Introduction

This Residential Gateway (RG) Battery Backup, once properly installed and used, has been designed to maintain your AT&T U-verse SM Voice service in the event of a short disruption to your commercial power service.

Safety Information

CAUTION

IIncoterrectnal battery cvonnectionltage is 12Vor replacementDC. creates risk of explosion. Risk of

Energy Hazard, internal battery is 12VDC, 7.2 Ampere-hour. Before replacing Incorrect battery connection or replacement creates risk of explosion. batteries, remove conductive jewelry such as chains, wrist watches, and rings.

HighThe RGenergyBattheroughy Backupconductiveis intendedmaterialsfor installationcould causeandsevereoperationburns. in

a controlled environment (temperature controlled, indoor area free of

The RG Battery Backup is intended for installation and operation in a controlled

environmentconductive contaminants)(temperature controlled,.indoor area free of conductive contaminants).

The unit shall be installed near an easily accessible power outlet.

No user-serviceable parts exist inside the unit. Refer repair issues only

Noto qualifieduser serviceablepersonnelparts. Fusesexist insideor otherthepartsunit. Refermust berepairreplacedissuesONLYonly towithqualified personnelparts of identical. Fuses ortypesotherandpartsratingsmust.beSubstitutionreplaced ONLYof nonwith-identicalparts ofpartsidentical

types and ratings. Substitution of non-identical parts can cause fire and other can cause fire and other safety hazards.

safety hazards.

All batteries used are sealed lead batteries. Batteries should be recycled.

All batteries used are sealed lead acid batteries. Battery should be recycled. Do not The RG Battery Backup shall be installed near an easily accessible power outlet. dispose of batteries in a fire. The batteries may explode. Do not open or mutilate

batteries. Released material is harmful to the skin and eyes. It may be toxic.

System Requirements

The RG Battery Backup is designed for use with the AT&T U-verseSMResidential Gateway and your AT&T U-verseSMVoice service.

NOTE: Your AT&T U-verseSMVoice service, including 911 dialing, will not function without electrical or battery-backup power. The RG Battery Backup supplies power for your AT&T U-verseSMVoice service; it does not supply power for cordless phones (and it does not supply power for your network interface device or optical network terminal, typically located on the outside of your home, which may also require battery-backup power for your AT&T U-verseSMVoice service to function).

Therefore, in the event of a power outage, you should ensure you have one corded single-line, touchtone phone connected directly to the AT&T U-verseSMResidential Gateway or your in-home wiring and the AT&T U-verseSMResidential Gateway connected to the RG Battery Backup. (Rotary/pulse phones do not work with AT&T U-verseSMVoice service.) If you connect more than one corded phone, it will use more power; if you connect a cordless phone, it will not function without a separate battery backup, and not all cordless phones are so equipped. If you have a monitored home alarm, you should never plug a multi-line phone directly into the Residential Gateway—it could interfere with the alarm signals. You should not connect the RG Battery Backup to

any device other than the AT&T U-verseSMResidential Gateway or use it with any service other than your AT&T U-verseSMVoice service, and you should always have an alternative means of dialing 911, such as via a cellular telephone.

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Belkin BU3DC001-12V user manual Introduction, Safety Information, System Requirements