Filter
Top Products
Modular Trunk Data Module (MTDM)
Self-Test
This switch is located behind the front faceplate. Pressing this button performs the self-
test.
LOC LOOP/REM LOOP
This switch is located behind the faceplate. It is used to perform the Local loop test or
Remote loop test.
Options
The option switches are located behind the front faceplate. There are two Dual In-line
Package switches, one a 10-position, the other a 12-position, located behind the front
faceplate. Nineteen of the switches are used to set the options. The other three are
spares reserved for future use.
Lights
Power
Data Set Ready
Line Status
Call in Progress
Carrier on
Test in Progress
Check option
Test Result
Send Data
Receive Data
Mounting Options
The MTDM can be configured either in a stand-alone or a multiple mounted version. The stand-
alone version is contained in a 70A Data Mounting aluminum housing that is equipped with plastic
front and rear covers. A maximum of eight MTDMs 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 MTDM.
5-74