Why is my APC Back-UPS Product emitting different tones and LED indicators?
UPSs are generally installed and placed in places not easily seen by a user (i.e., under a desk, in a wiring closet, etc). Therefore, in order to provide proactive warnings of changing UPS and power conditions to users, APC’s UPSs have audible tones. An occasional single beep from the UPS is normal UPS operations. This means that the UPS is protecting the load. Below is a list of audible indicators and possible meanings. Please refer to your Back-UPS user manual for the complete list of which audible tones the unit you purchased has. 1.)The Back-UPS product is operating on battery power Tones: 4 Beeps Every 30 Seconds (the amber On Battery LED will be illuminated) . 1 beep every 5 seconds Meaning : This alarm indicates that the UPS has transferred from On Line operation to On Battery operation. The Battery Power Supplied outlets are now battery powered. – If the input voltage is determined to be unsafe for your computer equipment, the UPS will transfer to On Battery. The alarm will sto
