9125 tc - inclusiv tcif descr
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Alcatel-Lucent GSM
9125 TC Description
BSC & TC Document
Sub-System Description
Release B11
3BK 21629 AAAA TQZZA Ed.01P07
Status IN PREPARATION
Short title 9125 TC Description
All rights reserved. Passing on and copying of this document, useand communication of its contents not permitted without writtenauthorization from Alcatel-Lucent.
BLANK PAGE BREAK
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Contents
Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1 Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81.2 Functional Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2.1 Basic Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91.2.2 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111.2.3 Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.2.4 Module Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131.2.5 TC Cluster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151.2.6 TC NEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.3 Telecom Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.3.1 Speech Service Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161.3.2 Data Service Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.4 O&M Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.4.1 Software Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171.4.2 Configuration Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181.4.3 Fault Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201.4.4 Control Functions Position Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2 Functional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272.1 MT120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
2.1.1 MT120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282.1.2 MT120 WB/NB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.2 JBTCIF STM-1 Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302.2.1 Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302.2.2 JATC4S1 - STM1 Daughter Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
2.3 FANU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
3 TC Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.2 Multiple BSC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.2.1 Rack Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383.2.2 Multiple BSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3.3 Rack filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393.4 New Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403.5 Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.5.1 9125 TC Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413.5.2 G2 TC Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4 TC Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 434.1 JRTC Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.1.1 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 444.1.2 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
4.2 JSTRU Subrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464.2.1 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 464.2.2 Electrical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.3 JSTC Subrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484.3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 484.3.2 JPTC Back Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 494.3.3 Physical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
4.4 JSTCIF Subrack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514.4.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514.4.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514.4.3 Back Plane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.5 MT120 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
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Contents
4.5.1 Board Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534.5.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 534.5.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 544.5.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 554.5.5 Font Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.6 MT120 WB/NB Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564.6.1 Board Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564.6.2 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 564.6.3 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 574.6.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 584.6.5 Front Panel Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4.7 JBTCIF Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594.7.1 Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 594.7.2 Board Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604.7.3 Front Plate Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 604.7.4 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 614.7.5 JATC4S1 - STM1 Daughter Board Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624.7.6 SFP Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
4.8 FANU Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.8.1 Appearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.8.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 644.8.3 Fan Blower Operational Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
4.9 TC Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.9.1 Internal Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664.9.2 External Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 694.9.3 Cable Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
4.10 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764.10.1 Climatic and Mechanic Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764.10.2 EMC Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764.10.3 Safety Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764.10.4 Other Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
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Preface
Preface
Purpose This document gives an overview of the 9125 TC and describes the functions,functional units, configurations and hardware.
The Alcatel-Lucent Radio Solutions include the 9125 TC described in thisdocument.
Note that, depending on the system configuration, you may not have access toall the functions described in this document.
Document Pertinence This document applies to operational BSS from Release B11.
What’s New In Edition 01First official release of document for B11.
Audience This document is intended for:
Commissioning personnel
System support engineers
Operating personnel
Trainers
Any other personnel interested in the functions of the 9125 TC.
Assumed Knowledge You must have general knowledge of telecommunication systems, terminologyand GSM functions.
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Preface
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1 Functions
1 Functions
This section provides general information about the 9125 TC.
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1 Functions
1.1 OverviewThe 9125 TC provides:
Communication between the BSC and the MSC (encoded traffic)
Data-rate adaptation
Submultiplexing on the Ater interface.
The figure below shows the location of the 9125 TC within the PLMN.
OMC−R
Abis
Gb
AAbisAtermux Atermux
SGSN
MSCBTS BSC
MFS
A9125TC
Figure 1: Location of 9125 TC within PLMN
A single 9125 TC can support a number of BSCs. The TC recognizes BSCracks. It deduces these from the BSC identifier and the Atermux numbersupplied by the operator. Each BSC rack is connected to a group of up to sixMT120 boards. This grouping is referred to as a ’cluster’.
The 9125 TC is connected to the other network elements of the PLMN via thefollowing interfaces:
The Atermux interface either directly to the BSC or via the MFS
The A interface to the MSC
The X.21 interface to the OMC-R
In some configurations, the Gb interface between the SGSN and the MFS
pass through the TC.
The 9125 TC is normally located at the MSC site.
For more information about the 9125 TC, refer to the following documents:
BSC/TC Overall Description
9125 Transcoder NEM User Guide
BSS Preventive Maintenance Handbook.
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1 Functions
1.2 Functional Architecture
1.2.1 Basic Architecture
The 9125 TC can have three functional units.
The MT120 is the main functional unit. It provides the multirate transcodingfor up to 120 channels. This board has interfaces for one Atermux trunk
towards the BSC and up to four A trunks towards the MSC. There areMT120 WB or MT120 NB, depending on the Adaptive Multi-Rate Wideband
(AMR WB) and Adaptive Multi-Rate Narrowband (AMR NB) codec types.
The 9125 TC STM-1 module is in charge of terminating the STM-1link, extracting and forwarding the E1 from STM-1, and ensuring O&M
supervision and software management of the MT120 boards. The 9125 TCSTM-1 boards are in a 1+1 configuration whereby, one carries traffic and the
other one is in hot standby. On the hot standby board, all interfaces arepermanently supervised. STM-1 is a 155 Mbit/s interface, included in the
SDH family (STM-4, STM-16, STM-64). E1 is transported in VC12 tributary.
STM-1 contains 63 VC12. One TC supports a maximum of four STM-1.
The FANU board provides cooling for the MT120 and 9125 TC STM-1
boards in the rack.
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1 Functions
The following figure shows the basic architecture of the 9125 TC.
Figure 2: 9125 TC Basic Architecture
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1 Functions
Transcoder board
MT120
Transcoder board
MT120
TCIF board
TCIF board
1+1 interface board
48 transcoding boards
TDM on STM −1 VC12
IP on Ethernet
High speed links (HSI)
2
2
Clock bus (not used)
Ethern et
SDH Update port
fans
fan bus
2
TCIL (not used)
Figure 3: 9125 TC with 9125 TC STM-1 Board
1.2.2 Interfaces
1.2.2.1 External InterfacesAtermux Interface
The 9125 TC is connected to the BSC or MFS via the Atermux interface. Inthe case of a connection to the MFS, the Atermux interface may also conveythe Gb interface. If packet channels are present in the Atermux interface,they go transparently through the TC.
This is Time Division Multiplexing (TDM), whereby:
The channels either:
Are added/dropped in the MT120 (only true for 64 kbit/s channels), or
Go transparently through the MT120 (e.g. SS7, OMC-R, X.25 or Gb
interface).
The 8 and 16 kbit/s HR, FR, EFR and AMR traffic channels conveyed on the
16 kbit/s bearer channels are processed in the MT120
Submultiplexing 4:1 but only TS0 transparency configurations is supported.
A Interface
The 9125 TC is connected to the MSC via the A interface. This is TDM.
O&M Interface
The BSC performs the O&M access via the Qmux bus, compatible with the G2TC. This access is used for configuration and supervision of the TC board.
There is a 1+1 Qmux connection, operating in active/standby mode, per cluster(see Figure 5) in the 9125 TC rack. These two Qmux connections are carriedon two 16 kbit/s channels conveyed by the first two Atermux links.
This is an interface to the IP network.
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1 Functions
X.21 Interface
This interface is managed by the MT120 board and supports X.25 channelsused to interconnect the BSC with the OMC-R. One 64 kbits/s channel isextracted from any Atermux interface and is transparently routed to the X.21interface.
Interface to the IP network
Gigabit Ethernet 1000 Base-T is used for the IP interface. The 9125 TC STM-1includes a SNMP agent which is managed by the OMC-R.
TDM interfaces
For the TDM interface, the choice is:
E1 physical linesThe E1 physical interface is located on the MT120 boards.
E1 via STM-1/VC12The SDH interface is located on a plug-onboard. To minimize the number ofSTM-1 links to be connected, each E1 link can be mapped to any VC12tributary on any STM-1 link (arbitrary mapping).
1.2.2.2 Internal InterfacesTC Internal Link (TCIL)
The TCIL is a duplicated bus that connects all the MT120 boards of the rack.The TCIL bus is involved in the following functions:
Forwarding the configuration information from the BSC to the other MT120boards
Downloading the software from the TC NEM
Sending alarm information to the BSC via the MT120 board with a Qmuxconnection
Communicating temperature measurements, power alarms and BSC
related information.
