3 IP over DCC........................................................................................................................... 24
4.2.4 SNMP Interface ..................................................................................................................... 25
5 Technical Specifications .............................................................................................. 29
5.1 Hardware Parameters .................................................................................................................... 29
5.2 Optical Interface Performance ....................................................................................................... 29
5.3 PDH Electrical Interface Performance ........................................................................................... 30
5.4 Power Supply ................................................................................................................................. 31
5.5 Environment ................................................................................................................................... 31
5.6 EMC ............................................................................................................................................... 31
5.7 Availability ....................................................................................................................................... 31
A Glossary ........................................................................................................................ 33
B Acronyms and Abbreviations ...................................................................................... 39
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1 Location in the Network HierarchyThis chapter describes the network position of the OptiX Metro 100 in thetransmission network.
As the network terminal unit of transport networks, the OptiX Metro 100 providesSTM-1 optical interfaces to access 16 x E1 services.
Figure 1-1shows the location of the OptiX Metro 100 in a transmission network.
Figure 1-1 Location of the OptiX Metro 100 in a transmission network
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2 Equipment FeaturesThis chapter describes the following features of the OptiX Metro 100:
High integration design Low power consumption
Easy and flexible installation
Multi-interface access capability
Multi-service access capability
Network level protection for multi-service signals
Multiple management modes
NM data communication with the third-party equipment
Multiple power inputs
Uniform alarm management SSM management
Rich diagnostic approaches
In-service software upgrade
Easy operation and maintenance
2.1 High Integration Design
The OptiX Metro 100 is designed in a case shape. The dimensions of the chassis are
436 mm (W) x 200 mm (D) x 42 mm (H).Except for the power module, all the other functional units are integrated into onecircuit board only.
2.2 Low Power Consumption
The normal power consumption of the OptiX Metro 100 is about 20 W. There is noneed for fans.
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2.3 Easy and Flexible Installation
The OptiX Metro 100 features easy and flexible installation. Based on the environment,you can install the OptiX Metro 100:
In the ETSI 300-mm cabinet or ETSI 600-mm cabinet
In the 19-inch cabinet
In the OC-500 outdoor cabinet. For details, refer to the OC-500 IntegratedChassis User Manual
On the wall
On the desktop
2.4 Multi-Interface Access Capability
Table 2-1lists the external interfaces of the OptiX Metro 100.
Table 2-1 Interfaces of the OptiX Metro 100
Interface Type Function Connector
Serviceinterface
STM-1 opticalinterface
Input/Output the STM-1optical signal.
SC or LC
E1 electricalinterface
Input/Output the 16xE1electrical signal.
DB44
Management
interface
NM-LAN Connect to NM system, such
as, the iManager T2000 orWeb-LCT.
RJ-45
Alarm interface Input/Outputalarm interface(ALARM)
Connect to the externalcentralized alarm equipmentor the environment monitoringdevice.
RJ-45
Powerinterface
AC interface Connect to the AC powersupply.
3-coresocket
DC interface Connect to the DC powersupply.
4-pinsocket
2.5 Multi-Service Access Capability
The OptiX Metro 100 can access:
16xE1 services
2xSTM-1 services
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2.6 Network Level Protection for Multi-Service Signals
The OptiX Metro 100 provides the accessed services with the following protectionmodes:
1+1 and 1:1 line multiplex section protection (LMS)
Sub-network connection protection (SNCP)
2.7 Multiple Management Modes
The OptiX Metro 100 can be managed by:
OptiX iManager T2000 NM system
Web-LCT local management system
LCD control panel
2.8 NM Data Communication with the Third-PartyEquipment
The OptiX Metro 100 communicates the NM data with the third-party equipmentthrough:
D1D3 or D4D12 bytes ECC communication
TP4 (OSI over DCC)
IP over DCC SNMP
2.9 Multiple Power Inputs
The OptiX Metro 100 supports the power inputs below:
100 V to 240 V AC
-48 V to -60 V DC
2.10 Uniform Alarm Management
The OptiX Metro 100 provides three Boolean input interfaces to uniformly manage thealarms and external monitoring equipment. The OptiX Metro 100 also provides oneBoolean output interface to output alarms to the centralized alarm system.
