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190-01115-01 July, 2019 Revision AK
G3X/G3X Touch
Installation Manual
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AK Page A
© 2019
Garmin Ltd. or its subsidiaries
All Rights Reserved
Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted,
disseminated, downloaded or stored in any storage medium, for any purpose without the express prior
written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual and
of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to print
one copy of this manual or of any revision hereto, provided that such electronic or printed copy of this
manual or revision must contain the complete text of this copyright notice and provided further that any
unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
Garmin International, Inc.
1200 E. 151st Street
Olathe, KS 66062 USA
Garmin (Europe) Ltd.
Liberty House, Hounsdown Business Park
Southampton, Hampshire SO40 9LR U.K.
Garmin aviation product support information can be found at www.flygarmin.com
.
RECORD OF REVISIONS
Revision
Revision
Date
Description
AD 12/18/17 Corrected Figures 11-2 and 11-3
AE 03/07/18 Added GMC 507 info
AF 07/16/18 Added EIS Complete Data Message Format info in Appdx C
AG 11/20/18 Updated per latest software version, various updates
AH 01/25/19 Updated per latest software version, various updates
AJ 04/29/19 Update per latest software version, various updates
AK 07/18/19 Updated info in GDU 4XX configuration Section 35, various updates
190-01115-01 G3X/G3X Touch Installation Manual
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INFORMATION SUBJECT TO EXPORT CONTROL LAWS
This document may contain information which is subject to the Export Administration Regulations
(“EAR”) issued by the United States Department of Commerce (15 CFR, Chapter VII Subchapter C) and
which may not be exported, released or disclosed to foreign nationals inside or outside the United States
without first obtaining an export license. The preceding statement is required to be included on any and all
reproductions in whole or in part of this manual.
CURRENT REVISION DESCRIPTION
Revision Page Number(s) Section Number Description of Change
AK
27-6 27.1 Updated Figure 27-1.6
27-22 27.2 Updated Figure 27-2.5
27-33, 27-34 27.2
Updated configuration guidance in Figure 27-2.15 and
Figure 27-2.16
35-54–35-67 35.4.11.3 Updated screenshots and text in procedure
35-86–35-93 35.4.11.8 Updated Detailed Autopilot Configuration Page Options info
35-100–35-108 35.4.14 Added Trim Configuration Page section
35-109 35.4.14.5 Updated screenshot in Trim System Setup procedure
35-196 35.7.2 Added GNX 375 configuration mode info
35-196 35.7.3 Added GPS 175 configuration mode info
35-199, 35-200 35.8 Added flight plan crossfill info
A-1 A.2 Corrected reference to Trim Configuration page
190-01115-01 G3X/G3X Touch Installation Manual
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DEFINITIONS OF WARNINGS, CAUTIONS, AND NOTES
WARNING
This product, its packaging, and its components contain chemicals known to the State of
California to cause cancer, birth defects, or reproductive harm. This Notice is being
provided in accordance with California's Proposition 65. If you have any questions or
would like additional information, please refer to our website at www.garmin.com/prop65
.
NOTE
The Garmin G3X system includes non-TSO certified products that have received no FAA
approval or endorsement. Consequently the G3X system is not type-certificated and is not
suitable for installation in type-certificated aircraft.
NOTE
Unless otherwise noted all installation guidance, requirements, and instructions apply to
one-display, two-display, three-display, and four-display G3X systems.
NOTE
References to the GDU 37X throughout this manual apply equally to the GDU 370 and
GDU 375 except where specifically noted.
NOTE
References to the GDU 45X throughout this manual apply equally to the GDU 450 and
GDU 455 except where specifically noted.
NOTE
References to the GDU 46X throughout this manual apply equally to the GDU 460 and
GDU 465 except where specifically noted.
NOTE
References to the GDU 4XX throughout this manual apply equally to the GDU 45X,
GDU 46X, and GDU 47X except where specifically noted.
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NOTE
References to the GMC Mode Controller throughout this manual apply equally to the
GMC 305, GMC 307, and GMC 507 except where specifically noted.
NOTE
References to the GSU 25 throughout this manual apply equally to the GSU 25B,
GSU 25C, and GSU 25D except where specifically noted.
NOTE
The term LRU, as used throughout this manual is an abbreviation for Line Replaceable
Unit. LRU is used generically in aviation for a product (such as a GDU 37X or GTP 59)
that can be readily “swapped out” (usually as a single component) for troubleshooting/
repair.
NOTE
All GMU 22 information in this Installation Manual also applies to the GMU 44. The
GMU 44 had previously been used as the G3X magnetometer but has been replaced by the
GMU 22.
