Nortel Networks Circuit Card User Manual

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Nortel Communication Server 1000

Nortel Communication Server 1000 Release 4.5

Circuit Card

Description and Installation

Document Number: 553-3001-211 Document Release: Standard 3.00 Date: August 2005

Year Publish FCC TM

Produced in Canada

Information is subject to change without notice. Nortel Networks reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.

Nortel, Nortel (Logo), the Globemark, This is the Way, This is Nortel (Design mark), SL-1, Meridian 1, and Succession are trademarks of Nortel Networks.

Page 3 of 906

Revision history

August 2005

Standard 3.00. This document is up-issued to support Communication Server 1000 Release 4.5.

September 2004

Standard 2.00. This document is up-issued for Communication Server 1000 Release 4.0.

October 2003

Standard 1.00. This document is a new NTP for Succession 3.0. It was created to support a restructuring of the Documentation Library, which resulted in the merging of multiple legacy NTPs. This new document consolidates information previously contained in the following legacy documents, now retired:

• Line Cards: Description (553-3001-105)

• Trunk Cards: Description (553-3001-106)

• Serial Data Interface Cards: Description (553-3001-107)

• NT7D16 Data Access Card: Description and operation (553-3001-191)

• Multi-purpose Serial Data Link: Description (553-3001-195)

• Circuit Cards: Installation and Testing (553-3001-211)

• Option 11C and 11C mini Technical Reference Guide (553-3011-100) (Content from Option 11C and 11C mini Technical Reference Guide (553-3011-100) also appears in Telephones and Consoles: Description, Installation, and Operation (553-3001-367).)

• Circuit Card Reference (553-3023-211)

Circuit Card Description and Installation

Page 4 of 906 Revision history

553-3001-211 Standard 3.00 August 2005

Page 5 of 906

LIst of procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 19

About this document . . . . . . . . . . . . . . . . . . . . . . . 21

Subject .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Applicable systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Intended audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Conventions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Related information .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Installation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Serial Data Interface (SDI) cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Circuit card installation . . . . . . . . . . . . . . . . . . . . . 79

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Card slots — Large System .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Circuit card installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Installing a circuit card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Circuit Card Description and Installation

Page 6 of 906 Contents

Acceptance tests . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Conference cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Digitone receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Multifrequency sender cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Multifrequency signaling cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Network cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Tone and digit switch cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Option settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Circuit card grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

NT1R20 Off-Premise Station card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

NT5D12AA Dual DTI/PRI (DDP) card . . . . . . . . . . . . . . . . . . . . . . . . 107

NT6D42 Ringing Generator DC .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

NT5D2101/NT9D1102 Core/Network module backplane .. . . . . . . . . 117

NT6D68 Core module backplane . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

NT6D80 Multi-purpose Serial Data Link card . . . . . . . . . . . . . . . . . . . 118

NT8D14 Universal Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

NT8D15 E&M Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124

NT8D17 Conference/TDS card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125

NT8D21 Ringing Generator AC .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

NT8D22 System Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

NT8D41BA Quad Serial Data Interface Paddle Board . . . . . . . . . . . . 132

NT8D72 Primary Rate Interface card .. . . . . . . . . . . . . . . . . . . . . . . . . 134

QPC43 Peripheral Signaling card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136

QPC71 E&M/DX Signaling and Paging Trunk cards . . . . . . . . . . . . . 136

553-3001-211 Standard 3.00 August 2005

Contents Page 7 of 906

QPC414 Network card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

QPC441 3-Port Extender cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138

QPC559, QPC560 Loop Signaling Trunk cards . . . . . . . . . . . . . . . . . 141

QPC528 CO/FX/WATS Trunk cards .. . . . . . . . . . . . . . . . . . . . . . . . . 143

QPC471 Clock Controller card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144

QPC525, QPC526, QPC527, QPC777 CO Trunk card .. . . . . . . . . . . . 145

QPC550 Direct Inward Dial Trunk card . . . . . . . . . . . . . . . . . . . . . . . . 146

QPC551 Radio Paging Trunk card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149

QPC595 Digitone Receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150

QPC577, QPC596 Digitone Receiver daughterboards . . . . . . . . . . . . . 150

QPC720 Primary Rate Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . 150

QPC775 Clock Controller card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

QPC841 4-Port Serial Data Interface card . . . . . . . . . . . . . . . . . . . . . . 153

NT1R20 Off-Premise Station

Analog Line card . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160

Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165

Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

Configuring the OPS analog line card .. . . . . . . . . . . . . . . . . . . . . . . . . 174

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175

NT4N39AA CP Pentium IV Card . . . . . . . . . . . . . . . 183

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186

Circuit Card Description and Installation

Page 8 of 906 Contents

Front panel connector pin assignments .. . . . . . . . . . . . . . . . . . . . . . . . 187

NT5D11 and NT5D14 Lineside T1

Interface cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202

Installation and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204

Man-Machine T1 maintenance interface software . . . . . . . . . . . . . . . . 225

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244

NT5D33 and NT5D34 Lineside E1

Interface cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 255

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Installation and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271

Man-Machine E1 maintenance interface software . . . . . . . . . . . . . . . . 284

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310

NT5D60/80 CLASS Modem card (XCMC) . . . . . . . 313

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 313

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 317

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 318

553-3001-211 Standard 3.00 August 2005

Contents Page 9 of 906

NT5D97 Dual-port DTI2/PRI2 card . . . . . . . . . . . . . 319

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340

Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 353

Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 359

NT5K02 Flexible Analog Line card . . . . . . . . . . . . 367

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368

NT5K21 XMFC/MFE card . . . . . . . . . . . . . . . . . . . . . 369

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

MFC signaling .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 369

MFE signaling .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372

Sender and receiver mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

NT6D70 SILC Line card . . . . . . . . . . . . . . . . . . . . . . 379

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

NT6D71 UILC Line card . . . . . . . . . . . . . . . . . . . . . . 385

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 386

Circuit Card Description and Installation

Page 10 of 906 Contents

NT6D80 MSDL card . . . . . . . . . . . . . . . . . . . . . . . . 389

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392

Engineering guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 397

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413

Replacing MSDL cards .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 421

Symptoms and actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 422

System disabled actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 423

NT7D16 Data Access card . . . . . . . . . . . . . . . . . . . 427

Content list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 427

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Features .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 428

Controls and indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 429

Dialing operations .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 430

Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 435

Keyboard dialing .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 472

Hayes dialing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 485

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 497

System database requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500

Power supply .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 504

Installing the Data Access card .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 505

Port configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 507

Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509

Backplane pinout and signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 514

Configuring the Data Access card . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517

Connecting Apple Macintosh to the DAC . . . . . . . . . . . . . . . . . . . . . . 522

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Contents Page 11 of 906

Upgrading systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 522

NT8D02 and NTDK16 Digital Line cards . . . . . . . . 527

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 528

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 530

Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 536

Digital line interface specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . 537

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 539

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 541

NT8D03 Analog Line card . . . . . . . . . . . . . . . . . . . . 545

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 545

NT8D09 Analog Message Waiting

Line card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561

NT8D14 Universal Trunk card . . . . . . . . . . . . . . . . 565

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 565

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 567

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570

Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 573

Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 609

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 614

Circuit Card Description and Installation

Page 12 of 906 Contents

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 615

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 624

NT8D15 E&M Trunk card . . . . . . . . . . . . . . . . . . . . 627

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 627

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 627

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 631

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 641

Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 655

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 658

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 664

NT8D41AA Serial Data Interface

Paddle Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 667

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 667

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 667

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 668

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 671

Configuring the SDI paddle board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 672

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 678

NT8D41BA Quad Serial Data Interface

Paddle Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 681

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 682

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 682

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 685

Configuring the QSDI paddle board . . . . . . . . . . . . . . . . . . . . . . . . . . . 687

553-3001-211 Standard 3.00 August 2005

Contents Page 13 of 906

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 692

NTAG26 XMFR card . . . . . . . . . . . . . . . . . . . . . . . . 695

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 695

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 695

Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 700

NTAK02 SDI/DCH card . . . . . . . . . . . . . . . . . . . . . . 701

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 701

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 701

NTAK02 SDI/DCH card .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 701

NTAK09 1.5 Mb DTI/PRI card . . . . . . . . . . . . . . . . . 709

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 709

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 710

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 714

Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 715

NTAK10 2.0 Mb DTI card . . . . . . . . . . . . . . . . . . . . . 721

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 721

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 721

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 722

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 723

Architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 724

NTAK20 Clock Controller daughterboard . . . . . . . 735

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 735

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 735

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 738

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 739

Circuit Card Description and Installation

Page 14 of 906 Contents

NTAK79 2.0 Mb PRI card . . . . . . . . . . . . . . . . . . . . 745

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 745

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 746

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751

Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 752

NTAK93 D-channel Handler

Interface daughterboard . . . . . . . . . . . . . . . . . . . . 763

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 763

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 763

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 765

NTBK22 MISP card . . . . . . . . . . . . . . . . . . . . . . . . . 769

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 769

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 769

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 769

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 770

NTBK50 2.0 Mb PRI card . . . . . . . . . . . . . . . . . . . . 773

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 773

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 774

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 777

Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 778

NTBK51 Downloadable D-channel Handler

daughterboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . 785

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 785

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 785

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 786

553-3001-211 Standard 3.00 August 2005

Contents Page 15 of 906

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 787

Download operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 789

NTCK16 Generic Central Office

Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 791

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 791

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 791

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 793

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 793

Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 794

Electrical specifications .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 796

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 797

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 797

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 807

NTDK20 Small System

Controller card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 811

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 811

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 811

Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 814

100BaseT IP daughterboards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 815

PC card interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 818

Security device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819

SDI ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820

Conferencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 820

MG 1000S/Expansion card slot assignment . . . . . . . . . . . . . . . . . . . . . 821

NTRB21 DTI/PRI/DCH TMDI card . . . . . . . . . . . . . . 825

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 825

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 825

Physical description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 826

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 830

Circuit Card Description and Installation

Page 16 of 906 Contents

Software description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 831

Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 831

Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 831

NTVQ01xx Media Card . . . . . . . . . . . . . . . . . . . . . . 839

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839

Hardware architecture .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 841

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 843

Survivability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 843

NTVQ55AA ITG Pentium card . . . . . . . . . . . . . . . . 845

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 845

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 845

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 846

QPC513 Enhanced Serial Data

Interface card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 851

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 851

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 851

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 852

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 854

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 859

Configuring the ESDI card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 862

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 867

QPC841 Quad Serial Data Interface card . . . . . . . 869

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 869

Introduction .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 869

Physical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 870

Functional description .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 872

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 874

553-3001-211 Standard 3.00 August 2005

Contents Page 17 of 906

Configuring the QSDI card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 876

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 882

The TDS/DTR card . . . . . . . . . . . . . . . . . . . . . . . . . . 885

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 885

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 885

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 886

Appendix A: LAPB Data Link Control

protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 901

Contents .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 901

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 901

Operation .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 901

Frame structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 902

LAPB balanced class of procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 903

Commands and responses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 904

Description of procedure .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 905

Circuit Card Description and Installation

Page 18 of 906 Contents

553-3001-211 Standard 3.00 August 2005

Page 19 of 906

LIst of procedures

Procedure 1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Procedure 2

Testing conference cards . . . . . . . . . . . . . . . . . . . . . . . .90

Procedure 3

Testing digitone receiver cards . . . . . . . . . . . . . . . . . . . 92

Procedure 4

Testing line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93

Procedure 5

Testing multifrequency sender cards . . . . . . . . . . . . . .94

Procedure 6

Testing multifrequency signaling cards . . . . . . . . . . . .95

Procedure 7

Testing network cards . . . . . . . . . . . . . . . . . . . . . . . . . .95

Procedure 8 Testing a trunk card using a maintenance telephone .96

Procedure 9

Testing a trunk card using a system terminal . . . . . . . 96

Procedure 10

Testing tone and digit switch cards . . . . . . . . . . . . . . . 97

Circuit Card Description and Installation

Page 20 of 906 LIst of procedures

Procedure 11

Connecting to the MDF . . . . . . . . . . . . . . . . . . . . . . . . . . 215

Procedure 12 Connecting two or more lineside T1 cards to the

MMI terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220

Procedure 13 Connecting two or more LEIs to the MMI terminal . . . 279

Procedure 14

Installing the NT5D97 . . . . . . . . . . . . . . . . . . . . . . . . . . . 363

Procedure 15

Removing the NT5D97 . . . . . . . . . . . . . . . . . . . . . . . . . . 364

Procedure 16

Installing the MSDL card . . . . . . . . . . . . . . . . . . . . . . . . 407

Procedure 17

Cabling the MSDL card to the PRI card . . . . . . . . . . . . 410

Procedure 18

Cabling the MSDL card to the I/O panel . . . . . . . . . . . . 411

Procedure 19

Replacing an MSDL card . . . . . . . . . . . . . . . . . . . . . . . . 421

553-3001-211 Standard 3.00 August 2005

Page 21 of 906

About this document

This document is a global document. Contact your system supplier or your Nortel representative to verify that the hardware and software described are supported in your area.

Subject

This document outlines the functions, specifications, applications, and operation of the various circuit cards.

