Double-Shield Termination Technique (Quick Term) - Method; Id Program Pins (Strapping; Method C.2 Double-Shield Termination - Garmin GDU 37X Installation Manual

B.1.8 Double-Shield Termination Technique (Quick Term) - Method C.2
In addition to method C.1, described previously, another suitable method for double-shielding wires is
presented in Figure B-9. All restrictions set forth for Method C.1 (Table B-5) are still applicable.
The maximum length of the braids should be approximately 4 inches.
Figure B-9 Method C.2 Double-Shield Termination
B.1.9 ID Program Pins (Strapping)
The GDU 37X rear connector (J3701) is electrically isolated. For installations
using programming pins, a ground pin must be tied to the connector shell.
ID Program Pins provide a ground reference used by the hardware as a means of configuration for system
identification. The following instructions will illustrate how this ground strapping should be accomplished
with the Jackscrew Backshell:
1. Cut a 4 inch length of 22 AWG insulated wire.
Flat Braid is not permitted for this purpose. Use only insulated wire to avoid
inadvertent ground issues that could occur from exposed conductors.
2. Strip back approximately 0.17 inches of insulation and crimp a contact (item 6) to the 4" length of 22
AWG insulated wire. It is the responsibility of the installer to determine the proper length of insulation
to be removed. Wire must be visible in the inspection hole after crimping and the insulation must be 1/
64 – 1/32 inches from the end of the contact as shown in Figure B-3.
3. Insert newly crimped pins and wires into the appropriate connector housing location as specified by
the installation wiring diagrams.
4. At the end opposite the pin on the 22 AWG insulated wire strip back 0.2 inches of insulation.
5. Terminate this end via the ring terminals with the other Flat Braid per Steps 8 and 11 pertaining to
shield termination. If this ground strap is only wire to terminate, attach a Ring terminal, #8, insulated,
18-22 AWG (MS25036-149).
GDU 37X Installation Manual
190-01054-01
NOTE
NOTE
WARNING
Page B-13
Revision C