9125 TC - Inclusiv TCIF Descr

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

2 / 76 IN PREPARATION 3BK 21629 AAAA TQZZA Ed.01P07

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


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.


Preface


1 Functions

1 Functions

This section provides general information about the 9125 TC.


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.


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.


1 Functions

The following figure shows the basic architecture of the 9125 TC.

Figure 2: 9125 TC Basic Architecture


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.


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.


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.


1 Functions

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).


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions

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.


1 Functions


2 Functional Units

2 Functional Units

This section describes the division of the 9125 TC into functional units.


2 Functional Units

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.


2 Functional Units

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.


2 Functional Units

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


2 Functional Units

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.


2 Functional Units

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


2 Functional Units

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.


2 Functional Units

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.


2 Functional Units

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).


2 Functional Units

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.


3 TC Configurations

3 TC Configurations

This section describes the TC configurations.


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


3 TC Configurations

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


3 TC Configurations

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


3 TC Configurations

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


3 TC Configurations

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


4 TC Hardware

4 TC Hardware

This section provides a description of the hardware elements of the 9125 TC.


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

4.2 JSTRU Subrack


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


4 TC Hardware

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


4 TC Hardware

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


4T

CH

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


005


008MT120 lower connector

011

Fan020


016


019


022


025

Fan034


030


033


036

MT120 upper connector











MT120 upper connectorMT120 lower connector

039

Figure

23:JP

TC

Back

Plane

-Front

View

3BK

21629A

AA

AT

QZ

ZA

Ed.01P

07IN

PR

EPA

RAT

ION

49/

76

4 TC Hardware


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


4 TC Hardware

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).


4 TC Hardware

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.


4 TC Hardware

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.


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

4.6 MT120 WB/NB Hardware


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.


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

4.7 JBTCIF Hardware

4.7.1 Front Panel

The following figure shows the JBTCIF front plate.

Figure 31: JBTCIF Front Plate


4 TC Hardware


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


4 TC Hardware

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


4 TC Hardware

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.


4 TC Hardware

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.


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

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


4 TC Hardware

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.


4 TC Hardware

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).


4 TC Hardware

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


External PCM and X.21 cables

Secondarypower supply

JSTRU

Figure 39: JRTC Side View - Bottom Cable Entry


4 TC Hardware

JSTC

JSTC

JSTC

JSTC

T fast−onIDC

SCSI 3

Front Rear

EMC shield


HSIInternal cables




External STM1 and Ethernet O&M cables

Secondarypower supply

JSTRU

JSTCIF

Figure 40: JRTC Side View - Bottom Cable Entry with STM1


4 TC Hardware

JSTC

JSTC

JSTC

JSTC

T fast−onID

DIN 41612

Front Rear


Internal cables




External PCM and X.21 cablesSecondarypower supply

JSTRU

Figure 41: JRTC Side View - Top Cable Entry


4 TC Hardware

JSTC

JSTC

JSTC

JSTC

T fast−onIDC

SCSI3

Front Rear


HSIInternal cables




External STM1 and Ethernet O&M cablesSecondarypower supply

JSTRU

JSTCIF

Figure 42: JRTC Side View - Top Cable Entry with STM1


4 TC Hardware

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


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


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


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.


9125 TC - Inclusiv TCIF Descr

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