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Old 03-13-2023, 03:41 PM
Cardinal_Biggles Cardinal_Biggles is offline
Join Date: Mar 2023
Location: Houston
Posts: 1
Default 430 / Collins CDI wiring

Im looking at wiring a collins CDI up to a garmin 430. The install manaul for the garmin says i need shieded pairs from the 430 to the CDI (probably physically located about 2 feet of wire length away). The collins install manual only has a collins nav reviever / cdi hook up and does not use shields. Im a bit of a novice and want to do the job correctly so looking for practicle advice on how this should be configured or what an avionics shop would likely do.
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Old 03-13-2023, 07:38 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 8,794

Use some 2 conductor plus shield wire cables. Hook up the two internal wires as shown. Connect the shield braid to ground only at the 430. At the Collins end, cut the shield off 1/2 inch back from the wires, so it cannot short to anything. You can put some heat shrink tubing over the cut if you want it to look nice.
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Old 03-17-2023, 01:00 PM
Radioflyer Radioflyer is offline
Join Date: Nov 2009
Location: Boston
Posts: 270

Cardinal-Biggles...Can you please post a a pic of the full Garmin to Indicator wiring table? I'm also trying to understand my options for indicators and this would help. Thanks.
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Old 03-18-2023, 01:00 PM
Avanza Avanza is offline
Join Date: Jul 2020
Location: Vastervik Sweden
Posts: 315

Here is a link to IM. PDF pg 113.

Good luck
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Old 03-18-2023, 08:37 PM
Radioflyer Radioflyer is offline
Join Date: Nov 2009
Location: Boston
Posts: 270

Thanks for the link to the manual.
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