Pm Star Major - Nortel DMS-100 Series Maintenance Manual

Alarm display
CM
Indication
The alarm code STAR under the PM subsystem header indicates an STAR
alarm. The M under the STAR indicates a major alarm. The number n before
STAR indicates the number of STARs with a major alarm.
Meaning
The n is the number of STARs that are in the in-service trouble (ISTb) state.
Both units of the STAR in the ISTb state may indicate that one of the main and
one of the secondary power converters have failed.
Impact
One unit of the STAR in the ManB or SysB state does not directly affect
service because one unit of the STAR continues to provide service. However,
there is no local backup. If the other unit of the STAR fails, service is
interrupted. A CBsy condition may interrupt communication between the
STAR and the host. This interruption reduces the service provided by the
STAR to the local area only.
Common procedures
None
Action
The following flowchart is a summary of the procedure. Use the instructions
in the step-action procedure that follows the flowchart to clear the alarm.
MS IOD
. . .
DMS-100 Family NA100 Star Remote System XPM15 and up
Star Remote System alarm clearing procedures 11-29
Net PM CCS
. nSTAR .
M
PM STAR
Lns Trks Ext
. . .
major
Appl
.