AT&T System 85 manual Isdn Asynchronous Data Module ADM

ISDN Asynchronous Data Module (ADM)

ISDN Asynchronous Data Module (ADM)

The ISDN ADM is used in conjunction with an ISDN 7505, 7506, or 7507 voice terminal to pro- vide integrated voice/data. With the ADM, an attached data terminal or personal computer can send and receive data through the switch. This unit mounts in the base of the voice terminal and is used instead of the Voice Only Module (VOM). The VOM cannot be upgraded to an Asynchro- nous Data Module.

Physical Description

The ISDN ADM is a printed circuit board built into the ISDN 7505, 7506, and 7507 Voice Terminal.

Data and EIA RS-232-D connections.

An EIA RS-232-D and an 8-pin modular jack are located on the back of the ADM.

Features

The ISDN ADM offers the following features:

Speed

Data rates of 0.3, 1.2, 2.4, 4.8, 9.6, and 19.2 kbps

Full-duplex

Asynchronous

DATA/SEND/OFF button with two indicator lights; allows alternative data call setup from dial pad

Data call setup from an ASCII keyboard through an EIA RS-232-D interface

Ability to change options without dropping the data call

Automatic or manual answering of incoming calls

Remote and local loopback test

Local mode operation for option setting and call control via terminal keyboard

Hayes AT interface support

Power Requirements

Refer to the Power Requirements description in the ISDN 7505, 7506, and 7507 Voice Terminal section of this manual.

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