

Since you are responsible for the management of your battery, it is very important that you familiarize yourself with the light signals and audible alarms to ensure that you have backup power if it’s needed. Overcurrent - Alarm is silenced once the overcurrent has been properly removed. Replace Battery - Alarm is silenced when the battery is removed. Low Battery - Alarm is silenced if the battery voltage goes above 12V (electrical power has returned), the battery is fully discharged or the battery is removed from the BBU.įoreign Voltage - Alarm is silenced once the foreign voltage has been properly removed. You can use the alarm in combination with the indicator lights to troubleshoot your BBU issue. The conditions listed below are the potential reasons for the audible alarm. The alarm sounds for two seconds and then is silent for 58 seconds. If you need to replace the sealed lead-acid battery in your backup unit, please check the following Environmental Protection Agency resources for proper disposal instructions: visit or call the EPA directly at 1-80.īoth BBU models are equipped with an audible alarm to inform you of problems with your BBU. Note: Battery disposal standards and requirements vary by state. Or, you can contact the Verizon Fiber Solutions Center at 1-88 and they will direct you to an approved battery replacement vendor who will be able to handle your request for a new battery. When your battery does need to be replaced, you can purchase a sealed lead-acid battery at a major electronics outlet or a home-improvement store. The average life of your battery is between one and four years, depending on the average temperature of the environment. The BBU also tells you when the battery needs to be replaced.
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In addition, the BBU contains a series of indicator lights that tells you whether your service is being powered by your home’s electricity or the battery. The BBU is connected directly to the ONT to provide backup power if it’s needed. Your BBU was installed in a location in your home or garage where it can be easily monitored - most likely near the OPSU. In case your ONT Power Supply Unit is accidentally unplugged - or in the event of a commercial power failure - a BBU has been installed to provide you with backup power for voice service for approximately eight hours. In fact, the amount of power needed is as little as what it would take to operate a couple of night lights.īattery Backup Unit (BBU): Continuous power when you need it The ONT requires very little power to operate. In normal operation, the light should be green. If the indicator light is dark, electricity is not flowing from the outlet to the ONT. The OPSU contains a single indicator light that tells you if electrical power is present. The OPSU supplies that power by connecting your ONT directly to an electrical outlet in your home or garage. Your ONT requires electricity to operate all Verizon services provided on the FiOS network. ONT Power Supply Unit (OPSU): Your electricity source Please note: One of these ONT models will be installed onto either the outside or inside of your home. To ensure connectivity to the Verizon FiOS network, please make sure your ONT Power Supply Unit is plugged in at all times. The ONT has a power cord that goes into your home through the ONT Power Supply Unit, where it plugs into an existing standard electrical outlet. Unlike traditional self-powered telephone service, your Verizon FiOS service depends on your home’s power source. Information that is sent from your home will be converted from electric signals to light in the ONT. That way, it can be “read” by your telephones and computers. When that light reaches your home through the Verizon network, it is converted into electric signals in a box installed onto either the outside or inside of your home called the ONT. Verizon FiOS, however, transmits signals using hair-thin strands of glass fiber and laser-generated pulses of light. Traditional telephone service uses copper wire to transmit communications signals.

The Optical Network Terminal (ONT): Your light source

In that case, the information on pages 4–9 may not apply to you. However, in many apartments and condominiums, the ONT/BBU are installed in a centralized location in your building. If you live in a building with multiple units, such as an apartment building or other location with multiple tenants, the ONT and Battery Backup Unit (BBU) may be installed in your apartment’s utility room or closet (see Single-Family House diagram). *Indicates that the ONT could be installed onto either the outside or inside of the home.