NOTE
Connector references JXXX(X) and PXXX(X) are used throughout this document. The
letter “J” or “P” designates the connector (whether on the LRU or wiring harness). “J”
(Jack) refers to the connector on the LRU, and “P” (Plug) refers to the connector on the
wiring harness. “J” or “P” designate the connector only, regardless of contact type (pin
or socket). However GDU 4XX connectors on the LRU are designated as P4X0X.
NOTE
The GDU 37X/4XX products contain a lithium battery that must be recycled or disposed
by professional services according to applicable governing laws. Only Garmin-authorized
service facilities are permitted to perform maintenance on this product.
NOTE
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG,
Inc. and any use of such marks by Garmin is under license.
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SOFTWARE LICENSE AGREEMENT
BY USING THE DEVICE, COMPONENT OR SYSTEM MANUFACTURED OR SOLD BY GARMIN
(“THE GARMIN PRODUCT”), YOU AGREE TO BE BOUND BY THE TERMS AND CONDITIONS
OF THE FOLLOWING SOFTWARE LICENSE AGREEMENT. PLEASE READ THIS AGREEMENT
CAREFULLY. Garmin Ltd. and its subsidiaries (“Garmin”) grants you a limited license to use the
software embedded in the Garmin Product (the “Software”) in binary executable form in the normal
operation of the Garmin Product. Title, ownership rights, and intellectual property rights in and to the
Software remain with Garmin and/or its third-party providers. You acknowledge that the Software is the
property of Garmin and/or its third-party providers and is protected under the United States of America
copyright laws and international copyright treaties. You further acknowledge that the structure,
organization, and code of the Software are valuable trade secrets of Garmin and/or its third-party providers
and that the Software in source code form remains a valuable trade secret of Garmin and/or its third-party
providers. You agree not to reproduce, decompile, disassemble, modify, reverse assemble, reverse
engineer, or reduce to human readable form the Software or any part thereof or create any derivative works
based on the Software. You agree not to export or re-export the Software to any country in violation of the
export control laws of the United States of America.
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TABLE OF CONTENTS
Section 1 Inventory of Materials .....................................................................1-1
1.1 Unpacking Unit................................................................................................................ 1-1
1.2 Required Garmin Equipment ........................................................................................... 1-1
1.3 Optional Garmin Equipment............................................................................................ 1-2
1.4 Optional Garmin LRUs.................................................................................................... 1-4
1.5 Required non-Garmin Equipment.................................................................................... 1-6
1.6 Optional Garmin Equipment (non-LRU)......................................................................... 1-8
1.7 Optional non-Garmin Equipment .................................................................................... 1-8
1.8 Optional 3rd Party Sensors/LRUs.................................................................................... 1-8
1.9 Garmin Software and Documents.................................................................................... 1-8
Section 2 Installation Preparation ..................................................................2-1
2.1 System Overview............................................................................................................. 2-1
2.2 Electrical Considerations ............................................................................................... 2-12
2.3 Wiring/Cabling Considerations ..................................................................................... 2-15
2.4 Mechanical Considerations............................................................................................ 2-24
2.5 LRU/Sensor Installation Information ............................................................................ 2-27
Section 3 GAD 27 (Flaps/Lights/Trim Controller) Installation ...................3-1
3.1 Equipment Description .................................................................................................... 3-1
3.2 Equipment Available ....................................................................................................... 3-3
3.3 General Specifications ..................................................................................................... 3-3
3.4 Mounting Requirements .................................................................................................. 3-3
3.5 Unit Installation ............................................................................................................... 3-3
3.6 Outline and Installation Drawings ................................................................................... 3-4
Section 4 GAD 29/29B (ARINC 429 Adapter) Installation ..........................4-1
4.1 Equipment Description .................................................................................................... 4-1
4.2 Equipment Available ....................................................................................................... 4-2
4.3 General Specifications ..................................................................................................... 4-2
4.4 Mounting Requirements .................................................................................................. 4-2
4.5 Unit Installation ............................................................................................................... 4-2
4.6 Outline and Installation Drawings ................................................................................... 4-3
Section 5 GAP 26 (Pitot/AOA Probe) Installation.........................................5-1
5.1 Equipment Description .................................................................................................... 5-1
5.2 Equipment Available ....................................................................................................... 5-2
5.3 Required Equipment ........................................................................................................ 5-2
5.4 General Specifications ..................................................................................................... 5-2
5.5 Unit Installation ............................................................................................................... 5-2
5.6 Outline and Installation Drawings ................................................................................... 5-7
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Section 6 GDU 37X (Display Unit) Installation .............................................6-1
6.1 Equipment Description .................................................................................................... 6-1
6.2 General Specifications ..................................................................................................... 6-2
6.3 Installation Information ................................................................................................... 6-2
6.4 Unit Installation ............................................................................................................... 6-4
6.5 Antennas .......................................................................................................................... 6-4
6.6 Mounting Requirements .................................................................................................. 6-4