Note 1: Line cards – This information is intended to be used as a guide when connecting the line cards to customer-provided station equipment.

Note 2: Trunk cards – This information is intended to be used as a guide when connecting the trunk cards to customer-provided equipment and central office trunk facilities.

Note 3: MSDL card – This card provides multiple interface types with four full-duplex serial I/O ports that can be independently configured for various operations. Peripheral software downloaded to the MSDL controls functionality for each port.

Note 4: Synchronous operation is permitted on all MSDL ports. Port 0 can be configured as an asynchronous Serial Data Interface (SDI).

For detailed procedures for removing a specific circuit card and installing a replacement, see Communication Server 1000M and Meridian 1: Large System Maintenance (553-3021-500).

For a description of all administration programs and maintenance programs, see the Software Input/Output: Administration (553-3001-311). For

Circuit Card Description and Installation

Page 22 of 906 About this document

information about system messages, see the Software Input/Output: System Messages (553-3001-411).

Note on legacy products and releases

This NTP contains information about systems, components, and features that are compatible with Nortel Communication Server 1000 Release 4.5 software. For more information on legacy products and releases, click the Technical Documentation link under Support & Training on the Nortel home page:

www.nortel.com

Applicable systems

This document applies to the following systems:

• Communication Server 1000S (CS 1000S)

• Communication Server 1000M Chassis (CS 1000M Chassis)

• Communication Server 1000M Cabinet (CS 1000M Cabinet)

• Communication Server 1000M Half Group (CS 1000M HG)

• Communication Server 1000M Single Group (CS 1000M SG)

• Communication Server 1000M Multi Group (CS 1000M MG)

• Communication Server 1000E (CS 1000E)

• Meridian 1 PBX 11C Chassis

• Meridian 1 PBX 11C Cabinet

• Meridian 1 PBX 51C

• Meridian 1 PBX 61C

•Meridian1 PBX81

• Meridian 1 PBX 81C

Note: When upgrading software, memory upgrades may be required on the Signaling Server, the Call Server, or both.

553-3001-211 Standard 3.00 August 2005

About this document Page 23 of 906

System migration

When particular Meridian 1 systems are upgraded to run CS 1000 Release 4.5 software and configured to include a Signaling Server, they become CS 1000M systems. Table 1 lists each Meridian 1 system that supports an upgrade path to a CS 1000M system.

Table 1 Meridian 1 systems to CS 1000M systems

This Meridian 1 system... Maps to this CS 1000M system

Meridian 1 PBX 11C Chassis CS 1000M Chassis

Meridian 1 PBX 11C Cabinet CS 1000M Cabinet

Meridian 1 PBX 51C CS 1000M Half Group

Meridian 1 PBX 61C CS 1000M Single Group

Meridian 1 PBX 81 CS 1000M Multi Group

Meridian 1 PBX 81C CS 1000M Multi Group

For more information, see one or more of the following NTPs:

• Communication Server 1000M and Meridian 1: Small System Upgrade Procedures (553-3011-258)

• Communication Server 1000M and Meridian 1: Large System Upgrade Procedures (553-3021-258)

• Communication Server 1000S: Upgrade Procedures (553-3031-258)

• Communication Server 1000E: Upgrade Procedures (553-3041-258)

Intended audience

This document is intended for individuals responsible for maintaining Internet Enabled systems.

Circuit Card Description and Installation

Page 24 of 906 About this document

Conventions

Terminology

In this document, the following systems are referred to generically as “system”:

• Communication Server 1000S (CS 1000S)

• Communication Server 1000M (CS 1000M)

• Communication Server 1000E (CS 1000E)

•Meridian1

The following systems are referred to generically as “Small System”:

• Communication Server 1000M Chassis (CS 1000M Chassis)

• Communication Server 1000M Cabinet (CS 1000M Cabinet)

• Meridian 1 PBX 11C Chassis

• Meridian 1 PBX 11C Cabinet

The following systems are referred to generically as “Large System”:

• Communication Server 1000M Half Group (CS 1000M HG)

• Communication Server 1000M Single Group (CS 1000M SG)

• Communication Server 1000M Multi Group (CS 1000M MG)

• Meridian 1 PBX 51C

• Meridian 1 PBX 61C

•Meridian1 PBX81

• Meridian 1 PBX 81C

553-3001-211 Standard 3.00 August 2005

Related information

This section lists information sources that relate to this document.

NTPs

The following NTPs are referenced in this document:

• Meridian Link ISDN/AP General Guide (553-2901-100)

• Spares Planning (553-3001-153)

• Equipment Identification (553-3001-154)

• Transmission Parameters (553-3001-182)

• System Management (553-3001-300)

• Features and Services (553-3001-306)

• Software Input/Output: Administration (553-3001-311)

• Telephones and Consoles: Description, Installation, and Operation (553-3001-367)

• Software Input/Output: System Messages (553-3001-411)

• Software Input/Output: Maintenance (553-3001-511)

About this document Page 25 of 906

• Communication Server 1000M and Meridian 1: Large System Planning and Engineering (553-3021-120)

• Communication Server 1000M and Meridian 1: Large System Installation and Configuration (553-3021-210)

• Communication Server 1000M and Meridian 1: Large System Maintenance (553-3021-500)

• Communication Server 1000S: Installation and Configuration (553-3031-210)

• Meridian Link description (553-3201-110)

Online

To access Nortel documentation online, click the Technical Documentation link under Support & Training on the Nortel home page:

www.nortel.com

Circuit Card Description and Installation

Page 26 of 906 About this document

CD-ROM

To obtain Nortel documentation on CD-ROM, contact your Nortel customer representative.

553-3001-211 Standard 3.00 August 2005

Page 27 of 906

Overview

This section contains information on the following topics:

Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Analog line interface units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Digital line interface units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Analog line call operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Digital line call operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Lineside T1 call operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Voice frequency audio level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Off-premise line protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Line protectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Line protection grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Line and telephone components . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Host interface bus. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Trunk interface unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Serial Data Interface (SDI) cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Uses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Circuit Card Description and Installation

Page 28 of 906 Overview

Line cards

The following line cards are designed using the Intelligent Peripheral Equipment (IPE) architecture and are recommended for use in all new system designs.

Each of the line cards was designed to fit a specific system need. Table 2 lists the line card characteristics.

Table 2 Line card characteristics

Part Number

Description Lines

Line Typ e

Message Waiting

Supervised Analog Lines

Architecture

NT1R20 Off-premise station

analog line card

NT5D11 Lineside T1 Interface

card

NT5D33/34 Lineside E1 Interface

card

NT8D02 Digital Line card

(16 voice/16 data)

NT8D09 Analog Message

Waiting Line card

8 Analog Interrupted dial

tone

24 T1 None Ye s IPE

30 E1 None Yes IPE

16 Digital Message waiting

signal forwarded to digital phone for display

16 Analog Lamp No IPE

Ye s IPE

No IPE

553-3001-211 Standard 3.00 August 2005

Overview Page 29 of 906

NT1R20 Off-Premise Station Analog Line card

The NT1R20 Off-Premise Station (OPS) Analog Line card is an intelligent eight-channel analog line card designed to be used with 2-wire analog terminal equipment such as analog (500/2500-type) telephones and analog modems. Each line has integral hazardous and surge voltage protection to protect the system from damage due to lightning strikes and accidental power line connections. This card is normally used whenever the phone lines have to leave the building in which the switch is installed. The OPS line card supports message waiting notification by interrupting the dial tone when the receiver is first picked up. It also provides battery reversal answer and disconnect analog line supervision and hook flash disconnect analog line supervision features.

NT5D11 lineside T1 interface card

The NT5D11 lineside T1 Interface card is an intelligent 24-channel digital line card that is used to connect the switch to T1 compatible terminal equipment on the lineside. T1 compatible terminal equipment includes voice mail systems, channel banks containing FXS cards, and key systems such as the Nortel Norstar. The lineside T1 card differs from trunk T1 cards in that it supports terminal equipment features such as hook-flash, transfer, hold, and conference. It emulates an analog line card to the system software.

NT5D33 and NT5D34 Lineside E1 Interface card

The NT5D33/34 Lineside E1 Interface card is an intelligent 30-channel digital line card that is used to connect the switch to E1 compatible terminal equipment on the lineside. E1 compatible terminal equipment includes voice mail systems. The lineside E1 card emulates an analog line card to the system software.

NT8D02 digital line card

The NT8D02 Digital Line card is an intelligent 16-channel digital line card that provides voice and data communication links between a CS 1000S, CS 1000M, and Meridian 1 switch and modular digital telephones. Each of the 16 channels support voice-only or simultaneous voice and data service over a single twisted pair of standard telephone wire.

Circuit Card Description and Installation

Page 30 of 906 Overview

NT8D09 analog message waiting line card

The NT8D09 Analog Message Waiting Line card is an intelligent 16-channel analog line card designed to be used with 2-wire terminal equipment such as analog (500/2500-type) telephones, modems, and key systems. This card can also provide a high-voltage, low-current signal on the Tip and Ring pair of each line to light the message waiting lamp on phones equipped with that feature.

Installation

This section provides a high-level description of how to install and test line cards.

IPE line cards can be installed in any slot of the NT8D37 IPE module. Figure 1 shows where an IPE line card can be installed in an NT8D37 IPE module.

Figure 1 IPE line cards shown installed in an NT8D37 IPE module

IPEPE Module

Intelligent line cards

Intelligent trunk cards

PE Pwr Sup Rng Gen

0 2 3 4 5 6 7 Cont 9 11 12 13 15181410

553-3001-211 Standard 3.00 August 2005

BRSC

Intelligent line cards

Intelligent trunk cards

BRSC

NT8D01 Controller Card

Intelligent Peripheral Equipment

Superloop

Shelf

553-3092

When installing line cards, follow these general procedures:

• Configure the jumpers and switches on the line card (if any) to meet

• Install the line card into the selected slot.

• Install the cable that connects the backplane connector on the IPE

• Connect a 25-pair cable from the module I/O panel connector to the Main

• Connect the line card output to the selected terminal equipment at the

• Configure the individual line interface unit using the Analog (500/

Once these steps have been completed, the terminal equipment is ready for use.

Operation

Overview Page 31 of 906

system needs.

module to the module I/O panel.

Distribution Frame (MDF).

MDF.

2500-type) Telephone Administration program LD 10 for analog line interface units and Multi-line Telephone Administration program LD 11 for digital line interface units.

This section describes how line cards fit into the CS 1000S, CS 1000M, and Meridian 1 architecture, the busses that carry signals to and from the line cards, and how they connect to terminal equipment. These differences are summarized in Table 3 on page 32.

Host interface bus

Cards based on the IPE bus have a built-in microcontroller. The IPE microcontroller is used to do the following:

• perform local diagnostics (self-test)

Circuit Card Description and Installation

Page 32 of 906 Overview

• configure the card according to instructions issued by the system

• report back to the system information such as card identification (type, vintage, and serial number), firmware version, and programmed configuration status)

Table 3 IPE module architecture

Parameter IPE

Card Dimensions 31.75 x 25.4 x 2.2 cm.

Network Interface DS-30X Loops

Communication Interface card LAN Link

Microcontroller 8031 / 8051 Family

(12.5 x10.0 x 0.875 in.)

Peripheral

Interface card

Network Interface card NT8D04 Superloop Network card

Modules NT8D37 IPE module

NT8D01 Controller card

Intelligent Peripheral Equipment

IPE line cards all have a similar architecture. Figure 2 on page 34 shows a typical IPE line card architecture. The various line cards differ only in the number and types of line interface units.

The switch communicates with IPE modules over two separate interfaces. Voice and signaling data are sent and received over DS-30X loops, and maintenance data is sent over a separate asynchronous communication link called the card LAN link.

Signaling data is information directly related to the operation of the telephone line. Some examples of signaling commands include:

• off-hook/on-hook

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Overview Page 33 of 906

• ringing signal on/off

• message waiting lamp on/off

Maintenance data is data relating to the configuration and operation of the IPE card, and is carried on the card LAN link. Some examples of maintenance data include:

• polling

• reporting of self-test status

• CP initiated card reset

• reporting of card ID (card type and hardware vintage)

• reporting of firmware version

• downloading line interface unit parameters

• reporting of line interface unit configuration

• enabling/disabling of the DS-30X network loop bus

• reporting of card status or T1 link status

Circuit Card Description and Installation

Page 34 of 906 Overview

Figure 2 Typical IPE analog line card architecture

Back-

plane

Con-

troller

card

Front

panel

LED

Card slot

address

Async card

frame sync

LAN link

Tx PCM Rx PCM

5.12 MHz clock

1 kHz

Input/output

interface

control

Micro-

controller

Card LAN

interface

DS-30X

interface

and status

Control

logic

PCM

Address/ data bus

PCM

Signaling

Codec

signaling

interface

Line

Interface

Unit

Line

Interface

Unit

Line interface unit power

Tip

Ring

Analog or digital telephone linesAnalog or digital telephone lines

Tip

Ring

Power supplies

553-3001-211 Standard 3.00 August 2005

553-6150

Overview Page 35 of 906

DS-30X loops

The line interfaces provided by the line cards connect to conventional 2-wire (tip and ring) line facilities. IPE analog line cards convert the incoming analog voice and signaling information to digital form and route it to the Call Server over DS-30X network loops. Conversely, digital voice and signaling information from the Call Server is sent over DS-30X network loops to the analog line cards where it is converted to analog form and applied to the line facility.

