3.8 V3 BBU – BATTERY ALARM RESET
• The Battery has an ALM LED which illuminates RED if any issues are detected. To reset/clear the
battery alarm, push and hold the recessed RESET button located on top of the LiFEPO4 battery for
approximately 10 seconds to reset the Battery MCU and clear any Battery Alarms. Once all the SOC
(State of Charge) LEDs begin to re-illuminate, release the RESET button immediately. See Figure 83
for details on where the RESET button is located.
3.9 V3 BDA/MU/FOU/RU POWER ON AND POWER OFF
Before proceeding, double-check that all the wire connections are secured, and polarities are correct for all
AC and DC connections. Refer to Figure 84 for details on the locations of switches and breakers.
• Power ON the system (with V3 BBU):
1. Turn ON the FOU Power Switch (If using Fiber DAS)
2. Turn ON AC Switch in the BDA/MU/RU
3. Turn the DC IN/BATT CHRG Switch to “BATT CHRG”
4. Turn ON Battery Breaker on the battery
5. Turn ON the AC Breaker in the BBU
• Power OFF the System (with V3 BBU)
1. Turn OFF AC Breaker in the BBU
2. Turn OFF Battery Breaker on the battery
3. Turn OFF AC Switch in the BDA/MU/RU
4. Turn OFF the FOU Power Switch (If using Fiber DAS)
• Power ON the system (no V3 BBU, direct AC Connection to BDA):
1. Turn ON the FOU Power Switch (If using Fiber DAS)
2. Turn ON AC Switch in the BDA/MU/RU
• Power OFF the System (no V3 BBU, direct AC Connection to BDA):
1. Turn OFF AC Switch in the BDA/MU/RU
2. Turn OFF the FOU Power Switch (If using Fiber DAS)
• Power ON the system (no V3 BBU, direct 48VDC Connection to BDA from third-party source):
1. Turn ON the FOU Power Switch (If using Fiber DAS)
2. Turn DC Switch to “DC IN”
3. Turn on third-party 48VDC Power source
• Power OFF the System (no 3 BBU, direct 48VDC Connection to BDA from third-party source):
1. Turn OFF third-party 48VDC Power source
2. Turn OFF the FOU Power Switch (If using Fiber DAS)
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