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46
Troubleshooting
UPS Alarm Messages
The UPS Alarm LED is activated during Alarm and Fault Conditions.
Alarm LED Conditions LCD Alarm Displays
Environment temperature > 55C Temp Derat
BTS temperature reading is below
-20C
Bat
Temperature
Low
BTS temperature reading is
greater than 49C
BattTemp
High
Battery voltage lower than 42.5V
for SMART1548ET and lower than
21.3V for SMART1524ET
Battery
Voltage Under
There is no special alarm window
POP at this condition
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