Connector Information - Icom IC-M804 Instruction Manual

8
CONNECTIONS AND INSTALLATION

■ Connector information

MICROPHONE Pin Pin name
1
2
3
u q
4
y i w
t e
r
5
6
7
8
GPS-DATA Pin Pin name
1
2 1
2
TUNER Pin Pin name
1
2
4 3 2 1
3
4
AF/MOD Pin Pin name
1
2
3
5 4 3 2 1
4
5
9 8 7 6
6
7
8
9
71
Description
Audio input from the microphone
MIC+
element.
Key detection.
MIC SW
AF output controlled with [VOL].
AF1
Connected to pin 4 in the microphone.
AF input.
AF2
Connected to pin 3 in the microphone.
PTT switch input.
PTT
When GND, transmits.
Connected to ground.
GND
MIC− Coaxial ground for MIC+.
AF− Coaxial ground for AF1 and AF2.
NMEA 0183 ver 4.10 data input (+).
NMEA+
NMEA− Ground for NMEA data (−).
Description
Key signal input.
KEY
Start/Through signal output.
START
13.6 V 13.6 V output.
Antenna current detector output.
ANTC
Description
Modulation input from an external
terminal unit.
MOD+
MOD− Coaxial ground for MOD+.
AF detector output for an external
terminal unit.
AF+
AF− Coaxial ground for AF+.
Ground this pin to transmit.
SEND
Input/output pin.
CWK
Goes to GND when transmitting.
13.6 V 13.6 V output when power is ON.
ALC voltage input.
ALC
Ground for digital equipment.
GND
Specification
Input impedance:
–
–
–
–
–
–
–
Description
Specification
−0.5 to 0.8 V during tuning.
Pulled up 8 V, 0 V (100 msec) as a
start signal.
Maximum current:
–
Specification
Input impedance:
Input level:
Input impedance:
Output impedance: Less than 600 Ω
Output level:
Output impedance: Less than 600 Ω
Ground level:
Input current:
–
Maximum current:
Input impedance:
–
1.74 kΩ ± 20%
2 A
More than 600 Ω
Approximately
250 mV rms
More than 600 Ω
More than
770 mV rms
−0.5 ~ 0.8 V
Less than 20 mA
1 A
More than 1 Ω