Panasonic KX-TDA600

Connecting Each Shelf to Its Own Set of Backup Batteries
1. Turn off the battery switch on the PSU.
2. Connect each Back-up Battery Cable to its own set of 3 identical backup batteries.
Red
Black
Battery Connector
Battery Switch
Back-up Battery Cable
Fuse
Backup Batteries (VRLA 12 V DC x 3)
ON
OFF
Installation Manual 109
2.2.11 Backup Battery Connection