micro
HAM ©
2019
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APPENDIX A – DB15 TRANSCEIVER CONNECTOR
Pin #
Label
Description
1
AUXPWR OUT
8V DC output, max. 1mA
9
CAT IN
Control port input
2
CAT OUT
Control port output
10
N/A
Not connected
3
N/A
Not connected
11
PTT
PTT output "open collector"
4
CW
CW output "open collector"
12
N/A
Not connected
5
FSK
FSK output "open collector"
13
AUDIO OUT S
Radio AUDIO input signal
6
AUDIO OUT GND
Radio AUDIO input ground
14
AUDIO IN MAIN S
Radio AUDIO output signal of main receiver
7
AUDIO IN MAIN G
Radio AUDIO output ground main receiver
15
AUDIO IN SUB S
Radio AUDIO output signal of sub receiver
8
AUDIO IN SUB G
Radio AUDIO output ground of sub receiver
SHELL
GND
Radio and power GND
22