User Manual
Alarms68P09255A57-2
Aug 2002
SC4812ET Optimization/ATP Manual Software Release R16.1.x.x
PRELIMINARY
3-99
Table 3-59: Multiple Rectifier Failure or Major Alarm
Step Action
3 Verify that the LMF reports both alarm conditions. (BTS #29, BTS #21, and BTS #24)
4 Turn the AC breaker for the 1st shelf ON. Verify that all alarms have cleared.
5 Return the rectifier module to its original location. This completes the alarm test on the power cabinet.
Single Rectifier Failure
(Six Rectifier System)
Table 3-60 gives instructions on testing single rectifier failure or minor
alarm in a six rectifier system.
Table 3-60: Single Rectifier Fail or Minor Alarm
Step Action
1 Remove two(2) rectifier modules from shelf #2.
2 Turn the AC breaker OFF, for shelf #2.
3 Verify that a rectifier fail alarm is generated. The single rectifier module will lite two RED fail LED
(DC and Power), and the Meter Alarm Panel and LMF will also indicate a minor alarm and rectifier
fail status. The RECTIFIER FAIL LED will lite.
4 Check that the LMF reports both of these alarm conditions. (BTS #24 and BTS #21)
5 Turn the AC breaker for this shelf ON and verify that Rectifier Fail and Minor Alarm conditions have
cleared.
Multiple Rectifier Failure (Six Rectifier System)
Table 3-61 gives instructions on testing multiple rectifier failure or
major alarm in a six rectifier system.
Table 3-61: Multiple Rectifier Failure or Major Alarm
Step Action
1 Replace one rectifier module previously removed and turn the AC breaker for this shelf, OFF.
2 Verify that a rectifier alarm is generated. Each of the two rectifier modules will lite a RED fail LED,
and the Meter Alarm Panel will indicate a major alarm (Rectifier Fail, Major and Minor Alarm).The
RECTIFIER FAIL LED will lite.
3 Verify that the LMF reports both alarm conditions. (BTS #29)
4 Turn the AC breaker for this shelf ON. Verify that all alarms have cleared.
5 Return all rectifier module to their original location. This completes the rectifier alarm tests on the
power cabinet.
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