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GTX327 to AXP340 wiring |
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dan300 
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Joined: 09 Oct 2018 Location: 63367 Status: Offline Points: 10 |
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 Topic: GTX327 to AXP340 wiringPosted: 09 Oct 2018 at 2:57pm |
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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
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Joined: 30 Apr 2018 Location: Maryland Status: Offline Points: 51 |
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Posted: 09 Oct 2018 at 3:45pm |
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Here you go!
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dan300
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Posted: 09 Oct 2018 at 4:13pm |
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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
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Joined: 21 May 2016 Location: KHWO Status: Offline Points: 363 |
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Posted: 10 Oct 2018 at 10:14am |
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Are you replacing GTX327 with AXP340?
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dan300
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Posted: 10 Oct 2018 at 10:39am |
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Yes
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Ibraham
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Posted: 10 Oct 2018 at 11:24am |
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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
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Posted: 10 Oct 2018 at 9:08pm |
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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
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Posted: 11 Oct 2018 at 11:58am |
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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
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Posted: 11 Oct 2018 at 12:17pm |
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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
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Posted: 11 Oct 2018 at 6:14pm |
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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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