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2.11 SSM Management
The OptiX Metro 100 supports:
Standard synchronization status message (SSM)
Extended SSM
2.12 Rich Diagnostic Approaches
The OptiX Metro 100 supports the following diagnostic approaches:
Outloop on STM-1 ports
Inloop and outloop of the VC-4 path
Inloop and outloop of the VC-3 path
Inloop and outloop on E1 ports
Indicators on the equipment
Equipment power-off alarms
LCD control panel
Fault diagnosis function
2.13 In-Service Software Upgrade
The OptiX Metro 100 supports in-service upgrade of the NE software and logicsoftware.
2.14 Easy Operation and Maintenance
The OptiX Metro 100 provides an LCD control panel and a Web-LCT configurationtool to ease operation and maintenance.
The OptiX Metro 100 can start self-test function through the LCD control panel tolocate the fault on the equipment conveniently.
2.14.1 LCD Control Panel
You can operate the OptiX Metro 100 through the LCD control panel.
The LCD control panel provides the following functions:
Queries and sets the NE ID and IP address.
Queries and sets loopback on ports.
Queries and sets clock source priority.
Queries the impedance type of E1 ports.
Queries equipment software and PCB version.
Queries and sets the type of the D byte channel.
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Queries and sets the DCC protocol stack.
Queries and sets the role of the OSI protocol stack.
Queries NE critical alarms.
Queries and sets NE time and NE date.
Starts hardware self-check and queries the result.
Starts fault diagnosis and queries the result.
Modifies the password of Admin.
2.14.2 Web-LCT
The OptiX Metro 100 provides the Web-LCT (Local Craft Terminal) software. Thesoftware offers good management and configuration functions, with simple interfacedesign and parameter input. It also provides the service configuration wizard foreasier operation.
The Web-LCT provides the following functions: Configuration guide
Equipment configuration
Service configuration
Alarm query
Performance operation
Protection management
Clock configuration
Security management
Equipment maintenance Data backup
2.14.3 Easy Commissioning
Through the LCD control panel, the OptiX Metro 100 can start self-check program toease the equipment commissioning.
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3 Equipment ArchitectureThis chapter describes the appearance, system structure and functions of each unit ofthe OptiX Metro 100.
3.1 Hardware Architecture
3.1.1 Appearance
The OptiX Metro 100 allows multiple configuration modes depending on the powermodules. These configuration modes are similar in the structure except the availablepower interface types.
Figure 3-1andFigure 3-2show several common configurations.
Figure 3-1 OptiX Metro 100 with dual pluggable optical interfaces (48 V to60 V DCinput+16xE1)
Figure 3-2 OptiX Metro 100 with dual pluggable optical interfaces (100 V to 240 V ACinput+16xE1)
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3.1.2 Configuration Types
The OptiX Metro 100 allows multiple configuration modes depending on the powermodules. The modules types are shown inTable 3-1.
Table 3-1 Modules provided by the OptiX Metro 100
Module Optional Configuration Item
Power module 100 V to 240 V AC
48 V to60 V DC
Line module Dual optical interfaces, dual-fiber LC (SFP)
Tributary processing module 16xE1 services
NOTE
SFP: small form-factor pluggable
All PDH tributary units provide the 75-ohm unbalanced interface and the 120-ohm balancedinterface.
3.1.3 Front Panel
As shown inFigure 3-3,the front panel provides interfaces, buttons and indicators forvarious purposes. The following section describes the front panel with theconfiguration of "48 V to60 V DC input+2xSTM-1+16xE1".
Figure 3-3 Front panel of the OptiX Metro 100 (48 V to60 V DCinput+2xSTM-1+16xE1)
Interfaces
Table 3-2lists details about the interfaces on the front panel.
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Table 3-2 Interfaces on the front panel
No. Interface Function Connector Type
1 Power
supplyinterface
100 V to 240 V AC power
module -48 V to -60 V DC power
module(Figure 3-3)
The connector for the
DC power is a 4-pinsocket.
