Panasonic KX-TDA30 Installation Manual page 45

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Connecting Backup Batteries
1.
Turn off the power switch of the PBX.
2.
Connect the Back-up Battery Cable to a set of 3 identical batteries.
Fuse
Red
Backup Batteries (VRLA 12 V DC x 3)
Battery Connector
Back-up Battery Cable
Power Switch
Black
2.2.6 Backup Battery Connection
Installation Manual
45

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