Battery Installation and Removal
The TG852 Telephony Gateway supports a Lithium-Ion backup battery to provide
continued telephone service during power outages. 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 Gateway and must be installed.
The TG852 supports the following battery model:
• Basic backup battery — provides up to 8 hours of backup time, depend-
ing on your Telephony Gateway model and usage.
Basic Battery Installation and Replacement
Touchstone TG852 Telephony Gateway User’s Guide
Safety
Getting
Started
Battery
Installation
Installation
Ethernet
Configuration Usage Troubleshooting Glossary
12
Basic Backup Battery (green)
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