The connector for theAC power is a 3-coresocket.
2 TX/RX Optical interface: Input/OutputSTM-1 optical signals.
LC (SFP)
3 E1 1-8 E1 electrical interface:Input/Output 8xE1 electricalsignals.
DB44
4 E1 9-16 E1 electrical interface:Input/Output 8xE1 electricalsignals.
DB44
5 NM-LAN Connect to the NM system tomanage and configure theequipment.
RJ-45
6 ALARM Provide 3-input and 1-outputBoolean value.
RJ-45
7 ESD Connect to an ESD wrist strap.Always wear an ESD wrist strap
when operating the equipment toavoid static damage to it.
LCD and Operation Buttons
You can configure data for the equipment through the LCD and buttons.Table 3-3listsdetails about the LCD and buttons on the front panel.
Table 3-3 LCD and buttons on the front panel
No. LCD/Button Function
8 Power Power switch, used to power on/off the power supply.
9 LCD Used to show the equipment configuration and query result.
10 ENT/MENUUsed along with buttons ESC, , and to configure theequipment and query the configuration.
11 ACO Audible alarm cut button, used to turn off/on an audible alarm.
12 RST Reset button (RESET), used to reset the equipment.
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No. LCD/Button Function
13 LAMP TEST Used to test the LED test. Pressing it turns on all indicators onthe front panel except the ALARM indicator. Releasing itrenews all indicators to the working state.
Indicators
On the front panel, there are indicators for optical signals, E1 service signals andEthernet service signals. You can judge whether the equipment is working normallythrough these indicators.
Table 3-4describes each indicator on the front panel.
Table 3-4 Indicator on the front panel
Indicator Status Description
LOS (loss of linesignal indicator)
On. The STM-1 optical interface cannotreceive the optical signals or theoptical power is too low.
RUN (runningindicator)
Flashes 10 timesevery second.
The NE software is being loaded, orthe SCC board self-check state isentered.
Off. The NE software is lost, waiting to beloaded.
Flashes onceevery second.
Normal operation.
MAJ (major alarmindicator)
Flashes. The critical or major alarm occurs.
MIN (minor alarmindicator)
Flashes. The minor alarm occurs.
ACO (alarm cutindicator)
On. The equipment has cut the alarmsound.
E1 (multicolor
indicator alerting lossof E1 signal)
Off. E1 port is not used.
Constantly on,red.
An E1_LOS alarm occurs to the E1path. Each E1 path corresponds toone multicolor indicator.
Flashes, red. The major alarm (not E1-LOS) occursto the E1 path.
Constantly on,yellow.
The minor alarm occurs to the E1path.
Flashes, yellow. BIP_EXC alarm occurs to the E1 path.
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Indicator Status Description
Constantly on,green.
The E1 path is in use and no alarmoccurs.
Indicator of RJ-45:
LINK (green)
On. The link connection is normal.
Off. The link is not connected or broken.
Indicator of RJ-45:
ACT (yellow)
Flashes or on. Data is being transmitted.
Off. No data is being transmitted.
3.2 System Architecture
For the OptiX Metro 100 accessing multiple services, its system architecture is dividedfunctionally into the following parts. SeeFigure 3-4.
STM-1 line unit
E1 tributary unit
Cross-connect unit
Clock unit
SCC unit
Power unit
Figure 3-4 ptiX Metro 100 system architecture
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3.2.1 Boards
The OptiX Metro 100 integrates multiple functional units on a hardware backplane.For easy management and maintenance, each functional unit consists of differentphysical boards.
Table 3-5lists the physical boards of each functional unit.
Table 3-5 Physical boards of the OptiX Metro 100
Boards Function In
PIW48 48 V to60 V DC power Slot1
PWAC 100 V to 240 V AC power Slot1
SCC System control and communication board Slot2
SFP Small form-factor pluggable, optical module, line board Slot3
XCSA ADM cross-connect board Slot4
STGA ADM clock board Slot5
FP1D 16xE1 tributary board Slot6
3.2.2 STM-1 Line Unit
The OptiX Metro 100 can form an ADM when configured with the SFP line unit.
