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ICOM IC-FR3000 Instruction Manual: Panel Description ......................... 1

Icom ic-fr3000: instruction manual.

   
Accessory connector (continued)
Pin No.
Pin Name
15
M/S OUT
16
D0
17
D2
18
D4
19
EXT PTT
20
RSSI
21–24
AGND
25
DC GND
• 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
D3
Channel
(pin 18)
(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
Description
Output terminal for master/slave signal.
Input terminal for selecting memory channel.
Input terminal for selecting memory channel.
Input terminal for selecting memory channel.
Input terminal for PTT signal.
Output terminal for RSSI (Received Signal Strength Indica-
tor) signal.
Analog ground
Ground for +15 V DC
D2
D1
D0
(pin 17)
(pin 4)
(pin16)
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
PANEL DESCRIPTION
Open collector=OFF, 0V=ON
+5 V pull up, Active=L
+5 V pull up, Active=L
+5 V pull up, Active=L
+5 V pull up, Active=L
Output impedance: 1 kΩ (approx.)
D4
D3
Channel
(pin 18)
(pin 5)
17
1
0
18
1
0
19
1
0
20
1
0
21
1
0
22
1
0
23
1
0
24
1
0
25
1
1
26
1
1
27
1
1
28
1
1
29
1
1
30
1
1
31
1
1
32
1
1
1
Specification
D2
D1
D0
(pin 17)
(pin 4)
(pin16)
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
4

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