IPE digital line cards receive the data from the digital phone terminal as 512 kHz Time Compressed Multiplexed (TCM) data. The digital line card converts that data to a format compatible with the DS-30X loop and transmits it in the next available timeslot. When a word is received from the DS-30X loop, the digital line card converts it to the TCM format and transmits it to the digital phone terminal over the digital line facility.

A separate dedicated DS-30X network loop is extended between each IPE line/trunk card and the controller cards within an IPE module. A DS-30X network loop is composed of two synchronous serial data buses. One bus transports in the Transmit (Tx) direction towards the line facility and the other in the Receive (Rx) direction towards the CS 1000S, CS 1000M, and Meridian 1.

Each bus has 32 channels for Pulse Code Modulated (PCM) voice data. Each channel consists of a 10-bit word. See Figure 3 on page 36. Eight of the 10 bits are for PCM data, one bit is the call signaling bit, and the last bit is a data valid bit. The eight-bit PCM portion of a channel is called a timeslot. The DS-30X loop is clocked at 2.56 Mbps (one-half the 5.12 MHz clock frequency supplied by the controller card). Thus, the timeslot repetition rate for a single channel is 8 kHz. The controller card also supplies a locally generated 1 kHz frame sync signal for channel synchronization.

Signaling data is transmitted to and from the line cards using the call signaling bit within the 10-bit channel. When the line card detects a condition that the switch needs to know about, it creates a 24-bit signaling word. This word is shifted out on the signaling bit for the associated channel one bit at a time during 24 successive DS-30X frames. Conversely, when the switch sends signaling data to the line card, it is sent as a 24-bit word divided among 24 successive DS-30X frames.

Circuit Card Description and Installation

Page 36 of 906 Overview

Figure 3 DS-30X loop data format

DS-30X loop

data words

Frame

sync

5.12 MHz

2.56 MHz

Frame sync

DS-30X loop

data bits

W0B7W31DV

SB = SIGNALING BIT DV = DATA VALID

30 31 0 1 2 3 4

W0B6 W0B5 W0B4 W0B3 W0B2 W0B1 W0B0 W0SB W0DV W1B7

553-6151

DS-30Y network loops extend between controller cards and superloop network cards in the Common Equipment (CE). They function in a manner similar to DS-30X loops. See Figure 5 on page 41.

A DS-30Y loop carries the PCM timeslot traffic of a DS-30X loop. Four DS-30Y network loops form a superloop with a capacity of 128 channels (120 usable timeslots). See Communication Server 1000M and Meridian 1: Large System Planning and Engineering (553-3021-120) for more information on superloops.

Card LAN link

Maintenance communication is the exchange of control and status data between IPE line or trunk cards and the Call Server by way of the NT8D01 Controller card. Maintenance data is transported through the card LAN link. This link is composed of two asynchronous serial buses (called the Async card LAN link in Figure 2 on page 34). The output bus is used by the system controller for output of control data to the line card. The input bus is used by the system controller for input of line card status data.

553-3001-211 Standard 3.00 August 2005

Overview Page 37 of 906

A card LAN link bus is common to all of the line/trunk card slots within an IPE module. This bus is arranged in a master/slave configuration where the controller card is the master and all other cards are slaves. The module backplane provides each line/trunk card slot with a unique hardwired slot address. This slot address enables a slave card to respond when addressed by the controller card. The controller card communicates with only one slave at a time.

In normal operation, the controller card continually scans (polls) all of the slave cards connected to the card LAN to monitor their presence and operational status. The slave card sends replies to the controller on the input bus along with its card slot address for identification. In its reply, the slave informs the controller if any change in card status has taken place. The controller can then prompt the slave for specific information. Slaves only respond when prompted by the controller; they do not initiate exchange of control or status data on their own.

When an IPE line card is first plugged into the backplane, it runs a self-test. When the self-test is completed, a properly functioning card responds to the next controller card poll with the self-test status. The controller then queries for card identification and other status information. The controller then downloads all applicable configuration data to the line card, initializes it, and puts it into an operational mode.

Analog line interface units

Once the 8-bit digital voice signal has been received by the analog line card, it must be converted back into an analog signal, filtered, converted from a 4-wire transmission path to a 2-wire transmission path, and driven onto the analog telephone line.

Figure 4 on page 38 shows a typical example of the logic that performs these functions. Each part of the analog line interface unit is discussed in the following section.

Circuit Card Description and Installation

Page 38 of 906 Overview

Figure 4 Typical analog line interface unit block diagram

DS-30X or

SL-1 network

loop Tx PCM Rx PCM

CODEC

Variable gain

filters

2-wire

4-wire

conversion

Balancing Network

Impedance

matching

transformer

Tip

Line

interface

and

protection

Ring

Off-hook

Ringing

Message

waiting

Off-hook

detector

Ring voltage

Ringing

circuit

Message

waiting

circuit

–150V dc

553-6153

553-3001-211 Standard 3.00 August 2005

Overview Page 39 of 906

Coder/Decoder circuit

The Coder/Decoder (CODEC) performs Analog to Digital (A/D) and Digital to Analog (D/A) conversion of the line analog voiceband signal to and from a digital PCM signal. This signal can be coded and decoded using either the A-Law or the µ-Law companding algorithm.

On some analog line cards, the decoding algorithm depends of the type of CODEC installed when the board is built. On others, it is an option selected using a software overlay.

Variable gain filters

Audio signals received from the analog phone line are passed through a low-pass A/D monolithic filter that limits the frequency spread of the input signal to a nominal 200 to 3400 Hz bandwidth. The audio signal is then applied to the input of the CODEC. Audio signals coming from the CODEC are passed through a low-pass A/D monolithic filter that integrates the amplitude modulated pulses coming from the CODEC, and then filters and amplifies the result. On some of the line cards, the gain of these filters can be programmed by the system controller. This allows the system to make up for line losses according to the loss plan.

Balancing network

Depending on the card type, the balancing network provides a 600 ¾, 900 ¾, 3COM or 3CM2 impedance matching network. It also converts the 2-wire transmission path (tip and ring) to a 4-wire transmission path (Rx/ground and Tx/ground). The balancing network is usually a transformer/analog (hybrid) circuit combination, but can also be a monolithic Subscriber Line Interface Circuit (SLIC) on the newer line cards.

Line interface and foreign voltage protection

The line interface unit connects the balancing network to the telephone tip and ring pairs. The off-premise line card (NT1R20) has circuitry that protects the line card from foreign voltage surges caused by accidental power line connections and lightning surges. This protection is necessary if the telephone line leaves the building where the switch is installed.

The line interface unit has a relay that applies the ringing voltage onto the phone line. See Figure 4 on page 38. The RSYNC signal from the 20 Hz

Circuit Card Description and Installation

Page 40 of 906 Overview

(nominal) ringing voltage power supply is used to prevent switching of the relay during the current peak. This eliminates switching glitches and extends the life of the switching relay.

The off-hook detection circuit monitors the current draw on the phone line. When the current draw exceeds a preset value, the circuit generates an off-hook signal that is transmitted back to the system controller.

The message waiting circuit on message waiting line cards monitors the status of the message waiting signal and applies –150 V dc power to the tip lead when activated. This voltage is used to light the message waiting lamps on phones that are equipped with that feature. The high voltage supply is automatically disconnected when the phone goes off-hook. Newer line cards can sense when the message waiting lamp is not working and can report that information back to the system controller.

Digital line interface units

The NT8D02 digital line card provides voice and data communication links between a switch and modular digital telephones. These lines carry multiplexed PCM voice, data and signaling information as Time Compression Multiplexed (TCM) loops. Each TCM loop can be connected to a Nortel “Meridian Modular Digital” telephone.

The digital line interface card contains one or more digital line interface units. See Figure 5 on page 41. Each digital line interface unit contains a Digital Line Interface Circuit (DLIC). The purpose of each DLIC is to demultiplex data from the DS-30X Tx channel into integrated voice and data bitstreams and transmit those bitstreams as Bi-Polar Return to Zero, Alternate Mark Inversion (BPRZ-AMI) data to the TCM loop. It also does the opposite: receives BPRZ-AMI bitstreams from the TCM loop and multiplexes the integrated voice and data bitstream onto the DS-30X Rx channel.

The 4-wire to 2-wire conversion circuit converts the 2-wire tip and ring leads into a 4-wire (Tx and ground and RX and ground) signal that is compatible with the digital line interface circuit.

TCM loop interfaces

Each digital phone line terminates on the digital line card at a TCM loop interface circuit. The circuit provides transformer coupling and foreign

553-3001-211 Standard 3.00 August 2005

Figure 5 Digital line interface unit block diagram

DS-30X loop

Tx PCM

Rx PCM

1 kHz frame

sync

±15 V dc power supply

Digital

line

interface

circuit

voltage protection between the TCM loop and the digital line interface circuit. It also provides power for the digital telephone.

4-wire

2-wire

conversion

Overview Page 41 of 906

Tip

TCM loop

interface

and

protection

Ring

553-6154

To prevent undesirable side effects from occurring when the TCM loop interface cannot provide the proper signals on the digital phone line, the system controller can remove the ±15 V dc power supply from the TCM loop interface. This happens when either the card gets a command from the NT8D01 Controller card to shut down the channel, or when the digital line card detects a loss of the 1 KHz frame synchronization signal.

Each TCM loop interface circuit can service loops up to 3500 ft. in length when using 24 gauge wire. The circuit allows for a maximum ac signal loss of 15.5 dB at 256 KHz and a maximum DC loop resistance of 210 ohms.

Signaling

The digital line interface units also contain signaling and control circuits that establish, monitor, and take down call connections. These circuits work with

Circuit Card Description and Installation

Page 42 of 906 Overview

the system controller to operate the digital line interface circuits during calls. The circuits receive outgoing call signaling messages from the controller and return incoming call status information to the controller over the DS-30X network loop.

Analog line call operation

The applications, features, and signalling arrangements for each line interface unit are configured in software and implemented on the card through software download messages. When an analog line interface unit is idle, it provides a voltage near ground on the tip lead and a voltage near –48 V dc on the ring lead to the near-end station. (The near-end station is the telephone or device that is connected to the analog line card by the tip and ring leads.) An on-hook telephone presents a high impedance toward the line interface unit on the card.

Incoming calls

Incoming calls to a telephone that is connected to an analog line card can originate either from stations that are local (served by the PBX), or remote (served through the Public Switched Telephone Network (PSTN)). The alerting signal to a telephone is 20 Hz (nominal) ringing. When an incoming call is answered by the near-end station going off-hook, a low-resistance dc loop is placed across the tip and ring leads (towards the analog line card) and ringing is tripped. See Figure 6 on page 43.

Outgoing calls

For outgoing calls from the near-end station, a line interface unit is seized when the station goes off-hook, placing a low-resistance loop across the tip and ring leads towards the analog line card. See Figure 7 on page 44. When the card detects the low-resistance loop, it prepares to receive digits. When the system is ready to receive digits, it returns dial tone. Outward address signaling is then applied from the near-end station in the form of loop (interrupting) dial pulses or DTMF tones.

553-3001-211 Standard 3.00 August 2005

Figure 6 Call connection sequence – near-end station receiving call

Near-end

Far-end

station

through

PSTN

System

station

Overview Page 43 of 906

Line card unit idle

Alert

Near-end station

off hook

(2-way voice

connection)

Near-end station

on hook

Line card unit idle

Far-end station

on hook

Line card unit idle

Signal/directionState

Ground on tip/ battery on ring

Ringing

Low-resistance loop

High-resistance loop

Ground on tip/ battery on ring

High-resistance loop

Ground on tip/ battery on ring

High-

resistance

loop

High-

resistance

loop

High-

resistance

loop

Remarks

No battery current drawn.

Far-end station goes off hook and addresses (dials up) near-end station. The system receives the incoming call on a trunk and determines that the call is for a specific unit terminal number (TN) and assigns message timeslots.

The system applies 20 Hz ringing to ring lead.

Near-end station goes off hook.

The system detects increase in loop current, trips ringing, and cuts call through to near-end station.

If near-end station hangs up first, the following occurs: Line card detects drop in loop current. CPU removes timeslot assignments. Line card unit is ready for the next call.

If far-end station hangs up first, the following occurs: The system detects disconnect signaling from trunk. CPU removes timeslot assignments. Person at near-end station recognizes end of call and hangs up.

Line card unit is ready for the next call.

553-AAA1113

Circuit Card Description and Installation

Page 44 of 906 Overview

Figure 7 Call connection sequence – near-end originating call

Near-end

Far-end

station

through

PSTN

System

station

Signal/directionState

High-

Ground on tip/

Line card unit idle

Call request

Outpulsing Near-end station dials number (loop pulsing or

(2-way voice

connection)

Near-end station

on hook

Line card unit idle

battery on ring

Low-resistance loop

Dial tone

Ringback (or busy)

High-resistance loop

Ground on tip/ battery on ring

resistance

loop

Addressing signals

High-

resistance

loop

No battery current drawn.

