Connector Description - Icom IC-FR3000 Series Sales Handbook

• Pin 4, pin 5, pins 16–18 select one of the 32 pre-programmed memory channels. (see table below)
[0]: Hi-Z, [1]: 0 V (D0–D4: +5 V pull up)
D4 D4 D4 D4 D3 D3 D3 D3
Channel Channel Channel Channel
(pin 18) (pin 18) (pin 5) (pin 5)
(pin 18) (pin 18) (pin 5) (pin 5)
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
8 0 0
9 0 1
10 0 1
11 0 1
12 0 1
13 0 1
14 0 1
15 0 1
16 0 1
Remote connector Remote connector
Remote connector Remote connector
Pin No. Pin No.
Pin No. Pin No.
1
2
3
4
5
6
7
8
*About Remote connector (pins 7, 8) and Accessory connector (pin 1): *About Remote connector (pins 7, 8) and Accessory connector (pin 1): *About Remote connector (pins 7, 8) and Accessory connector (pin 1): *About Remote connector (pins 7, 8) and Accessory connector (pin 1):
Depends on the clone setting, BUSY signals are output while receiving a signal
with a matched CTCSS/DCS signal.

Connector Description

D2 D2 D2 D2 D1 D1 D1 D1
(pin 17) (pin 17) (pin 4) (pin 4) (pin16)
(pin 17) (pin 17) (pin 4) (pin 4) (pin16)
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
Pin Name Pin Name
Pin Name Pin Name
Input terminals to transmit the repeater in relation
–PTT
to the external equipment. An opto-isolator is
+PTT
provided to facilitate PTT signals.
Output terminal for AF signals from the AF
–AFOUT
detector circuit via the bandpass filter. Output
+AFOUT
level is fixed, regardless of [AF] control.
–EXTMOD
Input terminal for the modulation circuit.
+EXTMOD
Output terminal for squelch condition
–BUSY
(Open/Close). An opto-isolator is provided to
+BUSY
facilitate BUSY signals.
D0 D0 D0 D0 D4 D4 D4 D4
Channel Channel Channel Channel
(pin16) (pin 18) (pin 18)
(pin16) (pin 18) (pin 18)
0 17 1
1 18 1
0 19 1
1 20 1
0 21 1
1 22 1
0 23 1
1 24 1
0 25 1
1 26 1
0 27 1
1 28 1
0 29 1
1 30 1
0 31 1
1 32 1
Description Description
Description Description
D3 D3 D3 D3 D2 D2 D2 D2 D1 D1 D1 D1
(pin 5) (pin 5) (pin 17) (pin 17) (pin 4) (pin 4)
(pin 5) (pin 5) (pin 17) (pin 17) (pin 4) (pin 4)
0 0 0
0 0 0
0 0 1
0 0 1
0 1 0
0 1 0
0 1 1
0 1 1
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
1 1 1
Specification Specification
Specification Specification
High voltage=PTT ON (transmits)
Hi-Z=PTT OFF
Output impedance: 600
Input impedance: 600
Open collector=BUSY OFF
0 V=BUSY ON (Squelch is opened)
D0 D0 D0 D0
(pin16) (pin16)
(pin16) (pin16)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
16