Adding a battery backup to fiber ONT
Inspired by https://www.exitthefastlane.com/2012/04/how-to-use-verizon-fios-battery-backup.html Frontier fiber Internet does not come with a battery backup unit. The XGS-PON ONT Model FOX222 has a 16V 1.5A Molex Micro-Fit 3.0 Receptacle (Dual Row, 8 Circuits) , see post on DSLReports . You can get a CyberPower DTC36U12V indoor UPS and CBL7PIN350MLX-004-BLK (4ft) or CBL7PIN350MLX-010-BLK (10ft) cable. I paid <$45 for UPS + cable shipped on ebay. On UPS it has a 7 pin (TE Connectivity AMP?) connector. It takes 1 x RB1270 (7Ah) battery, but you can use a 1 x RB1290 (9Ah) battery of the same size. The UPS has 12VDC on battery output voltage and FOX222 ONT works fine with that. ExpertPower EXP1290 12 Volt 9 Ah Sealed Lead Acid Battery With F2 Terminals , datasheet (this is the same battery that is commonly used in 120V UPS) Except the ONT is configured (?) to shut down LAN when UPS is on battery (ONT optical still runs, but...