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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-16The 7400D Low-Speed Asynchronous Data Module
21
Physical Description
Dimensions
The following dimensions are approximate.
Width = 7 inches
Depth (front and rear) = 8-3/4 inches
Height = 1-3/4 inches
Features
Front Panel
The front panel is comprised of:
Two LEDs, one red and one green
— POWER/TEST light — This red light goes on when the 7400D data
module is on, and it flashes during all tests
— DATA light — This green light goes on when a data call is in
progress, and it flashes when receiving an incoming call. This light
also flashes synchronously with the red light indicating that the
connection to the PBX is lost.
■ A single line, 16-character LCD display — The 16-character LCD display
first shows a start-up sequence consisting of self-test results, hardware
configuration, software release and version, and copyright information.
Following start-up, the Home screen is displayed.
■ Three non-locking push-buttons
— NEXT/NO button — This button is used to scroll forward through the
menu and/or reject the function displayed. By keeping this button
depressed, you are able to quickly scroll through menu items.
NOTE:
When you press NEXT/NO and BACK simultaneously, you are
automatically returned to the Home screen from many menus.
However, do not press these two keys simultaneously while changing
option values. If this is done, rather than returning you to the Home
screen, the system queries if you want to save the changes you have
made.