The Buzzer definition as below:
UPS condition
Fault active
Over Load
Warning active
Other Warning active
Battery output
Bypass output
5.2 LCD description
The LCD backlight automatically dims after 2 minutes of inactivity (except UPS is
fault). Press any button to wake up the screen.
Buzzer status
Continuous
2 Beep every second
Beep every second
Beep every 4 seconds, if battery low, buzzer Beep every
second
Beep every 2 minutes
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