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What is a BBU?

Category:Terminology

Battery Backup Unit

In addition to your ONT, your service has a Battery Back-up Unit (BBU) that is located inside your garage or house. In case your ONT is accidentally unplugged or in the event of a commercial power failure your back-up battery will provide you with power for voice service (Voice Service ONLY) for up to 8 hours.


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Written by FiosFAQ
Last updated on 09.01.06

 
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