High Speed Link (HSI)
The transcoder boards are connected to 9125 TC STM-1 boards via high-speedlinks (HSI). Each TC board is connected to each 9125 TC STM-1 board (dualstar). The high-speed links carry TDM, TRAU, O&M and signaling traffic.
O&M Link
A link between the 9125 TC STM-1 boards carries O&M, protection forexternal interfaces. This link is realized using standard ATCA interfaces,i.e. Ethernet, update port.
Clock Bus
The clock is not used.
External IP Links
External IP links are connected to the 9125 TC STM-1 boards.
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1 Functions
1.2.3 Compatibility
The MT120 board is compatible with the G2 TC equipment practice andinterfaces. One MT120 board is equivalent to 13 boards in the G2 TC: 1ASMC + 4 ATBX + 8 DT16.
Four A−interface trunksG.703
Three
mult
iplex
ed A
termu
x−int
erfac
e trun
ks
ace t
r
unks
Atermux itf trunkG.703
MT120
TC G2 9125 TC
SU
4 TRCUs
FourA−interface
trunksG.703
ASMC DT 16
ATBX
ASMC DT 16
ATBX
ASMC DT 16
ATBX
G.7
03
4 TRCUs
4 TRCUs
Figure 4: Evolution from G2 TC to 9125 TC
1.2.4 Module Addressing
1.2.4.1 Qmux AddressingTo reduce the impact on the BSC software, the MT120s in each clusterrespond to the addresses of the equivalent ASMCs and ATBXs which wouldbe equipped in a G2 TC.
For the 9125 TC STM-1, the Qmux is forwarded by the 9125 TC STM-1 boardto MT120 board. The Qmux is hardcoded on TS14 Nibble 0.
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1.2.4.2 TCIL AddressingThe MT120 uses a simplified LAPD protocol for the TCIL bus. The MT120addressing on the TCIL bus is based on the TEI value. This MT120 TEIvalue is derived from the physical location of the MT120 and is unique inthe 9125 TC rack.
The TEI value for broadcast messages in the TCIL bus is 255.
Each MT120 stores the information of all the other MT120s in a correspondencetable. This is done as follows.
Periodically and after each MT120 power on, the MT120 sends a broadcastmessage on the TCIL bus. This message contains the following information:
MT120 TEI
Measured temperature
Fan alarms
Power supply alarms
Unique information received from the TC NEM:
BSC number
BSC identity
Atermux number.
The other MT120s store this information in their correspondence table. Thistable is used for some O&M functions (e.g. fan supervision).
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1.2.5 TC Cluster
A TC cluster is a group of up to six MT120 boards allocated to one BSC rack.
These boards are only masters in respect to the Qmux interface. They have
no other dedicated role in the rack.
The other MT120 boards of the cluster are attached to the masters during
installation phase.
The members of a cluster can be any MT120 board in the rack. Thissimplifies extension and reduction.
MT120
BSC rack
MT120
BSC rack
MT120
BSC rack
MT120
BSC rack
MT120
BSC rack
MT120
BSC rack
CLUSTER 1
CLUSTER 2
TCIL
CLUSTER 8
Atermux interfaceFigure 5: TC Cluster
Seen from the BSC, a cluster is a logical G2 TC rack, a group of six Atermuxinterfaces. The BSC supervises the related cluster and communicates withthe master. The master forwards the messages received from the BSC to theother MT120 boards in the cluster via the TCIL bus.
The two MT120 boards configured as the masters need to know the relationbetween the Qmux address of the MT120s in the cluster and the TEI.
Since any MT120 can be connected to the TC NEM, each MT120 maintains atable containing this relation for all the installed MT120 boards. This table isalso called the correspondence table.
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1.2.6 TC NEM
The TC NEM is a Personal Computer loaded with the TC NEM software andconnected to the 9125 TC via an:
RS232 link, when 9125 TC is equipped with MT120
Ethernet link, when 9125 TC is equipped with an MT120WB/NB and STM-1
subrack.In the case of a 9125 TC equipped with a STM-1 subrack, the TC NEM canbe connected remotely or locally through Ethernet link.
1.3 Telecom FunctionsThis section describes the telecom functions of the 9125 TC, which comprisespeech and data service functions.
1.3.1 Speech Service Functions
The 9125 TC provides the following speech service functions:
Speech encoding and decoding for:
Adaptive Multirate
Enhanced Full Rate
Full Rate
Half Rate.
PCM A-law or [micro ]-law configurable
Tandem free operation
Static audio level adjustment in uplink and downlink independentlyconfigurable. Range of adjustment is -6dB to +6dB in steps of 1dB.
Framing and synchronization of the vocoder blocks
Adjustment of the phase of the blocks in the downlink direction for minimum
delay
Discontinuous Transmission. This contains the Voice Activity Detection and
the comfort noise measurement in the downlink direction. In the uplinkdirection, it contains the comfort noise insertion and speech extrapolation.
1.3.2 Data Service Functions
Data Service Functions
Data-rate adaptation for V.110 formats with intermediate rates of 8 kbit/s or16 kbit/s.
Framing and synchronization of the data blocks.
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1.4 O&M FunctionsThe O&M functions of the 9125 TC include software, configuration and faultmanagement functions which may be locally or remotely controlled.
1.4.1 Software Management
1.4.1.1 9125 TC STM-1 Software ManagementThe 9125 TC STM-1 software is not replaced through the BSS softwarereplacement. It is downloaded and managed from the TC NEM.
The states handled by the TC NEM are not part of the BSS softwarereplacement. They are:
Idle = No software replacement ongoing
Downloading = Download ongoing
Downloaded = Download completed
Activating = Activate ongoing
Activated = Activate completed
Rejecting = Reject ongoing
Aborting = Abort ongoing.
The set of scenarios to be provided for the 9125 TC STM-1 softwarereplacement are not part of the BSS software replacement. All the actions areinitialised from the TC NEM:
Software download
Software activate
Software accept
Software reject
Software abort.
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1.4.1.2 MT120 Software ManagementFor the MT120 boards, the software management is done by the TC NEM.
The O&M actions of this service supported by the TC NEM and the TCsubsystem for the download management of the MT120 software for theQMUX MT120 are as follows:
Software download
Software abort
Software activate
Software accept/reject.
The actions requested by the operator are performed through the TC NEMTC rack by TC rack. However, at the operator interface, a global action on allTC racks or on selected TC racks is provided and the TC NEM launches theactions in parallel. The result to the operator is given TC rack by TC rack. The9125 TC STM-1 can hold, at any one moment, four different MT120 softwareversions at any one time.
1.4.1.3 Central Software DownloadAll the software for all the MT120 boards of an 9125 TC rack is downloadedfrom a central point.
The MT120 board has the memory capacity to store three software versions:
The first version (V0) is the production version. V0 is stored in a protectedarea of the flash EPROM memory.
The two other versions (V1 and V2) are stored onsite by the preload
mechanism in a non-protected area of the flash memory. V1 is the runningversion and V2 is the previous version.
The MT120 uses the following software versions:
V0 at first installation or when V1 and V2 are corrupted
V1 after a correct preload and activation
V2 when V1 is corrupted.
1.4.2 Configuration Management
1.4.2.1 Clock ManagementDepending on the clock selection:
Without STM-1, any MT120 has a priority. The clock is taken from the
highest priority MT120.
With STM-1, the clock is taken from STM-1 or from physical E1. STM-1 has
priority. The 9125 TC STM-1 selects and distributes the clock.
1.4.2.2 TC Rack Information ManagementIn the case of a 9125 TC STM-1, the impedance has a rack granularitycompared to 9125 TC.
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1.4.2.3 Remote InventoryRemote inventory contains manufacturing data (e.g. the production date andserial number of the MT120) and maintenance information. Information aboutthe rack and fans are stored in the MT120 and are available via the TC NEM.
The MT120 remote inventory is stored in a dedicated EPROM, whereas therack and fan remote inventory is stored in the flash memory of each MT120.
1.4.2.4 MT120 Configuration ManagementFor each TC rack, the operator configures the E1 impedance parameterthroughout the TC NEM.
For each BSC, the TC is associated with a TC NEM. It configures the followingparameters:
BSC number (to be valued with BSC Node ID for IP preparation)
BSC-ID
Atermux ID
Loudness (DL & UL)
DSP allocation law (random or linear)
TRAU law (A-law/µ-law)
Qmux config.
