AT&T DC UPS Operation Manual

CALIFORNIA PUBLIC UTILITIES

COMMISSION

Advice Letter Filing Summary Sheet

(PAL)

(Date Filed / Received Stamp by CPUC Industry Division)

Date AL served on parties: July 20, 2010

Company Name: AT&T California

Address: 525 Market Street, #1944
City, State, ZIP: San Francisco, CA 94105
Filing #:

37837

Requested
Effective Date

:

July 20, 2010

CPUC Utility Number U -1001-C

GRC-LEC URF-Carrier Other

Commission Resolution Requested
Carrier of Last Resort (See D.96-10-066)

AL Tier I II III

Name: Email Address: Phone No.: Fax No.:

Mary Liz DeJong [e-mail] [phone] [phone]

Filer

Certif.

(Name, email address & Phone and FAX numbers are Required for “Filer”)

Tariff Schedules:

For Contract Keyword, Type: Government Other

N/A

[e-mail] [phone]

Keyword:

Date Executed

Compliance

No. Tariff
Sheets: 0

Contract
Total Rev ($)

Subject of filing:

(Service(s) included)

Backup Power – Customer Education

Authorization for filing:

(Resolution #, Decision #, etc.)

D.10-01-026

Affected services:

(Other services affected, pending or replacement AL filings)

Rate Element(s) affected and % change:

(Non-recurring and / or recurring)

Customer Notice Required (if so, please attach)

Notes/Comments:

(Other information & reference to advice letter, etc.)

File Protest and/or Correspondence to:

Director, Communications Division
505 Van Ness Ave., San Francisco, CA 94102

and if you have email capability, ALSO email to

[e-mail]

Protest also must be served on utility:

(see utility advice letter for more information)

GRC-LEC = Cost of Service LEC Carrier
URF-Carrier = Uniform Regulatory Framework Carrier

:

(see D.06-08-030/D.07-09-019)
OTHER = Wireless (CMRS) Carrier

(FOR CPUC USE ONLY)

 Resolution Required
 Executive Action Resolution Req’d.
 TD Suspension on: ___ / ____ / ____
 Comm. Suspension on: ___ / ___ / ___

Resolution No.: T - ____________

Rev. 09/24/07

Supv. / Analyst ________________ / ________________

Due Date to Supv.: _______________________________

Analyst Completion Date: _________________________

Supervisor Approval Date: ________________________

AL / Tariff Effective Date: _________________________

Notes: ___________________________________________

AT&T California [e-mail]
525 Market Street
Room 1944
San Francisco, CA 94105-2727 www.att.com

July 20, 2010

U 1001 C
Advice Letter No. 37837

Public Utilities Commission of the State of California

This advice letter is filed in compliance with Ordering Paragraph 2 of Decision (D.)10-01-026, which
requires facilities-based providers of telephony services who provide service to residential customers using
coaxial cable, fiber-optic cable or other technologies that require backup power on the customer’s premises
to file an information-only compliance advice letter detailing their customer education programs that comply
with D.10-01-026, including information and outreach.

Attached to this filing are copies of the materials that will be provided to the residential customers of AT&T
California who are provided telephony services using a technology that requires backup power on the
customer’s premises. Attachment A hereto is a copy of the materials that will be provided to new
customers by the time the service is installed. Attachment B hereto is a copy of the notice that will be
provided to existing customers on or before October 18, 2010 and annually thereafter. AT&T California’s
office for Disabled and Aging Customers will ensure that the material is available in formats its customers
can utilize. Copies of the material will be available in the languages in which AT&T markets its residential
services, including Spanish, Vietnamese, Korean, Chinese, Tagalog, Japanese, Russian and Polish.
However, to limit the size of the Advice Letter filing, only the English documents are attached.

In compliance with General Order 96-B, we are serving a copy of this advice letter on interested parties who
have requested it. We are also serving a copy on parties to Rulemaking 07-04-015. This advice letter
with attachments may be viewed on AT&T California’s Web-Site at https://ebiznet.att.com/calreg/

. If there

are any questions regarding the distribution of this advice letter, call 415.778.1299.

Anyone may object to this advice letter, which was filed July 20, 2010, by sending a written protest to:
Telecommunications Advice Letter Coordinator, Communications Division, 505 Van Ness Avenue,
3rd Floor, San Francisco, CA 94102-3298. The protest must state specifically the grounds on which it is
based. The protest must be received by the Telecommunications Advice Letter Coordinator no later than
20 days after the date that the advice letter was filed. On or before the day that the protest is sent to the
Telecommunications Advice Letter Coordinator, the protestant must send a copy of the protest to
Eric Batongbacal, 525 Market Street, #1944, San Francisco, CA 94105 (fax number 415.543.3766). If this
advice letter was served via e-mail, the protest must be served to AT&T California via e-mail at
[e-mail]. To obtain information about the Commission’s procedures for advice letters and
protests, go to the Commission’s Internet site (www.cpuc.ca.gov

) and look for document links to General

Order 96-B.

