APC AP9607 Manuel D’Utilisation

6

The Interface Expander status 

LED

 provides important 

information concerning operation of the unit. Refer to the 
table below for a description of the conditions indicated by 
the 

LED

.

On

Normal operation. The Interface 
Expander is on and communicating 
with the 

UPS

.

Mostly on, with a single 
blink off

The Interface Expander is signaling a 
UPS On Battery condition to the con-
nected servers.

Mostly on, with two 
blinks off

The Interface Expander is signaling 
On Battery and Low Battery condi-
tions to the connected servers, and will 
eventually shut down the 

UPS

.

Flashing continuously

Shutdown of the UPS is imminent.

Mostly off, with a single 
flash on

UPS

 outputs are off—

UPS

 is in Sleep 

mode.

Blinking slowly and 
continuously

The Interface Expander failed its self-
test.

Off

The Interface Expander is powered off 
or is not able to communicate with the 

UPS

.