Near-end station goes off hook. Battery current is drawn causing detection of off-hook state. CPU determines unit terminal number (TN) and assigns message timeslots.

Dial tone is applied to the near-end station from the system.

DTMF tones).

The system detects start of dialing and removes dial tone.

The system decodes addressing, routes call, and supplies ringback tone to near-end station if farend station is on hook. (Busy tone supplied if far-end station is busy.)

When call is answered, ringback tone is removed , and call is cut through to far-end station.

If near-end station hangs up first, the following occurs: Line card detects drop in loop current. CPU removes timeslot assignments.

Line card unit is ready for the next call.

Remarks

Far-end station

on hook

Line card unit idle

High-resistance loop

Ground on tip/ battery on ring

resistance

553-3001-211 Standard 3.00 August 2005

If far-end station hangs up first, the following occurs: The system detects disconnect signaling from trunk. CPU removes timeslot assignments.

High-

Person at near-end station recognizes end of call and hangs up.

loop

Line card unit is ready for the next call.

553-AAA1114

Overview Page 45 of 906

Message waiting

Line cards that are equipped with the message waiting feature receive notification that a message is waiting across the Card LAN link (IPE cards). On cards that drive a message waiting light, the light is turned on by connecting the ring side of the telephone line to the –150 V dc power supply. When the line card senses that the telephone has gone off-hook, it removes the –150 V dc voltage until the telephone goes back on-hook. Line cards that use an interrupted dial tone to indicate message waiting do nothing until the receiver is picked up. The line card then interrupts the dial tone at a regular interval to indicate that a message is waiting.

In both cases, the message waiting indication will continue until the user checks his or her messages. At that time, the system will cancel the message waiting indication by sending another message across the Card LAN link or network loop.

Analog line supervision

Analog line supervision features are used to extend the answer supervision and disconnect supervision signals when the line card is connected to an intelligent terminal device (Key system or intelligent pay phone). Two types of analog line supervision are provided:

• battery reversal answer and disconnect supervision

• hook flash disconnect supervision

Battery reversal answer and disconnect supervision

Battery reversal answer and disconnect supervision is only used for calls that originate from the terminal device. It provides both far-end answer supervision and far-end disconnect supervision signals to the terminal device. In an intelligent pay phone application, these signals provide the information necessary to accurately compute toll charges.

In the idle state, and during dialing and ringing at the far end, the line card provides a ground signal on the tip lead and battery on the ring lead. See Figure 8 on page 47. When the far-end answers, these polarities are reversed. The reversed battery connection is maintained as long as the call is established. When the far-end disconnects, the system sends a message that

Circuit Card Description and Installation

Page 46 of 906 Overview

causes the line card to revert the battery and ground signals to the normal state to signal that the call is complete.

Hook Flash disconnect supervision

Hook flash disconnect supervision is only used for incoming calls that terminate at the terminal device (typically a Key system). See Figure 9 on

page 48. The disconnect signal is indicated by the removal of the ground

connection to the tip lead for a specific length of time. The length of time is programmed in LD10, and ranges from a minimum of 10 milliseconds to a maximum of 2.55 seconds. See Software Input/Output: Administration (553-3001-311) for more information.

Digital line call operation

Digital line call operation is controlled entirely by use of messages between the digital telephone and the system. These messages are carried across the TCM loop interface. There is no call connection sequence similar to the one used for analog telephone line operation.

Lineside T1 call operation

The lineside T1 card’s call operation is performed differently depending on whether the T1 link is configured to process calls in loop start mode or ground start mode. Configuration is performed through dip switch settings on the lineside T1 card.

The lineside T1 card performs calls processing separately on each of its 24 channels. Signaling is performed using the “A/B robbed bit” signaling standard for T1 communication.

A/B robbed bit signaling simulates standard analog signaling by sending a meaningful combination of ones and zeros across the line that correlates to the electrical impulses that standard analog signaling sends. For example, to represent that an analog line interface unit is idle, the analog line card provides a ground on the tip lead and –48Vdc on the ring lead. The lineside T1 card accomplishes the same result by sending its A bit as 0 (translated as ground on the tip lead) and its B bit as 1 (translated as –48V dc on the ring lead). However, measuring the voltage of the ring lead on the T1 line would not return –48V dc, since actual electrical impulses are not being sent.

553-3001-211 Standard 3.00 August 2005

Figure 8 Battery reversal answer and disconnect supervision sequence

Overview Page 47 of 906

Far-end

station

Line card unit idle

Call request

Outpulsing Near-end station dials number (loop pulsing or DTMF

(2-way voice

connection)

Near-end station

Line card unit idle

Far-end station

Line card unit idle

Note 1:

System

on hook

Battery reversal signalling is a supervisory feature that is only used when the near-end station originates the call.

Line card

Signal/directionState

Ground on tip/ battery on ring

Low-resistance loop

Dial tone

Addressing signals

Dial tone removed

Ringback (or busy)

Battery on tip/ ground on ring

Ground on tip/ battery on ring

Ground on tip/

battery on ring

Ground on tip/

battery on ring

Near-end

station

High-

resistance

loop

Low-

resistance

loop

High-

resistance

loop

High-

resistance

loop

Low-

resistance

loop

High-

resistance

loop

Remarks

No battery current drawn.

Near-end station goes off hook. Battery current is drawn causing detection of off-hook state. The system determines unit terminal number (TN) and assigns message timeslots.

Dial tone is applied to the near-end station from the system.

tones).

The system detects start of dialing and removes dial tone.

The system decodes addressing, routes call, and supplies ringback tone to near-end station if far-end station is on hook. (Busy tone supplied if far-end station is busy.)

When call is answered (either absolute or assumed answer, as programmed), ringback tone is removed, call is cut through to far-end station, and battery is reversed to near-end station for duration of call.

If near-end station hangs up first, a high-resistance loop is presented to the system.

The system detects drop in loop current, removes timeslot assignments, sends disconnect signal to far-end station, and restores normal ground/battery polarity to the nearend station. Line card unit is then ready for the next call.

If far-end station hangs up first, the system detects disconnect signalling from the far end, removes timeslot assignments, and restores normal ground/battery polarity to the near-end station.

Near-end station detects battery reversal and goes on hook. Line card unit is then ready for the next call.

553-AAA1115

Circuit Card Description and Installation

Page 48 of 906 Overview

Figure 9 Hook flash disconnect supervision sequence

Line

Far-end

station

System

card

Near-end

station

Line card unit idle

Call request

Alert

Near-end station

off hook

(2-way voice

connection)

Far-end station

on hook

Near-end

station on hook

Line card unit idle

Signal/directionState

Ground on tip/ battery on ring

Ringing

Low-resistance loop

Ground on tip/ battery on ring

Tip open/ battery on ring

Ground on tip/ battery on ring

High-

resistance

loop

Low-

resistance

loop

Low-

resistance

loop

High-

resistance

loop

High-

resistance

loop

Remarks

No battery current drawn. Far-end station goes off hook and addresses

(dials up) near-end station. The system receives the incoming call and determines that the call is for a specific unit terminal number (TN) and assigns message timeslots.

The system applies 20 Hz ringing to the ring lead.

Near-end station goes off hook.

The system detects increase in loop current, trips ringing, and cuts call through to near-end station.

When the far-end station hangs up, the following happens: The system detects disconnect signalling from the far end, removes the timeslot assignments, and sends a hook flash (tip removed from ground) to the near-end station.

The near-end station responds by going on hook, presenting a high-resistance loop to the system.

At the end of the hook-flash interval, the system returns the tip to ground. The line card unit is then ready for the next call. (Note 2)

Note 1:

Hook-flash signalling is a supervisory feature that is only used when the far-end station originates and terminates the call. If the far-end station originates the call but the near-end hangs up first, a hook flash is not sent.

Note 2:

If the end of the hook-flash interval occurs before the near-end station goes on hook, the system waits until the near-end station does so before placing the line card unit in the idle state.

553-3001-211 Standard 3.00 August 2005

553-AAA1116

Overview Page 49 of 906

Call operation will be described by categorizing the operation into the following main states:

• Idle (on-hook)

• Incoming calls

• Outgoing calls

• Calls disconnected by the CO

• Calls disconnected by the telephone

Loop Start Mode

In Loop Start mode , the A and B bits have the following meaning:

Transmit from LTI:A bit = 0 (tip ground on)

B bit = Ringing (0=on, 1=off)

Receive to LTI: A bit = Loop (0=open, 1=closed)

B bit = 1 (no ring ground)

When a T1 channel is idle, the lineside T1 card simulates a ground on the tip lead and –48Vdc on the ring lead to the terminal equipment by setting its transmit A bit to 0 and transmit B bit to 1. Accordingly, an on-hook channel on the terminal equipment simulates an open loop toward the lineside T1 card, causing the lineside T1 card’s receive bits to be set to A = 0 and receive B = 1.

Incoming calls

Incoming calls to terminal equipment attached to the lineside T1 card can originate either from stations that are local (served by the PBX), or remote (served through the PSTN). To provide the ringing signal to a telephone the lineside T1 card simulates an additional 90V on the ring lead to the terminal equipment by alternating the transmit B bit between 0 and 1 (0 during ring on, 1 during ring off). When an incoming call is answered by the terminal equipment going off-hook, the terminal equipment simulates tripping the ringing and shutting off ringing, causing the lineside T1 card’s receive A bit to be changed from 0 to 1.

Circuit Card Description and Installation

Page 50 of 906 Overview

Outgoing calls

During outgoing calls from the terminal equipment, a channel is seized when the station goes off-hook. This simulates a low-resistance loop across the tip and ring leads toward the lineside T1 card, causing the lineside T1’s receive A bit to be changed from 0 to 1. This bit change prepares the lineside T1 to receive digits. Outward address signaling is then applied from the terminal equipment in the form of DTMF tones or loop (interrupting) dial pulses that are signaled by the receive A bit pulsing between 1 and 0.

Call disconnect from far end (PSTN, private network or local Station)

When a call is in process, the central office may disconnect the call from the CS 1000S, CS 1000M, and Meridian 1. If the lineside T1 port has been configured with the supervised analog line (SAL) feature, the lineside T1 card will respond to the distant end disconnect message by momentarily changing its transmit A bit to 1 and then returning it to 0. The duration of time that the transmit A bit remains at 1 before returning to 0 depends upon the setting that was configured using the SAL. If the terminal equipment is capable of detecting distant end disconnect, it will respond by changing the lineside T1 card's receive A bit to 0 (open loop).The call is now terminated and the interface is in the idle (on-hook) state.

For the lineside T1 card to support distant end disconnect in loop start mode, the following configuration parameters must exist:

• The Supervised Analog Line (SAL) feature must be configured for each lineside T1 port.

Note: By default, the SAL feature opens the tip side for 750 m/s in loop start operation. This is configurable in 10 m/s increments.

• For outgoing trunk calls, the trunk facility must provide far end disconnect supervision.

• In order to detect distant end disconnect for calls originating on the lineside T1 card, the battery reversal feature within the SAL software must be enabled. Enabling the battery reversal feature will not provide battery reversal indication but will only provide a momentary interruption of the tip ground by asserting the A bit to 1 for the specified duration.

553-3001-211 Standard 3.00 August 2005

• In order to detect distant end disconnect for calls terminating on the lineside T1 card, the hook flash feature within the SAL software must be enabled.

• In order to detect distant end disconnect for calls originating and terminating on the lineside T1 card, both the battery reversal and hook flash features must be enabled within the SAL software.

Call disconnect from lineside T1 terminal equipment

Alternatively, while a call is in process, the terminal equipment may disconnect by going on-hook. The terminal equipment detects no loop current and sends signaling to the lineside T1 card that causes its receive A bit to change from 1 to 0. The call is now released.

Table 4 outlines the lineside T1’s A and B bit settings in each state of call processing.

Table 4 Loop Start Call Processing A/B Bit Settings (Part 1 of 2)

Overview Page 51 of 906

Transmit Receive

State

Idle 0 1 0 1

Incoming Calls:

•Idle 0 1 0 1

• Ringing is applied from lineside T1 card 0 1/0 0 1

• Terminal equipment goes off-hook 0 1/0 1 1

• Lineside T1 card stops ringing 0 1 1 1

Outgoing Calls:

•Idle 0 1 0 1

• Terminal equipment goes off-hook 0 1 1 1

Call Disconnect from far end:

Circuit Card Description and Installation

A B A B

Page 52 of 906 Overview

Table 4 Loop Start Call Processing A/B Bit Settings (Part 2 of 2)

Transmit Receive

State

• Steady state (call in progress) 0 1 1 1

• Far end disconnects by dropping loop current and lineside T1 card changes Transmit A bit to 1 momentarily.

• Terminal equipment responds causing Receive A bit to change to 0.

• Lineside T1 responds by changing its Transmit A bit to 0. Call is terminated and set to idle state.

Call disconnect from terminal equipment:

• Steady state (call in progress) 0 1 1 1

• Terminal equipment goes on-hook causing the Receive A bit to change to 0. Call is terminated and set to idle state.