For all this data, the reference is the TC. The TC NEM gives values for theseparameters to the 9125 TC STM-1 through SNMP management. This data isstocked in the internal 9125 TC STM-1 database. After the SNMP SET, the9125 TC STM-1 passes this data to MT120 board(s) via the HSI and where it isupdated in the internal database. The values from the internal database areprovided during the next interrogation of these parameters from the TC NEM orthe OMC (the SNMP managers).
1.4.2.5 9125 TC STM-1 Configuration ManagementFor each TC rack, the operator configures the following parameters throughoutthe TC NEM:
Rack number
Active 9125 TC STM-1 IP address and ports
9125 TC STM-1 1 IP address and ports
9125 TC STM-1 2 IP address and ports
TC remote inventory including 9125 TC STM-1.
For this data, the TC is the reference. The TC NEM gives values for theseparameters to the 9125 TC STM-1 through the SNMP management. This datais stocked in the internal 9125 TC STM-1 database.
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1.4.2.6 STM-1 Configuration ManagementThe STM-1 configuration (logical E1 to VC12 mapping) is only performed fromthe TC NEM. The configuration granularity is the MT120. On the MT120, theflexibility on the Ater interface and A interface is supported; that is, the A/Aterinterface independence is supported. The operator prepares the configurationin a first operation, downloads it in the TC in a second step and applies thisconfiguration later, in a third operation. During the preparation phase, the TCNEM operator uses a ’working’ STM-1 configuration file. The TC NEM operatorcan also check the validity of the working file.
In addition, the operator can get the impact of the working file configuration incase it is applied through a Compare command that produces a configurationimpact file. This file contains all E1 links with a change:
If the E1 link is changed from physical to SDH: the SDH tributary
If the E1 link is changed from SDH to physical
If the SDH tributary changes.
SNMP messages are used between the TC NEM and 9125 TC STM-1 board.The current STM-1 configuration and the candidate STM-1 configuration arestored in the TC MIB, accessible through the SNMP.
The STM-1 configuration can be defined as:
’current’
’candidate’
’working’.
The 9125 TC STM-1 only knows ’candidate’ and ’current’ STM-1 configurations.The TC NEM displays the ’candidate’ and the ’current’ configurations, but alsooffers/manages ’working’ files for the configuration update (these ’working’ filesare local to the TC NEM). A ’working’ STM-1 configuration file becomes the’candidate’ configuration as soon as it is successfully downloaded on the9125 TC STM-1 (on the ’Set Configuration’ operator trigger). The ’candidate’STM-1 configuration becomes the ’current’ STM-1 configuration as soon asit is successfully applied in the 9125 TC STM-1.
1.4.3 Fault Management
1.4.3.1 Alarm Octet ManagementThe alarm octet is a specific timeslot of the Atermux interface used to reporttransmission alarms. This feature is implemented in the G2 TC but not in the9125 TC. This results in a different behaviour of the MT120 compared to the G2TC, in the case of an A interface failure:
In the G2 TC, one alarm is reported (on ATR SBL) and the corresponding
channels are blocked in the BSC
In the MT120, one alarm is reported (on ATR SBL) and the correspondingchannels are blocked in the MSC.
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1.4.3.2 Fault SupervisionMT120 Failure
MT120 power onDuring the power on, the configuration data and the alarms are not lost bythe MT120. It performs the same actions as during the reset command.
MT120 out of order stateIn the out of order state, the MT120 supervision and alarm sending doesnot stop. If the failure leading to the out of order state disappears, theMT120 becomes operational.
MT120 temperature handlingThe MT120 temperature is a permanent measurement. If thetemperature goes below the corresponding threshold-hystheresis and theMT120_autoreset_count < max value, the MT120 returns the previous state,and depending on the case, sends the alarms OFF to 9125 TC STM-1 andthe corresponding channels become available for traffic. In order to avoidthe ping-pong effect for temperature handling, channel blocking / unblockingis limited in time.
MT120_autorestart_countThe MT120_autorestart_count is a counter used by the MT120 to triggeran MT120 autoreset instead of an MT120 autorestart when this countervalue reaches its maximum value. The counter is incremented after eachMT120 autorestart (successful autorestart or not), and is used only during awindow. When the autorestart window timer expires, the MT120 re-initialisesthe MT120_autorestart_count to 0 and restarts another window.
MT120_autoreset_countThe MT120_autoreset_count is a counter used by the MT120 to stopthe MT120 indefinitely, performing an autoreset which blocks the MT120supervision (i.e. no alarms can be sent). The counter is incremented aftereach MT120 autoreset (successful autorestart or not), and is used onlyduring a window. When the autoreset window timer expires, the MT120re-initialises the MT120_autoreset_count to 0 and restarts another window.
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9125 TC STM-1 Board Failure
9125 TC STM-1 hardware failures
The 9125 TC STM-1 board contains the following hardware equipment:
SS7 processors
STM-1 daughter board
TCIP daughter board
Ethernet switch.
If there are problems related to any of the hardware equipment, an alarm israised and reported through the SNMP management. The alarm containsadditional information about the hardware device that failed.
9125 TC STM-1 software failures9125 TC STM-1 software is organized in software building blocks. Eachblock has specific tasks to handle. Depending on the usage of the moduleand the gravity of the problem encountered, this software failure can triggera 9125 TC STM-1 reset.
STM-1 failuresThe 9125 TC STM-1 board detects the STM-1 VC12 failures when physicalE1 failures are detected by the MT120.
Mate 9125 TC STM-1 reachability failureThe communication with the other 9125 TC STM-1 is impossible. This couldbe due to internal cabling problems or to the fact that the other 9125 TCSTM-1 board is dead or unplugged.
Router connection failureThe 9125 TC STM-1 is connected to an external router that enables it tocommunicate with the external IP network. If the connection with this routeris lost, then the board can no longer fulfill its functionalities as a IP networkelement and must trigger an autoreset.
TCIF_autoreset_count _HW and TCIF_autoreset_count _SWThe 9125 TC STM-1 autoreset counters are used by 9125 TC STM-1 inorder to stop the 9125 TC STM-1 indefinitely performing an autoreset whichblocks the TC supervision (i.e. no alarms can be sent).
MT120 reachabilityThe communication between the 9125 TC STM-1 and the MT120 is donethrough the HSI interface. Each 9125 TC STM-1 is connected to eachMT120 board.
There are two potential levels of loss of communication:
Loss of communication with one 9125 TC STM-1
Loss of communication with both 9125 TC STM-1.
For the loss of communication with one 9125 TC STM-1, there aretwo possible cases:
Communication was lost to ACTIVE 9125 TC STM-1
Communication was lost to STANDBY 9125 TC STM-1.
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Environmental Failures
Power supply supervisionThe power supply for the 9125 TC is redundant. When the power supplyfails, all MT120 in 9125 TC will detect it. In order to reduce the number ofalarms sent to 9125 TC STM-1, only the active or inactive Qmux masterMT120 with lowest Atermux number for each BSC number reports thepower supply alarm to 9125 TC STM-1.
Fan supervision
In the 9125 TC, there are six fans per sub-rack and for each fan, onlythe MT120 of the same sub-rack as the fan can access its alarms viathe following rule:
Each MT120 with even number (2, 4,..., 12) has access to the threefans in the back panel
Each MT120 with odd number (1, 3,...,11) has access to the three
fans in the front panel.
When the MT120 detects a fan alarm, it sends it with aTC_FAUKT_INDICATION to the 9125 TC STM-1. In order to reduce thenumber of fans alarms sent to the 9125 TC STM-1, only the active orinactive Qmux master MT120 with the lowest Atermux number for each BSCnumber reports the fan alarms of the complete rack to 9125 TC STM-1.
Fan speed control
In order to reduce the noise generated by fans at high speed, the fan speedis controlled in the 9125 TC. Each MT120 controls the fan of the samesub-rack with the following rule:
Each MT120 with even number (2, 4,..., 12) controls the three fans
in the back panel
Each MT120 with odd number (1, 3,...,11) controls the three fans in the
front panel.
All fans in the rack must have the same speed. Each MT120 reports itstemperature to the 9125 TC STM-1. 9125 TC STM-1 calculates the highesttemperature from these messages and calculates the proper fan speed,which is then broadcast to all MT120 boards via HSI. If this broadcastmessage is not received by a MT120 (e.g. HSI failure), this MT120 uses themaximum speed as the reference for the FAN speed control.