6.7 Outline and Installation Drawings ................................................................................... 6-6
Section 7 GDU 45X (Display Unit) Installation .............................................7-1
7.1 Equipment Description .................................................................................................... 7-1
7.2 General Specifications ..................................................................................................... 7-2
7.3 Installation Information ................................................................................................... 7-2
7.4 Unit Installation ............................................................................................................... 7-3
7.5 Antennas .......................................................................................................................... 7-3
7.6 Mounting Requirements .................................................................................................. 7-3
7.7 Outline and Installation Drawings ................................................................................... 7-4
Section 8 GDU 46X (Display Unit) Installation .............................................8-1
8.1 Equipment Description .................................................................................................... 8-1
8.2 General Specifications ..................................................................................................... 8-2
8.3 Installation Information ................................................................................................... 8-2
8.4 Unit Installation ............................................................................................................... 8-3
8.5 Antennas .......................................................................................................................... 8-3
8.6 Mounting Requirements .................................................................................................. 8-3
8.7 Outline and Installation Drawings ................................................................................... 8-4
Section 9 GDU 470 (Display Unit) Installation ..............................................9-1
9.1 Equipment Description .................................................................................................... 9-1
9.2 General Specifications ..................................................................................................... 9-2
9.3 Installation Information ................................................................................................... 9-3
9.4 Unit Installation ............................................................................................................... 9-4
9.5 Antennas .......................................................................................................................... 9-4
9.6 Mounting Requirements .................................................................................................. 9-4
9.7 Outline and Installation Drawings ................................................................................... 9-5
Section 10 GEA 24 (EIS Interface) Installation.............................................10-1
10.1 Equipment Description ................................................................................................ 10-1
10.2 Equipment Available ................................................................................................... 10-2
10.3 General Specifications ................................................................................................. 10-3
10.4 Unit Installation ........................................................................................................... 10-3
10.5 Mounting Requirements .............................................................................................. 10-3
10.6 Outline and Installation Drawings ............................................................................... 10-4
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Section 11 GI 260 (AOA Indicator) Installation ............................................11-1
11.1 Equipment Description ................................................................................................ 11-1
11.2 Equipment Available ................................................................................................... 11-1
11.3 General Specifications ................................................................................................. 11-2
11.4 Unit Installation ........................................................................................................... 11-2
11.5 Unit Calibration ........................................................................................................... 11-2
11.6 Unit Operation ............................................................................................................. 11-2
11.7 Outline and Installation Drawings ............................................................................... 11-3
Section 12 GMC 305 (AFCS Mode Controller) Installation ........................12-1
12.1 Equipment Description ................................................................................................ 12-1
12.2 Equipment Available ................................................................................................... 12-1
12.3 General Specifications ................................................................................................. 12-2
12.4 Mounting and Wiring Requirements ........................................................................... 12-2
12.5 Outline and Installation Drawings ............................................................................... 12-4
Section 13 GMC 307 (AFCS Mode Controller) Installation ........................13-1
13.1 Equipment Description ................................................................................................ 13-1
13.2 Equipment Available ................................................................................................... 13-1
13.3 General Specifications ................................................................................................. 13-2
13.4 Mounting and Wiring Requirements ........................................................................... 13-2
13.5 Outline and Installation Drawings ............................................................................... 13-4
Section 14 GMC 507 (AFCS Mode Controller) Installation ........................14-1
14.1 Equipment Description ................................................................................................ 14-1
14.2 General Specifications ................................................................................................. 14-2
14.3 Mounting and Wiring Requirements ........................................................................... 14-2
14.4 Outline and Installation Drawings ............................................................................... 14-4
Section 15 GMU 11 (Magnetometer) Installation..........................................15-1
15.1 Equipment Description ................................................................................................ 15-1
15.2 General Specifications ................................................................................................. 15-1
15.3 Equipment Available ................................................................................................... 15-2
15.4 Unit Installation ........................................................................................................... 15-2