Yours truly,

AT&T California

Executive Director

Attachments

AT&T California Advice Letter Service List

Via U.S. Mail

Shascom 9-1-1 Shascom 9-1-1 Tyco Electronics Power Systems Integra Telecom Holdings, Inc.
Joy Willis Kathy Galey Natasha Hood Sheila Harris
Operations Manager Systems Administrator 2043 Loggia Manager, Government Affairs
3101 South Street 3101 South Street Newport Beach, CA 92660-9039 1201 NE Lloyd Blvd., Ste. 500
Redding, CA 96001 Redding, CA 96001 Portland, OR 97232

Via e-mail

[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
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[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
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[e-mail] [e-mail]
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[e-mail] [e-mail]
[e-mail] [e-mail]

AT&T California Advice Letter Service List

Page 2

Via e-mail

[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]
[e-mail] [e-mail]

ATTACHMENT A: MATERIALS PROVIDED TO NEW CUSTOMER BY TIME OF INSTALLATION

Important Customer Information Regarding your AT&T Voice and Internet Service

Traditional Telephone Service over Fiber to the Premises

AT&T DC UPS Operation Manual
CyberPower PSU

U-verse Voice

Back-up Power for RG & ONT
Back-up Power for iNID

ATTACHMENT B: ANNUAL NOTICE

Traditional Telephone Service over Fiber to the Premises
Notice
Material found at att.com/batterybackup

U-verse Voice
Notice
Material found at att.com/newbattery

Important Customer Information Regarding your AT&T Voice and Internet Service

Please retain for you r records

Required Optical Network Terminal Battery Backup Power

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 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. (If you have AT&T Internet or U-verse Voice service(s), there are additional
requirements for battery backup power for the Residential Gateway—see Note #1 below).

Optical Network Terminal Backup Battery Replacement
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 1.800.472.2879 or

www.gsbattery.com. Be sure to have the

battery model number available, which is PX12072-HG. The battery number is also located on the label
on the side of the battery. AT&T does not supply replacement batteries.

You may also be able to purchase replacement batteries through other suppliers (e.g., Batteries Plus,
Radio Shack and via the Internet from Amazon or Sears). Batteries must be of the 12-volt - 7.2 amp hour
variety with F2 Faston connectors and a size not to exceed 6.05” Length x 2.6” Depth x 4.05” Height.
Locations where batteries are available are subject to change.

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).

Determine the Power Supply Unit (PSU) type

On the front of the 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. See also the images
below.

Delta PSU CyberPo wer PSU

How to tell when to replace your battery
Delta PSU:

There are status lights on the front right of the Delta 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 fifteen 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.

ATTACHMENT A

ATTACHMENT A - Page 1 of 33

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.

For more information see the owner’s manual: att.com/batterybackup.

CyberPower PSU:

There are status lights on the front right of the CyberPower 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 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. The Missing Battery status light will be red if no
battery is connected to the power supply.

For more information see the owner’s manual: att.com/batterybackup.

Replacing the 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.

NOTE #1: If you have AT&T U-verse services (voice, high speed Internet, and/or TV), you must also have
battery backup power for the Residential Gateway for your AT&T U-verse services to function during a
power outage. For Residential Gateway battery-replacement and recycling information contact BELKIN
at 866-539-5791 or www.belkin.com/gatewaybattery. For more information, please refer to your Feature
Guide and your Belkin® | Residential Gateway Battery Backup User Manual.

NOTE #2: If you have Internet Service, you must provide battery backup power for your computer, if you
would like to have access to the Internet during a power outage. For example, your computer could be
plugged into an Uninterruptible Power Source (UPS), available at certain home and electronics stores.

NOTE #3: If you have a monitored home alarm that uses AT&T voice or Internet service as the
communications pathway, your monitored home alarm will not function during a power outage without
battery backup power for your AT&T voice or Internet service, as applicable. (AT&T voice service requires
ONT battery backup power, and AT&T U-verse services, including AT&T U-verse voice service, requires
both ONT and Residential Gateway battery backup power to function during a power outage).

NOTE #4: 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.

NOTE #5: A new, fully charged ONT backup battery will provide four to eight hours of backup power.
Actual results will vary, depending, among other things, on battery age, usage patterns, and
environmental conditions, including temperature extremes and fluctuations. 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.

