Garmin GTX 23 Installation Manual

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Garmin GTX 23 Installation Manual Manual pdf 45 page image

190-00906-01 GTX 23 Installation ManualRev. C Page B-8At the end of the shielded cable (Item 4), strip “Quick Term Min” to “Quick Term Max” (Table B-4)length of the jacket to expose the shield. Next trim the shield so that at most 0.35 inches remainsextending beyond the insulating jacket. Fold this remaining shield back over the jacket.Connect a Flat Braid (Item 6) to the folded back shield of the prepared cable assembly. The flat braidshould go out the front of the termination towards the connector. It is not permitted to exit the rear ofthe termination and loop back towards the connector (Figure B-5). Make this connection using anapproved shield termination technique.NOTEFAA AC 43.13-1B Chapter 11, Section 8 (Wiring Installation Inspection Requirements)may be a helpful reference for termination techniques.Preferred Method:Slide a solder sleeve (Item 5) onto the prepared cable assembly (Item 4) and connect the Flat Braid(Item 6) to the shield using a heat gun approved for use with solder sleeves. It may prove beneficial touse a solder sleeve with a pre-installed Flat Braid versus having to cut a length of Flat Braid to be used.The chosen size of solder sleeve must accommodate both the number of conductors present in thecable and the Flat Braid (Item 6) to be attached.NOTEReference Section B.2 for recommended solder sleeves and flat braid. The samerecommendations are applicable to this technique.Secondary Method:Solder a Flat Braid (Item 6) to the folded back shield on the prepared cable assembly (Item 4). Ensurea solid electrical connection through the use of acceptable soldering practices. Use care to avoidapplying excessive heat that burns through the insulation of the center conductors and shorts the shieldto the signal wire. Slide a minimum of 0.75 inches of Teflon heat shrinkable tubing (Item 5) onto theprepared wire assembly and shrink using a heat gun. The chosen size of heat shrinkage tubing mustaccommodate both the number of conductors present in the cable as well as the Flat Braid (Item 6) tobe attached.Teflon Heat Shrinkable Tubing:Reference the following MIL-Spec for general Teflon heat shrinkable tubing (M23053/5-X-Y)Figure B-5 Method B.1 (Quick Term) for Shield Termination