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Optical Network Terminal (ONT) battery backup

Learn about the right backup power source for your ONT.


ArticleDETAILED INFO

ONT battery backup equipment

An Optical Network Terminal, or ONT, is a unit typically located on the side of your house or in your garage. An ONT converts the signals from fiber optic light into copper and electric signals. ONTs have a power supply connected to an external battery backup enclosure. The power supply is often located in the home. This enclosure houses a replaceable battery.

Note
: Please see your manufacturer's manual when replacing the battery. Incorrect or substitute battery connection creates a risk for fire or explosion.

ONT battery backup enclosuresCompatible replacement batteries
 Cyber Power

CyberPower

Compatible with ONTs:
ALU H-ONT-B
ALU H-ONT-C
ALU O-210G-A
ALU G-240G-A
Ericsson T111G
Internal battery replacement model GT12080-HG image

Internal battery replacement model: GT12080-HG

To replace, visit GS Battery or call 800.472.2879

Note:
Do not dispose of the harness when replacing the old battery.
The harness is needed to install your new battery in the battery backup enclosure.
Battery harness
APC Power Shield image

APC Power Shield

Compatible with ONTs:
ALU H-ONT-B
ALU H-ONT-C
ALU O-210G-A
ALU G-240G-A
Ericsson T111G
Internal battery replacement model APCRBC153 image

Internal battery replacement model: APCRBC153

To replace, visit APC or call 800.300.7141


Delta 1

Compatible with ONTs:
ALU H-ONT-B
ALU H-ONT-C
ALU O-210G-A
ALU G-240G-A
Ericsson T111G
Internal battery replacement model GT12080-HG image

Internal battery replacement model: GT12080-HG

To replace, visit GS Battery or call 800.472.2879
Delta 2 image

Delta 2

Compatible with ONTs:
ALU H-ONT-B
ALU H-ONT-C
ALU O-210G-A
ALU G-240G-A
Ericsson T111G
Internal battery replacement model GT12080-HG image
Internal battery replacement model: GT12080-HG

To replace, visit GS Battery or call 800.472.2879
APC BGE70 image

APC BGE90

Compatible with ONTs:
Alcatel-Lucent/AT&T G-010G-A 
Internal battery replacement model APCRBC153 image

Internal battery replacement model: APCRBC153

To replace, visit APC or call 800.300.7141


For additional technical specifications on battery backup, please refer to your manufacturer's user guide.

With new equipment manufactured regularly, older replacement battery equipment may not be available for purchase. Confirm compatibility of any new battery backup equipment with your retailer. When providing backup power to a household with more than one device (for example, both Wi-Fi gateway and ONT), you need a battery backup for each piece of equipment.

Note: Review the digital phone service terms of service or landline residential service agreement for battery backup information and terms and conditions regarding your services.
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