Specifications

Table Of Contents
Data Modules
21-62 Issue 11 December 1999
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 Users Guide, 999-700-029
DEFINITY Generic 1 and Generic 2, System 75, and System 85 Terminals
and Adjuncts Installation and Test, 555-015-104