Nortel Networks 553-3001-211 manual NT8D41BA Quad Serial Data Interface Paddle Board, Contents

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NT8D41BA Quad Serial Data Interface Paddle Board

Contents

This section contains information on the following topics:

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 669

Physical description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670

Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 670

Connector pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 673

Configuring the QSDI paddle board . . . . . . . . . . . . . . . . . . . . . . . . . . . 675

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 680

Introduction

The NT8D41BA Quad Serial Data Interface (QSDI) paddle board provides four RS-232-C serial ports. These ports allow communication between the system and four external devices, either DTE or DCE. The QSDI paddle board is normally used to connect the system to the system administration and maintenance terminal. It can also be used to connect the system to a background terminal (used in the hotel/motel environment), a modem, or to the Automatic Call Distribution (ACD) or Call Detail Recording (CDR) features.

The QSDI paddle board mounts to a special socket on the rear of the backplane of the following modules:

•NT5D21 Core/Network module

Circuit Card Description and Installation