15.5 Outline and Installation Drawings ............................................................................... 15-5
Section 16 GMU 22 (Magnetometer) Installation..........................................16-1
16.1 Equipment Description ................................................................................................ 16-1
16.2 General Specifications ................................................................................................. 16-1
16.3 Equipment Available ................................................................................................... 16-2
16.4 Unit Installation ........................................................................................................... 16-2
16.5 Outline and Installation Drawings ............................................................................... 16-6
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Section 17 GPS 20A (WAAS GPS Position Source) Installation .................17-1
17.1 Equipment Description ................................................................................................ 17-1
17.2 Statement of Compliance (per AC 90-114A CHG1)................................................... 17-2
17.3 Equipment Available ................................................................................................... 17-2
17.4 General Specifications ................................................................................................. 17-3
17.5 Mounting Requirements .............................................................................................. 17-3
17.6 Unit Installation ........................................................................................................... 17-3
17.7 Antennas ...................................................................................................................... 17-3
17.8 Antenna Cable Requirements ...................................................................................... 17-3
17.9 Outline and Installation Drawings ............................................................................... 17-4
Section 18 GSA 28 (Autopilot Servo) Installation .........................................18-1
18.1 Equipment Description ................................................................................................ 18-1
18.2 Equipment Available ................................................................................................... 18-2
18.3 General Specifications ................................................................................................ 18-2
18.4 Required Equipment .................................................................................................... 18-4
18.5 Unit Installation ........................................................................................................... 18-5
18.6 Unit Wiring ................................................................................................................ 18-16
18.7 Outline and Installation Drawings ............................................................................. 18-16
Section 19 GSU 25/25B/25C/25D (AHRS/Air Data Sensor Unit) Installation ...
19-1
19.1 Equipment Description ................................................................................................ 19-1
19.2 General Specifications ................................................................................................. 19-3
19.3 Required Equipment .................................................................................................... 19-3
19.4 Unit Installation ........................................................................................................... 19-4
19.5 Outline and Installation Drawings ............................................................................... 19-8
Section 20 GSU 73 (Sensor Unit) Installation ................................................20-1
20.1 Equipment Description ................................................................................................ 20-1
20.2 General Specifications ................................................................................................ 20-2
20.3 Required Equipment .................................................................................................... 20-3
20.4 Unit Installation ........................................................................................................... 20-4
20.5 Outline and Installation Drawings ............................................................................... 20-7
Section 21 GTP 59 (Temperature Probe) Installation ..................................21-1
21.1 Equipment Description ................................................................................................ 21-1
21.2 General Specifications ................................................................................................. 21-2
21.3 Unit Installation ........................................................................................................... 21-2
21.4 GTP 59 Icing................................................................................................................ 21-4
21.5 Outline and Installation Drawings ............................................................................... 21-5
Section 22 GTR 20 (VHF Communications Radio) Installation ..................22-1
22.1 Equipment Description ................................................................................................ 22-1
22.2 Equipment Available ................................................................................................... 22-2
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22.3 General Specifications ................................................................................................. 22-3
22.4 Installation Considerations .......................................................................................... 22-4
22.5 Antenna Considerations............................................................................................... 22-5
22.6 Mounting Considerations............................................................................................. 22-7
22.7 Mounting, Wiring, and Power Checks......................................................................... 22-8
22.8 Outline and Installation Drawings ............................................................................. 22-10
Section 23 GPS/XM Antenna Installation......................................................23-1
23.1 Non-Garmin Antennas................................................................................................. 23-1
23.2 Garmin Antennas ......................................................................................................... 23-2
23.3 Antenna Mounting Considerations .............................................................................. 23-4
23.4 Teardrop Footprint Antenna Installation (GA 35, GA 55, and GA 56)....................... 23-9
23.5 ARINC 743 Footprint Antenna Installation (GA 36, GA 37, GA 55A, GA 57X) .... 23-16
23.6 Non-Structural Mount Installation............................................................................. 23-25
23.7 Outline and Installation Drawings ............................................................................. 23-31
Section 24 Engine/Airframe Sensor Installation ...........................................24-1
24.1 Engine/Airframe Sensor Options................................................................................. 24-1
24.2 Engine Sensor Applications......................................................................................... 24-7
