Nortel Networks 553-3001-211 manual NTAK79 2.0 Mb PRI card, Contents

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NTAK79 2.0 Mb PRI card

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 733

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 734

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

Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 740

Introduction

The NTAK79 2.0 Mb Primary Rate Interface (PRI) card provides a 2.0 Mb interface and an onboard D-channel handler (DCH). The NTAK79 card also includes an onboard clock controller (equivalent to the NTAK20

Clock Controller) that can be manually switched into or out of service.

The NTAK79 card does not support the NTBK51 downloadable D-channel handler daughterboard.

You can install this card in slots 1 through 4 in the MG 1000S. The card is not supported in the MG 1000S Expansion.

Note: Up to three four trunk cards are supported in each MG 1000S.

Circuit Card Description and Installation