TX/TX•RX
EXT SP REMOTE
ACC
RX
GND
AC
BATTERY
[TX(TX•RX) ANT] (p. 5)
[RX ANT] (p. 5)
TX•RX antenna required
for installing an internal
duplexer.
GROUND (p. 5)
[DC POWER INPUT TERMINAL] (p. 8)
12 V
battery
Supplied
DC power cable
+ red
_ black
Crimp
Solder
SM-25 DESKTOP
MICROPHONE
(optional)
MICROPHONE CONNECTOR (Front panel view)
HM-100N/TN HAND
MICROPHONE
(optional)
q +9 V DC output (Max. 10 mA)
w I/O port for PC programming
e NC
r M PTT (Input port for TX control)
t Microphone ground
y Microphone input
u Ground
i M MONI (Input port for monitor control)
q
i
CAUTION: DO NOT short pin 1 to ground as this can
damage the internal 9 V regulator. DC voltage is applied
to pin 1 for microphone operation. Take care when
using a non-Icom microphone.
Make sure the back up battery is correctly
connected. Use a cable with following
current capacity. Solder or clamp the cable
lug when connecting the power cable to the
backup battery to prevent voltage drops.
Power cable current capacity: 25 A or more
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