Справочник Пользователя для AT&T System 85
Modular Trunk Data Module (MTDM)
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d
Self-Test
This switch is located behind the front faceplate. Pressing this button performs the self-
test.
test.
d
LOC LOOP/REM LOOP
This switch is located behind the faceplate. It is used to perform the Local loop test or
Remote loop test.
Remote loop test.
d
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.
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
d
Power
d
Data Set Ready
d
Line Status
d
Call in Progress
d
Carrier on
d
Test in Progress
d
Check option
d
Test Result
d
Send Data
d
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.
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.
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.
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