Connector Information - Icom IC-M803 Instruction Manual

9
CONNECTIONS AND INSTALLATION

■ Connector information

ACC Pin Pin name
1
2
3
4
7 6
8
3 1
5 4
5
2
6
7
8
*
MICROPHONE Pin Pin name
1
2
3
q u
w
i y
4
e
t
r
5
6
7
8
TUNER Pin Pin name
1
2
4 3 2 1
3
4
DC 13.6 V Pin Pin name
1–3
1 2 3
4 5 6
4–6
78
Description
CW and FSK keying input.
CWK
Ground line for AF signal.
AF GND
Input/Output pin.
SEND
Ground this pin to transmit.
Modulator input.
Usable when pin 3 is grounded.
MOD
AF detector output.
AF
Fixed, regardless of [VOL] position.
No connection.
NC
13.6 V output when power is ON.
13.6 V
ALC voltage input.
ALC
DC GND Common ground.
Description
Audio input from the microphone
MIC+
element.
No connection.
NC
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
Connected to the ground.
GND
Coaxial ground for MIC+.
MIC–
Coaxial ground for AF1 and AF2.
AF–
Description
Key signal input.
KEY
Start/Through signal output.
START
13.6 V output.
13.6 V
Negative ground.
E
Description
+ +
DC input .
_ _
DC input .
Specification
Input level: –0.5 to 0.8 V
–
Ground level: –0.5 to 0.8 V
Input current: Less than 20 mA
Input impedance: More than 10 kΩ
Input level: Approximately
100mV rms
Output impedance: Less than 4.7 kΩ
Output level: 100–300 mV rms
–
Output current: Maximum 1 A
Control voltage: –3 to 0 V
Input impedance: More than 10 kΩ
–
Specification
Input impedance: 1.74 kΩ ± 20 %
–
–
–
When grounded, transmits.
–
–
–
Specification
–0.5 to 0.8 V during tuning.
Pulled up 8 V, 0 V (100 msec) as a start
signal.
Maximum current: 2 A
Ground terminal for above signals.
Specification
Maximum power consumption:
30 A typical.
–