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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-5The 7400A Data Module
21
Mounting Options
The 7400A data module can be configured as a stand-alone unit or in a
multiple-mount housing. (The multiple-mount housing
must be used
if D-lead
modems are used in the modem pool. The multiple-mount can also be used to
support Hayes-compatible modems.)
Color Options
The 7400A Data Module is available in misty cream only.
Tests
The 7400A data module supports the following test and maintenance features:
■ Self-test
■ Local loopback and remote loopback
■ Local Loop self test and remote loop self test
■ DCP looparound
■ Maintenance activate
■ Make busy
■ Manual on-hook/off-hook
Capabilities
The basic features and capabilities of the 7400A data module are:
■ DCP mode 2 operation only
■ Full-duplex, 10-bit start/stop, asynchronous operation
■ Asynchronous data rates of 0.3, 1.2, 2.4, 4.8, 9.6, and 19.2 kbps
■ Even, odd mark, and space parity options
■ Automatic answer option
■ Signal loss disconnect option
■ Autobaud
■ Autoparity
■ Long-break and triple-break disconnect options
Data features for modem pooling applications include:
■ EIA RS-232-D DTE interface, enhanced with CI2 and CH2 leads
■ Interface for D-lead control modems
■ Interface for Hayes-compatible modems