If you have any a dditional questions, please call 1.800.ATT.2020 or 1.800.288.2020.

ATTACHMENT A

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AT&T DC UPS

Operation Manual

(Leave with Customer)

DC UPS Operation Manual, Rev 1.0 Page: 1 of 8

ATTACHMENT A

ATTACHMENT A - Page 3 of 33

DC UPS Operation Manual, Rev 1.0 Page: 2 of 8

TABLE OF CONTENTS

1 .................................................................................................................................................................................................3 PRODUCT INTRODUCTION

1.1

GENERAL DESCRIPTION.....................................................................................................................................................................................................3

1.2 COMPONENTS ......................................................................................................................................................................................................................3

2 .............................................................................................................................................................................................. 4 IMPORTANT SAFETY NOTES

2.1

ELECTRICAL WARNINGS ...................................................................................................................................................................................................4

2.2 .........................................................................................................................................................................................................4 BATTERY WARNINGS

2.3 SAFETY WARNING LABEL ..................................................................................................................................................................................................5

3 ..............................................................................................................................................................................................................................6 OP RATIONE

C

ONTROL3.1 ............................................................................................................................................................................................................................6

3.2 ..........................................................................................................................................................................................................7 OPERATIONAL LEDS

3.3 ...............................................................................................................................................................................................................................7 ALARMS

3.4 ...............................................................................................................................................7 ALARM LEDS AND CORRESPONDING AUDIBLE ALARMS

3.5 AUDIBLE ALARM ................................................................................................................................................................................................................7

4 ........................................................................................................................................................................................................................ 8 MAINTENANCE

4.1

MAINTENANCE MODE........................................................................................................................................................................................................ 8

4.2 CUSTOMER BATTERY REPLACEMENT ..............................................................................................................................................................................8

TABLE OF FIGURES

Figure 1: DC UPS Power Supply and ONT System Configuration...................................................................................................................3

Figure 2: Warning Label .......................................................................................................................................................................................5

Figure 3: DC UPS Front Panel LEDs and Control ..............................................................................................................................................6

Figure 4: DC UPS Front Panel LEDs ...................................................................................................................................................................7

Figure 5: Battery Replacement ...........................................................................................................................................................................8

TABLE OF TABLES

Table 1: Customer Button Operation ..................................................................................................................................................................6

Table 2: LED Indicators ........................................................................................................................................................................................7

Table 3: Audible Alarm .........................................................................................................................................................................................7

Table 4: Audible Alarm Actions...........................................................................................................................................................................7

ATTACHMENT A

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1 PRODUCT INTRODUCTION

1.1 General Description

The DC UPS (ONT Uninterruptable Power Supply with Battery Back-Up Unit) is designed to be
mounted inside a customer premises. The DC UPS converts 120/230Vac to 12Vdc and provides
four to eight hours of backup battery power for lifeline POTS and Ethernet services in the ONT.

Alarm outputs are available on the DC UPS to monitor the status of the backup battery
(On/Low/Faulty/Missing). The DC UPS indicates its status to the resident with LEDs and audible
alarms and to the outdoor ONT by a signal return connection.

1.2 Components

The DC UPS consists of a dedicated 120V/230ac to 12Vdc power supply with Battery Backup
and dedicated support cables.

The DC UPS houses a dedicated battery charger to maintain a 12Vdc, 7.2Ah lead-acid sealed
battery, battery monitoring and alarm circuitry. It contains four indicator LEDs to provide
operational status at a glance, status audible alarms, and one customer-operation button to
silence the audible alarm for 24 hours.

Figure 1: DC UPS Power Supply and ONT System Configuration

DC UPS Operation Manual, Rev 1.0 Page: 3 of 8

ATTACHMENT A

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DC UPS Operation Manual, Rev 1.0 Page: 4 of 8

2 IMPORTANT SAFETY NOTES

 ONLY qualified installation and repair personnel should service this power supply.
 SAVE THESE INSTRUCTIONS - This manual contains important instructions for the

DC UPS units that should be followed during maintenance.

 Batteries may produce hazardous currents and may present a burn hazard if

damaged or shorted.

 The following precautions should be observed when working on the unit:

1. Remove watches, rings, or other metal objects.

2. Wear protective clothing and eye protection when working with batteries and installing
this equipment.

3. Always carry a water supply to wash eyes and/or skin if exposed to battery electrolyte.

4. Use tools with insulated handles.

5. Examine the packing container for damage. Notify the carrier immediately if damage is
present.

6. Do not disassemble the unit.

7. Do not operate near water or excessive humidity.

8. Keep liquid and foreign objects from getting inside the unit.

9. Do not operate close to gas or fire.

10. Do not operate unit near leaking liquid or if any liquid residue is present.

11. Immediately unplug Power Supply from AC if you see liquid leaking

12. ABP power source needs to use Alkaline battery (1.5V*12pcs)

2.1 Electrical Warnings

 Servicing this equipment may require working with protective covers removed and utility

power connected. Use extreme caution during these procedures.

