Nortel Networks 553-3001-211 manual NT8D14 Universal Trunk card, Contents

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NT8D14 Universal Trunk card

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 553

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 555

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 558

Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 561

Electrical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 597

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 602

Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 603

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 612

Introduction

Nortel Networks is pleased to introduce the NT8D14CA Universal Trunk (XUT) card as a replacement for the NT8D14BB card. The NT8D14CA has been modified to add a longer loop capability for CAMA trunk applications.

The NT8D14CA comes equipped with a set of 2 jumpers for each hybrid that should be set to the longer loop length (LL) when the trunk is used in a CAMA application. The jumpers are numbered P35 to P50 and are set to the shorter loop length (SL) position when it comes from the factory. For each hybrid, both jumpers should be changed to the LL position only if used as a CAMA trunk. Otherwise the jumpers should be left to the SL position.

Circuit Card Description and Installation