Nt8D09 Analog Message Waiting; Line Card; Contents; Introduction - Nortel Circuit Card Installation Manual

NT8D09 Analog Message Waiting

Line card

Contents

Introduction

This section contains information on the following topics:
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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
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