24.3 Engine Sensor Installation ......................................................................................... 24-17
Section 25 Connector Installation Instructions .............................................25-1
25.1 Cable Connector Installation ....................................................................................... 25-1
25.2 Thermocouple Installation into a Backshell ................................................................ 25-1
25.3 Jackscrew Configuration Module Installation into a Jackscrew Backshell ................. 25-3
25.4 Jackscrew Backshell Installation Instructions ............................................................. 25-6
Section 26 LRU Pinouts ...................................................................................26-1
26.1 GAD 27 (Flaps/Lights/Trim Controller)...................................................................... 26-1
26.2 GAD 29/29B (ARINC 429 Adapter) ......................................................................... 26-10
26.3 GDU 37X (Display Unit)........................................................................................... 26-14
26.4 GDU 4XX (Display Unit).......................................................................................... 26-19
26.5 GEA 24 (EIS Interface) ............................................................................................. 26-28
26.6 GI 260 (AOA Indicator) ............................................................................................ 26-43
26.7 GMC 305 (AFCS Mode Controller).......................................................................... 26-45
26.8 GMC 307 (AFCS Mode Controller).......................................................................... 26-47
26.9 GMC 507 (AFCS Mode Controller).......................................................................... 26-49
26.10 GMU 11 (Magnetometer) ........................................................................................ 26-51
26.11 GMU 22 (Magnetometer) ........................................................................................ 26-53
26.12 GPS 20A (WAAS GPS Position Source) ................................................................ 26-54
26.13 GSA 28 (Autopilot Servo) ....................................................................................... 26-56
26.14 GSU 25 (AHRS/Air Data Sensor Unit) ................................................................... 26-59
26.15 GSU 73 (Sensor Unit).............................................................................................. 26-63
26.16 GTP 59 (Temperature Probe) .................................................................................. 26-75
26.17 GTR 20 (VHF Communications Radio).................................................................. 26-76
26.18 GTX 23 (Mode S Transponder)............................................................................... 26-81
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Section 27 G3X w/GSU 25 and/or GAD 29 Interconnect Drawings ............27-1
27.1 Core Interconnect Drawings w/GSU 25 and/or GAD 29 ............................................ 27-1
27.2 External Interconnect Drawings w/GSU 25 .............................................................. 27-12
Section 28 G3X w/GSU 73 Interconnect Drawings .......................................28-1
28.1 Core Interconnect Drawings ........................................................................................ 28-1
28.2 External Interconnect Drawings w/GSU 73 ................................................................ 28-5
Section 29 G3X w/GTR 20 Interconnect Drawings.......................................29-1
29.1 Notes for Section 29 Drawings.................................................................................... 29-2
29.2 Single GTR 20 Interconnect Drawings........................................................................ 29-3
29.3 Dual GTR 20 Interconnect Drawings .......................................................................... 29-7
Section 30 Sensor Wiring Examples ...............................................................30-1
30.1 Notes for Section 30 Drawings.................................................................................... 30-1
30.2 Sensor Wiring Examples w/GEA 24 ........................................................................... 30-2
30.3 Sensor Wiring Examples w/GSU 73 ........................................................................... 30-7
Section 31 Lycoming/Continental Sensor Wiring Examples........................31-1
31.1 Notes for Section 31 Drawings.................................................................................... 31-1
31.2 GEA 24 - Lycoming/Continental Sensor Drawings .................................................... 31-2
31.3 GSU 73 - Lycoming/Continental Sensor Drawings .................................................... 31-5
Section 32 Rotax Sensor Wiring Examples ....................................................32-1
32.1 Notes for Section 32 Drawings.................................................................................... 32-1
32.2 GEA 24 - Rotax Sensor Drawings............................................................................... 32-2
32.3 GSU 73 - Rotax Sensor Drawings ............................................................................... 32-7
Section 33 Jabiru Sensor Wiring Examples..................................................33-1
33.1 Notes for Section 33 Drawings.................................................................................... 33-1
33.2 GEA 24 - Jabiru Sensor Drawings............................................................................... 33-2
33.3 GSU 73 - Jabiru Sensor Drawings............................................................................... 33-4
Section 34 GDU 37X Configuration and Post Installation Checkout..........34-1
34.1 Recommended Test Equipment ................................................................................... 34-1
34.2 Configuration Mode..................................................................................................... 34-2
34.3 Software Loading Procedure ....................................................................................... 34-2
34.4 Configuration Pages..................................................................................................... 34-5
34.5 Garmin Database Updates ....................................................................................... 34-140
34.6 SiriusXM® Activation Instructions (GDU 375 only) ............................................. 34-144
34.7 External Interface Configuration (Garmin units only) ............................................ 34-145
34.8 GDU Splash Screen ................................................................................................. 34-148
34.9 Checklist Editor ....................................................................................................... 34-148
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Section 35 GDU 4XX Configuration and Post Installation Checkout .........35-1
35.1 Recommended Test Equipment ................................................................................... 35-2
35.2 Configuration Mode..................................................................................................... 35-2
35.3 Software Loading Procedure ....................................................................................... 35-3
35.4 Configuration Pages..................................................................................................... 35-5
35.5 Garmin Database Updates ....................................................................................... 35-190
