Nortel Networks 553-3001-211 manual NT8D15 E&M Trunk card, Contents

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NT8D15 E&M Trunk card

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 615

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 617

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 619

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 629

Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 640

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 642

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 646

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 652

Introduction

The NT8D15 E&M trunk card interfaces four analog telephone trunks to the switch. Each trunk interface connects to a trunk facility using tip and ring leads that carry voice, ringing, and tone signaling, and to signaling interfaces by E&M leads. Each unit can be configured independently by software control in the Trunk Data Block (or Trunk Administration) program LD 14.

You can install this card in any IPE slot.

Note: Up to four analog trunk cards are supported in each MG 1000S and four analog trunk cards in each MG 1000S Expansion.

Circuit Card Description and Installation