
Setting Up
Your Battery
Backup
A simple guide
BGW320INDOORONT
1

How to Install
:
PSI Rechargeable Battery Units for your Gateway
What you need:
• (2) PSI Li-75 Power Supplies
• (6) PSI PS36L-EX Batteries
• PSI-BGW320 Adapter Cable
Before you begin:
Each battery stack will provide up to 16 hours of backup power. One battery
stack will be connected to the Gateway to provide automatic backup and will
need to be replaced with the other standby battery stack as needed during
an outage.
Keep standby rechargeable battery stack connected to power source to
maintain charge.
Connect first backup battery:
Disconnect existing black
1 2
power supply from the
Gateway and wall outlet.
Connect the rechargeable
3
battery stack to the Gateway
using supplied power cord.
4
Stack three battery units
and the power supply on the
backplane.
Make sure the battery is On
and the Gateway is working.
Prepare standby backup
rechargeable batteries
Connect the other three rechargeable batteries and the power supply to the
other backplane and plug into an electrical outlet (not controlled by a wall
switch). Note: to get the best power available, you should plug your battery
stack directly into a wall receptacle.
Completed Setup
2

How to Check & Replace:
PSI Rechargeable Battery Units
Important information:
• Each battery stack will provide up to 16 hours of backup power. One stack
will be connected to the Gateway to provide automatic backup and
should be replaced as needed. The other will be a standby battery stack
to use during a power outage.
• Keep all rechargeable batteries connected to a power source to
maintain charge.
Note: Battery Backup unit will not power a cordless phone. It will only power
a corded phone.
Check your batteries:
Replace your batteries:
Unplug the entire battery
1
stack from the Gateway.
Press the Cold Start Button on
3
the Power Supply.
2
4
Connect the fully charged
standby battery stack into
the Gateway.
Press the Power Button on
the Gateway.
It’s important to check your batteries periodically to ensure full charge in
case of a power outage. Your batteries will automatically display the charge
level when turned on—if the battery is exhausted, replace it with one of
the standby units.
Recharge your batteries:
Make sure the old battery is connected to the power outlet so it will recharge
when the power comes back on.
3

How to Install
:
D-cell Unit for your AT&T Fiber Service Box
In your kit:
• D-cell batter holder with cable
• D-cell power supply
• Power cables (2)
You will need to supply 12 D-cell alkaline batteries.
Before you begin:
Determine placement of D-cell unit near the AT&T network box (ONT).
Unit can be laid flat or mounted to wall.
Select the power cable that fits your ONT.
Follow these simple steps:
Unplug existing black
1 2
power supply.
ONT
ONT Power Cable
and Supply
Remove plastic cover from
bottom of power supply.
Connect new power cable to
ONT and D-cell power supply,
then plug into outlet.
ONT
D-Cell Battery
Power Supply
Outlet
Completed Setup (items not to scale)
D-cell Battery Holder
New ONT Power Cable
D-cell Battery Power Supply
(Open Cover)
AT&T Network Box
(
)
ONT
Insert all 12 D-cell batteries
3 4
into the holder.
D-cell Battery Holder
(Open Cover)
Test the unit: Push Test
5
button; LED lights will indicate
power level.
6
Plug holder into power supply.
D-cell Battery
Holder
Turn unit Off when finished
testing. You will need to
turn the unit back on during
a power outage.
D-cell Battery
Power Supply
4

How to Check & Replace:
D-cell Units
Important information:
• It’s important that you periodically check your batteries to ensure they’re
functioning properly. Batteries have a limited lifespan, even if they are not
in use. Older batteries may not provide a full 24 hours of backup. We
recommend that you have a spare set of new alkaline batteries available.
• During a power outage, you may need to replace the batteries more than
once to maintain working service.
• When replacing batteries, replace All of them at the same time with the
same type and brand of alkaline batteries. Caution: Do not mix old and new
batteries or use rechargeable batteries as it could damage the device.
Note: Backup battery will not power a cordless phone, it will only power a
corded phone.
Replace your batteries:
Turn the D-cell unit Off.
1
Open cover of D-cell holder
and remove all 12 of the old
D-cell batteries.
Push Test button on D-cell
3
holder. LED lights will indicate
power level. (See chart below.)
4
Insert the 12 New D-cell
2
batteries into holder.
Turn unit Off when finished
testing. You will need to turn
the unit back on during a
power outage.
Check your batteries:
It’s important to check your batteries from time to time to ensure you’ll have
service if there’s a power outage.
Press Test button on the D-cell holder. The LED lights will indicate how much
charge is le. Replace all 12 batteries with fresh batteries if necessary.
LED Indicator Condition
Good
Fair
Poor
Replace
D-cell Battery Holder
5

Troubleshooting:
For D-cell & PSI Rechargeable Battery Units
If your phone does not have a dial tone during a power outage:
Check your Gateway and
Rechargeable Batteries
Make sure corded phone is plugged into the Gateway.
1
If Gateway does not have power, make sure:
2
• Gateway is plugged into rechargeable battery
• Rechargeable battery is turned On
• Rechargeable battery still has a charge. If not, replace
it with one of the standby rechargeable batteries.
Make sure Gateway is connected to AT&T network box.
3
Check your AT&T Fiber Service Box/ONT
and D-cell Battery Unit
1
Make sure AT&T network box (ONT) has power and is
turned On.
If AT&T network box (ONT) does not have power, make sure:
2
• D-cell holder is plugged into power supply
• D-cell holder is turned On
• Power supply is plugged into AT&T network box (ONT)
• D-cell batteries are installed and have enough charge.
(Push the battery Test button to see the battery
NEED MORE HELP & TROUBLESHOOTING?
PSI Rechargeable Battery Units:
go to www.powertecsolutions.net/solutions/att-solutions/
power level.) If not sufficiently powered, replace All the
D-cell batteries.
D-cell Battery Unit:
go to att.com/dcellbatterybackup or call 800.650.0954
6