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1.4.3.3 Fault RecoveryMT120 Recovery
MT120 autorestartThis autorestart must not impact the telecom of the MT120 (no interruptionof traffic). During the autorestart, the configuration data and the alarms arenot lost by MT120.
MT120 autoresetThis autoreset must not impact the telecom of the MT120 (no interruptionof traffic). During the autoreset, the configuration data and the alarmsare not lost by the MT120.
9125 TC STM-1 Fault Recovery
9125 TC STM-1 autoresetThe 9125 TC STM-1 autoreset can be triggered from software or hardwareinternal malfunctions. It is triggered from the 9125 TC STM-1 OBC. Duringthe 9125 TC STM-1 autoreset, the configuration data and the alarms arenot lost, because this data is kept on both 9125 TC STM-1 boards, asthey are in hot standby.
9125 TC STM-1 takeover and ACTIVE/STANDBY election principles:
The following criteria for the 9125 TC STM-1 takeover apply:
Failure (hardware/software) on the ACTIVE 9125 TC STM-1 board
MT120 reachability criteria: the 9125 TC STM-1 with the highest numberof MT210 connectivity available is the ACTIVE one
Software replacement: during the software replacement, the two boardswill change their status at least once
Ping-pong avoidance: as it is necessary to avoid as much as possible
performing multiple takeovers, several counters are defined to limit the
number of takeovers. If the number of MT120 reachable is higher onone board but this board has a larger number of failures, the takeover
is inhibited.
1.4.3.4 Fault ReportingThe following rules apply for Fault Reporting:
MT120 fault reportingThe MT120 sends its alarms (and fan alarms for the MT120 with lowestAtermux number). The power supply for 9125 TC is redundant. When thepower supply fails, all MT120 will detect it. Concerning the report of powersupply alarm to TC NEM, each MT120 reports the detected power supplyalarm. The power supply alarm must then be filtered in the 9125 TC STM-1.
9125 TC STM-1 fault reporting9125 TC STM-1 alarm reporting is done through the SNMP management.The active alarm table contains a list of all the active alarms that areknown by the 9125 TC STM-1. This active alarm table is mirrored on both9125 TC STM-1.
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1.4.4 Control Functions Position Classification
1.4.4.1 Local FunctionsThe following functions are locally performed via the TC NEM:
Software download and activation
Configuration of some parameters (e.g. Qmux position)
Board status and alarms report
Display and modification of remote inventory and site data
Restart/reset command.
All these functions are centralized. When the TC NEM is connected to oneboard, local functions can be performed on any board of the same rack.
1.4.4.2 Remote FunctionsThe following functions are performed remotely through the Qmux link:
Configuration of some parameters (e.g. loudness)
Alarm reports (failures, temperature, ...).
1.4.4.3 Autonomous FunctionsSome O&M functions are performed autonomously by the MT120 board withany trigger from the TC NEM or via the Qmux link:
Supervision of A and Atermux PCM links
Autorestart/autoreset
Temperature control and fan management
LED management
Recovery.
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2 Functional Units
This section describes the division of the 9125 TC into functional units.
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2.1 MT120
2.1.1 MT120
The MT120 board includes the transmission and processing functions tosupport 120 channels.
HSI
Qmux logic64k Add/Drop
OBCController
Synchro
A interfaces
HSI 1 and 2
Atermux interfaces
12
X.21−64K
RI
0 & M Bus
MMI RS 232Led 1 & 2
DC/DC
G70
3
Fan alarms
DSP DSP
Figure 6: MT120 Functional Blocks
The MT120 has the following functional blocks:
12 DSPs. These devices allow multi-codec and multi-channel
implementation. The DSPs are capable of handling HR, FR, EFR and AMR.
OBC. It implements the O&M functions.
G.703. This device provides the A and Atermux interfaces. The impedance
can be 75 or 120 Ohms, selectable via software.
Qmux Logic and 64k Add/Drop device
Onboard DC/DC converter
Synchronization.
Each MT120 board synchronizes itself on one of the following referenceclocks:
One of the two HSI interface clocks
The extracted clock of one of the four A interfaces
The local oscillator.
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2.1.2 MT120 WB/NB
The MT120 WB/NB board includes the transmission and processing functionsto support 120 channels.
PowerModule
A Links
Atermux
E1 Debug
ETH
MTI
X21
TCIL
HSI
QLI
QRI, QEI, QTI
HDMI
Fans Controland Supervision
− 48V
FansModule
E1 PCM Module Interface
RoutingModule
OBC Module DSP Module
Rack/subrackConfigurationSignals
1
2
1
1
2
3
4
1
1
1
1
Figure 7: MT120 WB/NB Functional Blocks
The MT120 WB/NB has the following functional blocks:
OBC module
DSP module
PCM module
Interface Routing module
Power Supply module
Fan Control module.
The MT120 WB/NB provides the following interfaces:
External interfaces:
Six E1 interfaces
One Atermux
Four A links and a PCM debug
X21 interfaces
Duplicated - 48 V sources.
Internal interfaces:
Two duplicated TCIL Buses used for inter-MT120 WB/NB communicationin the 9125 TC
One QLI Bus used to manage the Qmux in the 9125 TC and G2 TC
One QEI, QRI, QTI used to manage the Qmux in the G2 TC and 9125TC (QRI only in G2 TC)
Two duplicated HSI links used in the 9125 TC
Subrack configuration signals
One Fan control/supervision interface.
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Terminal and debug interfaces:
One MMI RS232 link used for control/supervision
One MTI RS232 link used for debug
One 10/100 Mbit/s Ethernet interface used for debug
One PCM debug interface
One HDMI interface for DSP#0 debug.
2.2 JBTCIF STM-1 Board
2.2.1 Architecture
The following figure shows the JBTCIF architecture and main functional entities.
Power Supply
Reset Module
EthernetSwitch
SS7Signaling
Controllers
BSS IPTransport
Termination
TDM−Switch16 & 64 Kbit / s
and
HSI Interface
4 x STM1Daughter Board
(Optional)
OBCModule
IPMC
TDM
TDM
TDM
TDM
TDM
RG
MII
RGMII
Local Bus
PCI Bus
2 x RGMII
RS−232
RS−232
Remote IPMC
2 x 1000 BaseT 1000 Base−X
Base Interface Inter−TCIF
48VDC A / B
IPMB A / B
4 x STM1 Protection LinesUpdate Channels HSI Interface
Figure 8: JBTCIF Architecture
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2.2.1.1 Onboard ControllerThe OBC is based on the MPC8560 processor (also called the Host processor)and its associated memories. It provides the control part of the JBTCIFand also performs the HDLC terminations of the O&M communication withthe MT120 boards.
2.2.1.2 Signalling ControllersThese parts are identical and also based on the MPC8560 processor. Theyhave to terminate the MTP2 layer of the SS7 stack on the A interface. Accordingto the software architecture retained for the SS7 to Sigtran conversion, thesignaling messages are relayed to the Host processor through the PCI bus ortreated locally.
2.2.1.3 TDM Switch and HSI Link TerminationIn order to manage the MT120 transcoder boards by pooling (TDM pool or IPpool), there is a centralized TDM cross connect on the TCIF. It is implementedin the JGHSI FPGA and provides a 16kbps synchronous switch on the Atermuxside and a 64kbps synchronous switch on the A side. The TDM switch isalso connected to the HDLC controllers embedded in the Host processorfor terminating the O&M communication channels and to the two SignalingControllers for the MTP2 protocol termination.
The 48 transcoder boards are connected to TCIF boards via high speed links(HSI). Each TC board is connected to each TCIF board according to a dualstar topology. The high speed links carry TDM, TRAU packets, O&M andsignaling traffic. Each HSI interface includes one RX link and one TX link at49.152MHz (i.e. 24 x 2048MHz).
2.2.1.4 BSS IP Transport Processing ModuleThis module supports the TRAU IP packet multiplexing/de-multiplexing function,time alignment and traffic shaping.
2.2.1.5 STM1 Daughter BoardThe TCIF board can support an optional a 4 STM1/VC12 daughter board with aproprietary form factor. The architecture of the STM1 board is mainly based onthe Agere HyperMapper device, associated with one SFP cage, which allowsthe reception of four optical transceivers.
2.2.1.6 Ethernet Switch ModuleBased on the single-chip sixteen-port Gigabit switch, this module interconnectsthe:
Ethernet ports of the OBC
IP Transport termination
Two Signaling Controllers
One port for mirroring with the backplane Base Interfaces.
