6 status indicator – APC AP9608 User Manual
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2.6 Status Indicator
The status indicator shows the following conditions.
STATUS LED
INDICATION
Off
Call-UPS II is off.
On Continuously
Call-UPS II is on with no user logged in.
Single short flashes
User is logged in or logging in.
Double short flashes
Lockout is in progress.
Rapid flashes
Call-UPS II failed its power on self-test.
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