Appendix A - Db15 Radio Connector - microHAM DIGI KEYER Manual

Pin # Label
1 Power +13.5V
9 CAT IN
2 CAT OUT
10 SQL1
3 SQL2
11 PTT
4 CW
12 AUX
5 FSK
13 AUDIO OUT S
6 AUDIO OUT GND
14 AUDIO IN MAIN S
7 AUDIO IN MAIN G
15 AUDIO IN SUB S
8 AUDIO IN SUB G
SHELL GND
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APPENDIX A – DB15 RADIO CONNECTOR
Description
12 - 16V DC input
Control port input
Control port output
Level squelch input
Impedance squelch input
PTT output "open collector"
CW output "open collector"
reserved
FSK output "open collector"
Radio AUDIO input signal
Radio AUDIO input ground
Radio AUDIO output signal main receiver
Radio AUDIO output ground
Radio AUDIO output signal sub receiver
Radio AUDIO output ground
Radio and power GND
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