Bnc/Tnc Connectors; Hex Driver; Sd Card; Non-Magnetic Tools - Garmin G3X Touch Installation Manual

1.5.3

BNC/TNC Connectors

Either BNC or TNC connectors may be required to terminate the antenna cable, depending upon which
antenna is used. Check the antenna installation instructions for detailed information.
1.5.4

Hex Driver

A 3/32" hex drive tool is required to secure the GDU to the panel as described in
Unit Installation, Section 7.6.1
Section 9.6.1 GDU 470 Unit Installation.
1.5.5

SD Card

An SD Card is required to be used as a DataCard. Garmin recommends a 2 GB SanDisk® brand SD card
for GDU 37X units, and an 8 GB SanDisk® brand SD card for GDU 4XX units. SDXC cards are not
supported. See Section
1.5.6

Non-Magnetic Tools

Use of non-magnetic tools (e.g. beryllium, copper, or titanium) is recommended when installing or
servicing the GMU magnetometer. Do not use a screwdriver that contains a magnet when installing or
servicing a magnetometer.
1.5.7 Pneumatic Hoses and Connectors.
Air hoses and fittings are required to connect pitot and static air to the ADAHRS (GSU 25/73). The
ADAHRS (GSU 25/73) has a female 1/8-27 ANPT fitting for each pitot and static port. Use appropriate
aircraft fittings to connect to pitot, static, and Angle of Attack (AOA on GSU 25 only) system lines.
1.5.8 Hardware for GAD 27/GAD 29/GEA 24/GPS 20A/GSU 25
If the installer does not use the applicable installation kit, an example of alternate mounting hardware is:
(4 ea.) #10-32 pan or hex head screws.
1.5.9 Hardware for GSU 73
An example of GSU 73 mounting hardware is: #10-32 pan or hex head screw (4 ea.) and #10-32 self-
locking nut (4 ea). (see Section
190-01115-01
Rev. AC
GDU 45X Unit Installation,
33.5.1, Section 34.5.1, and
19.4.4)
G3X/G3X Touch Installation Manual - Inventory of Materials
Section 8.6.1 GDU 46X Unit Installation, or
Section 35.3.1 for detailed information.
Section 6.6.1 GDU 37X
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