Panel Cutout Template; Grounded Connector Shell; Unit Installation; Mounting Requirements - Garmin G3X Installation Manual

5.4 Unit Installation

Fabrication of a wiring harness is required. Sound mechanical and electrical methods and practices are
recommended for installation of the GDU 37X. Refer to
Section 15.2 for pinouts.
Connector kits include backshell assemblies. Garmin's backshell connectors give the installer the ability
to quickly and easily terminate shield grounds at the backshell housing. The instructions needed to
assemble the backshell connector w/Shield Block grounding system are located in
NOTE
The GDU 37X rear connector (J3701) is electrically isolated. For installations using
shielded cables, a ground pin must be tied to the connector shell (Figure 5-3).
SIGNAL GROUND

5.5 Mounting Requirements

Refer to Appendix B for outline and installation drawings.
5.5.1 Unit Installation
The GDU 37X is installed by holding the unit flush with the instrument panel and fastening the four
captured 3/32" hex socket head screws to the panel as shown in
5.5.2

Panel Cutout Template

Figure 5-4 can be used as a template when marking the panel for cutout. Dimensions on the figure are to
verify accuracy of printout only, see
drawing is also available for download at
G3X Installation Manual - GDU 37X Installation
Page 5-4
X
Figure 5-3 Grounded Connector Shell
Figure B-4.2 for complete cutout dimensions. A .dxf version of the
www.garmin.com.
Section 2.3 for wiring considerations, and to
Figure B-4.1.
Section 16.
190-01115-01
Rev. L