35.6 SiriusXM® Activation Instructions (GDU 455/465 only) ...................................... 35-193
35.7 External Interface Configuration (Garmin units only) ............................................ 35-194
35.8 Sharing G3X Touch Flight Plans (Crossfill) with External IFR Navigators ........... 35-199
35.9 Checklist Editor ....................................................................................................... 35-200
Section 36 Troubleshooting ............................................................................36-1
36.1 General Troubleshooting ............................................................................................. 36-1
36.2 CAN Network Troubleshooting................................................................................... 36-2
36.3 GDU 37X/4XX ............................................................................................................ 36-2
36.4 Air Data Troubleshooting ............................................................................................ 36-3
36.5 Engine Indication Troubleshooting ............................................................................. 36-4
36.6 ADAHRS Troubleshooting.......................................................................................... 36-5
36.7 Post Installation Calibration Procedures ..................................................................... 36-7
36.8 GSU 73 Data Logging ................................................................................................. 36-8
36.9 Sending Troubleshooting Data to Garmin ................................................................. 36-10
Section 37 Maintenance ...................................................................................37-1
37.1 Inspections/Continued Airworthiness/Maintenance .................................................... 37-1
37.2 Return to Service Information ..................................................................................... 37-4
Appendix A Flight Test Plan for Autopilot Tuning........................................A-1
A.1 Introduction.................................................................................................................... A-1
A.2 Flight Test Outline ......................................................................................................... A-1
Appendix B Airframe Specific Installation Guidance ...................................B-1
B.1 Introduction .....................................................................................................................B-1
B.2 Van’s Aircraft..................................................................................................................B-2
B.3 Lancair Aircraft...............................................................................................................B-5
Appendix C RS-232 Text Output Format .......................................................C-1
C.1 Electrical Interface ..........................................................................................................C-1
C.2 Message Output Selection...............................................................................................C-1
C.3 General Message Output Format ....................................................................................C-1
C.4 Attitude/Air Data Message Format .................................................................................C-2
C.5 Engine Data Message Format .........................................................................................C-3
C.6 GPS Data Message Formats............................................................................................C-5
C.7 EIS Complete Data Message Format ..............................................................................C-7
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Appendix D LRU Performance Specifications/Licensing/Compliance ........D-1
D.1 GAD 29.......................................................................................................................... D-1
D.2 GAP 26........................................................................................................................... D-1
D.3 GDU 37X ....................................................................................................................... D-1
D.4 GDU 4XX ...................................................................................................................... D-2
D.5 GEA 24 .......................................................................................................................... D-2
D.6 GMA 245/245R ............................................................................................................. D-3
D.7 GMC 305/307/507 ......................................................................................................... D-3
D.8 GMU 11 ......................................................................................................................... D-4
D.9 GMU 22 ......................................................................................................................... D-4
D.10 GSA 28......................................................................................................................... D-4
D.11 GSU 25......................................................................................................................... D-5
D.12 GSU 73......................................................................................................................... D-6
D.13 GTP 59 ......................................................................................................................... D-7
D.14 GTR 20/200 ................................................................................................................. D-8
190-01115-01 G3X/G3X Touch Installation Manual - Inventory of Materials
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1 INVENTORY OF MATERIALS
This manual provides all of the mechanical and electrical information required for the installation of the
G3X system. This manual is intended to be a step-by-step guide to the installation, therefore it is important
that the steps in all sections be performed in order. All materials that are required/optional for the
installation of the G3X are listed in this section (as such, some of the information in this section is repeated
in following sections).
Before beginning the G3X installation, it is recommended that the installer perform a complete inventory
of all materials listed in this section (some materials are optional and may not be applicable to the
installation). Section 1 should be used to verify that all components ordered from Garmin have been
delivered correctly, and to identify any required materials that are not provided by Garmin.
1.1 Unpacking Unit
Carefully unpack the equipment and make a visual inspection of all contents for evidence of damage
incurred during shipment. If any component of the G3X is damaged, notify the carrier and file a claim. To
justify a claim, save the original shipping container and all packing materials. Do not return any
equipment to Garmin until the carrier has authorized the claim.
Retain the original shipping containers for storage. If the original containers are not available, a separate
cardboard container should be prepared that is large enough to accommodate sufficient packing material to
prevent movement.
1.2 Required Garmin Equipment
1.2.1 Garmin LRU (Line Replaceable Unit) List for G3X systems
Table 1-1 and Table 1-2 list the two available G3X System LRU kits. The standard kit includes the
GSU 25 and GMU 11, the performance kit includes the GSU 25 and the GMU 22. Available GDU
Display Units are listed in Table 1-3
. All other G3X LRUs (listed in Table 1-7) are ordered separately.
