Nortel DMS-100 Series Maintenance Manual page 113

MAP commands that can RTS the first available WLC on a Star Hub shelf
provide the following notification messages. This notification message tells
operating company personnel the minor alarm and ISTb reason for the Star
Hub shelf are cleared. A WLC is available to test for talk battery failures. Two
commands can cause this condition which include the
• RTS command at the LTP MAP level when operating company personnel
post and RTS a WLC. A response to the RTS command follows:
Example of a MAP response:
RTSing the first available WLC on the LCM shelf.
talk battery can now be detected on LCM shelf.
alarm and ISTb reason will be cleared for the LCM shelf
within ten minutes (unless the last WLC becomes unavailable
again).
• RTS Drwr command at the PM level when operating company personnel
post an LCM. When entering the RTS Drwr command, the following MAP
response displays:
Example of a MAP response:
RTSing DRWR of the first available WLC on the LCM shelf. Loss
of talk battery can now be detected on LCM shelf. The minor
alarm and ISTb reason will be cleared for the LCM shelf
within ten minutes (unless the last WLC becomes unavailable
again).
Emergency stand-alone operation does not have an effect on the Star Hub.
ESA operation ignores any talk battery alarm conditions. When the Star Hub
exits ESA mode, the computing module (CM) analyzes the Star Hub to
determine if talk battery failures exist.
Limits and restrictions
The following limits and restrictions apply to the Talk Battery Alarm feature:
• Talk battery testing uses the same WLC that is used for a subscriber line.
If the talk battery test is in progress on a WLC, the WLC goes on-hook to
request a call origination, and the subscriber goes off-hook. There may be
an additional delay of up to 90 milliseconds (ms) before the subscriber
receives dial tone. If the talk battery test is in progress on a WLC, and the
WLC receives a call termination request (to ring the line), there may be an
additional delay of up to 90 ms before ringing begins. For both
originations and terminations, there is no impact on call processing except
for this negligible delay.
• The Talk Battery Alarm feature can detect the loss of talk battery feed to a
Star Hub shelf. Because of limits the WLC cannot detect the loss of talk
battery return. Because of duplicate talk battery returns, return failures are
less possible to occur; this limit is not a serious concern. See the previous
figure "Talk battery distribution on SRHE frame."
Star Remote System automatic maintenance 4-13
DMS-100 Family NA100 Star Remote System XPM15 and up
Loss of
The minor