A B A B

1 1 1 1

1 1 0 1

0 1 0 1

Ground Start Mode

In ground start mode, the A and B bits have the following meaning:

Transmit from LTI:A bit = Tip ground (0=grounded, 1=not grounded)

B bit = Ringing (0=on, 1=off)

Receive to LTI: A bit = Loop (0=open, 1=closed)

B bit = Ring ground (0=grounded, 1=not grounded)

When a T1 channel is idle, the lineside T1 card simulates a ground on the tip lead and -48V dc on the ring lead to the terminal equipment by setting the transmit A bit to 1 and transmit B bit to 1. Accordingly, an on-hook telephone simulates an open loop toward the lineside T1 card, causing the lineside T1 card’s receive bits to be set to A = 0 and B = 1.

553-3001-211 Standard 3.00 August 2005

Overview Page 53 of 906

Incoming Calls

Incoming calls to terminal equipment that is connected to the lineside T1 card can originate either from stations that are local (served by the PBX), or remote (served through the public switched telephone network). To provide the ringing signal to the terminal equipment the lineside T1 card simulates the 90V ring signal on the ring lead by alternating the transmit B bit between 0 and 1 (0 during ring on, 1 during ring off), and ground on the tip lead by setting the transmit A bit to 0. When an incoming call is answered (by the terminal equipment going off-hook), the terminal equipment simulates tripping the ringing and shutting off ringing by causing the lineside T1’s receive A bit to change from 0 to 1. The lineside T1 card responds to this message by simulating loop closure by holding the transmit B bit constant at 1.

Outgoing Calls

During outgoing calls from the terminal equipment, a channel is seized when the terminal equipment goes off-hook, simulating a ground to the ring lead toward the lineside T1 card by causing the lineside T1’s receive B bit to change from 1 to 0. In turn, the lineside T1 card simulates grounding its tip lead by changing the transmit A bit to 0. The terminal equipment responds to this message by removing the ring ground (lineside T1’s receive B bit is changed to 1) and simulating open loop at the terminal equipment (lineside T1’s receive A bit is changed to 0).

Call disconnect from far end (PSTN, private network or local station

While a call is in process, the far end might disconnect the call. If the lineside T1 port has been configured with the Supervised Analog Line (SAL) feature, the lineside T1 will respond to the distant end disconnect message by opening tip ground. This causes the lineside T1 card to change the transmit A bit to 1. When the terminal equipment sees the transmit A bit go to 1, it responds by simulating open loop causing the lineside T1’s receive A bit to change to 0. The call is terminated and the interface is once again in the idle condition.

For the lineside T1 card to support distant end disconnect in ground start mode, the following configuration parameters must exist:

• The Supervised Analog Line (SAL) feature must be configured for each lineside T1 port.

Circuit Card Description and Installation

Page 54 of 906 Overview

Note: By default, the SAL feature opens the tip side for 750 m/s in loop start operation. This is configurable in 10 m/s increments.

• In order to detect distant end disconnect for calls originating on the lineside T1 card, the “battery reversal” feature within the SAL software must be enabled. Enabling the “battery reversal” feature will not provide battery reversal indication when a call is answered; it will only provide battery reversal indication when a call is disconnected.

• In order to detect distant end disconnect for calls terminating on the lineside T1 card, the “hook flash” feature within the SAL software must be enabled.

• In order to detect distant end disconnect for calls originating and terminating on the lineside T1 card, both the “battery reversal” and “hook flash” features within the SAL software must be enabled.

Call disconnect from lineside T1 terminal equipment

Alternatively, while a call is in process, the terminal equipment may disconnect by going on-hook, causing the lineside T1’s receive A bit to change to 0. The lineside T1 card responds to this message by simulating the removal of ground from the tip by changing its transmit A bit to 1. The call is now terminated and the interface is once again in the idle condition.

Table 5 outlines the lineside T1’s A and B bit settings in each state of call processing.

Table 5 Ground Start Call Processing A/B Bit Settings (Part 1 of 2)

Transmit Receive

State

Idle 1 1 0 1

Incoming Calls (to terminal equipment):

•Idle 1 1 0 1

• Ringing is applied from lineside T1 card by simulating ground on tip lead and ringing on ring lead.

553-3001-211 Standard 3.00 August 2005

A B A B

0 0/1 0 1

Table 5 Ground Start Call Processing A/B Bit Settings (Part 2 of 2)

Overview Page 55 of 906

Transmit Receive

State

• Terminal equipment goes off-hook by simulating ground on tip lead and ringing on ring lead.

Outgoing Calls (from terminal equipment):

•Idle 1 1 0 1

• Terminal equipment goes off-hook. 1 1 0 0

• The lineside T1 simulates grounding its tip lead 0 1 0 0

• Terminal equipment opens ring ground and closes loop 0 1 1 1

Call Disconnect from far end:

• Steady state (call in progress) 0 1 1 1

• The lineside T1 ungrounds tip 1 1 1 1

• Terminal equipment opens loop current 1 1 0 1

Call disconnect from terminal equipment:

• Steady state (call in progress) 0 1 1 1

• Terminal equipment goes open loop current 0 1 0 1

• Lineside T1 card opens tip ground 1 1 0 1

A B A B

0 0/1 1 1

Ground Start Restrictions

If the lineside T1 card is used in ground start mode, certain restrictions should be considered. Because the system treats the lineside T1 card as a standard loop start analog line card, the ground start operation of the lineside T1 card has operational limitations compared to typical ground start interface equipment relating to start of dialing, distant end disconnect and glare potential.

Circuit Card Description and Installation

Page 56 of 906 Overview

Distant end disconnect restrictions

If the SAL feature is not available in the CS 1000 Release 4.5 software, the lineside T1 card is not capable of indicating to the Customer Premise Equipment (CPE) when a call has been terminated by the distant end. In this case, the lineside T1 card will continue to provide a grounded tip indication (A=0) to the CPE until it detects an open loop indication (A=0) from the CPE, at which time it will provide an open tip indication (A=1). Therefore, without SAL software, the lineside T1 card is not capable of initiating the termination of a call to the CPE.

With the SAL software configured for each lineside T1 line, the lineside T1 card will provide an open tip indication to the CPE when it receives an indication of supervised analog line from the system. This provides normal ground start protocol call termination.

Glare restrictions

In telephone lines or trunks, glare occurs when a call origination attempt results in the answering of a terminating call that is being presented by the far end simultaneously with the call origination attempt by the near end.

The lineside T1 detects presentation of a terminating call (outgoing to lineside T1 terminal equipment) by detecting ringing voltage. If application of the ringing voltage is delayed due to traffic volume and ringing generator capacity overload, the lineside T1 ground start operation cannot connect the tip side to ground to indicate the line has been seized by the system.

In ground start mode, glare conditions need to be considered if both incoming and outgoing calls to the Customer Premise Equipment (CPE) are going to be encountered. If the system and the CPE simultaneously attempt to use a lineside T1 line, the system will complete the call termination. It does not back down and allow the CPE to complete the call origination, as in normal ground start operation.

If both incoming and outgoing calls are to be handled through the lineside T1 interface, separate channels should be configured in the system and the CPE for each call direction. This eliminates the possibility of glare conditions on call origination.

553-3001-211 Standard 3.00 August 2005

Voice frequency audio level

The digital pad for lineside T1 card audio level is fixed for all types of call connection (0 dB insertion loss in both directions), and differs from the analog line. Audio level adjustments, if required, must be made in the lineside T1 terminal equipment.

Off-premise line protection

Off-premise applications are installations where the telephone lines are extended outside the building where the PBX system is housed, but the lines are not connected to public access facilities. This application is commonly referred to as a “campus installation.”

In off-premise applications, special protection devices and grounding are required to protect PBX and telephone components from any abnormal conditions, such as lightning strikes and power line crosses.

The NT1R20 Off-Premise Station Line card has built-in protection against lightning strikes and power line crosses. These should be the preferred cards for an off-premise application. Other cards can be used when external line protectors are installed.

Overview Page 57 of 906

When using the lineside T1 card for an off-premise or network application, external line protectors must be installed. Install an isolated type Channel Service Unit (CSU) as part of the terminal equipment, to provide the necessary isolation and outside line protection. The CSU should be an FCC part 68 or CSA certified unit.

Line protectors

Line protectors are voltage-absorbing devices that are installed at the cross-connect terminals at both the main building and the remote building. The use of line protectors will ensure that system and telephone components are not damaged from accidental voltages that are within the limit of the capacity of the protection device. Absolute protection from lightning strikes and other stray voltages cannot be guaranteed, but the use of line protection devices significantly reduces the possibility of damage.

Circuit Card Description and Installation

Page 58 of 906 Overview

Nortel has tested line protection devices from three manufacturers. See Table 6. Each manufacturer offers devices for protection of digital as well as analog telephone lines.

Table 6 Line protection device ordering information

Device order code

Analog

Line

UP2S-235 UP2S-75 ITW Linx Communication

6AP 6DP Oneac Corporation

ESP-200 ESP-050 EDCO Inc. of Florida

Digital

Line

Manufacturer

201 Scott Street

Elk Grove Village, IL 60007

(708) 952-8844 or (800) 336-5469

27944 North Bradley Road

Libertyville, IL 60048-9700

(800) 553-7166 or (800) 327-8801 x555

1805 N.E. 19th Avenue

P.O. Box 1778

Ocala, FL 34478

(904) 732-3029 or (800) 648-4076

These devices are compatible with 66 type M1-50 split blocks or equivalent. Consult the device manufacturer if more specific compatibility information is required.

Line protection grounding

In conjunction with line protectors, proper system (PBX) grounding is essential to minimize equipment damage. Nortel recommends following the

553-3001-211 Standard 3.00 August 2005

grounding connection requirements as described in System installation (553-3001-210). This requirement includes connecting the ground for the protection devices to the approved building earth ground reference. Any variances to these grounding requirements could limit the functionality of the protection device.

Line and telephone components

Because testing of the line protectors was limited to the line cards and telephones shown below, only these components should be used for off-premise installations.

Telephones

• Meridian Modular Telephones (digital)

• Meridian Digital Telephones

• Standard analog (500/2500-type) telephones

Line cards

• NT1R20 Off-Premise Station Line card

• NT8D02 Digital Line card

Overview Page 59 of 906

Trunk cards

• NT8D03 Analog Line card

The following trunk cards are designed using the IPE architecture, and are recommended for use in all new system designs.

Circuit Card Description and Installation

Page 60 of 906 Overview

Each of the trunk cards was designed to fit a specific system need. Use Table 7 to help select the trunk card that will best meet system needs.

Table 7 Trunk card characteristics

Part Number

Description Trun ks Trunk Types Architecture

NT8D14 Universal Trunk card 8 CO/FX/WATS trunks*,

direct inward dial trunks, TIE trunks, Loop Dial Repeating trunks Recorded Announcement trunks, Paging trunks

NT8D15 E&M Trunk card 4 2-wire E&M trunks,

4-wire E&M trunks, 4-wire DX trunks, Paging trunks

NTCK16 Generic Central Office

Trunk card

* Central office (CO), Foreign Exchange (FX), and Wide Area Telephone Service (WATS) trunks.

8 CO trunks IPE

NT8D14 Universal Trunk card

The NT8D14 Universal Trunk card is an intelligent four-channel trunk card that is designed to be used in a variety of applications. It supports the following five trunk types:

• Central office (CO), Foreign Exchange (FEX), and Wide Area Telephone Service (WATS) trunks

IPE

• Direct Inward Dial (DID) trunks

• TIE trunks: two-way Loop Dial Repeating (LDR) and two-way loop Outgoing Automatic Incoming Dial (OAID)

• Recorded Announcement (RAN) trunks

• Paging (PAG) trunks

553-3001-211 Standard 3.00 August 2005

Overview Page 61 of 906

The universal trunk card also supports Music, Automatic Wake Up, and Direct Inward System Access (DISA) features.

NT8D15 E&M Trunk card

The NT8D15 E&M Trunk card is an intelligent four-channel trunk card that is designed to be used when connecting to the following types of trunks:

• 2-wire E&M Type I signaling trunks

• 4-wire E&M trunks with:

— Type I or Type II signaling

— Duplex (DX) signaling

• Paging (PAG) trunks

The trunk type and function can be configured on a per port basis. Dialing outpulsing is provided on the card. Make and break ratios are defined in software and downloaded by software commands.

NTCK16 Generic Central Office Trunk card

The NTCK16 generic central office trunk cards support up to eight analog central office trunks. They can be installed in any IPE slot that supports IPE. The cards are available with or without the Periodic Pulse Metering (PPM) feature. The cards are also available in numerous countries.

Installation

This section provides a high-level description of how to install and test trunk cards.

IPE trunk cards can be installed in any IPE slot of the NT8D37 IPE module. Figure 10 on page 62 shows where an IPE trunk card can be installed in an NT8D37 IPE module.

When installing trunk cards, these general procedures should be used:

1 Configure the jumpers and switches on the trunk card (if any) to meet the

system needs.

2 Install the trunk card into the selected slot.

Circuit Card Description and Installation

Page 62 of 906 Overview

Figure 10 IPE trunk cards installed in an NT8D37 IPE module

IPEPE Module

PE Pwr Sup Rng Gen

3 Install the cable that connects the backplane connector on the IPE

module to the module I/O panel.

