Appendix A - Connectors - microHAM micro2R u2R User Manual

Pin # Label
1 CW
6 GND
2 PTT
7 PTTIN
3 MIC
8 MIC GND
4 HPL
9 HPG
5 HPR
Pin # Label
1 PS/2 DATA
2 RESPAD
3 GND
4 +5 V
5 PS/2 Clock
6 WinKey Button
SHELL GND
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APPENDIX A – CONNECTORS
RADIO 1, RADIO 2 - DB9
Description
CW output "open collector"
Connected to system ground and case
CW output "open collector"
active when closed to ground, max load: 1 mA at 5V
Microphone signal output
Microphone ground
Left headphone input
Headphones ground
Right headphone input
PS/2 – miniDIN 6
Description
TTL PS/2 DATA line
Input for resistive keypad (FH-2), max.+5V/1mA
Connected to the system ground and case.
+5V output, max.100mA.
TTL PS/2 CLOCK line
Connected to WinKeyer2 chip pin 13
Connected to system ground and case
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