Lucent Technologies 60V Small Broadband Power System J85500Q-1
Issue 4 October 1998
Alarms, Controls, and Displays 6 - 3
Alarm
Processing
The Alarm Control Unit (ACU) in the 60-volt/60 Hz plant is part
of the BPS and administers alarm processing, plant on-standby
control and plant voltage adjustments in CPS. It presents alarms
and conditions to the user as front panel LED indicators and
Form-C relay contact closures and sends them for remote
reporting.
Power Major
Alarms
Conditions that impact service and require immediate attention
are classified as major alarms and designated as Power Major
(PMJ) alarms. This red LED lights to signify one or more of the
following conditions:
•
Rectifier failure
•
Excessive battery temperature
•
Battery on Discharge alarm
•
BPS failure
•
Output distribution circuit breaker operation
•
Battery string not connected
•
AC failure
•
Thermal probe failure
Figure 6-2: ES664 Rectifier Faceplate
Standby
Alarm
On
Thermal
Alarm
On LED
On/Standby
Switch
Standby
LED