4 Connect a 25-pair cable from the module I/O panel connector to the Main

Distribution Frame (MDF).

5 Connect the trunk card output to the selected terminal equipment at the

MDF.

6 Configure the individual trunk interface unit using the Trunk

Administration program (LD 14) and the Trunk Route Administration program (LD 16).

Intelligent line cards

Intelligent trunk cards

BRSC

0 2 3 4 5 6 7 Cont 9 11 12 13 15181410

Intelligent line cards

Intelligent trunk cards

NT8D01 Controller Card

Intelligent Peripheral Equipment

BRSC

Superloop

Shelf

553-6321

Once these steps have been completed, the trunk card is ready for use.

553-3001-211 Standard 3.00 August 2005

Operation

This section describes how trunk cards fit into the CS 1000S, CS 1000M, and Meridian 1 architecture, the buses that carry signals to and from the trunk cards, and how they connect to terminal equipment. See Table 8 for IPE parameters.

Host interface bus

Cards based on the IPE bus have a built-in microcontroller. The IPE microcontroller is used for the following:

• to perform local diagnostics (self-test)

• to configure the card according to instructions issued by the system processor

• to report back to the system processor information such as card identification (type, vintage, and serial number), firmware version, and programmed configuration status.

Table 8 Differences between IPE parameters

Parameter IPE

Overview Page 63 of 906

Card Dimensions 31.75 x 25.4 x 2.2 cm. (12.5 x10.0 x 0.875 in.)

Network Interface DS-30X Loops

Communication Interface card LAN Link

Microcontroller 8031

Peripheral Interface card NT8D01 Controller card

Network Interface card NT8D04 Superloop Network card

Modules NT8D37 IPE module

Intelligent Peripheral Equipment

IPE trunk cards all have a similar architecture. Figure 11 on page 64 shows a typical IPE trunk card architecture. The various trunk cards differ only in the number and types of trunk interface units.

Circuit Card Description and Installation

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Figure 11 Typical IPE trunk card architecture

Back-

plane

Con-

troller

card

Front panel

LED

Card slot

address

Async card

5.12 MHz

frame sync

LAN link

Tx PCM Rx PCM

clock

1 kHz

Input/output

interface

control

Micro-

controller

Card LAN

interface

DS-30X

interface

PCM

Address/ data bus

PCM

Signaling

and status

Codec

Trunk

signaling

interface

Trunk

Interface

Unit

Trunk

Interface

Unit

Trunk interface unit power

Tip

Ring

Trunk lines

Tip

Ring

Trunk lines

Control

logic

Power Supplies

553-3001-211 Standard 3.00 August 2005

553-6156

Overview Page 65 of 906

The switch communicates with IPE modules over two separate interfaces. Voice and signaling data are sent and received over DS-30X loops and maintenance data is sent over a separate asynchronous communication link called the card LAN link.

Signaling data is information directly related to the operation of the telephone line. Some examples of signaling commands are as follows:

• off hook/on hook

• ringing signal on/off

• message waiting lamp on/off

Maintenance data is data relating to the configuration and operation of the IPE card, and is carried on the card LAN link. Some examples of maintenance data are as follows:

• polling

• reporting of self-test status

• CPU initiated card reset

• reporting of card ID (card type and hardware vintage)

• reporting of firmware version

• downloading trunk interface unit configuration

• reporting of trunk interface unit configuration

• enabling/disabling of the DS-30X network loop bus

• reporting of card status

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DS-30X loops

The interfaces provided by the line and trunk cards connect to conventional 2-wire (tip and ring) line facilities. IPE analog line and trunk cards convert the incoming analog voice and signaling information to digital form, and route it to the Common Equipment (CE) CPU over DS-30X network loops. Conversely, digital voice and signaling information from the CPU is sent over DS-30X network loops to the analog line and trunk cards where it is converted to analog form and applied to the line or trunk facility.

IPE digital line cards receive the data from the digital phone terminal as 512 kHz Time Compressed Multiplexed (TCM) data. The digital line card converts that data to a format compatible with the DS-30X loop, and transmits it in the next available timeslot. When a word is received from the DS-30X loop, the digital line card converts it to the TCM format and transmits it to the digital phone terminal over the digital line facility.

A separate dedicated DS-30X network loop is extended between each IPE line/trunk card and the controller cards within an IPE module (or the controller circuits on a network/DTR card in a CE module). A DS-30X network loop is composed of two synchronous serial data buses. One bus transports in the transmit (Tx) direction toward the line facility and the other in the receive (Rx) direction toward the common equipment.

Each bus has 32 channels for pulse code modulated (PCM) voice data. Each channel consists of a 10-bit word. See Figure 12 on page 67.

Eight of the 10 bits are for PCM data, one bit is the call signaling bit, and the last bit is a data valid bit. The 8-bit PCM portion of a channel is called a timeslot. The DS-30X loop is clocked at 2.56 Mbps (one-half the 5.12 MHz clock frequency supplied by the controller card). Thus, the timeslot repetition rate for a single channel is 8 kHz. The controller card also supplies a locally generated 1 kHz frame sync signal for channel synchronization.

553-3001-211 Standard 3.00 August 2005

Figure 12 DS-30X loop data format

Overview Page 67 of 906

DS-30X loop

data words

Frame

sync

5.12 MHz

2.56 MHz

Frame sync

DS-30X loop

data bits

W0B7W31DV

SB = SIGNALING BIT DV = DATA VALID

30 31 0 1 2 3 4

W0B6 W0B5 W0B4 W0B3 W0B2 W0B1 W0B0 W0SB W0DV W1B7

553-6151

signaling data to the line card, it is sent as a 24-bit word divided among 24 successive DS-30X frames.

DS-30Y network loops extend between controller cards and superloop network cards in the common equipment, and function in a manner similar to DS-30X loops. See Figure 13 on page 68.

Essentially, a DS-30Y loop carries the PCM timeslot traffic of a DS-30X loop. Four DS-30Y network loops form a superloop with a capacity of 128 channels (120 usable timeslots).

See Communication Server 1000M and Meridian 1: Large System Planning and Engineering (553-3021-120) for more information on superloops.

Card LAN link

Maintenance communication is the exchange of control and status data between IPE line or trunk cards and the CE CPU by way of the NT8D01 Controller Card. Maintenance data is transported via the card LAN link. This

Circuit Card Description and Installation

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Figure 13 Network connections to IPE modules

Equipment (Network)

DS-30Y

NT8D04

loop

Superloop

Network

Card

NT8D37 IPE ModuleCommon

Controller

NT8D01

Card

NT8D14 Universal Trunk Card

DS-30X

NT8D15 E&M Trunk Card

NT8D13 PE Module

Large

System

Network

QPC414

Network

Card

loop

QPC659 Dual-Loop Peripheral

Buffer Card

553-3001-211 Standard 3.00 August 2005

QPC71 E&M Signaling and Paging Trunk Card

QPC74 Recorded Announcement Trunk Card

QPC250 Release Link Trunk Card

QPC449 Loop Signaling Trunk Card

553-6158

Overview Page 69 of 906

link is composed of two asynchronous serial buses (called the Async card LAN link in Figure 11 on page 64). The output bus is used by the controller for output of control data to the trunk card. The input bus is used by the controller for input of trunk card status data.

A card LAN link bus is common to all of the line/trunk card slots within an IPE module (or IPE section of a CE module). This bus is arranged in a master/ slave configuration where the controller card is the master and all other cards are slaves. The module backplane provides each line/trunk card slot with a unique hardwired slot address. This slot address enables a slave card to respond when addressed by the controller card. The controller card communicates with only one slave at a time.

In normal operation, the controller card continually scans (polls) all of the slave cards connected to the card LAN to monitor their presence and operational status. The slave card sends replies to the controller on the input bus along with its card slot address for identification. In this reply, the slave informs the controller if any change in card status has taken place. The controller can then prompt the slave for specific information. Slaves only respond when prompted by the controller; they do not initiate exchange of control or status data on their own.

When an IPE line or trunk card is first plugged into the backplane, it runs a self-test. When the self test is completed, a properly functioning card responds to the next controller card poll with the self-test status. The controller then queries for card identification and other status information. The controller then downloads all applicable configuration data to the line/ trunk card, initializes it, and puts it into an operational mode.

The network card regularly polls the IPE cards during TS0 to see if any of them has a message to be sent. When an IPE card has a message waiting it responds to the poll by sending a series of 1s during the next five successive timeslot 0s. The network card responds by sending a “message send enable” message (all 1s). The IPE card replies by sending 1, 1, 1, 0, and then the message in successive timeslot 0s.

Trunk interface unit

Once the 8-bit digital voice signal has been received by the trunk card, it must be converted back into an analog signal, filtered, and driven onto the analog

Circuit Card Description and Installation

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trunk line through an impedance matching and balance network. The trunk interface also includes the logic necessary to place outgoing call signaling onto the trunk, or the logic to connect to special services such as recorded announcement and paging equipment.

Figure 14 shows a typical example of the logic that performs these functions. Each part of the trunk interface unit is discussed in the following section.

Figure 14 Typical trunk interface unit block diagram

DS-30X

Network loop

TS0

Variable gain

CODEC

Signaling

logic

filters

2-wire

4-wire

conversion

and balance network

Isolation

transformer

Tip

Interface

(protection)

Ring

Signaling

leads

(E&M,

DX, etc.)

553-6159

Coder/Decoder circuit

The coder/decoder (codec) performs Analog to Digital (A/D) and Digital to Analog (D/A) conversion of the line analog voiceband signal to and from a digital PCM signal. This signal can be coded and decoded using either the A-Law or the µ-Law companding algorithm. On some trunk cards the decoding algorithm depends of the type of codec installed when the board is built. On others, it is an option selected using a software overlay.

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Overview Page 71 of 906

Variable gain filters

Audio signals received from the analog phone trunk are passed through a low-pass A/D monolithic filter that limits the frequency spread of the input signal to a nominal 200–3400 Hz bandwidth. The audio signal is then applied to the input of the codec. Audio signals coming from the CODEC are passed through a low-pass A/D monolithic filter that integrates the amplitude modulated pulses coming from the CODEC, and then filters and amplifies the result.

On some of the trunk cards, the gain of these filters can be programmed by the system controller. This allows the system to make up for line losses according to the loss plan.

Balancing network

Depending on the card type, the balancing network is capable of providing either a 600 ohm or a 900 ohm (or both) impedance matching network. It also converts the 2-wire transmission path (tip and ring) to a 4-wire transmission path (Rx/ground and Tx/ground). The balancing network is a transformer/ analog (hybrid) circuit combination.

Signaling circuits

Signaling circuits are relays that place outgoing call signaling onto the trunk. Signal detection circuits monitor the incoming call signaling.

Control signals

Control signals and logic are provided when the trunk is going to be connected to special services such as recorded announcement and paging equipment.

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Serial Data Interface (SDI) cards

The NT8D41BA QSDI paddle board provides four bidirectional asynchronous serial ports for the system processor, and the QPC841 QSDI card also provides four. Any device that conforms to the RS-232-C serial communication standard can be connected to these serial ports.

The QPC513 ESDI card provides two fully synchronous serial ports for the system processor. The ESDI card communicates using the Link Access Procedure Balanced (LAP-B) synchronous communication protocol.

The electrical interface uses either standard RS-232-C signals or a special high-speed interface that combines the high-speed differential interface of the RS-422-A standard with the handshake signals of the RS-232-C standard.

The RS-232-C interface is normally used when data rates are less than 19.2 Kbps, and the cable length is less than 15.24 m (50 ft). The high-speed interface is used when the signal rates are greater than 19.2 kbps (up to 64 kbps) and/or when the cable length is greater than 15.24 m (50 ft).

Table 9 shows compatibility between the three SDI cards and the various switch options.

Table 9 Serial data interface cards

Compatible System Options

Card Ports Port types 51C, 61C 81C

NT8D41BA 4 RS-232-C asynchronous X X

QPC841 4 RS-232-C asynchronous X X

QPC513 2 RS-232-C synchronous or

high-speed synchronous*

*See the section on the QPC513 card in this manual for details on the high-speed interface

X X

The NT8D41BA QSDI paddle board does not have a front panel. It mounts to the rear of the backplane in the NT5D21 Core/Network module, and does

553-3001-211 Standard 3.00 August 2005

Uses

Overview Page 73 of 906

not consume a module slot. The RS-232-C connections are brought out through special cables to the backplane I/O panel.

The QPC841 Quad SDI card and the QPC513 Enhanced SDI card mount in standard backplane slots, and their serial interface connectors are located on the card front panels. A list of the modules that they can be mounted in is given in the following sections on the individual cards.

Examples of asynchronous devices that can be connected to the system processor using the NT8D41BA QSDI paddle board and the QPC841 Quad SDI card are:

• an administration and maintenance terminal

• a background terminal for use in a hotel/motel

• the Automatic Call Distribution (ACD) feature

• the Call Detail Recording (CDR) feature

Examples of synchronous devices that can be connected to the system processor using the QPC513 Enhanced SDI card are:

Features

• a host computer (DEC, Tandem, for example) using the Meridian Link communication program

• the Meridian Mail voice-mail option

The NT8D41 QSDI paddle board and the QPC841 QSDI card provide the following features:

• asynchronous serial data interface ports, each supporting

— RS-232-C interface

— 8–bit ASCII data with parity and stop bit

— Asynchronous, start-stop operation

— Data rates of 150, 300, 600, 1200, 2400, 4800, and 9600 baud

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— Data terminal equipment (DTE) emulation mode

— Data communication equipment (DCE) emulation mode

• enable/disable switch and LED

• input/output (I/O) device address selectable by on-board switches.

