Lcm Major - Nortel DMS-100 Series Maintenance Manual

Alarm display
CM
.
Indication
The alarm code LCM (line concentrating module) appearing under the
peripheral module (PM) subsystem header indicates an LCM alarm. The M
under the LCM indicates the alarm class is major . The number n before LCM
indicates the number of OPMs affected by the alarm.
Meaning
The n in front of LCM indicates the number of LCMs in the manual busy
(ManB), system busy (SysB), or C-side busy (CBsy) state.
Result
The ManB and SysB LCMs do not directly affect service because one unit of
the LCM continues to provide service. There is no local backup. If the other
unit of the LCM fails, service will be interrupted.
A CBsy condition can interrupt communication between the OPM and the
host. A CBsy condition reduces the service that the OPM provides to the local
area only.
Common procedures
There are no common procedures.
Action
This procedure contains a summary flowchart and a list of steps. Use the
flowchart to review the procedure. Follow the steps to perform the procedure.
MS IOD Net
. . .
DMS-100 Family OPM Maintenance Manual XPM14 and up
OPM alarm clearing procedures 7-37
PM CCS Lns
nLCM . .
M
LCM
major
Trks Ext Appl
. . .