The STM-1 line unit provides the following functions:
Processes up to two STM-1 signals.
Provides alarms and performance events for checking line modules.
Provides outloop on the line port, inloop/outloop of the VC-4 path and automaticrelease of the software loopback for quick fault location.
Supports automatic laser shutdown (ALS) function.
Supports S-1.1 optical module, and transmits distance is 15km.
Provides small form-factor pluggable (SFP) optical modules and supports LCinterfaces.
3.2.3 E1 Tributary Unit
The OptiX Metro 100 can form different equipment types when configured withdifferent tributary units like 75-ohm or 120-ohm FP1D.
The FP1D tributary unit provides the following functions:
Processes up to 16xE1 signals.
Supports the I.421 NT1 feature.
Collects the alarms and performance events of the VC-12 channel.
Provides inloop/outloop to E1 signals for fast fault location.
Provides E1 signal pseudo-random binary sequence test function.
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Extracts the 2 MHz clock of the first and ninth E1 signals and sends it to the clockunit as the tributary clock source.
Provides the 75-ohm or 120-ohm interface impedance (the impedance of theinterface is defined before delivery).
NOTE In the I.421 working mode, the tributary unit does not support the pseudo-random binarysequence (PRBS) test.
3.2.4 Cross-Connect Unit
The cross-connect unit (XCS) is a functional unit necessarily configured for variousOptiX Metro 100 equipment types.
The cross-connect unit provides the following functions:
Provides the service grooming capability of the add/drop multiplexer (ADM) .
The cross-connect unit of ADM supports 4x4 VC-4 full cross-connection, 12x12VC-3 full cross-connection and 252x252 VC-12 full cross-connection.
3.2.5 Clock Unit
The clock unit (STGA) is a functional unit necessarily configured for various OptiXMetro 100 equipment types.
The clock unit provides the following functions:
Provides clock synchronization for the STM-1 line unit and E1 tributary unit.
Locks the line clock of the STM-1 line unit or the first and the ninth tributary clocksource of the E1 tributary unit.
The clock unit (STGA) supports the locked mode, holdover mode and free-runmode.
Provides five clock sources: two line clock sources, two tributary clock sourcesand one internal clock source.
3.2.6 SCC Unit
The SCC unit is a functional unit necessarily configured for various OptiX Metro 100equipment types.
The SCC unit provides the following functions:
Provides data communication channels (DCC) to communicate with remote NEs. Communicates with the STM-1 signal processing unit and E1 signal processing
unit, to monitor their alarms and performances, and report them to the NMsystem.
3.2.7 Power Unit
The OptiX Metro 100 supports 100 V to 240 V AC input and48 V to60 V input, toprovide power supply for the service units.
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4 Networking ApplicationThis chapter describes the network topology for the OptiX Metro 100 and NM datainterworking between the OptiX Metro 100 and the third-party equipment.
4.1 Network Topology
The OptiX Metro 100 is applied as the network terminal unit of the transmissionnetwork. The traffic is light and the networking is simple.
The OptiX Metro 100 may form a network alone, or work with other transmissionequipment, such as the OptiX 155/622H(Metro1000).
4.1.1 Independent Networking
The OptiX Metro 100 supports the NE type of ADM. It can form chain networks andring networks independently, as shown inFigure 4-1andFigure 4-2.
Figure 4-1 Chain network composed of the OptiX Metro 100
Figure 4-2 Ring network composed of the OptiX Metro 100
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4.1.2 Hybrid Networking with the OptiX TransmissionEquipment
The OptiX Metro 100 can work with other transmission equipment in a network. See
Figure 4-3.
Figure 4-3 Hybrid networking with other equipment
4.2 NM Data Interworking with the Third-PartyEquipment
4.2.1 Extended D Bytes
As shown inFigure 4-4,the OptiX Metro 100 is interconnected with the third-partyequipment.
You can flexibly configure the NM data on the D1-D3 or D4-D12 bytes at the crosspoints of the OptiX Metro 100 and third-party equipment.
