Icom ID-31A Instruction Manual - Page 27

■ External DC power operation, Operating note

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BATTERY CHARGING 4 ■■External DC power operation An optional CP-12L or CP-19R cigarette lighter cable, for a 12 V cigarette lighter socket, or an OPC-254L external DC power cable can be used for external power. DDOperating note • T he 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 a CP-12L, CP-19R or OPC-254L when connecting a regulated 12 V DC power supply. Use an external DC-DC converter to connect the transceiver through an optional CP-12L, CP-19R or OPC-254L to a 24 V DC power source. • T he voltage of the external power supply must be between 10-16 V DC when using either CP-12L, CP-19R or OPC254L, otherwise, use the battery pack. • Disconnect the power cables from the transceiver when not using it. Otherwise, the vehicle battery will become exhausted. • T he power save function is automatically deactivated when using an external DC power source. 1 Transceiver • CP-12L (Optional) 2 3 4 5 to a cigarette lighter socket (12 V DC) 6 • CP-19R (Optional) to 7 [DC IN] 8 9 BP-271 10 • OPC-254L (Optional) 11 to a 12 V DC (power supply) 12 Black: _ 13 14 White: + 15 16 NOTE: Up to 5 W (approximately) of maximum output power is possible when using external DC power. However, 17 when the supply voltage exceeds 14 V, the built-in protec- 18 tion circuit activates to reduce the transmit output power to approximately 2.5 W. 19 18

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4
BATTERY CHARGING
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■
External DC power operation
An optional CP-12L or CP-19R cigarette lighter cable, for a
12 V cigarette lighter socket, or an OPC-254L external DC
power cable can be used for external power.
D
Operating note
• The 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 a
CP-12L
,
CP-19R
or
OPC-254L
when
connecting a regulated 12 V DC power supply.
Use an external DC-DC converter to connect the transceiv-
er through an optional CP-12L, CP-19R or OPC-254L to a
24 V DC power source.
• The voltage of the external power supply must be between
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 automatically deactivated when
using an external DC power source.
BP-271
• CP-12L
(Optional)
• CP-19R
(Optional)
• OPC-254L
(Optional)
to a cigarette lighter
socket (12 V DC)
to a 12 V DC
(power supply)
White:
+
Black:
_
to
[DC IN]
Transceiver
NOTE:
Up to 5 W (approximately) of maximum output
power is possible when using external DC power. However,
when the supply voltage exceeds 14 V, the built-in protec-
tion circuit activates to reduce the transmit output power to
approximately 2.5 W.