Performing Maintenance Functions - Northern Telecom DMS-100 Series Maintenance Manual

2-4 PCM30 line drawer maintenance

Performing maintenance functions

Maintenance functions are performed at the MAP (maintenance and
administration position) terminal located at either the host or the remote site.
Drawer maintenance
Maintenance functions on the PLD are performed at the MAP terminal
under the PM subsystem at the LCM level, and these functions are similar to
the functions performed on the SLD. Maintenance functions can be executed
on only one drawer at a time.
When the command return to service (RTS) or test (TST) is entered at the
MAP terminal, a hardware diagnostic test is performed on the specified
drawer. If the test fails, log report PM181 is generated to provide the reason
for the failure. For more information on log reports, refer to the PCM30 Line
Drawer Planning, Engineering, and Administration Guide, 297-2101-115.
PLD line maintenance
Standard line maintenance does not extend to PCM30 lines. Subscriber line
status can be viewed at the LTP level of the MAP terminal under the lines
(LNS) subsystem. The commands POST, BSY, RTS, HOLD, and NEXT can
be applied. For more information, refer to the Line Maintenance Reference
Manual, 297-2101-516.
297-2101-504 Standard 02.01 December 1991