Figure 4-4 Hybrid networking through extended D bytes
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4.2.2 TP4 (OSI over DCC)
OSI over DCC means performing DCC communication with OSI protocol stackwithout occupying extra overhead or service channels. It can fulfill the differentdemands for the DCC interworking and networking among the equipment of differentvenders.
OSI over DCC can realize the NM data interworking among the equipment of differentvenders.
Managing the OptiX Equipment Through OSI DCN
This means directly managing the network composed of the OptiX equipment with therouting function at the third layer of OSI data communication network (DCN). SeeFigure 4-5.
Figure 4-5 Managing the OptiX equipment through OSI DCN
Managing the OptiX Equipment Through OSI Network Composed of theThird-Party Equipment
This means managing the network composed of the OptiX equipment with the routingfunction at the third layer of OSI protocol stack of the third-party equipment. SeeFigure 4-6.
Figure 4-6 Managing the OptiX equipment through OSI network composed of thethird-party equipment
Traversing the OptiX Equipment to manage the Third-Party Equipment
This means managing the third-party equipment that adopts the OSI protocol stackwith the routing function of the OSI protocol stack of the OptiX equipment. SeeFigure4-7.
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Figure 4-7 Traversing the OptiX equipment to manage the third-party
4.2.3 IP over DCC
IP over DCC indicates the NM data interworking at the network layer and adopts IPprotocol sharing to transmit the NM data.
The GNE, DCN and element management system (EMC) must support the IPprotocol at the same time. As a result, the network composed of the third-partyequipment and that composed of the OptiX Metro 100 can form a DCN based on thestandard protocol.
There are two ways of networking based on IP over DCC:
The NM data of the OptiX Metro 100 is transparently transmitted by thethird-party equipment through IP over DCC. SeeFigure 4-8.
The NM data of the third-party equipment is transparently transmitted by theOptiX Metro 100 through IP over DCC. SeeFigure 4-9.
Figure 4-8 NM data transparently transmitted by the third-party equipment
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Figure 4-9 Transparently transmitting the NM data of the third-party equipment
4.2.4 SNMP Interface
SNMP is a standard NM protocol based on the user datagram protocol (UDP)communication. The OptiX Metro 100 provides an interface that supports the SNMPprotocol. Any NM system that supports the SNMP protocol can access and managethe OptiX Metro 100 through this interface.
Interconnecting the NM System and NE Directly Through the IP NetworkThe SNMP NM system is directly interconnected with the OptiX Metro 100 through theIP network, as shown inFigure 4-10.
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Figure 4-10 Interconnecting the SNMP NM system and NE directly through the IPnetwork
The SNMP interface does not receive or transmit the NM communication packetthrough the communication modules, but directly monitors the UDP161 port and waitsfor the NM request at this port.
The SNMP sends the active reporting packet (event report) to the UDP162 port(configurable) of the NM system.
In this networking mode, the NM system must configure the SNMP NM configurationdata and issue the NM data, including the IP reporting port of the NM system,read-write community name and reporting packet version, to the NE to be accessedthrough the non-SNMP NM system previously.
The NM system can directly access the equipment and adopt direct UDPcommunication with the SNMP interface. Otherwise, the SNMP NM system cannotaccess the NE.
Managing the Remote NE Through SNMP over ECC by the NM System
The SNMP NM system manages the remote NE (OptiX Metro 100) through the NE IPtransparent transmission. SeeFigure 4-11.
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Figure 4-11 Managing the remote NE (OptiX Metro 100) through the NE IPtransparent transmission by the SNMP NM system
The SNMP protocol adopts UDP as its protocol at transport layer, requiring direct IPcommunication between the NM system and the equipment.
The OptiX Metro 100 supports the IP transparent transmission, so the SNMP NMsystem can directly access the remote NE.
All the NEs in the sub-network must support IP over DCC. Otherwise, the SNMP NMsystem is refused to access the remote NE.
Before accessing the remote NE, you must configure the NM configuration data of theremote NE. Otherwise, the SNMP NM system cannot access the remote NE.
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5 Technical SpecificationsFor ease of query, this chapter summarizes the technical specifications of the OptiXMetro 100.