2.2.1.7 IPMC ModuleThe IPMC module supports the IPMB interface for the hardware managementof the TCIF when hosted in a standard ATCA subrack. When the TCIF boardis housed in the new subrack defined for the 9125 TC subsystem, the IPMCmodule is configured to work in a standalone mode and mainly manage thepower up/down sequence of the board. It also provides access to the FRUdata inventory and some sensors.
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2.2.1.8 Reset ModuleThe reset module provides the reset logic of the TCIF board.
2.2.1.9 Power Supply ModuleThe power supply module provides all the necessary onboard power supplyfrom the dual 48V feeds.
2.2.1.10 Fan Supervision and ControlThe module:
Provides the power supply to the two fan units of the JSTCIF subrack
Receives speed information from the two fan units.
2.2.2 JATC4S1 - STM1 Daughter Board
The following figure shows the STM1 Daughter Board architecture.
PLL
Hypermapper
RI
TemperatureSensor
OC3Transceiver
I2C Bus
I2C Bus(IPMC)
OC3Transceiver
OC3Transceiver
OC3Transceiver
Protection Links
FPGAConfiguration
STM1−SYNC−OUT
Local Bus
TDM
STM1−SYNC−IN (8KHz)
CLK1−A (8KHz)
CLK1−B (8KHz)
CLK2−A (19.44MHz)
CLK2−B (19.44MHz)
Clock
Selection
FPGA
Figure 9: JATC4S1 Architecture
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The JATC4S1 mezzanine card provides the following functions:
4 SFP transceiver interfacing
4 STM1 termination
APS function
VC12 mapping
Four x 63 E1 termination
Recovered clock selection and cleanup
Reference clock selection
Clock distribution
TDM interfacing
252x252 E1 cross-connect
Loop back facilities
Local bus interface
Power supply
Transceiver digital diagnostics
Remote Inventory
Temperature sensor
Reset
JTAG.
2.2.2.1 Transceiver InterfacingThe STM1 physical interfaces of the JATC4S1 mezzanine card is done via a 1x4SFP ganged cage compliant with the SFP Multi-Source Agreement standard.Only single mode, short-haul SFP transceiver applications are foreseen,although the hardware can accept all SFP modules compliant with the standard.
2.2.2.2 Time BaseReference clock selection:
The clock circuit receives:
Four 19.44 MHz clocks issued from STM1 received lines 1 to 4
One 19.44 MHz clock issued from the ATCA clock bus
One 8 kHz clock issued from the ATCA clock bus
One 8 kHz clock issued from the PDH reference.
The selected clock is the highest priority available clock.
Clock distribution:
The clock synthesizer generates and distributes all the frequencies needed tothe Hypermapper, from the selected reference. It provides one 8 kHz clock andone 19.44 MHz clock towards the ATCA clock bus, through the JGTC4S1.
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2.2.2.3 E1 Mapping in 4 STM1The Hypermapper completely assumes STM1 termination, VC12 mapping,E1 termination, and frame slip functions. To give the flexibility to affect anyE1 anywhere in any STM1 frame, the JGTC4S1 FPGA includes a 252x252E1 cross-connect. The TDM interfacing between the Hypermapper and theJGTC4S1 is made through the CHI interface running at 8192 kHz in bytemultiplexing mode (18 wires per STM1). The TDM interfacing between theJATC4S1 mezzanine card and the JBTCIF mother board is done throughthe HTDM interface running at 32768 kHz, to reduce the pin count in bytemultiplexing mode.
2.2.2.4 APS FunctionAutomatic Protection Switching (APS) is used to avoid the loss of a STM-1 linkin the case of a physical link (or termination) failure.
There are four such circuits on the JBTCIF/TP, one per STM-1 link. The APSdecision is independent for each STM-1 link.
Two JBTCIF boards are interconnected for a quad STM-1 MSP 1 + 1 protectionsolution. One Hypermapper device on the JATC4S1 is used to interface with x 4STM-1 working lines while the other device on the second JATC4S1 mezzaninecard is used as an interface for the protection lines associated with the fourworking STM-1s. The protection links are routed between the two JBTCIF inthe backplane through the update channels.
Figure 10: APS Architecture
2.2.2.5 Loop Back FacilitiesBoth the Hypermapper and JGTC4S1 FPGA have loop back facilities fortest purposes.
2.2.2.6 Local Bus AdaptationOnly the JGTC4S1 is connected to the local bus of the mother board. Itperforms the adaptation between the local bus and the processor interfaceof the Hypermapper. It gathers all the interrupts.
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2.2.2.7 Power SupplyThe JATC4S1 mezzanine card receives +5 V, +3.3 V, +2.5 V and IPMIpermanent +3.3V from the mother board. The 1.5 V and 1.2 V needed for corepower supply of the Hypermapper and the JGTC4S1 FPGA are generatedlocally from the +5 V.
2.2.2.8 Board PresenceA pull down indicates the JATC4S1 presence to the mother board.
2.2.2.9 I2C Host BusAn I2C standard link connected to the host processor of the mother board allowsthe monitoring of the optical transceivers (if the functionality is implemented onthe SFP module). The remote inventory EEPROM is also connected to this link.
2.2.2.10 IPMC BusA temperature sensor with I2C interface is connected to the IPMC of the motherboard. It is supplied by a specific +3.3V coming from the mother board.
2.2.2.11 ResetThe JATC4S1 can be reset by the mother board through the reset input.
2.2.2.12 JTAGJATC4S1 mezzanine board has a JTAG interface for programming and test.Two chains are available (a short chain for ISPPAC programming and a longchain for boundary scan tests).
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2.3 FANUThe 9125 TC is equipped with a forced-air cooling system. Each subrackhas three fan units (FANUs), situated below the MT120 boards. Each FANUcontains two fan blowers, controlled by the MT120 board.
Possibility of OverheatingDo not insert the FANUs if there are no MT120s in the same subrack to providethem with power, otherwise they will restrict the airflow.
Ensure that:
The MT120s with even number are connected to the three fans in the
back panel
The MT120s with odd number are connected to the three fans in the frontpanel
FANU FANU FANU
Figure 11: Position of FANUs in Subrack
To extend the life of the fans and to keep the noise level to a minimum,the speed of the fans is adjustable. Each MT120 board is equipped with atemperature sensor. The MT120 measures its temperature and provides powerand digital speed control for the FANUs. This enables the temperature insidethe rack to be regulated more precisely.
Each of the MT120 boards controls the FANU of the same subrack. For coolingefficiency, however, all the FANUs of the rack must have the same speed. EachMT120 broadcasts the measured temperature to all other MT120 and thespeed depends on the highest measured temperature.
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3 TC Configurations
This section describes the TC configurations.
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3 TC Configurations
3.1 IntroductionThe 9125 TC can be used for:
New BSSs
Extensions of G2 TCs, possibly with mixing of 9125 TCs and G2 TCs
G2 TC replacement. In this case, one 9125 TC rack can replace severalG2 TC racks.
The 9125 TC can be equipped with up to 48 MT120 boards. Each MT120 offersan Atermux connection to a BSC and up to four A trunk connections to theMSC. The 9125 TC rack has up to 192 A trunk connections to the MSC.
For Qmux continuity, all DTCs of a 9120 BSC rack must be connected to thesame 9125 TC rack. The same principle is used for the 9130 BSC Evolutionwhere each group of six Atermux interfaces must be connected at the sameTC rack. For redundancy purposes, a BSC must be connected to an 9125TC via a minimum of two Atermux connections.
3.2 Multiple BSC Connection
3.2.1 Rack Sharing
The 9125 TC rack is shared between several BSCs. Any MT120 board in anyslot of any subrack can be allocated to any BSC. These BSCs can belong toseveral OMC-Rs. This is a static allocation; the MT120 board is attached tothe BSC at installation time.
3.2.2 Multiple BSC
The 9125 TC can serve up to 24 BSCs, possibly controlled by differentOMC-Rs. In the example figure below, the TC (2) serves four BSCs, controlledby two OMC-Rs. The BSC (4) is connected to two TCs, with the restriction thatone BSC rack must be connected to the same TC rack.
Figure 12: Example of Multiple BSC Connection
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3.3 Rack fillingTheoretically, it is possible to put any MT120 board in any slot in the foursubracks. However, depending on the cable entry (from the top or from thebottom), the rack is filled differently onsite.
