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Pinout for Autocom type B (noise sensor) headset

K75projectbike

New member
Does anyone have a pinout digram for an Autocom type B 7 pin headset? I have found diagram of 7 pin DINs, but none have had the "noise sensor" identified.

I am trying to isolate the Mic output for input to a Zumo 550. I have not had much luck with the autocom part, but I had great results when I placed a 1 to 1 isolation transformer inline with the mic using the other side for the mic input to the Zumo. using a an old Pro 3 box.
 
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