2.4 Installation of Optional Cards and Unit
General Installation
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2.4.11 Battery Adaptor Connection
User-supplied car batteries can be used as a backup power supply in the event of a power
failure. In case of a power failure, the batteries automatically maintain power to the main unit.
The optional Battery Adaptor (KX-A46) is required.
The Battery Adaptor should not be exposed to direct sunlight. Keep the adaptor and car
batteries away from heating appliances and fire. Place car batteries in a well ventilated place.
Connection
When connecting the battery adaptor, keep the following in mind.
• Check the polarities of batteries and wires.
• Make sure that you do not short the batteries and wires.
• To connect the two batteries, use an accessory wire.
1. Assemble the cords and two car batteries (12 VDC each) as shown.
+ -
+ -
Battery
Adaptor
Fuse
Holder
Accessory
wire
12 VDC
12 VDC
Yellow (-)
Blue (-)
Car batteries
Red (+)