The rack is filled:
Positioning:
Always from left to right
From bottom to top, when bottom cable entry is used
From top to bottom, when top cable entry is used.
The filling granularity is one MT120 board, with a minimum of two boardsper occupied shelf. These must be in odd and even numbered slots to
power both sets of fans.
The BSC to MT120 connection information is only available via the TC NEM.
Bottom cable entry
TRU TRU
FANU
Top cable entry
FANU FANU
FANUFANUFANU
FANU FANU FANU
FANU FANU FANU
FANU FANU FANU
FANUFANUFANU
FANU FANU FANU
FANU FANU FANU
Figure 13: 9125 TC Rack Filling
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3.4 New InstallationsThe 9125 TC offers full flexibility in terms of network dimensioning andconfigurations with multiple BSCs, including the following:
Up to 24 BSC racks can be connected to the same 9125 TC rack
The 9125 TC rack can be managed by several OMC-Rs
Each BSC rack must be connected to the same 9125 TC rack. For example,
a BSC with configuration 4 (two racks) can be split between 2 TC racks.
The figure below shows the simplest configuration (one TC rack connected toseveral BSCs).
BSC 1
Rack
1
Rack
2
BSC 2
Rack
1
Rack
2
A9125TC
Rack
MSC
Figure 14: Example of New 9125 TC Rack Installation
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3.5 Extensions
3.5.1 9125 TC Extension
The extension of a BSC can require an additional 9125 TC rack. The figurebelow shows an extension of BSC 2 from configuration 4 (two racks) toconfiguration 6 (three racks). This requires a new 9125 TC rack if the first oneis completely filled.
BSC 1
Rack
1
Rack
2
BSC 2
Rack
1
Rack
2
A9125TC
Rack
MSC
A9125TC
Rack
Rack
3
Figure 15: Example of 9125 TC Rack Extension
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3.5.2 G2 TC Extension
Once the G2 TC rack has reached its maximum capacity of six Atermux, anyfurther BSC extension will require a new 9125 TC rack. This additional rackcan be shared between different BSC extensions.
In the figure below, the first rack of BSC 1 is connected to a G2 TC rack, whichis extended with MT120 boards. A new 9125 TC rack is shared betweenthe extensions of BSC 1 (from one rack to two racks) and BSC 2 (from tworacks to three racks).
BSC 1
Rack
1
Rack
2
BSC 2
Rack
3
Rack
2
A9125TC
Rack
MSC
A9125TC
Rack
Rack
1
G2TC
Rack
MT120
DT16
Figure 16: Example of G2 TC Rack Extension
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4 TC Hardware
This section provides a description of the hardware elements of the 9125 TC.
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4.1 JRTC Rack
4.1.1 Physical Description
The 9125 TC equipment is housed in a single rack called a JRTC.
This rack consists of:
One JSTRU top rack unit for secondary power supply distribution andprotection inside the rack.
Four identical JSTC subracks, containing up to twelve MT120 boards and
up to three fan units. A fifth subrack is optional.
The internal cabling between the four JSTC subracks
A 100 mm plate for cooling air inlet and cable access
The top and bottom plates and the front doors are perforated to provide
sufficient air flow inside the rack.
JSTRU
JSTC
JSTC
JSTC
JSTC
2U
7U
7U
7U
7U
19"
40U
1U
JSTCIF
2U
4U
3U
Figure 17: JRTC Rack - Front View
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Front Rear
200 mm90 mm
JSTC
JSTC
IFFigure 18: JRTC Rack - Top View
4.1.2 Technical Data
Power Supply -48/ -60 V DC
Power Consumption 50 W for each equipped Atermux interface trunk(max 2500 W for the full configuration)
Rack Dimensions Height: 2000 mm
Width: 600 mm
Depth: 600 mm
Weight 250 kg (including 10 kg cables)
Maximum number of A interfaces 192
Maximum number of Atermux interfaces 48
Maximum number of BSCs 24
Interfaces E1
Transmission impedance 75 or 120 Ohms (controlled by software)
Access Front and rear
Cable access Top or bottom
Rack numbering 1 to 15
Shelf numbering 1 to 4 (top to bottom)
Slot numbering 1 to 12 (left to right)
Table 1: Technical data of the 9125 TC Rack
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4.2 JSTRU Subrack
4.2.1 Physical Description
The mechanical housing of the JSTRU subrack unit is made of zinc chromatepassivated sheet mild steel.
The JSTRU contains two identical back planes:
One for each distribution branch, allowing independent maintenance oneach branch
Each back plane holds up to five plugable 20 A circuit breakers. Thestandard equipment is four circuit breakers, one for each JSTC subrack.
The fifth circuit breaker is used for the JSTCIF subrack if the STM1 feature
is selected.
The numbering of the circuit breakers is indicated on the JSTRU mechanical
housing.
Additional covers, not shown on the figure below, are added for personnelprotection against hazardous energy levels.
Figure 19: JSTRU Mechanical Housing
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4.2.2 Electrical Description
The JSTRU subrack unit performs the secondary power supply distribution andprotection inside the rack. The JSTRU:
Receives the duplicated secondary power supply from the rack powersupply input terminals after proper EMC filtering
Distributes the duplicated secondary power supply to the four JSTC
subracks and to the JSTCIF subrack
Protects the energy distribution against potential overload inside the other
subracks
Contains 20 A circuit breakers for each subrack, allowing at least adissipation of 720 W.
BATRET BATA or BATB
JSTC JSTC JSTC JSTC
JSTRU
20A 20A 20A 20A 20A
JSTCIF
Figure 20: JSTRU Electrical Diagram
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4.3 JSTC Subrack
4.3.1 General
The JSTC is the main subrack of the 9125 TC.
There are four identical JSTC subracks, each of them holding two types ofplugable item:
MT120Up to 12 MT120 boards can be inserted in one JSTC subrack. Thehardware RIT name of the MT120 is JBMTE.
FANUUp to 3 fan units can be inserted in one JSTC subrack.
7U
19"
FANU
MT120
MT120
MT120
MT120
MT120
MT120
MT120
MT120
MT120
MT120
MT120
MT120
FANU FANU
Figure 21: JSTC Front View
Front
MT120
FANU
Rear
JPTC back plane
Cables
1U
6U
Figure 22: JSTC Side View
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4T
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ardware
4.3.2JP
TC
Back
Plan
e
The
JPT
Cback
planeprovides:
On
thefrontside,the
connectorsfor
theM
T120
andFA
NU
boards
Allthe
internalsubrackconnections
between
theM
T120s
andthe
FAN
Us
On
therear
side,theconnectors
forthe
inter-subrackand
externalcables.
Fan006
MT120 lower connector
002
MT120 lower connector
005
MT120 lower connector
008MT120 lower connector
011
Fan020
MT120 lower connector
016
MT120 lower connector
019
MT120 lower connector
022
MT120 lower connector
025
Fan034
MT120 lower connector
030
MT120 lower connector
033
MT120 lower connector
036
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connector
MT120 upper connectorMT120 lower connector
039
Figure
23:JP
TC
Back
Plane
-Front
View
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4.3.3 Physical Description
The mechanical housing of the JSTC subrack unit is made of zinc chromatepassivated sheet mild steel. The guides for the MT120 boards and the FANUsare made of plastic.
To provide good air flow between the MT120 boards, each FANU is horizontallyaligned with a group of four MT120 boards.
As a result, the space between the MT120 boards is as follows:
30.48 mm between MT120 boards of the same group
50.8 mm between MT120 boards of different groups.
FANU Guide
MT120 Guide
Figure 24: JSTC Mechanical Housing
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4.4 JSTCIF Subrack
4.4.1 General
The JSTCIF is used in the 9125 TC if the STM1 option is selected.
One JSTCIF is used in the TC and its hosts:
Two JBTCIF boards
Two FANU
Back plane.
The JSTCIF is a standard 19” compatible rack. This sub rack contains twoJBTCIF for redundancy (1+1).
The JBTCIF uses the ATCA board format and ATCA connectors.
Pluggable FANU fan units achieve temperature cooling. As each JBTCIF candissipate up to 150W, two fan units are used. Both Fan cassettes are poweredand controlled by the two JBTCIF. The air flow direction is from the right to leftside of the JSTCIF.
