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CyberPower ATT3612V3S (Leave Behind Manual) Page: 3 of 11
1 PRODUCT INTRODUCTION
1.1 General Description
The ONT-BBPSU (Optical Network Terminal Uninterruptable Battery Backup Power Supply Unit)
is designed to be mounted inside a customer premises and provides power to the ONT. The
Optical Network Terminal (ONT) is an equipment box typically installed on the outside of your
home, where the fiber network terminates and the inside wiring for your home originates. The
BBPSU supports wireline voice communications services by converting 120/230Vac to 12Vdc.
AT&T supplies the initial backup battery for the BBPSU to the first resident of the premises
where AT&T services are installed. All subsequent backup batteries are the responsibility of the
customer at the premises. When equipped with a new, fully charged battery, the BBPSU
provides four to eight hours of backup battery power. Actual results will vary, depending,
among other things, on battery age, usage patterns, and environmental conditions. To
conserve battery backup power for emergency calls, you should not use Internet services during
a power outage.
1.2 Components
The ATT3612V3S unit consists of a dedicated 120/230Vac to 12Vdc power supply with Backup
Battery and dedicated support cables.
The ATT3612V3S unit houses a dedicated battery charger to maintain a 12Vdc, 7.2Ah sealed
lead-acid battery, battery monitoring and alarm circuitry. It contains four indicator LEDs to
provide operational status at a glance, status audible alarms, and one customer-operation
button to silence the audible alarm for 24 hours.
Figure 1: CyberPower Power Supply and ONT System Configuration