Kingfisher Plus+ Hardware Manual
PC-1 Modem Board: Analogue Radio Interface
The analogue radio option board provides an FSK interface to
external analogue radios (typically Trio or Maxon).
Radio Option boards must be factory modified to suit Maxon
Radios (resistor R15 (3K3) is replaced with a 150K resistor).
The default Radio Option card is used with Trio and Tait radios.
Please indicate which Radio you are using when ordering a
radio option card.
PC-1 Analogue Radio Board Connections
RJ12 Pin
Direction
Radio Function
1
OUT
DTR
2
OUT
+12 V low power
3
OUT
RTS
4
IN
DCD
5
COM
GND (0 V)
6
IN
CTS
7
IN
RXA
8
OUT
TXA
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
Page 126