Nortel DMS-100 Series Maintenance Manual page 114

4-14 Star Remote System automatic maintenance
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297-8353-550 Standard 05.01 March 2001
The CM does not perform talk battery tests while the LCM, Star Hub, or
one of its C-side nodes is in the overload condition.
The Talk Battery Alarm feature is only made to find shelf-level failures of
talk battery feed. Therefore, the only talk battery feed failures that are
reported are failures that have an effect on talk battery for all lines on the
Star Hub shelf. Drawer-level failures may or may not be detected.
Detection of failures depend on the drawer where the WLC resides and the
drawer where the failure occurs.
Faults local to the WLC (or its drawer) may prevent the WLC from
correctly detecting talk battery failures. These failures include faults that
cause the WLC to fail line card diagnostics. In these occurrences, the
WLC can incorrectly report talk battery failure and cause a critical alarm,
although talk battery may be present for other lines on the shelf. These
occurrences are not probable. The critical alarm log report (PM179) gives
the location of the WLC to help perform troubleshooting on these
instances.
The Talk Battery Alarm feature does not have an effect on ESA operation
on an RCC, RLCM, or Star Hub. Any talk battery alarm conditions or
reports are ignored during ESA operation. Talk battery failures are not
reported while an LCM or Star Hub is in ESA mode. When the Star Hub
exits ESA mode, the CM analyzes the Star Hub to determine if talk battery
failures exist.
When the Talk Battery Alarm feature activates for an office, 10 minutes
may pass before every LCM or Star Hub in the office begins testing for talk
battery failures. This delay time depends on how long it takes the LCM
audit to cycle through every LCM in the office. An office with heavy traffic
and a large number of LCMs may take longer than 10 minutes.
If you use the SERVORD OUT command to delete the directory number
(DN) assigned to the last WLC on a line drawer shelf, a minor Cannot
test Talk Battery alarm occurs. The alarm message identifies the
WLC where the last assigned DN was deleted. In this condition, the WLC
is hardware assigned/software unassigned (HASU) in a maintenance state
that is not normal. This prevents the LCM from using the WLC for