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BATTERY CHARGING
New2001
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■ External DC power operation
An optional cigarette lighter cable (CP-12L or CP-19R; for 12 V 
cigarette lighter socket)
 or external DC power cable (OPC-254L) 
can be used for external power operation. 
D Operating note
• Power supply voltage must be between 10.0–16.0 V DC. 
NEVER CONNECT OVER 16 V DC directly into the [DC IN] 
jack of the transceiver.
•  BE SURE to use CP-12L,CP-19R or OPC-254L when con-
necting a regulated 12 V DC power supply.
Use an external DC-DC converter to connect the trans-
ceiver through optional CP-12L, CP-19R or OPC-254L to a 
24 V DC power source.
•  The voltage of the external power supply must be within 
10–16 V DC when using either CP-12L, CP-19R or OPC-
254L, otherwise, use the battery pack.
•  Disconnect the power cables from the transceiver when 
not using it. Otherwise, the vehicle battery will become ex-
hausted.
•  The power save function is deactivated automatically dur-
ing external DC power operation.
Transceiver
• CP-12L (Optional)
• CP-19R (Optional)
• OPC-254L (Optional)
to cigarette lighter
socket (12 V DC)
to 12 V DC
(power supply)
White: +
Black: _
to 
[DC IN]
NOTE: Up to 5 W (approx.) of maximum output power is 
available when using external DC power. However, when 
the supplied voltage exceeds 14 V, the built-in protection 
circuit activates to reduce the transmit output power to 
2.5 W 
(approx.).