DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-21The 8400B Plus Data Module
21
The 8400B Plus Data Module
Figure 21-5. The 8400B Plus Data Module
Like the 7400B Plus data module, the 8400B Plus Data Module is a full-duplex
asynchronous, data module that provides for simultaneous voice-data
communications at the desktop over standard twisted pair wiring. However, it has
been designed explicitly to work, in the linked mode, with 2-wire DEFINITY DCP
circuits. That is, this data module is a data service link between a DTE device, a
2-wire voice terminal such as the 8400-Series voice terminals, and a DEFINITY
G3V2 or later.
At the desk, the 8400B Plus data module provides asynchronous communication
speeds ranging from 0.3 to 19.2 kbps. The 8400B Plus data module’s ability to
emulate a Hayes compatible modem interface makes it compatible with many
standard PC communications packages that use Hayes Command sets. In
addition, the 8400B Plus data module provides a voice dial capability that allows
you to initiate voice calls from a PC using industry standard “auto-dialer” PC
communications packages.
Applications
The 8400B Plus data module can be used with the DEFINITY ECS G3V2 or later.
The data module is used as a DCE for host access services, PC, or terminal
(DTE) connectivity. The PC or other terminal device is connected to the 8400B
Plus data module using a standard EIA-232-D cable and, if needed, the supplied
The red and green
lights on front panel