UPS front panel controls and LED indicators

Item

Description

Function

 

 

 

1

Power On/Standby

Turns the UPS power on and off, and places the UPS in Standby mode.1

 

button

 

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).

 

 

 

Component identification 7