FANU−1
FANU−0
Filler
Filler
JBTCIF _0
JBTCIF _0
Filler / HSI connector on rear side
Figure 25: JSTCIF Front View
4.4.2 Dimensions
The following table gives the dimensions of the JSTCIF subrack.
Width 19”
Height 178 mm
Depth 350 mm
Table 2: JSTCIF Dimensions
4.4.3 Back Plane
The back plane assumes the housing of two TCIF boards and theinterconnection with the 48 JBMTE boards on the 9125 TC rack. Theinterconnection between one JBMTE and one TCIF is made by a point-to-pointlink.
In the back plane, cables for HSI links between TCIF and JBMTE handle theconnections whereas they are done via the layout for the other signals (FANbus, power supply, clocks resynchronization).
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The following figures show the JSTCIF back plane front and rear views.
Figure 26: JSTCIF Back Plane Front View
Figure 27: JSTCIF Back Plane Rear View
The JSTCIF back plane provides the following connectors:
Back plane front side connectors:
ATCA
FANU.
Back plane rear side connectors:
Power Supply
Ethernet
IPMB.
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The following figure shows the backplane functional architecture.
Figure 28: Backplane Functional Architecture
4.5 MT120 Hardware
4.5.1 Board Dimensions
Height Depth
233.4 mm 280 mm
Table 3: MT120 Dimensions
4.5.2 Power Supply
The MT120 board operates from a duplicated -48 V power supply and has anonboard DC/DC converter.
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4.5.3 Front Panel
The following figure shows the front panel of the MT120.
BoardExtractor
BoardExtractor
LED 1
LED 5
LED 6
LED 7
LED 8
LED 2LED 3LED 4
USB
MMI
MTI
A Itf link 1A Itf link 2A Itf link 3A Itf link 4
Atermux Itf link
Power Supply
Traffic Indication
Fault Status
(Not used)
Figure 29: MT120 Front Panel
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4.5.4 LEDs
LED Nbr OFF Blinking ON
1 to 5 PCM LinkDisconnected(LOS Alarmdetected)
Failure detectedon the link. (AIS,LFA, BER 10 -3 ,LMFA)
PCM Linkconnected withoutfailure
6 Power supply OFF Not used Power supply ON
7 No traffic Not used Traffic
8 No alarm Non urgent alarm Urgent alarm
Table 4: MT120 LEDs in Operational State
4.5.5 Font Panel Connectors
Connector Name Connector Type
USB 4 pins USB Series "B"
MMI (RS-232) 9 pins SUB-D9 Female
MTI (RS-232) 9 pins SUB-D9 Female
Table 5: MT120 Front Panel Connectors
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4.6 MT120 WB/NB Hardware
4.6.1 Board Dimensions
Height Depth
233.4 mm 280 mm
Table 6: MT120 WB/NB Dimensions
4.6.2 Power Supply
The MT120 WB/NB Power Supply Module provides the following functions:
- 48 V duplicated distribution
- 48 V presence on each branch (A/B)
- 48 V filtering
- 48 V current limiter
- 48 V overvoltage protection
DC/DC conversion from - 48 V to 3.3 V, 1.8 V, 1.25 V, 1 V
Power sequencing.
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4.6.3 Front Panel
The following figure shows the front panel of the MT120 WB/NB.
A1
A2
A3
A4
Ater
Power
Traffic
Fault
ETH
HDMI
MTI
Board Extractor
Board Extractor
Figure 30: MT120 WB/NB Front Panel
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4.6.4 LEDs
LED OFF Blinking ON
A1 to A4,Atermux
PCM LinkDisconnected(LOS Alarmdetected)
Failure detectedon the link. (AIS,LFA, BER 10 -3 ,LMFA)
PCM Linkconnected withoutfailure
Power Power supply OFF Not used Power supply ON
Traffic No traffic Not used Traffic
Fault No alarm Non urgent alarm Urgent alarm
Table 7: MT120 WB/NB LEDs in Operational State
4.6.5 Front Panel Connectors
Connector Name Connector Type
ETH 10/100 Mbit/s Ethernet interface
HDMI Debug interface for DSP0
MTI (RS-232) 9 pins SUB-D9 Female
Table 8: MT120 WB/NB Front Panel Connectors
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4.7 JBTCIF Hardware
4.7.1 Front Panel
The following figure shows the JBTCIF front plate.
Figure 31: JBTCIF Front Plate
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4.7.2 Board Dimensions
The following table gives the board dimensions.
Width [mm] Depth [mm]
29 305
Table 9: JBTCIF Dimensions
4.7.3 Front Plate Connectors
The following table describes the JBTCIF connectors.
Connector Description
RS DEBUG Serial debug ports
Three serial debug ports are available via a RJ45connector on the front plate : one for the Hostprocessor, one for the Signaling processor #1 (or theSignaling processor #2, the selection is performedby the Host) and one for the IPMC.
ETH DEBUG Debug Ethernet port
There is a 10Base-T/100Base-TX RJ45 connectoron the JBTCIF board face plate for debugging theHost processor.
MIRRORING Ethernet mirroring port
There is a 10/100/1000 Base-T RJ45 connector onthe front plate connected to the internal switch.
Table 10: JBTCIF Connectors
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4.7.4 LEDs
The following table describes the JBTCIF LEDs.
LED Color Description
H/S Blue Hot Swap
OFF: Board is active
During board installation:
Blinking blue: Board communicates with the Shelf Management controller.
OFF: Board activation in progress
During board removal:
Blinking blue: Blade notifies the its desire to deactivate.
Permanently blue: Board is ready to be extracted.
OOS Red/Amber Out Of Service, provides the status to indicate operational failure ofPayload resources
ON: Board is out of service
OFF: Board is operational
IP Green IP Health, provides the status to indicate the health of the IP BSS transporttermination.
ON: IP Health is OK
OFF: IP Health is not OK
ACT Active/Standby, provides the Active/Standby status of the JBTCIF board.
ON: Board is active
OFF: Board is standby
FAN ALA Red Fan Alarm, provides the status of the fan alarm.
ON: Fan alarm
OFF: No fan alarm
Link Amber Provides the Ethernet link status for Base0, Base1, Mate0 and Mate1interfaces.
ON: Link up
OFF: Link down
Activity Green Provides the Ethernet activity status for Base0, Base1, Mate0 and Mate1interfaces.
ON: Activity
OFF: No activity
0, 1, 2, 3 Green General purpose LEDs.
Table 11: JBTCIF LEDs
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4.7.5 JATC4S1 - STM1 Daughter Board Hardware
The following figure shows the JATC4S1 - STM1 daughter board architecture.
Figure 32: JATC4S1 - STM1 Daughter Board Hardware Architecture
JATC4S main components are:
Hypermapper
FPGA
SFP modules
Remote Inventory EEPROM
DC/DC concerter.
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4.7.6 SFP Modules
The following figure shows the SFP modules layout.
The fiber optic transceivers provide a quick and reliable interface for short haulapplications. The transceivers connect to standard 20-pin SFP connectors forhot plug capability.
The transceivers have colored bail-type latches, which offer an easy andconvenient way to release the modules.
The transmitter incorporates a highly reliable laser and a driver circuit. Thereceiver features a transimpedance amplifier optimized for high sensitivity andwide dynamic range. The transmitter and receiver data interfaces are ACcoupled internally. LV TTL Transmitter Disable and Loss of Signal outputinterfaces are also provided.
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4.8 FANU HardwareThe FANU consists of a moulded-plastic frame for mounting the two fanblowers. The fan blowers are manufactured from fiberglass reinforced plastic.They are fixed in the moulded-plastic frame with a simple snap-in mechanism.
The FANUs are inserted in guide rails, at the bottom of the subrack, and lockedin position with a latch. The electrical connection is achieved with a connector,fitted to the rear of the FANU, which plugs into the subrack backplane.
4.8.1 Appearance
The following figure shows the FANU.
Blowers
Latch
Handle
Power Connector
Guide RailsFigure 33: FANU
4.8.2 Dimensions
Dimension Size (TEP) Size (mm)
Height: 1 HU 44 mm
Width: 26 WU 133 mm
Depth: - 298 mm
Table 12: FANU Dimensions
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4.8.3 Fan Blower Operational Parameters
Parameter Description
Type: PAPST 4318/2, version 113
Max. air flow: 170 m 3 /h
Acoustic noise: < 45 dB
Operating voltage: 20 VDC to 40 VDC
Table 13: Fan Blower Unit Operating Parameters
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4.9 TC Cabling
4.9.1 Internal Cabling
4.9.1.1 Power Supply CablesThe JRTC rack has two redundant power line inputs (BAT A and BAT B). Thebattery return (BAT RET) is common to both distribution branches.