 Check that the power cord(s), plug(s), and outlets are in good condition.
 No user serviceable components other then the battery are present in the DC UPS.

2.2 Battery Warnings

 Battery Warranty is top-charge date plus thirty-six months. Replacement battery should be

PX12072F2-HG. Replacement battery can be ordered by contacting GS Battery at 1-800­472-2879 or www.gsbattery.com.

 Danger of explosion if battery is incorrectly connected or replaced.
 Worn-out or damaged batteries are considered environmentally unsafe. Always recycle used

batteries or dispose of the batteries in accordance with all federal, state and local
regulations.

 Any gel or liquid emissions from the sealed lead-acid (SLA) battery contain sulfuric acid,

which is harmful to the skin and eyes. Emissions are electrically conductive and corrosive.

 Batteries may produce explosive gases. Keep all open flames and sparks away from

batteries.

 Batteries contain or emit chemicals known to the State of California to cause cancer and

birth defects or other reproductive harm. Battery post terminals and related accessories
contain lead and lead compounds. Wash hands after handling (California Proposition 65).

 Wear protective clothing and eye protection whenever installing, maintaining, servicing, or

replacing batteries.

 If any battery emission contacts the skin, immediately and thoroughly wash with water.

Follow approved chemical exposure procedures.

ATTACHMENT A

ATTACHMENT A - Page 6 of 33

 Neutralize any spilled battery emission with the special solution contained in an approved

spill kit or with a solution of one pound Bicarbonate of soda to one gallon of water. Report
chemical spills and seek medical attention if necessary.

 Never use un-insulated tools or other conductive materials when installing, maintaining,

servicing or replacing batteries.

 A battery showing signs of cracking, leaking, or swelling should be replaced immediately

with a battery of identical type and rating.

2.3 Safety Warning Label

The AC power cord is supplied with the warning label “DO NOT UNPLUG! – Power Supply for
Voice, 911 Dialing, and Battery Charging” attached to the cord.

Figure 2: Warning Label

! DO NOT UNPLUG! –

Power Supply

for Voice, 911 Dialing, and Battery Charging.

DC UPS Operation Manual, Rev 1.0 Page: 5 of 8

ATTACHMENT A

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3 OPERATION

3.1 Control

Figure 3: DC UPS Front Panel LEDs and Control

One user control is present in the form of one blue button on the front cover of the DC UPS.
This alarm-silence button will quiet the audible alarm for 24 hours. After 24 hours the alarm will
reactivate if the fault condition has not been corrected.

Function Symbol Type Location Function

Alarm
Silence

Push

Front
Cover

Press & hold 1~2 seconds to mute alarm for 24hrs.

Table 1: Customer Button Operation

DC UPS Operation Manual, Rev 1.0 Page: 6 of 8

ATTACHMENT A

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3.2 Operational LEDs

Figure 4: DC UPS Front Panel LEDs

Four status LEDs are displayed on the front panel of the DC UPS. The operation of the DC UPS
can be assessed using these LEDs.

Table 2: LED Indicators

3.3 Alarms

There are audible and visual alarm signals to alert the customer to abnormal and/or service
affecting conditions present in the DC UPS.

3.4 Alarm LEDs and Corresponding Audible Alarms

TYPE Condition

Buzzer

ON Battery

Battery being discharged

Beeps ONCE during switchover to
battery back-up

Low Battery

Reached about 90% discharge Beeps 4 times per minute

Replace Battery

Battery failed self test Beep once every 15 minutes

Missing Battery

No battery installed or battery
disconnected

None

Table 3: Audible Alarm

3.5 Audible Alarm

TYPE Condition

Buzzer

Input Power Fail

Loss of input power

1 second beep at power loss

Replace Battery

Battery failed self test Beep once every 15 minutes

Low Battery

Reached about 90% discharge

Beeps 4 times/minute

Table 4: Audible Alarm Actions

DC UPS Operation Manual, Rev 1.0 Page: 7 of 8

ATTACHMENT A

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4 MAINTENANCE

4.1 Maintenance Mode

Every 45 days the DC UPS automatically self tests the battery to determine its remaining useful
life. No user intervention is needed. If the unit detects a failed battery, the “Replace Battery”
LED indicator on the unit will light and the audible alarm will beep once every 15 minutes.