The QPC513 ESDI card provides these features:

• fully synchronous serial data interface ports, each supporting

— RS-232-C or modified RS-422-A interface

— LAPB subset of the HDLC synchronous protocol

— Data rates of 1200, 2400, 4800, 9600, 19200, 48000, 56000, and

— Data terminal equipment (DTE) emulation mode

— Data communication equipment (DCE) emulation mode

• enable/disable switch and LED

• input/output (I/O) device address selectable by on-board switches.

64000 baud

Specifications

This section lists the specifications shared by all of the SDI cards. See the appropriate section in this document for information specific to any particular card.

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Overview Page 75 of 906

Power consumption

The SDI cards obtain their power directly from the module backplane. Power consumption for each of the cards is shown in Table 10.

Table 10 Power consumption

Maximum power consumption

Voltage

+5 VDC ±5% 1.0 Amp 3.0 Amp 1.5 Amp

+12 VDC ±5% 100 mA 50 mA 100 mA

–12 VDC ±5% 100 mA 50 mA 100 mA

NT8D41BA QPC513 QPC841

Environmental

The SDI cards operate without degradation under the conditions listed in Table 11.

Table 11 Environmental specifications

Specification Operation Storage

Ambient temperature 0° to 50°C;

(32° to 122°F)

Relative humidity

(non-condensing)

Altitude 3500m;

5% to 95% 0% to 95%

(11000 ft)

–55° to +70°C;

(–58° to 158°F)

15000m;

(50000 ft)

Electrostatic discharge

The SDI cards meet the requirements of the IEC 801-2, clause 8.0 procedure. They can withstand a direct discharge of ±5 to ±20 kV without being damaged.

Circuit Card Description and Installation

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Electromagnetic interference

The CS 1000S, CS 1000M, and Meridian 1 systems meet the requirements of FCC Part 15 and CSA C108.8 electromagnetic interference (EMI) standards as a class “A” computing device. To accomplish this, the SDI cables must exit the module through EMI filters on the I/O panel.

Reliability

The Mean Time Between Failure (MTBF) for all SDI cards is 55 years at 40°C and 29 years at 55°C.

Installation

To use a serial data interface card in a CS 1000S, CS 1000M, or Meridian 1 system, first install the card in the system, and then configure the system software to recognize it. These steps are discussed in the following sections.

Instructions for cabling the serial data interface cards to the various system consoles and peripherals are found in Communication Server 1000M and Meridian 1: Large System Installation and Configuration (553-3021-210).

Configuring the system software

Once an SDI card has been installed in the system, the system software needs to be configured to recognize it. This is done using the Configuration Record program LD 17. Instructions for the Configuration Record program are found in Software Input/Output: Administration (553-3001-311).

Maintenance

The following maintenance programs are used to maintain individual SDI asynchronous ports. The program used depends on the application of the port.

• LD 37 Input/Output Diagnostics – Used for system terminal, printer, background terminal ports, and system monitor status.

• LD 42 Call Detail Recording (CDR) Diagnostic – For checking CDR links and CDR system terminals.

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Overview Page 77 of 906

The following maintenance program is used to maintain individual SDI synchronous ports.

• LD 48 Link Diagnostic – For checking Automatic Call Distribution (ACD) and Meridian Link ports.

Instructions for running the various maintenance programs are found in Software Input/Output: Administration (553-3001-311). System messages are interpreted in Software Input/Output: System Messages (553-3001-411).

Circuit Card Description and Installation

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Circuit card installation

This section contains information on the following topics:

Card slots — Large System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Circuit card installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Installing a circuit card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Card slots — Large System

The following table in this chapter identifies card slot compatibility in the following modules:

• NT4N41 Core/Network module required for CS 1000M SG, CS 1000M MG, Meridian 1 PBX 61C Call Processor (CP) PII, CP PIV, and Meridian 1 PBX 81C

• NT4N46 Core/Network module required for CS 1000M MG and Option 81C CP PII, CP PIV

• NT6D60 Core/Network module required for the CS 1000M MG and Option 81C only

• NT8D35 Network module required for CS 1000M MG and Meridian 1 PBX 81C

• NT8D37 Intelligent Peripheral Equipment (IPE) module required for CS 1000M HG, CS 1000M SG, CS 1000M MG, Meridian 1 Option 51, Meridian 1 PBX 61C, and Meridian 1 PBX 81C

Circuit Card Description and Installation

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Circuit card installation

Table 12 Large System card slots (Part 1 of 4)

Component Large System

A0786611 Call Processor Pentium II® card 81C Core/Net: “CP”

A0810486 Call Processor Pentium II 81C Core/Net: “CP”

NT1P61 Fiber Superloop Network card Core/Net: 0–7

NT1P62 Fiber Peripheral Controller card IPE: “Contr”

NT1R52 Remote Carrier Interface IPE: “Contr”

NT1R20 Off-Premise Station IPE: any slot but “Contr”

NT4D18 Hybrid Bus Terminator Core/Net: between 11 and 12

NT4D19 and NT423 Hybrid Bus Terminator Core/Net: between 0 and 1

NT4D20 and NT422 Hybrid Bus Terminator Core/Net: between 1 and 2

NT4N43 Multi-Medium DIsk Unit 81C Core/Net:

NT4N64 Call Processor Pentium II card 61C Core/Net: CP PII

NT4N64 Call Processor Pentium II card 81C Core/Net: CP PII

NT4N39 Call Processor Pentium IV card 61C Core/Net: CP PIV

NT4N39 Call Processor Pentium IV card 81C Core/Net: CP PIV

NT4N65 cPCI® Core to Network Interface card 81C Core/Net: c9–c12

NT4N66 cPCI Core to Network Interface Transition card

NT4N67 System Utility card 81C Core/Net: c15

NT4N68 System Utility Transition card 81C Core/Net cPCI Core backplane:

NT5D11 and NT5D14 Line side T1 Line card

NT5D12AA Dual DTI/PRI card Core/Net: 0–7

NT5D61 Input/Output Disk Unit with CD-ROM (MMDU)

81C Core/Net cPCI Core backplane: 9–12

IPE: any slot but “Contr”

61C Core/Net: 17, 18 and 19

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Circuit card installation Page 81 of 906

Table 12 Large System card slots (Part 2 of 4)

Component Large System

NT5K02 Analog Line card IPE: any slot but “Contr”

NT5K07 Universal Trunk card IPE: any slot but “Contr”

NT5K17 Direct Dial Inward Trunk card IPE: any slot but “Contr”

NT5K18 Central Office Trunk card IPE: any slot but “Contr”

NT5K19 E&M Trunk card IPE: any slot but “Contr”

NT5K35 D-channel Handler Interface Core/Net: 0-7

NT5K36 Direct Inward/Direct Outward Dial Trunk card

NT5K70 Central Office Trunk card IPE: any slot but “Contr”

NT5K71 Central Office Trunk card IPE: any slot but “Contr”

NT5K72 E&M Trunk card IPE: any slot but “Contr”

NT5K82 Central Office Trunk card IPE: any slot but “Contr”

NT5K83 E&M Trunk card IPE: any slot but “Contr”

NT5K84 Direct Inward Dial Trunk card IPE: any slot but “Contr”

NT5K90 Central Office Trunk card IPE: any slot but “Contr”

NT5K93 Central Office Trunk card IPE: any slot but “Contr”

NT5K96 Analog Line card IPE: any slot but “Contr”

NT5K99 Central Office Trunk card IPE: any slot but “Contr”

NT5K20 Extended Tone Detector IPE: any slot but “Contr”

NT6D65 Core to Network Interface 61C Core/Net: 12

NT6D66 Call Processor card 61C Core/Net: 15 and 16

NT6D70 S/T Interface Line card

Net: 5-12

IPE: any slot but “Contr”

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Table 12 Large System card slots (Part 3 of 4)

Component Large System

NT6D71 U Interface Line card

NT6D72 Basic Rate Signal Concentrator card

NT6D73 Multi-purpose ISDN Signaling Processor card

NT6D80 MSDL Core/Net: 0–7

NT7D16 Data Access card IPE: any slot but “Contr”

NT7R51 Local Carrier Interface Core/Net: 0–7

NT8D01 Controller card IPE: “Contr”

NT8D02 Digital Line card IPE: any slot but “Contr”

NT8D04 Superloop Network card Core/Net: 0–7

NT8D09 Analog Message Waiting Line card IPE: any slot but “Contr”

NT8D14 Universal Trunk card IPE: any slot but “Contr”

NT8D15 E&M Trunk card IPE: any slot but “Contr”

NT8D16 Digitone Receiver card IPE: any slot but “Contr”

NT8D17 Conference/TDS card Core/Net: 0–7

NT8D41 Dual Port Serial Data Interface card Serial Port back of Core/Net module

IPE: any slot but “Contr”

Core/Net: 0–7

Net: 5-12

NT9D19 Call Processor card 61C Core/Net: 15 and 16

NTAG03 Central Office Trunk card IPE: any slot but “Contr”

NTAG04 Central Office/Direct Inward Dial Trunk card

NTAG36 Nortel Integrated Recorded Announcer IPE: any slot but “Contr”

NTBK51 Downloadable D-channel daughterboard Connects to DDP card

NTCK16 Generic Central Office Trunk card IPE: any slot but “Contr”

IPE: any slot but “Contr”

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Circuit card installation Page 83 of 906

Table 12 Large System card slots (Part 4 of 4)

Component Large System

NTCK43AA Primary Rate Interface card Core/Net: 0-7

NTRB33 FIber Junctor Interface card For 81C: Core/Net: 8 and 9, Net module: 2 and 3

NTRE39 Optical Cable Management card For 81C: Net module: the slot to the right side of 14,

QPC43 Peripheral Signaling card Core/Net: 10

QPC71 E&M/DX Trunk card IPE: any slot but “Contr”

QPC414 Network card Core/Net: 0–7

QPC441 3-Port Extender card Core/Net: 11

QPC471 Clock Controller card 61C Core/Net: 9

QPC513 Enhanced Serial Data Interface card Core/Net: 9, 13

QPC578 Integrated Services Digital Line card IPE: any slot but “Contr”

QPC659 Dual Loop Peripheral Buffer card IPE: “DLB”

QPC720 Primary Rate Interface card Core/Net: 0–7

Net: 5-11, 13-14

the slot to the left of the 3PE in slot 1

Net: 4

Net: 5-12

Net: 1

Net: 5 -12 For 81C, use NT8D35 Net slot 13; in QSD39 shelf, use Net slot 2; in QSD40 shelf, use slot 13

Net: 5–11, 13–14

QPC775 Clock Controller 61C Core/Net: slot 14.

QPC789 16-Port 500/2500 Message Waiting Line card

QPC841 4-Port Serial Data Interface card Core/Net: 0-7

For 81C use NT8D35 Net slot 13; in QSD39 shelf, use Net slot 2; in QSD40 shelf, use slot 13.

IPE: any slot but “Contr”

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Precautions

To avoid personal injury and equipment damage, review the following guidelines before handling system equipment.

WAR NING

Module covers are not hinged; do not let go of the covers. Lift covers away from the module and set them out of your work area.

WAR NING

Circuit cards may contain a lithium battery. There is a danger of explosion if the battery is incorrectly replaced. Do not replace components on any circuit card; you must replace the entire card.

Dispose of circuit cards according to the manufacturer’s instructions.

To avoid damage to circuit cards from static discharge, wear a properly connected antistatic wrist strap when you work on system equipment. If a wrist strap is not available, regularly touch one of the bare metal strips in a module to discharge static. Figure 15 on page 85 shows the recommended connection points for the wrist strap and the bare metal strips you should touch.

Handle circuit cards as follows:

• Unpack or handle cards away from electric motors, transformers, or similar machinery.

• Handle cards by the edges only. Do not touch the contacts or components.

• Set cards on a protective antistatic bag. If an antistatic bag is not available, hand-hold the card, or set it in a card cage unseated from the connectors.

• Store cards in protective packing. Do not stack cards on top of each other unless they are packaged.

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Circuit card installation Page 85 of 906

• Keep cards installed in the system as much as possible to avoid dirty contacts and unnecessary wear.

• Store cards in a cool, dry, dust-free area.

Figure 15 Static discharge points

Module

rear

Wrist strap

connection point

Power supply slot

Bare metal strip

Wrist strap

connection point

Module

front

Bare metal strip

553-5000

During repair and maintenance procedures do the following:

• Turn off the circuit breaker or switch for a module power supply before the power supply is removed or inserted.

• In AC-powered systems, capacitors in the power supply must discharge. Wait five full minutes between turning off the circuit breaker and removing the power supply from the module.

• Software disable cards, if applicable, before they are removed or inserted.