When entering the EMC Rack enclosure, the power supply is filtered to meetthe EMC standard for conductive emission. The BAT A, BAT B and BAT RETsignals are individually filtered.
The rack has the following internal power distribution cables:
Three power cables from the EMC filters to the JSTRU
Two ALBAC cables from the JSTRU to each JSTC subrack (eight cables
in total) and two ALBAC cables from the JSTRU to the JSTCIF subrack(additional two cables), if the STM1 option is used. An ALBAC cable is a
dual conductor cable with a T fast-on connector at both ends.
Rack EMCenclosure
BAT RET BAT ABAT B
16 mm ² blue
JSTC
JSTC
JSTC
JSTC
BAT Adistribution
BAT Bdistribution
ALBACcables
16 mm ² black
16 mm ² blue
JSTRU
JSTCIF
Figure 34: Power Supply - Rear View
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4.9.1.2 JLTCIL CablesThe TCIL is a duplicated communication bus connecting all MT120 boards ofthe rack. The connection between the subracks is made by the JLTCIL cables.In addition, the TCIL bus must be terminated at both ends. This is done withthe JLTCT termination plugs in the top and bottom subracks.
The JLTCIL and JLTCT are plugged on DIN 41612 series R male connectorslocated at the rear of the JSTC subracks.
JSTC
JSTC
JSTC
JSTC
TopSubrack
BottomSubrack
JLTCT − Termination plugs
JLTCT − Termination plugs
JLTCIL cables
DIN 41612connector
Figure 35: JLTCIL Cables - Rear View
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4.9.1.3 HSI CablesWhen a JSTCIF subrack is used, it is connected to each JSTC subrack bythree HSI cables.
A HSI is a point-to-point interface. It is composed of four pairs of signals, threepairs of which are used to exchange serial data between JBMTE2 and JBTCIF,while the remaining pair is used to give to JBTCIF the line reference timing.
All high-speed links are cabled to the backside of the interface sub rack byusing SCSI-3 34 pair cables. Each TCIF board manages the four pairs for 48boards, for a point to point HSI interface in a JSTC subrack. This results in2 x 192 pairs for the complete cabinet. As SCSI-3 34 pair cables are used,there are 12 connectors for the JSTCIF subrack.
The selected connector for HSI interconnections is an Amplimite 68-pin femaleconnector.
JSTC
JSTC
JSTC
JSTC
JSTCIF
HSI Cables
HSI Cables
TopSubrack
BottomSubrack
Figure 36: HSI Cables - Rear View
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4.9.2 External Cabling
4.9.2.1 Power SupplyThe secondary power feeding cables are connected to the rack using M6studs with nuts and washers:
BAT A
BAT B
BATRET
Rack protective ground terminal.
The duplicated secondary power supply distribution of the four subracks isconfigured for a 3-wire connection. In the case of a 2-wire connection, a strapposition must be changed to connect the BATRET to the rack protective ground.
RackProtective
Ground
Optional Strap
BATB BATRET BATA
Figure 37: Power Supply Connection Terminals
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4.9.2.2 External Cables for E1 and X.21 PortsThe external E1 ports are used for the A and Atermux interface connections.These ports connect directly on the IDCs located on the JSTC subrack backplane. The external X.21 ports are used for signalling connect on sub-minD-15 connectors.
041 039 036 033 030 025 022 019 016 011 008 005 002 001
038
037
032
031
028
027
024
023
018
017
014
013
010
009
004
003
PowerSupply
E1 po
rts (A
)
HSI p
orts
X.21
HSI p
orts
HSI p
orts
E1 po
rts (A
)
E1 po
rts (A
termu
x)
E1 po
rts (A
)
E1 po
rts (A
)
E1 po
rts (A
)
E1 po
rts (A
)
TCIL
bus
E1 po
rts (A
termu
x)
PowerSupply
X.21
X.21
X.21
X.21 X.21 X.21
X.21 X.21 X.21
X.21
X.21
Figure 38: JSTC Subrack Back Plane - Rear View
The 9125 TC is connected to the Alcatel-Lucent DDF with multipair cables(eight pairs per cable).
The cable type depends on the impedance:
L907 type for 120 Ohms
FLEX3 type for 75 Ohms.
The 9125 TC is cabled on a subrack basis. There is one PCM cable for transmitand one for receive.
Additional cabling for capacity extension is possible without traffic interruption.
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4.9.2.3 External Cables for STM1 and O&M LinkThe external STM1 ports are used for the A and Atermux interface connections.These ports are directly connected on the JBTCIF boards located on theJSTCIP subrack. The JBTCIF boards support a maximum of four STM1 links.
The external Ethernet O&M ports are used for signalling and are connected onRJ45 connectors located on the JSTCIP backpanel rear side.
The 9125 TC using the STM1 option is connected to the Alcatel-Lucent ODFwith multifiber cables (six fibers per cable).
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4.9.3 Cable Routing
The figures below show the cable routing inside the JRTC rack for both bottomand top cable entry. The cables are secured on transverse metal rods, whichare not shown in the figures.
JSTC
JSTC
JSTC
JSTC
T fast−onID
DIN 41612
Front Rear
EMC shield
EMC protectedcable entry
Internal cables
Secondarypower supplydistribution
Secondarypower supplyEMC filters
EMC protectedcable entry
External PCM and X.21 cables
Secondarypower supply
JSTRU
Figure 39: JRTC Side View - Bottom Cable Entry
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JSTC
JSTC
JSTC
JSTC
T fast−onIDC
SCSI 3
Front Rear
EMC shield
EMC protectedcable entry
HSIInternal cables
Secondarypower supplydistribution
Secondarypower supplyEMC filters
EMC protectedcable entry
External STM1 and Ethernet O&M cables
Secondarypower supply
JSTRU
JSTCIF
Figure 40: JRTC Side View - Bottom Cable Entry with STM1
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JSTC
JSTC
JSTC
JSTC
T fast−onID
DIN 41612
Front Rear
EMC protectedcable entry
Internal cables
Secondarypower supplydistribution
Secondarypower supplyEMC filters
EMC protectedcable entry
External PCM and X.21 cablesSecondarypower supply
JSTRU
Figure 41: JRTC Side View - Top Cable Entry
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JSTC
JSTC
JSTC
JSTC
T fast−onIDC
SCSI3
Front Rear
EMC protectedcable entry
HSIInternal cables
Secondarypower supplydistribution
Secondarypower supplyEMC filters
EMC protectedcable entry
External STM1 and Ethernet O&M cablesSecondarypower supply
JSTRU
JSTCIF
Figure 42: JRTC Side View - Top Cable Entry with STM1
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4.10 Environmental Conditions
4.10.1 Climatic and Mechanic Conditions
The 9125 TC is compliant with the following requirements:
For storage: ETS 300 019-1-1 class 1.1
ETS 300 019-1-1 class 1.1
Conditions are valid for non-packed equipment (rack)
Icing and frosting is not allowed.
For transport: ETS 300 019-1-2 class 2.3
For operation: ETS 300 019-1-3 class 3.1. Heat and solar radiation are
not allowed.
Seismic conditions: ETS 300 019-2-3 Amendment 1 June 1997.
4.10.2 EMC Conditions
The 9125 TC is compliant with the following requirements:
Emission Conduction Class A: Radiation Class A. Harmonized standard
(EC) EN 300386-2 (1997)
Immunity: EN 300386-2 (1997) Including ESD, radiated immunity, fast
transients, surges, radio frequency conducted immunity.
CE marking
Emission and immunity: Directive 89/336/ECC: amendments 92/31/EEC
and 93/68/EEC.
4.10.3 Safety Conditions
The 9125 TC is compliant with the following requirements:
EN 60950 Ed 2 (1992) and amendments 1 to 4
CE marking
Low voltage: Directive 73/23/EC, amendment 93/68/EEC.
4.10.4 Other Conditions
The 9125 TC is compliant with the following requirements:
DC Power Supply: ETS 300132-2 (9/96)
Installation: Grounding of the equipment units of the Telecom centers:
ETS 300253 (01/95)
Acoustic: ETS 300753 (1997-10). Equipment Engineering (EE); Acousticnoise emitted by telecommunications equipment.
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