Table 1-1 Contents of High Performance G3X LRU Kit* (K10-00016-03)
Item Part Number Quantity
GSU 25D, Unit Only 010-01071-51 1
GMU 22, Unit Only 010-01196-00 1
Configuration Module, EEPROM, Temp 010-12253-00 1
GTP 59 OAT Probe Kit 011-00978-00 1
The High Performance Kit must be used if the aircraft performance exceeds that specified for the
GSU 25, see Section D.11.2
Table 1-2 Contents of G3X Standard LRU (K10-00016-04)
Item Part Number Quantity
GSU 25C, Unit Only 010-01071-50 1
GMU 11, Unit Only 010-01788-00 1
Configuration Module, EEPROM, Temp 010-12253-00 1
GTP 59 OAT Probe Kit 011-00978-00 1
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1.3 Optional Garmin Equipment
1.3.1 Garmin Optional LRU Installation Kits
Table 1-3 Available GDU Display Units
Item Part Number
G3X - GDU 370, 7" Portrait Non-Touch Display** 010-00667-15
G3X Touch - GDU 460, 10.6" Display 010-01057-00
G3X Touch - GDU 465, 10.6" Display with SXM Receiver 010-01057-10
G3X Touch - GDU 470, 7" Portrait Display 010-01765-00
G3X Touch - GDU 450, 7" Landscape Display 010-01056-00
G3X Touch - GDU 455, 7” Landscape Display with SXM Receiver 010-01056-10
*Any combination of G3X Touch displays can be installed in a single system (maximum of four displays)
**Not compatible with G3X Touch displays
Table 1-4 LRU Connector/Installation Kits
LRU
Connector/Installation
Kit Part Number
Installation Kit
Included with LRU?
GAD 27 Flaps/Lights/Trim
Controller
011-03877-00 (Table 3-2) N
GAD 29 ARINC 429 Adapter 011-03271-00 (Table 4-2) N
GAP 26 Air Data Probe N/A N
GDU 37X Display 011-01921-00 (Table 6-1) Y
GDU 45X Display 010-12150-01 (Table 7-1) N
GDU 46X Display 010-12150-00 (Table 8-1) N
GDU 470 Display 010-12150-02 (Table 9-1) N
GDL 39R (9 Pin Connector) 010-11825-20 (Table 1-6) N
GDL 5XR Data Link 010-12498-60 (Table 1-6) N
GEA 24 EIS 011-02886-00 (Table 10-2) N
GMC 305 Mode Controller 010-12034-00 (Table 12-2) N
GMC 307 Mode Controller 010-12421-00 (Table 13-2) N
GMC 507 Mode Controller 010-01946-00 (Table 14-2) N
GMU 11 Magnetometer 011-04349-90, Install Kit (Table 15-3) N
GMU 22 Magnetometer 011-00871-10, Conn Kit (Table 16-3) N
GPS 20A 011-03914-00 (Table 17-3) N
GSA 28 Servo Actuator
011-02950-00, Conn Kit (Table 18-6)
011-02950-01, 90° Conn Kit (Table 18-7
)
N
GSU 25 ADAHRS K10-00181-00, Conn Kit (Table 19-2 ) Y
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1.3.2 GPS/XM Antenna(s)
A Garmin or non-Garmin GPS antenna is required for a G3X installation. A Garmin or non-Garmin XM
antenna is required for G3X installations using SiriusXM® weather. See Section 23
for required materials
for antenna installation including mounting brackets, doubler plates, rivets, hardware, cables, connectors,
and sealant.
GSU 73 ADAHRS/EIS NA Y
GTP 59 Temperature Probe 011-00978-00 (Table 21-2) Y
GTR 20 011-03241-00 (Table 22-3) Y
Garmin GPS and/or XM Antennas NA N
Table 1-5 Contents of GDL 39R Connector Kit (010-11825-20)
Item Part Number Quantity
Backshell w/Hdw, Jackscrew, 9/15 pin 011-01855-00 1
Conn, Receptacle, d-Sub, Crimp Socket, Commercial,
9 CKT
330-00625-09
1
Contact, Sckt, Mil Crimp, size 20, 20-24 AWG 336-00022-02 9
Table 1-6 Contents of GDL 5XR Connector Kit (010-12498-60)
Item Part Number Quantity
Backshell w/Hdw, Jackscrew, 15/26 pin 011-01855-01 1
Conn, Receptacle, d-Sub, Crimp Socket, Commercial,
15 CKT
330-00625-15
1
Contact, Sckt, Mil Crimp, size 20, 20-24 AWG 336-00022-02 16
Table 1-4 LRU Connector/Installation Kits
LRU
Connector/Installation
Kit Part Number
Installation Kit
Included with LRU?
