Pm Lcm; Minor - Northern Telecom DMS-100 Series Maintenance Manual

CM
.
Indication
The alarm code LCM, below the peripheral module (PM) subsystem header,
indicates a line concentrating module minor alarm. The number that
precedes LCM is the number of LCMs with a minor alarm.
Meaning
The indicated number of LCMs have one or more faulty drawers. An LCM
that has one or more faulty drawers is in in-service trouble (ISTb).
Impact
Lines in a drawer that is system busy (S) or manual busy (M) are line
module busy (LMB), and subscribers are without service.
Common procedures
None
Action
The following flowchart is a summary of this procedure. Use the
instructions in the step-action table that follows the flowchart to perform the
procedure.
MS IOD Net
. . .
PCM30 Line Drawer Maintenance Guide BCS33 and up
Alarm clearing procedures 3-3 Alarm clearing procedures 3-3
PM CCS Lns
1LCM . .

PM LCM

PM LCM
(continued)

Minor

Minor
Trks Ext APPL
. . .