Nortel Networks 553-3001-211 manual NTBK50 2.0 Mb PRI card, Contents

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NTBK50 2.0 Mb PRI card

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 761

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 762

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 765

Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 766

Introduction

The NTBK50 2.0 Mb PRI card provides a 2.0 Mb PRI interface. It supports the NTAK20 clock controller daughterboard and either the NTAK93 D-channel interface or the NTBK51 Downloadable D-channel handler. The NTAK93 DCHI daughterboard provides identical performance to the on-board NTAK79 DCHI. The NTBK51 DDCH daughterboard provides support for protocols based on the MSDL platform.

Circuit Card Description and Installation