Need help with Mux wiring with Uavionix Echo and Garmin Transponder. See Diagram

[charosenz]

I have a Garmin GTX327. An ACK encoder with Serial out and a Uavionix Echo and SkyFYX-EXT GPS. I get pressure Alt on the transponder but the Echo is not reporting Pressure ALT. I am using the Uavionix Echo MUX cable. I have the latest echo Software. I am going to attach my diagram that I created in WORD showing my connections. I will also attach the MUX wiring instructions, which I believe I have followed.

I have the Echo ALT as well. but I am not using it as I would prefer to have the encoder supply Pressure baro for both the Transponder and the echo. I have an email in to Lou at Uavionix last Monday and I have left him voicemail. He is usually very good with getting back to me but I am sure he is very busy.

I would really appreciate hearing from those of you who have first hand experience wiring up with the Mux.

Thanks.
Charlie Rosenzweig

 

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[kent Ashton]

 

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