190-01115-01
G3X/G3X Touch Installation Manual - GSU 73 Installation
Rev. AC
Page 19-4
19.3.2 Additional Equipment Required
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Cables: The installer will fabricate and supply all system cables.
•
An example of mounting hardware is: #10-32 pan or hex head screw (4 ea.) and #10-32 self-
locking nut (4 ea)
•
Air hoses and fittings to connect pitot and static air to the GSU 73. The GSU 73 has a female
1/8-27 ANPT fitting for each pitot and static port. Use appropriate aircraft fittings to connect to
pitot and static system lines.
19.4 Unit Installation
Fabrication of a wiring harness is required. Sound mechanical and electrical methods and practices should
be used for installation of the GSU 73. Refer to
for wiring considerations, and to
for pinouts.
Connector kits include backshell assemblies. The backshell assembly houses the configuration module
(P732 only) and a thermocouple reference junction (if applicable). Garmin’s backshell connectors give the
installer the ability to quickly and easily terminate shield grounds at the backshell housing. The
instructions needed to install the Jackscrew Backshell, Configuration Module, and Thermocouple are
located in