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Four status LEDs are displayed on the front panel of the BBU. The operation of the OPSU/BBU
can be assessed using these LEDs.
TYPE
System Status
Battery Power
Replace Battery
Auxiliary Power
3.3
Alarms
There are audible and visual alarm signals to alert the customer to abnormal and or service
effecting conditions present in the OPSU/BBU.
3.4
Alarm LEDs
TYPE
ON Battery
Replace Battery
Battery Missing
Low Battery
3.5
Audible Alarm
TYPE
Input Power Fail
Replace Battery
Low Battery
4
MAINTENANCE
4.1
Maintenance Mode
Every 45 days the OPSU/BBU automatically self tests the battery to determine its remaining
useful life. No user intervention is needed. If the unit detects a failed battery, the "Replace
Battery" LED indicator on the unit will light.
OPSU/BBU Instalation and Operation Manual (IOM), Rev 0.0
Symbol
Condition
System ON and normal, idle or discharging
Battery Charging
Battery discharging
<45% capacity remaining
Battery failed self test
Aux source connected to unit.
Table 2: LED Indicators
Condition
Battery being discharged
Battery failed self test
No battery installed or battery
disconnected
<45% capacity remaining
Table 3: Audible Alarm
Condition
Loss of input power
Battery failed self test
<45% capacity remaining
Table 4: Audible Alarm Actions
Alarm Action
ON GREEN
OFF
ON GREEN
FLASH GREEN
ON RED
ON GREEN
Buzzer
Beeps ONCE during
switchover to battery back-
up
Beep once every 15
minutes
None
Beeps 4 times per minute
Buzzer
1 second beep at
power loss
Beep once every
15 minutes
Beeps 4
times/minute
Page: 7 of 8
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