12-Pin Connector 3, Telephone and Microphone Signals

12-Pin Connector 3, Telephone and Microphone Signals






1 Microphone input, (-)
2 not used
3 not used
4 Microphone output, (-)
5 Left telephone audio input signal, (-)
6 Right telephone audio input signal, (-)
7 Microphone input, (+)
8 not used
9 Microphone output, (+)
10 Telephone mute (radio mute)
11 Left telephone audio input signal, (+)
12 Right telephone audio input signal, (+)