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1.4 Optional Garmin LRUs
Table 1-7 lists optional Garmin LRUs that can be installed with the G3X system. If any of these LRUs are
to be used in this installation, verify that all required installation materials such as connector kits have been
acquired. Installation information for LRUs not documented in this manual can be found in the Installation
Manual for each respective LRU.
Table 1-7 Optional Garmin LRUs
LRU
All Install Info Included
In This Manual?
Section
GAD 27 Flaps/Lights/Trim Controller Yes Section 3
GAD 29 ARINC 429 Adapter Yes Section 4
GAP 26 Air Data Probe Yes Section 5
GDL 39/GDL 39R Data Link No NA
GDL 5XR Data Link No NA
GDU 37X* Display
(if installing more than one)
Yes Section 6
GDU 45X* Display
(if installing more than one)
Yes Section 7
GDU 46X* Display
(if installing more than one)
Yes Section 8
GDU 470* Display
(if installing more than one)
Yes Section 9
GEA 24 EIS Yes Section 10
GI 260 Yes Section 11
GMC 305 Mode Controller Yes Section 12
GMC 307 Mode Controller Yes Section 13
GMC 507 Mode Controller Yes Section 14
GMU 11 Magnetometer Yes Section 15
GNS 4XX/5XX Series Units No NA
GNS 480 GPS/Comm Navigator No NA
GSA 28 Servo Actuator Yes Section 18
GSU 25** ADAHRS Yes Section 19
GSU 73** ADAHRS/EIS Yes Section 20
GTN 6XX/7XX Series Units No NA
GTR 20 Yes Section 22
GTR 200 No NA
GTX Transponder No NA
*One GDU 37X or one GDU 4XX are required
**One GSU 25 and/or GSU 73 is required
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SL30 Nav/Comm Transceiver No NA
SL40 Comm Transceiver No NA
Table 1-7 Optional Garmin LRUs
LRU
All Install Info Included
In This Manual?
Section
*One GDU 37X or one GDU 4XX are required
**One GSU 25 and/or GSU 73 is required
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1.5 Required non-Garmin Equipment
1.5.1 Wiring/Cabling Considerations
The installer will provide all wiring and cabling unless otherwise noted. Use MIL-W-22759/16 (or other
approved wire) AWG #22 or larger wire for all connections unless otherwise specified. The supplied
standard pin contacts are compatible with up to AWG #22 wire. RG-400 or RG-142 coaxial cable with
50 nominal impedance and meeting applicable aviation regulations should be used for the installation.
1.5.2 Contact and Crimp Tools
Table 1-8 lists recommended crimp tools used to build the wiring harnesses for the G3X LRUs, other
equivalent tooling may also be used.
NOTE
Non-Garmin part numbers shown are not maintained by Garmin and consequently are
subject to change without notice.
Table 1-8 Pin Contact and Crimp Tools Part Numbers
LRU Contact Type
Garmin
Contact Part
Number
Recommended
Positioner
Recommended
Insertion/
Extraction Tool
Recommended
Hand
Crimping Tool
GDU 37X
GDU 4XX
Socket, Size 20
336-00022-02
or 336-00094-00
M22520/2-08,
Daniels K13-1
M81969/1-04
for size 22D
pins and
M81969/1-02
for size 20 pins
M22520/2-01
GMC 305/
307/507
Pin, Size 22D
336-00021-00
(MIL P/N
M39029/58-360)
M22520/2-09
Positronic P/N
9502-4,
Daniels P/N K42
GSU 73
GTP 59
011-00979-20
(Config
module w/
EEPROM kit)
011-00981-00
(thermocouple
kit)
GMU 22 Socket, Size 20
336-00022-00
(MIL P/N
M39029/63-368)
M22520/2-08,
Daniels K13-1
011-00979-22
(Config
module w/
Sockets &
Jackscrew kit)
Socket, Size 20,
26-30 AWG
336-00022-01
M22520/2-08,
Daniels K13-1
Use crimp
setting 6 for 28
AWG
GAD 27/29
Socket, Size 20,
20-24 AWG
336-00022-02
M22520/2-08,
Daniels K13-1
GEA 24
(J241, J243,
J244)
GMU 11
GSA 28
GSU 25
GTR 20/200
GAD 29
Pin, Size 20
336-00024-00
(MIL P/N
M39029/64-369)
GEA 24
(J242 only)
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