5.1 Hardware Parameters
Table 5-1lists the weight, dimensions and power consumption of the OptiX Metro 100.
Table 5-1 Hardware parameters of the OptiX Metro 100
Equipment PowerConsumption
Weight Dimensions
OptiX Metro100
In full configuration,it is about 17 W.
In full configuration,it is about 3 kg.
436 mm (W) x 200mm (D) x 42 mm (H)
5.2 Optical Interface Performance
Table 5-2lists the performance of the STM-1 optical interface.
Table 5-2 STM-1 optical interface performance
Item Performance Value
Rate 155520 kbit/s
Optical module S-1.1
Working wavelength range 1261 nm to 1360 nm
Mean launched power -8 dBm to -15 dBm
Minimum extinction ratio 8.2 dB
Minimum sensitivity -28 dBm
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Item Performance Value
Minimum overload -8 dBm
Allowable frequency deviation at the optical input 20 ppm
5.3 PDH Electrical Interface Performance
Table 5-3lists the performance of the E1 electrical interface.
Table 5-3 E1 electrical interface performance
Item Performance Value StandardCompliance
Rate 2048 kbit/s
Code HDB3
Allowable frequency deviationat the input
2048 kbit/s50 ppm ITU-T G.703
Jitter tolerance at the input f1 (20 Hz): 18 UI
f2 (2.4 kHz): 18 UI
f3 (6 kHz/8 kHz): 1.5 UI
f4 (100 kHz): 1.5 UI
ITU-T G.823
AIS signal bit rate at the output 50 ppm ITU-T G.703Mapping jitter at the tributaryinterface
B1 (f1f4): 0.4 UIp-p
B2 (f3f4): 0.075 UIp-p
ITU-T G.783
Combined jitter at the tributaryinterface
B1 (f1f4): 0.4 UIp-p
B2 (f3f4): 0.075 UIp-p
ITU-T G.783
System output jitter at thetributary interface
B1 (f1f4): 1.5 UIp-p
B2 (f3f4): 0.2 UIp-p
ITU-T G.823
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5.4 Power Supply
Table 5-4lists the power supply parameters of the OptiX Metro 100.
Table 5-4 Power supply parameters
Power Supply Input Voltage Range
100 V to 240 V AC 90 V to 260 V
48 V to60 V DC 38.4 V to72 V
5.5 Environment
Table 5-5lists the environment indexes of the OptiX Metro 100.
Table 5-5 Environment indexes
Environment Condition Temperature Humidity
Long-term normal working condition 0to 45 10% to 90%
Short-term working environment 5to 0
45
to 50
5% to 10%
90% to 95%
Short-term: The consecutive working time does not exceed 96 hours and theaccumulative working time each year does not exceed 15 days.
The value of temperature and humidity of the equipment is measured 1.5 metersabove the ground and 0.4 meter before the equipment.
5.6 EMC
The electromagnetic compatibility (EMC) design of the OptiX Metro 100 is compliantwith the ETSI ETS EN 300386 recommendations.
5.7 Availability
The availability of the OptiX Metro 100 is 99.999%.
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A Glossary1
19-inch cabinet A cabinet which is19 inches in width and 600mm in depth, compliant with thestandards of the IEC297.
A
add/dropmultiplexer
A multiplexer capable of extracting and inserting lower-rate signals from ahigher-rate multiplexed signal without completely demultiplexing the signal.
ADM add/drop multiplexer.
administrator A user who has authority to access all the Management Domains of the
EMLCore product. He has access to the whole network and to all themanagement functionalities.
AIS Alarm Indication Signal. A signal sent downstream in a digital network if anupstream failure has been detected and persists for a certain time.
asynchronous A network where transmission system payloads are not synchronized and eachnetwork terminal runs on its own clock.
attenuation Reduction of signal magnitude or signal loss, usually expressed in decibels.
auto-negotiation The rate/work mode of the communication party set as self-negotiation isspecified through negotiation according to the transmission rate of the oppositeparty.
availability The foundation for many Bellcore reliability criteria is an end-to-end two-wayavailability of objective of 99.98% for interoffice applications (0.02% unavailabilityor 105 minutes/year down time). The objective for loop transport between thecentral office and the customer premises is 99.99%. For interoffice transport, theobjective refers to a two-way broadband channel, e.g. SONET OC-N, over a250-mile path. For loop applications, the objective refers to a two-waynarrowband channel, e.g. DS0 or equivalent.
