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GTX327 to AXP340 wiring

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dan300 View Drop Down
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    Posted: 09 Oct 2018 at 2:57pm
Anybody have the pin-for-pin to do this?
This is what I have:





Edited by dan300 - 09 Oct 2018 at 3:03pm
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forkauto View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote forkauto Quote  Post ReplyReply Direct Link To This Post Posted: 09 Oct 2018 at 3:45pm
Here you go!


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dan300 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dan300 Quote  Post ReplyReply Direct Link To This Post Posted: 09 Oct 2018 at 4:13pm
Thanks for the response, but I don't think that is what I'm looking for.
I need to connect a GTX327 harness to a AXP340.

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Ibraham View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibraham Quote  Post ReplyReply Direct Link To This Post Posted: 10 Oct 2018 at 10:14am
Are you replacing GTX327 with AXP340?
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dan300 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dan300 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Oct 2018 at 10:39am
Yes

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Ibraham View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibraham Quote  Post ReplyReply Direct Link To This Post Posted: 10 Oct 2018 at 11:24am
To be ADS-B compliant, the AXP340 needs an approved WAAS GPS navigator to supply GPS position, which is not the case for the GTX327, therefore you may need to replace the harness. Which WAAS GPS do you have? Do you have an experimental aircraft?
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dan300 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dan300 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Oct 2018 at 9:08pm
Cirrus with two GNS430W.
There's a wire from GPS1 to pin 2 on the GTX327. I think putting it to pin 3 of the secondary connector like shown above takes care of the WAAS in.

Existing wiring:



Edited by dan300 - 10 Oct 2018 at 9:09pm
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Ibraham View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibraham Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2018 at 11:58am
This installation requires an avionics shop with an A&P signoff.  Unless you have weather and traffic, GTX345 may be a better option (will also display weather and traffic on the MFD with release 8.2 software).  FYI, here is the AXP340 basic interconnect diagram.

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dan300 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dan300 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2018 at 12:17pm
Yes, I'm just doing some legwork for my avionics guy. He hasn't done a 340 yet. I have weather and traffic and a used 340. 

Edited by dan300 - 11 Oct 2018 at 12:18pm
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Ibraham View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ibraham Quote  Post ReplyReply Direct Link To This Post Posted: 11 Oct 2018 at 6:14pm
You should call Avidyne tech support, they are very helpful and will provide the avionics tech all the documentation and help needed to get it done.
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