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Component identification 7
UPS front panel controls and LED indicators
Item Description Function
1
Power On/Standby
button
Turns the UPS power on and off, and places the UPS in Standby mode.
1
2 Output Load Level LED
Shows approximately how much of the UPS power capacity is used to
support the equipment connected to the output receptacles.
Red—Maximum load
Amber—Medium load
Green—Light load
3 Power LED
Green—The UPS is on and supplying connected equipment with AC
power.
Flashing green—The UPS is operating from its internal batteries during a
blackout or severe brownout. If the blackout or brownout is prolonged,
save any open files and shut down the connected equipment.
4 Voltage Correction LED
Green—The UPS is automatically correcting high or low AC voltage on
the utility line without the assistance of battery power. The UPS will emit a
slight clicking noise.
5 Battery Warning LED
Amber—During a self-test, the UPS found that the batteries must be
recharged. Charge the batteries and repeat the self-test ("Initiating a self-
test" on page 19).