Circuit Card Description and Installation

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• Hardware disable cards, whenever there is an enable/disable switch, before they are removed or inserted.

• Return defective or heavily contaminated cards to a repair center. Do not try to repair or clean them.

Installing a circuit card

This procedure provides detailed installation instructions for circuit cards.

DANGER

To avoid personal injury and equipment damage, read all of the guidelines in “Circuit card installation” on page 80 before you begin installation and follow all guidelines throughout the procedure.

Procedure 1 Installation

1 Open the protective carton and remove the circuit card from the antistatic

bag. Return the antistatic bag to the carton and store it for future use.

2 Inspect the card components, faceplate, locking devices, and connectors

for damage. If damaged, tag the card with a description of the problem and package it for return to a repair center.

3 Refer to the work order to determine the module and slot location for the

card.

4 If there is an enable/disable (Enb/Dis) switch on the faceplate, set it to Dis.

5 If there are option switches or jumpers on the card, set them according to

the work order (see “Option settings” on page 101).

CAUTION

System Failure

Incorrectly set switches on common equipment circuit cards may cause a system failure.

6 Squeeze the ends of the locking devices on the card and pull the tabs

away from the latch posts and faceplate (see Figure 16).

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Figure 16 Installing the circuit card in the card cage

Card locking

device

Tab

Latch post

Circuit card installation Page 87 of 906

Edge of card cage

Card

guides

553-5002

7 Insert the card into the card aligning guides in the card cage. Gently push

the card into the slot until you feel resistance. The tip of the locking device must be behind the edge of the card cage (see Figure 16).

8 Lock the card into position by simultaneously pushing the ends of the

locking devices against the faceplate.

Note: When IPE cards are installed, the red LED on the faceplate remains lit for two to five seconds as a self-test runs. If the self-test completes successfully, the LED flashes three times and remains lit until the card is configured and enabled in software, then the LED goes out. If the LED does not follow the pattern described or operates in any other manner (such as continually flashing or remaining weakly lit), replace the card.

Circuit Card Description and Installation

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9 If there is an enable/disable switch, set it to Enb.

Note: Do not enable the switch on an NT8D04 Superloop Network card or QPC414 Network card until network loop cables are installed.

10 If you are adding a voice, conference, or tone and digit loop, press the

manual initialize (Man Int) button on the NT5D03 or the NT5D10 Call Processor if the card is associated with the active Call Processor:

Note: An initialization causes a momentary interruption in call processing.

11 If you are installing the card in a working system, refer to the work order

and the Software Input/Output: Administration (553-3001-311) to add the required office data to the system memory.

12 Go to the appropriate test procedure in “Acceptance tests” on page 89.

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100

Page 89 of 906

Acceptance tests

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

Conference cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Digitone receiver cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

Line cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

Multifrequency sender cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Multifrequency signaling cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Network cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Trunk cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Tone and digit switch cards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Introduction

Test procedures for most circuit cards require that internal and external cabling be installed. See the appropriate installation document for your system and Telephones and Consoles: Description, Installation, and Operation (553-3001-367) for cabling procedures.

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Conference cards

Procedure 2 Testing conference cards

Use this procedure to test a conference card or to test the conference function of an NT8D17 Conference/TDS card.

1 Log into the system:

LOGI (password)

2 Request the status of a loop on the conference card:

LD 38 STAT loop

Conference status is formatted as follows:

CNFC n DSBL n BUSY

“n” represents the number of conference groups disabled and busy

CHAN n DSBL n BUSY

“n” represents the number of channels disabled and busy

UNEQ

card is not equipped in the system

DSBL

card is disabled in software

3 If the conference card loop is disabled, enable it.

For an NT8D17 Conference/TDS card, enter: ENLX loop (the conference loop is the odd loop of the conference/TDS loop pair)

Note: The conference/TDS card is not enabled automatically when it is inserted. You must enable the card with the command ENLX. (This command is used in LD 34 and LD 46 to address even loops and in LD 38 to address odd loops.) Enabling the loops with the command ENLL does not enable the hardware for the card.

For other than an NT8D17 Conference/TDS card, enter: ENLL loop (the conference loop must be an even loop for cards other than the NT8D17)

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

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Acceptance tests Page 91 of 906

4 Test the conference loop for channel, group, and switching faults:

CNFC loop

If the conference loop passes the tests, the output is OK.

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

5 Prepare the system for a manual conference call on a specified loop:

CNFC MAN loop c

Where “c” is the manual conference group (1-15)

A manual conference test is performed by stepping through conference channels and groups, listening for noise that indicates a faulty card.

The manual conference test can be performed through a system terminal or BCS maintenance telephone. If commands are entered from a maintenance telephone, this telephone automatically becomes part of the manual conference call.

Only one manual conference call is allowed at one time. A manual conference consists of only two telephones, where one telephone acts as a signal source while the other acts as a listening monitor.

After you enter the CNFC command, any two telephones (one may already be the maintenance telephone) dialing the special service prefix code (SPRE) and the digits 93 will enter the manual conference call. The prime directory number (PDN) indicator, if equipped, will light on each telephone.

Going on-hook takes the telephone out of the manual conference call, and the test must be restarted.

See LD 38 in the Software Input/Output: Administration (553-3001-311) for more detailed information on using this command.

6 Test various channels and conference groups audibly with the command

CNFC STEP

When stepping through channels and groups, a clicking followed by silence is normal. Any distortion or other noises indicates a faulty card.

Once the CNFC STEP command has been entered, entering C on the system terminal or maintenance telephone steps through the conference channels. Entering G steps through the conference groups. There are 15 channels per group and 15 groups per conference card.

Entering an asterisk (*) and END stops the test.

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Again, see “LD 38” in the Software Input/Output: Maintenance (553-3001-511) for detailed information on using this command.

7 End the session in LD 38:

****

Digitone receiver cards

Procedure 3 Testing digitone receiver cards

Use this procedure to test a Digitone receiver (DTR) card, a DTR daughterboard, or the DTR function on the NT8D18 Network/DTR card.

Note: The DTR daughterboard connected to a QPC659 Dual Loop Peripheral Buffer card cannot be assigned when the IPE shelf is used in single loop mode.

1 Log into the system:

LOGI (password)

2 See if the Digitone receiver to be tested is disabled:

LD 34 STAT

The system responds with the terminal number (TN), or numbers, of any disabled Digitone receivers.

3 If the Digitone receiver is disabled, enable it:

ENLR l s c uloop, shelf, card, and unit numbers

End of Procedure

4 Test the Digitone receiver:

DTR l s c uloop, shelf, card, and unit numbers

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

5 End the session in LD 34:

****

553-3001-211 Standard 3.00 August 2005

End of Procedure

Line cards

Acceptance tests Page 93 of 906

Procedure 4 Testing line cards

Use this procedure to test a line card.

1 Log into the system:

LOGI (password)

2 Perform a network memory test, continuity test, and signaling test on a

specific loop and shelf:

LD 30 SHLF l sloop and shelf numbers

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

3 For a line card on a superloop, perform a signaling test on a specific card

or unit:

UNTT l s c loop, shelf, and card numbers

For the NT8D02 Digital Line card, enter: UNTT l s c u loop, shelf, card, and unit numbers

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

4 End the session in LD 30:

****

End of Procedure

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Multifrequency sender cards

Procedure 5 Testing multifrequency sender cards

Use this procedure to test a multifrequency sender (MFS) card or the MFS function of an NT8D17 Conference/TDS card.

1 Log into the system:

LOGI (password)

2 Test and enable an MFS loop:

LD 46 MFS loop

(on the NT8D17 Conference/TDS card, the TDS/MFS loop is the even loop of the conference/TDS loop pair)

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

3 Access the system from a maintenance telephone; then enter:

LD 46

Give the system approximately 20 seconds to load the program.

See “Communicating with the Meridian 1” in the Software Input/Output: Administration (553-3001-311) for details on accessing the system from a maintenance telephone.

4 Obtain 10-second bursts of digits 1 to 9, 0, and 11 to 15 (in that order) for

all digits on the specified loop:

TONE loop ALL

Each burst should sound different. If the bursts do not sound different, replace the card.

5 End the session in LD 46:

****

553-3001-211 Standard 3.00 August 2005

End of Procedure

Multifrequency signaling cards

Procedure 6 Testing multifrequency signaling cards

Use this procedure to test a multifrequency signaling card.

1 Log into the system:

LOGI (password)

2 Test and enable the specified unit:

LD 54 ATST l s c u loop, shelf, card, and unit numbers

If the system response is other than OK, see the Software Input/ Output: Administration (553-3001-311) to analyze the messages.

3 End the session in LD 54:

****

Network cards

Procedure 7 Testing network cards

Use this procedure to test a network card.

1 Log into the system:

LOGI (password)

2 Perform a network memory test, continuity test, and signaling test:

LD 30 LOOP loop can be a specific loop number or ALL

If ALL is specified, all enabled loops (except attendant console loops) and all shelves on each loop are tested.

Acceptance tests Page 95 of 906

End of Procedure

If only one loop is being tested and it is disabled, enter ENLL loop to enable and test a network card associated with the specified loop. (This command cannot enable network cards disabled by LD 32.)

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

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3 End the session in LD 30:

****

Trunk cards

Use the following procedures to test a trunk card.

Procedure 8 Testing a trunk card using a maintenance telephone

1 Access the system from a maintenance telephone.

See “Communicating with the Meridian 1” in the Software Input/Output: Administration (553-3001-311) for details on accessing the system from a

maintenance telephone.

2 Test the trunk unit:

LD 36 TRK l s c u loop, shelf, card, and unit numbers

3 If the maintenance telephone is hooked up to a monitor and the system

response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

End of Procedure

Procedure 9 Testing a trunk card using a system terminal

1 Log into the system:

LOGI (password)

2 Enter:

LD 36

3 To test a trunk from a remote test center, seize a central office (CO)

monitor trunk:

CALL

CALL l s c u

Seize the automatic number identification (ANI) trunk: TRK l s c u loop, shelf, card, and unit numbers

553-3001-211 Standard 3.00 August 2005

End of Procedure

When you see the DN? prompt, enter the directory number (DN) you want the system to dial.

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

4 End the session in LD 36:

****

5 Test an automatically identified outward dialing (AIOD) trunk card:

LD 41 AIOD l s c loop, shelf, and card numbers

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

6 End the session in LD 41:

****

Tone and digit switch cards

Procedure 10 Testing tone and digit switch cards

Use this procedure to test a tone and digit switch (TDS) card or to test the TDS function of an NT8D17 Conference/TDS card.

Acceptance tests Page 97 of 906

End of Procedure

1 Log into the system:

LOGI (password)

2 Obtain a list of terminal numbers (TNs) for disabled TDS cards:

LD 34 STAD

3 If the TDS loop to be tested is disabled, enable it.

For an NT8D17 Conference/TDS card, enter: ENLX loop (the TDS/MFS loop is the even loop of the conference/TDS loop pair)

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For other than an NT8D17 Conference/TDS card, enter:

ENLL loop

4 Test the TDS loop:

TDS loop

If the system response is other than OK, see the Software Input/Output: Administration (553-3001-311) to analyze the messages.

5 End the session in LD 34:

****

6 Using a maintenance telephone, log into the system.

See “Communicating with the Meridian 1” in the Software Input/Output: Administration (553-3001-311) for details on accessing the system using a maintenance telephone.

7 From the maintenance telephone, enter:

LD#34##

To test outpulsers and channels for the TDS loop, see Table 13 on

page 98 for a sample of the input commands used with the maintenance

telephone. See the Software Input/Output: Administration (553-3001-311) for all tones that can be tested.

8 Exit LD 34 from the maintenance telephone:

****

End of Procedure

Table 13 TDS tone tests

Dial pad

Input command

BSY#loop## 279#loop## Provides busy tone from TDS loop specified.

C## 2## Removes any active tone.

DIA#loop## 342#loop## Provides dial tone from TDS loop specified.

OVF#loop## 683#loop## Provides overflow tone from TDS loop specified.

RBK#loop## 725#loop## Provides ringback tone from TDS loop specified.

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equivalent

Description

Acceptance tests Page 99 of 906

Table 13 TDS tone tests

RNG#loop## 764#loop## Provides ring tone from TDS loop specified.

**** Exits TDS test program.

Circuit Card Description and Installation

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553-3001-211 Standard 3.00 August 2005

Nortel Networks Circuit Card User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Title page

Revision history

Contents

LIst of procedures

About this document

Subject

Applicable systems

Intended audience

Conventions

Related information

Overview

Contents

Line cards

Installation

Operation

Analog line interface units

Digital line interface units

Analog line call operation

Digital line call operation

Lineside T1 call operation

Voice frequency audio level

Off-premise line protection

Line protectors

Line protection grounding

Line and telephone components

Trunk cards

Installation

Operation

Host interface bus

Trunk interface unit

Serial Data Interface (SDI) cards

Uses

Features

Specifications

Installation

Maintenance

Circuit card installation

Contents

Circuit card installation

Precautions

Installing a circuit card

Acceptance tests

Contents

Introduction

Conference cards

Digitone receiver cards

Line cards

Multifrequency sender cards

Multifrequency signaling cards

Network cards

Trunk cards

Tone and digit switch cards