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3.3 Operation on battery power
(following AC input power
failure)
Transfer to battery power
14
The AC power source is out of tolerance, LED
14
is ON, the
buzzer sounds three times.
The AC power to equipment connected to the UPS is supplied by
the battery.
Threshold for the low-battery warning
14
The low-battery warning threshold can be set by the user, with the
PowerPanel Business Edition Agent
software (see
Personalization (option)
on page 15). LED
sounds every three seconds.
14
flashes. The buzzer
There is very little remaining battery backup time. Close all
applications; UPS automatic shutdown is imminent.
14 Operation