Nortel Networks 553-3001-211 manual NT8D09 Analog Message Waiting Line card, Contents

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NT8D09 Analog Message Waiting

Line card

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 535

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 537

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 546

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 549

Introduction

The NT8D09 Analog Message Waiting Line card is an IPE line card that can be installed in the NT8D37 IPE module.

The NT8D09 Analog Message Waiting Line card (µ-Law) provides talk battery and signaling for up to 16 regular 2-wire common battery analog (500/2500-type) telephones and key telephone equipment, with the Message Waiting lamp feature.

The NT8D09 Analog Message Waiting Line card is functionally identical to the NT8D03 Analog Line card, except it can also connect a high-voltage, low-current feed to each line to light the message waiting lamp on telephones equipped with the Message Waiting feature.

The analog message waiting line card mounts in any IPE slot.

Circuit Card Description and Installation