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DEFINITYEnterpriseCommunicationsServerandSystem75andSystem85
Terminals and Adjuncts Reference
555-015-201
Issue 11
December 1999
Data Modules
21-62The Trunk Data Module (TDM)
21
Other Physical Features
Capabilities
The TDM offers the following features and capabilities:
■ Synchronous or asynchronous operation
■ Full- or half-duplex
■ Selected standard data rates up to 19.2 kbps
■ Automatic answer
■ Self-test
Mounting Options
The TDM can be configured either in a stand-alone or in a multiple mounted
version. The stand-alone version is installed in a 70A Data Mounting aluminum
housing that is equipped with plastic front and rear covers. A maximum of eight
TDMs may be installed in the 71A Data Mounting.
The stand-alone version can be mounted on a surface or desk top near the
associated data equipment. The multiple-mounting carrier unit is normally
installed in an auxiliary cabinet.
Power
Both mounting arrangements require power from a 115-volt AC receptacle to
power the TDM.
TDM Equipment PECs
The TDM is no longer orderable; therefore, no PEC is available.
Additional Documents
The following documents contain additional information relating to the PDM:
■
Trunk Data Module User’s Guide
, 999-700-029
■
DEFINITY Generic 1 and Generic 2, System 75, and System 85 Terminals
and Adjuncts Installation and Test
, 555-015-104