B-11 Shielded Cable Preparations For Garmin Connectors - Garmin GDU 370 Installation Manual

Table B-11. Shielded Cable Preparations for Garmin Connectors
Backshell Size Insert Arrangement
14
1. At one end of a shielded cable (item 4) measure a distance between "Window Min" to "Window
Max" (Table B-11) and cut a window (max size 0.35") in the jacket to expose the shield (Figure
B-16). Use caution when cutting the jacket to avoid damaging the individual braids of the shield.
When dealing with a densely populated connector with many cables, it may prove beneficial to
stagger the windows throughout the "Window Min" to "Window Max" range. If staggering is not
needed the "Ideal Window" length is recommended.
Suggested tools to accomplish the window cut:
•
Coaxial Cable Stripper
•
Thermal Stripper
•
Sharp Razor Blade
2. Connect a Flat Braid (item 6) to the shield exposed through the window of the prepared cable
assembly (item 4) from step 1. The Flat Braid should go out the front of the termination towards
the connector. It is not permitted to exit the rear of the termination and loop back towards the
connector (Figure B-16). Make this connection using an approved shield termination technique.
FAA 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
to use 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
the cable and the Flat Braid (item 6) to be attached.
Recommended Solder Sleeve
A preferred solder sleeve would be the Raychem S03 Series with the thermochromic temperature
indicator (S03-02-R-9035-100, S03-03-R-9035-100, S03-04-R-9035-100). These solder sleeves come
with a pre-installed braid and effectively take the place of items 5 and 6. For detailed instructions on
product use, reference Raychem installation procedure RCPS 100-70.
Raychem recommended heating tools:
•
HL1802E
•
AA-400 Super Heater
•
CV-1981
•
MiniRay
•
IR-1759
G3X Installation Manual – Appendix B
190-01115-01
Float (in)
Min
19 1.35
NOTE
Max Ideal Min
1.60 1.50 2.10
Window (in)
Max Ideal
4.60 3.60
Page B-21
Revision A