ONT Battery Backup

If you have a Residential Gateway (RG), also known as a Wireless Gateway (WG), inside your premises, you may also have an Optical Network Terminal (ONT) which is a box typically located on the side of your house or in your garage, where AT&T's fiber network terminates. All of the following information only applies if you have an ONT. Please refer to the pictures below to determine whether you have an ONT.

OPTICAL NETWORK TERMINAL

Your AT&T voice and Internet services require electrical power from your home to operate. Electricity from your home powers the Optical Network Terminal (ONT), an equipment box where AT&T's fiber network terminates and inside wiring for your home originates. AT&T provides a Power Supply Unit (PSU) for the ONT, which can be placed within 100 feet of the ONT and is installed inside your home or garage. AT&T supplies an initial backup battery in the PSU for the first resident of the premises where AT&T services are installed. All subsequent backup batteries are the responsibility of the customer at the premises. If you are not the first resident, you will not have an initial backup battery from AT&T; therefore, you should check the PSU for the presence and status of a backup battery and place/replace if necessary.

If a power outage occurs, you will not be able to make or receive calls, including 911 calls, unless you have battery backup power for the ONT. During a power outage, if you wish to conserve battery power for making and receiving necessary calls, you should avoid making unnecessary calls and not use AT&T Internet service. To conserve battery backup power for emergency calls, you should not use Internet services, U-verse TV or make unnecessary voice calls during a power outage.

The ONT battery backup will not power cordless phones, home alarm panels, or other equipment, such as telecommunications devices used to assist customers with disabilities, that are connected to the telephone line and require electricity from the customer's premises.

Determine ONT Power Supply Unit (PSU) Type At Your Home – Refer To Images Below:

Delta One Piece PSU	Delta Two Piece PSU	CyberPower PSU	APC PowerShield PSUs (Two models that look the same; model numbers CP24U12 & CP27U13)

Backup Battery for ONT: You are responsible for monitoring the backup battery and will need to replace it when necessary. AT&T shall have no liability for the failure of your service to function during a power outage, including failure due to the absence or insufficiency of battery backup power. For ONT battery replacement and recycling please contact GS Battery (USA) Inc. at 800-472-2879 or www.gsbattery.com. Be sure to have the battery model number, which is PX12072-HG or GT12080-HG, and the warranty date, which is located on the label on the side of the battery. The battery number is also located on the label on the side of the battery. AT&T does not supply replacement batteries.

When equipped with a new, fully charged backup battery, the PSU will provide four to eight hours of battery backup power. Actual results will vary, depending, among other things, on battery age, usage patterns, and environmental conditions, including temperature extremes and fluctuations.

Batteries must be of the 12 volt - 7.2 or 8 Amp hour variety with F2 Faston connectors and a size not to exceed 6.05" Length x 2.6" Depth x 4.05" Height.

Portable generators with 120 volt outlets and extension cords will power the PSU in the event of extended power outages. See manufacturer details for operating and safety procedures when using a portable generator. Other 120 volt PSU backup solutions may be available at certain home and electronics stores (e.g., Uninterruptible Power Sources (UPSs) and Duracell® Standby Power Plugs).

Information regarding where replacement batteries can be purchased is listed below. Locations where batteries are available are subject to change.

Replacement Battery Model Number:
GS Battery (USA), Inc.:    GT12080-HG

Consumer Batteries are commercially widely available at retail locations such as:

• GS Battery (USA), Inc. 800-472-2879 (AT&T recommended provider)
  www.gsbattery.com
• Batteries Plus
• Radio Shack
• Sears
• Amazon (via Internet)

Determine the Power Supply Unit (PSU) type
On the front of Power Supply Unit (PSU) is a label that shows the Serial Number designated by S/N. If the S/N starts with DAE this is a Delta PSU. If the S/N starts with CYB this is a CyberPower PSU. Two models that look the same are the APC PowerShield PSUs. To determine the model number, loosen the screws in the battery compartment located at the bottom left of the PSU, lift the PSU up, and look at the model number on the back of the unit.

How to determine when to replace your ONT battery:

Delta One Piece PSU:
There are status lights on the front right of the Delta One Piece PSU. Refer to the Replace Battery and Missing Battery status lights. The Replace Battery status light will be red if the battery needs to be replaced. An audible alarm will also sound, with one beep every 15 minutes, when the battery needs to be replaced. When the power supply begins using battery power, it will beep once and then remain silent. While running on battery power, if the battery begins to run low, the alarm will beep four times per minute. The alarm can be silenced for 24 hours by pushing the blue button on the front of the power supply. The Missing Battery status light will be green if no battery is connected to the power supply.

Delta Two Piece PSU:
There are status lights on the front right of the Delta Two Piece PSU. Refer to the Replace Battery status light - third down from the top. It will be red if the battery needs to be replaced or if it is missing. An audible alarm will also sound, with one beep every 15 minutes, when the battery needs to be replaced. To determine if the battery is missing, open the door and look for a battery; there is no audible alarm for a missing battery. When the power supply begins using battery power, it will beep once and then remain silent. While running on battery power, if the battery begins to run low, the alarm will beep four times per minute. The alarm can be silenced for 24 hours by pushing the blue button on the front of the power supply.

CyberPower PSU:
There are status lights on the front right of the CyberPower PSU. The Replace Battery status light on the right will be red if the battery needs to be replaced. An audible alarm also will sound, with two beeps every three minutes when the battery needs to be replaced. While running on battery power, if the battery begins to run low, the alarm will beep four times every two minutes. The alarm can be silenced for 24 hours by pushing and holding the blue button on the front of the power supply for three seconds. This unit also has a Missing Battery status light, which will be red if no battery is connected to the power supply.

APC PowerShield PSU Model # CP24U12:
There are status lights on the front right of the APC PSU. Refer to the Battery Status light. It will be red if the battery needs to be replaced or if it is missing. There is no audible alarm on this unit. To determine if the battery is missing, open the door and look for a battery.

APC PowerShield PSU Model # CP27U13:
There are status lights on the front right of the APC PSU. Refer to the Battery Status light. It will be red if the battery needs to be replaced or if it is missing. An audible alarm will also sound, with one beep every 15 minutes, when the battery needs to be replaced. To determine if the battery is missing, open the door and look for a battery; there is no audible alarm for a missing battery.

How do I replace the ONT battery?
Open the door, carefully pull the battery off the shelf and remove the black and red wires. Connect the black (-) and red (+) wires onto the new battery noting the proper battery polarity. Slide the new battery onto the shelf and secure. Close the door.

For more information see the owner's manual:
http://www.att.com/support_media/images/pdf/phone/Delta_One_Piece_PSU.pdf
http://www.att.com/support_media/images/pdf/phone/Delta_Two_Piece_PSU.pdf
http://www.att.com/support_media/images/pdf/phone/CyberPower_PSU.pdf
http://www.att.com/support_media/images/pdf/phone/APC_PowerShield_CP24U12_PSU.pdf
http://www.att.com/support_media/images/pdf/phone/APC_PowerShield_CP27U13_PSU.pdf