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7.5 UPS Status Indicators
UPS status is indicated by five symbols: fault indicator, AC input indicator, battery indicator,
inverter indicator and bypass indicator. Table 3 shows the symbols and their meanings.
Table 3 UPS status indicators
UPS Status
Indicator Icon Color Description
Fault Indicator Red On if the UPS has detected a fault; Off if there is no fault
AC input Indicator Green
On when the utility input power is normal; Off during utility failure;
flashing when utility power is outside specifications
Battery Indicator Amber
On when the battery is supplying power; Off when the battery is not
supplying power
Inverter Indicator Green
On when the inverter is supplying power; Off when the inverter is not
supplying power
Bypass Indicator Amber
On when the bypass is supplying power; Off when the bypass is not
supplying power; flashing when utility power is outside specifications