Battery Installation and Replacement
Many Telephony Modem models support an optional Lithium-Ion backup battery.
The TM604G supports the following battery models:
•
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.
•
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).
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 TM604 Telephony Modem User’s Guide
13
