APC 1000VA - 2: OPERATION; Smart-UPS Front Panel Overview; Online LED Indicator

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2: OPERATION
SMART-UPS FRONT PANEL
230/100V Models
120V Models
Power On
Power Off
Online
The online LED illuminates when the UPS is supplying utility power to the connected
equipment. If the LED is not lit, the UPS is either not turned ON, or is supplying battery
power.