Connector Description - Icom IC-FR3000 Series Sales Handbook

3-1-3
Accessory connector Accessory connector Accessory connector Accessory connector
Pin No. Pin No. Pin Name Pin Name
Pin No. Pin No. Pin Name Pin Name
1 BUSY OUT Output terminal for busy signal.
2 COAXIAL SW Output terminal for coaxial switching (antenna switching) Signal.
3 M/S IN Input terminal for master/slave signal.
4 D1 Input terminal for selecting memory channel.
5 D3 Input terminal for selecting memory channel.
6 EXT RPT/BASE Input terminal for repeater/base operating mode switching signal.
7 EXT MONI Input terminal for monitor function.
8 EXT DTCS Input terminal for continuous tone (CTCSS/DTCS) signal.
Input terminal for the modulation signals applied to input of the
9 EXTMOD IN B
splutter filter circuit.
Input terminal for the modulation signal applied to input of the pre-
10 EXTMOD IN A
emphasis circuit via the bandpass filter.
Output terminal for AF signals from the AF detector circuit via the
11 AF OUT
bandpass filter. Output level is fixed, regardless of [AF] control.
Output terminal for AF signals from the AF detector circuit.
12 DISC OUT
Output level is fixed, regardless of [AF] control.
Output terminal for +15V DC while in AC operation. (While in DC
13 +15V
operation, same as input DC.)
14 TX OUT Output terminal for transmission state.
15 M/S OUT Output terminal for master/slave signal.
16 D0 Input terminal for selecting memory channel.
17 D2 Input terminal for selecting memory channel.
18 D4 Input terminal for selecting memory channel.
19 EXT PTT Input terminal for PTT signal.
20 RSSI Output terminal for RSSI (Received Signal Strength Indicator) Signal.
21-24 AGND Analog ground
25 DC GND Ground for +15 V DC

Connector Description

Description Description
Description Description
Specification Specification
Specification Specification
Open collector=OFF, 0 V=ON
Open collector=OFF, 0 V=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
+5 V pull up, Active=L
Input impedance: 100 k (approx.)
Input impedance: 600 (approx.)
Input impedance: 600 (approx.)
Output impedance: 1 k (approx.)
Output impedance: 1 k (approx.)
Output current: Less than 1 A
Open collector=OFF, 0 V=ON
Open collector=OFF, 0 V=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 k (approx.)
15