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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-35The ISDN Asynchronous Data Module (ADM)
21
The ISDN Asynchronous
Data Module (ADM)
The ISDN ADM is used in conjunction with an ISDN 7505, 7506, or 7507 voice
terminal to provide 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 Asynchronous Data Module.
Physical Description
The following are physical characteristics of the ISDN ADM.
■ 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