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B
BIP BIP-X code is defined as a method of error monitoring. With even?parity an X-bitcode is generated by the transmitting equipment over a specified portion of thesignal in such a manner that the first bit of the code provides even parity over the
first bit of all X-bit sequences in the covered portion of the signal, the second bitprovides even parity over the second bit of all X-bit sequences within thespecified portion, etc. Even parity is generated by setting the BIP-X bits so thatthere is an even number of 1s in each monitored partition of the signal. Amonitored partition comprises all bits which are in the same bit position within theX-bit sequences in the covered portion of the signal. The covered portionincludes the BIP-X.
BITS Building Integrated Timing Supply. A building timing supply that minimises thenumber of synchronisation links entering an office. Sometimes referred to as asynchronisation supply unit.
C
chain network One type of network that all network nodes are connected one after one to be inseries.
channel The smallest subdivision of a circuit that provides a type of communicationservice; usually a path with only one direction.
client A kind of terminal (PC or workstation) connected to a network that can sendinstructions to a server and get results through a user interface. See also server.
clock tracing The method to keep the time on each node being synchronized with a clocksource in a network.
D
DCN Data Communication Network. A communication network within a TMN orbetween TMNs which supports the data communication function (DCF).
DDF Digital Distribution Frame. A frame which is used to transfer cables.
domain The domain of the T2000 specifies the scope of address or functions which areavailable to a certain user.
E
ECC Embedded Control Channel. An ECC provides a logical operations channelbetween SDH NEs, utilizing a data communications channel (DCC) as itsphysical layer.
ESD Electrostatic Discharge. The phenomena the energy being produced byelectrostatic resource discharge instantly.
ETSI European Telecommunications Standards Institute.
extended ID The serial number of a subnet where an NE resides, which is usually used todistinguish different network segments in a WAN. An extended ID and an ID form
the physical ID of an NE.
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F
frame A cyclic set of consecutive time slots in which the relative position of each time
slot can be identified.
H
hardwareloopback
A method to use a fiber to connect the receiving optical interface with thetransmitting one on a board. It performs transmission tests, which methodusually does not require the assistance of personnel at the served terminal.
I
IP over DCC The IP Over DCC follows TCP/IP telecommunications standards and controlsthe remote NEs through the Internet. The IP Over DCC means that the IP overDCC uses overhead DCC byte (the default is D1-D3) for communication.
J
jitter tolerance For STS-N electrical interfaces, input jitter tolerance is the maximum amplitudeof sinusoidal jitter at a given jitter frequency, which results in no more than twoerrored seconds cumulative, when the signal is modulated at an equipment inputport. These errored seconds are integrated over successive 30 secondmeasurement intervals. Requirements on input jitter tolerance as just stated, arespecified in terms of compliance with a jitter mask, which represents acombination of points. Each point corresponds to a minimum amplitude ofsinusoidal jitter at a given jitter frequency which results in two or fewer erroredseconds in a 30 second measurement interval when the signal is modulated atthe equipment input port. For the OC-N optical interface, it is defined as theamplitude of the peak-to-peak sinusoidal jitter applied at the input of an OC-Ninterface that causes a 1 dB power penalty.
jitter Short waveform variations caused by vibration, voltage fluctuations, controlsystem instability, etc.
L
link A "topological component" that provides transport capacity between twoendpoints in different subnetworks via a fixed (i.e., inflexible routing) relationship.The endpoints are "subnetwork termination point pools" for SONET, and linktermination points for ATM. Multiple links may exist between a pair ofsubnetworks. A link also represents a set of "link connections".
loopback The fault of each path on the optical fibre can be located by setting loopback foreach path of the line. There are three kinds of loopback modes: No loopback,Outloop, Inloop.
