Subscriber Lines Manual Maintenance; Drawer Maintenance - Nortel DMS-100 Series Maintenance Manual

In addition to the above alarm conditions, ESA module defects can generate
alarms at the MAP display PM level. These alarms are the same as the alarms
the present peripheral modules raise. The system can generate the following
alarms:
• MINOR PM alarm. An ESA module in a ManB state generates this alarm.
• MINOR PM alarm. An ESA module in a CBsy state generates this alarm.
• MINOR PM alarm. An ESA module in an ISTb state generates this alarm.
• MAJOR PM alarm. An ESA module in a SysB state generates this alarm.
• CRITICAL PM alarm. The system generates this alarm when a maximum
of 10% of the peripheral modules are in a SysB state

Subscriber lines manual maintenance

The switch operator identifies subscriber lines that fail to meet quality
standards. The switch operator posts the failures at the line test position (LTP)
or by output reports the ALT log subsystem generates. Refer to the
Input/Output System Reference Manual, NTP 297-1001-129. The automatic
maintenance failures this manual identifies are manually tested and corrected.

Drawer maintenance

You can monitor and change drawer states from the LCM level of the MAP
display. You can manually test a unit at the MAP display to run a drawer test.
When the system detects a defective card, you can remove the drawer of the
card. Removal of this card does not affect other call proccessing or LCM
maintenance. Test and replace this card after removal.
DMS-100 Family OPM Maintenance Manual ISN07 (TDM)/SN07 (DMS) and up
Functional overview 2-73