Battery Installation and Replacement
(TM602G Only)
The TM602G Telephony Modem supports an optional Lithium-Ion backup battery to
provide backup in the event of a local power loss. The battery backup is not in-
tended to take the place of AC power.
Note: For safety and regulatory purposes, batteries are shipped outside of the
Telephony Modem and must be installed.
The TM602G supports the following battery models:
• Basic backup battery — provides up to 5 hours (black) or 8 hours (grey)
of backup time, depending on your Telephony Modem model and usage. It
may be light grey or black.
Basic Battery Installation
Basic Battery Removal
• Extended backup battery — provides up to 12 hours of backup time, de-
pending on model and usage. It has a strap between the battery guides.
Extended Battery Installation
Extended Battery Removal
• Maximum backup battery — provides up to 24 hours of backup time, de-
pending on model and usage. It replaces the battery door, and increases the
height of the Telephony Modem by about 5/8 inch (16 mm).
Maximum Battery Installation
Maximum Battery Removal
Your cable company may include a backup battery with your Telephony Modem.
You can order any of the batteries shown here at http://yourbroadbandstore.com/
Touchstone TM602 Telephony Modem User’s Guide
Safety
Getting
Started
Battery
Installation Installation
USB
Drivers
Ethernet
Configuration Usage Troubleshooting Glossary
14
Basic Backup Battery
Extended Backup Battery
Maximum Backup Battery
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