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M
MAC Media Access Control. The data link sublayer that is responsible for transferringdata to and from the Physical Layer.
mapping A procedure by which tributaries are adapted into virtual containers at theboundary of an SDH network.
MSP The MSP function provides capability for switching a signal between andincluding two MST functions, from a working to a protection channel.
multiplexer An equipment which combines a number of tributary channels onto a fewernumber of aggregate bearer channels, the relationship between the tributary andaggregate channels being fixed.
N
NE explorer NE Explorer is the main operation interface of the T2000. For easy navigation,the NE Explorer window presents an expandable directory tree (Function Tree)in the lower left pane. The configuration, management and maintenance of theequipment are accessed here.
O
ODF Optical Distribution Frame. A frame which is used to transfer and spool fibers.
P
pass-through The action of transmitting by a node exactly what is received by that node for anygiven direction of transmission. A pass-through can be unidirectional orbidirectional. For BLSRs, a pass-through refers to the K1 and the K2 bytes andthe protection channels. Three types of pass-throughs are used in BLSRs: Kbyte passthrough, unidirectional full pass-through, and bidirectional fullpass-through.
PDH Plesiochronous Digital Hierarchy. PDH is the digital networking hierarchy thatwas used before the advent of Sonet/SDH.
SSDH Synchronous Digital Hierarchy. A hierarchical set of digital transport structures,
standardized for the transport of suitably adapted payloads over physicaltransmission networks.
self-healing Establishment of a replacement connection by network without the NMCfunction. When a connection failure occurs the replacement connection is foundby the network elements and rerouted depending on network resources availableat that time.
SFP small form-factor pluggable.
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SSM Synchronization Status Message. ITU-T defines S1 byte to transmit the networksynchronization status information. It uses the lower four bits of the multiplexsection overhead S1 byte to indicate 16 types of synchronization quality grades.
subnet mask Also referred to as the network mask off code. It is used to define network
segments, so that only the computers in the same network segment cancommunicate with one another, thus suppressing broadcast storm betweendifferent network segments.
subnet The logical entity in the transmission network and comprises a group of networkmanagement objects. A subnet can contain NEs and other subnets. A subnetplanning can enhance the organization of a network view.
synchronous A network where transmission system payloads are synchronized to a master(network) clock and traced to a reference clock.
UUAT Unavailable Time. A UAT event is reported when the monitored object generates
10 consecutive severely errored seconds (SES) and the SESs begin to beincluded in the unavailable time. The event will end when the bit error ratio persecond is better than 10-3 within 10 consecutive seconds.
W
WTR time A period of time that must elapse before afrom a fault recoveredtrail/connection can be used again to transport the normal traffic signal and/or toselect the normal traffic signal from.
WTR Wait to Restore. This command is issued when working channels meet therestoral threshold after an SD or SF condition. It is used to maintain the stateduring the WTR period unless it is pre-empted by a higher priority bridge request.
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B Acronyms and AbbreviationsA
ADM add/drop multiplexer
AIS Alarm Indication Signal
APS Automatic Protection Switch(ing)
B
BER Bit Error Ratio
BIP Bit-Interleaved Parity
BITS Building Integrated Timing Supply System
C
CRC Cyclic Redundancy Code
D
DCC Data Communication Channel
DCN Data Communication NetworkDDF Digital Distribution Frame
E
ECC Embedded Control Channel
ESD electrostatic discharge
ETSI European Telecommunications Standards Institute
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G
GUI Graphic User Interface
I
IEEE Institute of Electrical and Electronics Engineers
ISDN Integrated Services Digital Network
ITU-T International Telecommunication Union - Telecommunication StandardizationSector
L
LCDLiquid Crystal Display
LCT Local Craft Terminal
M
MSP Multiplex Section Protection
O
ODF Optical Distribution Frame
OSI open systems interconnection
P
PDH Plesiochronous Digital Hierarchy
S
SDH Synchronous Digital Hierarchy
SFP Small Form-Factor Pluggable
SNCP Sub-Network Connection Protection
SSM Synchronization Status Message
W
WTR Wait-to-Restore