Chapter 4

Battery Installation and Removal

Introduction

The TG2472 Telephony Gateway supports a Lithium-Ion backup battery to provide

continued telephone service during power outages. The battery backup is not intended to

take the place of AC power.

Note:

For safety and regulatory purposes, batteries are shipped outside of the Telephony

Gateway and must be installed.

The TG2472 supports the following battery models:



Basic backup battery: provides up to 4 hours of backup time, depending on your

Telephony Gateway model and usage. It may be light gray or black.

Basic Backup Battery (Gray)

Basic Backup Battery (Black)

Refer to

Basic Battery Installation and Replacement

(page 17).



Extended backup battery: provides up to 8 hours of backup time, depending on model

and usage. It has a strap between the battery guides. This is the standard battery for the

TG2472.

Extended Backup Battery

Refer to

Extended Battery Installation and Replacement

(page 18).

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Chapter 4

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Battery Installation and Removal

Your cable company may include a backup battery with your Telephony Gateway. You can

order any of the batteries shown here at

.

Basic Battery Installation and Replacement

This model of the Telephony Gateway has the ability to provide continued telephone

service during power outages. The battery backup is not intended to take the place of AC

power.

Use this procedure to install and to replace the backup battery.

1.

Press down and pull back on the latch holding the battery door (on the bottom of the

Telephony Gateway). Pull the door toward you. Set the door aside in a safe place.

1 - Latch End

CAUTION

Risk of equipment damage

Improperly inserting the battery may damage the battery connector in the Telephony

Gateway. Carefully follow the instructions in the next step to avoid damage.

2.

Hold the battery pack so that the guides on the battery align with the slots on the

Telephony Gateway and slide the battery into the bay.

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Chapter 4

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Battery Installation and Removal

1 - Battery Slots

2 - Battery Guides

Note:

Batteries will not insert completely into the Telephony Gateway if not oriented

correctly. The battery should slide into the bay without significant force. Line up the guides on

the battery with the slots in the battery bay.

3.

Push the battery pack into the bay until it seats into place.

If you are taking the

battery out of the Telephony Gateway, position your finger in the battery

opening area and use leverage to dislodge the battery while pulling it

straight back.

Note:

The Telephony Gateway will not begin operating until you apply AC power.

4.

Replace the door. To do so, place the hinge tabs of the battery door into the receiver

slots inside the Telephony Gateway battery compartment on the opposite end of the

battery opening. Rotate the door toward the unit until the latch snaps back into place.

1 - Battery Compartment

2 - Receiver Slot

3 - Hinge Tab

Note:

Telephony Gateways use a Lithium-Ion battery pack. Please recycle or dispose of the

battery responsibly and in accordance with local ordinances.

Extended Battery Installation and Replacement

This model of the Telephony Gateway has the ability to provide continued telephone

service during power outages. The battery backup is not intended to take the place of AC

power.

Use this procedure to install or replace the backup battery.

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January 2015

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Chapter 4

:

Battery Installation and Removal

1.

Press down and pull back on the latch holding the battery door (on the bottom of the

Telephony Gateway). Pull the door toward you. Set the door aside in a safe place.

1 - Latch End

CAUTION

Risk of equipment damage

Improperly inserting the battery may damage the battery connector in the Telephony

Gateway. Carefully follow the instructions in the next step to avoid damage.

2.

Hold the battery pack so that the guides on the battery align with the slots on the

Telephony Gateway and slide the battery into the bay.

1 - Battery Slots

2 - Battery Guides

3 - Battery Pull Strap

Note:

Batteries will not insert completely into the Telephony Gateway if not oriented

correctly. The battery should slide into the bay without significant force. Line up the slots in the

battery bay with the guides on the battery and apply even pressure on both ends of the battery.

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Chapter 4

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Battery Installation and Removal

3.

Push the battery pack into the bay until it latches into place.

If you are taking the

battery out of the Telephony Gateway, use the battery pull strap to dislodge

the battery.

Note:

The Telephony Gateway will not begin operating until you apply AC power.

4.

Replace the door. To do so, place the tabs of the battery door into the slot inside the

Telephony Gateway battery compartment. Rotate the door toward the front of the

Telephony Gateway until the latch snaps back into place.

1 - Battery Compartment

2 - Receiver Slot

3 - Hinge Tab

Note:

Telephony Gateways use a Lithium-Ion battery pack. Please recycle or dispose of the

battery responsibly and in accordance with local ordinances.

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January 2015

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