Icom IC-M803

79
CONNECTIONS AND INSTALLATION
9
9
AF/MOD Pin Pin name Description 
1 MOD+
Modulation input from an external
terminal unit.
Input impedance: More than 600 Ω
Input level: Approximately
0.77 V rms
2 MOD–
Coaxial ground for MOD+. –
3 GND
Ground for digital equipment. –
4 AF+
AF detector output for an external
terminal unit.
Output impedance: Less than 600 Ω
Output level: More than
770 mV rms
5 AF–
Coaxial ground for AF+. –
6 GND
Ground for digital equipment. –
7 NC
No connection. –
8 SEND
Ground this pin to transmit. Ground level: –0.5 to 0.8 V
Input current: Less than 20 mA
9 GND
Ground for digital equipment. –
REMOTE Pin Pin name Description
1 DCD Inputs terminal for carrier detection.
2
RXD Inputs terminal for receive data.
NMEA-OUT NMEA0183 ver 4.10 data output.
3
TXD Outputs transmit data.
NMEA-IN NMEA0183 ver 4.10 data input.
4 DTR Outputs data terminal ready signal.
5 GND Connected to ground.
6 DSR Inputs terminal for a data-set-ready signal.
7 RTS Outputs request-to-send data.
8 CTS Inputs terminal for clear-to-send data.
9 NC No connection.
GPS-DATA Pin Pin name Description
1
NMEA
+
NMEA0183 ver 4.10 data input
+
.
2
NMEA
_
Ground for NMEA data
+
.
15
69
15
69
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