4.2 Customer Battery Replacement

Battery replacement is detailed on a label located inside the front cover of the DC UPS.
Remove the Battery:

1. Open the front cover of the DC UPS by depressing the tab located at bottom of unit.

2. Detach the Velcro and pull out the old battery.

3. Disconnect the battery terminals (“+” & “-“) of DC UPS.

4. Remove the battery.

Install the Battery:

1. Reconnect “+” & ”-“ terminals to the new identical type battery.

2. Install the new battery.

3. Attach the Velcro and make sure the wires of the battery are free and not pinched by the
battery or door.

4. Close the door of the DC UPS.

Figure 5: Battery Replacement

DC UPS Operation Manual, Rev 1.0 Page: 8 of 8

ATTACHMENT A

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CyberPower ATT3612V3S (Leave Behind Manual) Page: 1 of 11

CyberPower ATT36A12V3S

(Leave Behind Manual)

ATTACHMENT A

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CyberPower ATT3612V3S (Leave Behind Manual) Page: 2 of 11

TABLE OF CONTENTS

1 PRODUCT INTRODUCTION .................................................................................................................3

1.1 G

ENERAL DESCRIPTION ................................................................................................................3

1.2 C

OMPONENTS........................................................................................ .......................................3

2 IMPORTANT SAFETY NOTES............................................................................... ...............................4

2.1 E

LECTRICAL WARNINGS........................................................................................ ........................4

2.2 B

ATTERY WARNINGS ....................................................................................................................4

2.3 S

AFETY WARNING LABEL..............................................................................................................5

3 POWER SUPPLY OVERVIEW....................................................................... .... .... ... .... .... .... ....... .... .....6

3.1 O

VERVIEW....................................................................................................................................6

4 OPERATION ..........................................................................................................................................7

4.1 S

TART-UP....................................................................................................................................7

4.2 C

ONTROLS ...................................................................................................................................7

4.3 O

PERATIONAL LEDS ....................................................................................................................7

4.4 A

UXILLARY POWER CONNECTION..................................................................................... .............8

4.5 A

LARMS............................................................................................................... ........................8

5 MAINTENANCE .....................................................................................................................................9

5.1 M

AINTENANCE MODE....................................................................................................................9

5.2 C

USTOMER BATTERY REPLACEMENT............................................................................................ .9

6 SPECIFICATIONS................................................................................................................................11

TABLE OF FIGURES

Figure 1: CyberPower Power Supply and ONT System Configuration.................................................3

Figure 2: Warning Label..............................................................................................................................5

Figure 3: Unit Overview (Front)..................................................................................................................6

Figure 4: Front Panel LED and Controls ...................................................................................................7

Figure 5: Auxiliary Power Connection.......................................................................................................8

Figure 6-8:

Customer Battery Replacement ……………………………………………………………… 9-10

TABLE OF TABLES

Table 1: Customer Button Operation.............................................................. ...........................................7

Table 2: LED Indicators...............................................................................................................................7

Table 3: Alarms............................................................................................................................................8

Table 4: Specifications..............................................................................................................................11

ATTACHMENT A

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CyberPower ATT3612V3S (Leave Behind Manual) Page: 3 of 11

1 PRODUCT INTRODUCTION

1.1 General Description

The ONT-BBPSU (Optical Network Terminal Uninterruptable Battery Backup Power Supply Unit)
is designed to be mounted inside a customer premises and provides power to the ONT. The
Optical Network Terminal (ONT) is an equipment box typically installed on the outside of your
home, where the fiber network terminates and the inside wiring for your home originates. The
BBPSU supports wireline voice communications services by converting 120/230Vac to 12Vdc.
AT&T supplies the initial backup battery for the BBPSU to 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. When equipped with a new, fully charged battery, the BBPSU
provides four to eight hours of backup battery power. Actual results will vary, depending,
among other things, on battery age, usage patterns, and environmental conditions. To
conserve battery backup power for emergency calls, you should not use Internet services during
a power outage.

1.2 Components

The ATT3612V3S unit consists of a dedicated 120/230Vac to 12Vdc power supply with Backup
Battery and dedicated support cables.

The ATT3612V3S unit houses a dedicated battery charger to maintain a 12Vdc, 7.2Ah sealed
lead-acid battery, battery monitoring and alarm circuitry. It contains four indicator LEDs to
provide operational status at a glance, status audible alarms, and one customer-operation
button to silence the audible alarm for 24 hours.

Figure 1: CyberPower Power Supply and ONT System Configuration

ATTACHMENT A

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