Nortel DMS-100 Series Maintenance Manual page 366

9-2 Trouble isolation and correction
The level of the alarm indicates alarm seriousness and corresponding
urgency for correction. Alarm levels are minor, major, or critical. The
following table describes alarm conditions.
Alarm description
Alarm
Minor
Major
Critical
Accessing alarms
The different MAP subsystems for the SMS configuration produce alarms.
Clearing alarms
Follow the following guidelines when you respond to alarms:
For alarm clearing procedures, refer to
297-8231-550 Standard 09.01 August 1998
More than one alarm of the same seriousness can appear on the screen of
the MAP. When more than one alarm occurs, clear the alarms from the
left of the screen to the right.
If an alarm of greater seriousness occurs while you fix another alarm,
respond to the new alarm. Do not continue attempts to clear the less
important alarm.
Alarm Clearing Procedures
Card Replacement Procedures
MAP display
blank
M
*C*
Description
Indicates does not affect
service.
Indicates a service
degradation, threatening
condition.
Indicates a current
service outage or
potential service outage.