ARRIS TG2472G-NA User Guide - Manual (Page 16)

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).
Release 24 STANDARD 1.1 January 2015 Touchstone TG2472 Telephony Gateway User Guide 16