Garmin G3X Touch Installation guide

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190-01115-01 July, 2017 Revision AC
G3X/G3X Touch
Installation Manual
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AC Page A
© 2017
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 and warranty information can be found at www.flygarmin.com.
RECORD OF REVISIONS
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.
Revision
Revision
Date
Description
V 11/10/15 Added GAD 27 info, various updates
W 03/31/16 Various updates
Y 06/10/16 Updated GSA 28 drawings, various updates
Z 08/12/16 Updated per latest software
AA 11/18/16 Added GPS 20A Statement of Compliance info, various updates
AB 03/28/17 Added GMU 11 and GDU 470 info, various updates
AC 07/20/17 Added GDL 5XR info, various updates
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AC Page i
CURRENT REVISION DESCRIPTION
Revision Page Number(s) Section Number Description of Change
AC
1-2–1-4, 1-7 1.3.1, 1.4 Added GDL 5XR info and corrected GDU 470 install kit info
2-3, 2-7, 2-9,
2-11, 2-13, 2-20,
2-25
2 Updated Section 2 to include GDL 5XR info
7-4, 8-4 7.6.2, 8.6.2 Added info regarding .dxf cutout template
9-3 9.3.1 Updated contents of GDU 470 install kit
9-4 9.6.2, 9.6.3 Added info regarding .dxf cutout template and drill guide info
9-5–9-8 9.7 Updated Figure 9-3 through 9-6
12-2 12.4.2 Added info regarding .dxf cutout template
13-2 13.4.1 Added info regarding .dxf cutout template
23-7 23.2.2 Updated Rotax FADEC sensors info
23-15, 23-16 23.3.1.1, 23.3.2.1 Updated thermocouple installation guidance
24-4 24.3 Updated reference to P4X02 connectors
25-5 25.1.6 Corrected Discrete Inputs description
25-6 25.1.8 Updated Lighting Bus description
25-18 25.4.1 Updated connector references
25-34, 25-36 25.5.9, 25.5.12 Added GP input info
25-57 25.13.2 Added note regarding GSU 25 power output
25-72 25.16.1 Corrected GTR 20 connector orientation
26-14, 26-16,
26-24
26.2
Updated Figure 26-2.2, p. 4, Added Figure 26-2.4 for the
GDL 5XR, Updated Figure 26-2.11
and Figure 26-2.12
28-3, 28-9 28.2, 28.4 Updated Fig 28-2.1 and Figure 28-4
29-1, 29-5, 29-6 29 Updated Figure 29-1, Figure 29-2.2 page 2, and Figure 29-2.3
33-2 33.3 Added note regarding SW updates
33-3 33.3.2 Added LRU software loading procedure
33-110 33.4.14.2 Added Mach Number label
33-124–33-128 33.4.19.3.2 Updated engine/airframe input configuration info
33-140 33.4.20 Added note regarding database updates
34-3 34.3 Added note regarding SW updates
34-3 34.3.2 Added LRU software loading procedure
34-105 34.4.12 Added note regarding flap movement
34-123 34.4.20 Added Mach Number label
34-134–166 34.4.26 Updated engine/airframe configuration info
34-173 34.5 Added note regarding database updates
35-4 35.4 Added note regarding static pressure sensor re-calibration
35-5 35.6.1 Added magnetic heading troubleshooting info
35-7 35.6.2 Added data log files info
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AC Page ii
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.
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AC Page iii
NOTE
References to the GSU 25 throughout this manual apply equally to the GSU 25B 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.
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AC Page iv
1. FCC
Contains FCC ID: QOQWT32I
NOTE
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) this device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
FCC RF Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
End users must follow the specific operating instructions for satisfying RF exposure compliance. This
transmitter meets both portable and mobile limits as demonstrated in the RF Exposure Analysis. This
transmitter must not be co-located or operating in conjunction with any other antenna or transmitter except
in accordance with FCC multi-transmitter product procedures.
2. IC
Contains IC: 5123A-BGTWT32I
NOTE
This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the
following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
Cet appareil est conforme aux normes RSS sans licence d’Industrie Canada. Son fonctionnement est
soumis aux conditions suivantes : (1) cet appareil ne doit pas causer d’interférences et (2) doit accepter
toute interférence,y compris les interférences pouvant entraîner un fonctionnement indésirable de
l’appareil.
NOTE
Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and
maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio
interference to other users, the antenna type and its gain should be so chosen that the equivalent
isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.
Selon les réglementations d’Industrie Canada, cet émetteur radio ne doit fonctionner qu’avec une antenne
d’une typologie spécifique et d’un gain maximum (ou inférieur) approuvé pour l’émetteur par Industrie
Canada. Pour réduire les éventuelles perturbations radioélectriques nuisibles à d’autres utilisateurs, le type
d’antenne et son gain doivent être choisis de manière à ce que la puissance isotrope rayonnée équivalente
(P.I.R.E.) n’excède pas les valeurs nécessaires pour obtenir une communication convenable.
190-01115-01 G3X/G3X Touch Installation Manual
Rev. AC Page v
Aviation Limited Warranty
All Garmin avionics products are warranted to be free from defects in materials or workmanship for the
earlier of: 2 years or 800 flight hours from the date of purchase for new TSO remote-mount and TSO panel-
mount products; 1 year or 400 flight hours from the date of purchase for new Non-TSO remote-mount* and
Non-TSO panel-mount*, portable products and any purchased newly-overhauled products; 6 months or 200
flight hours for factory repaired or newly-overhauled products exchanged through a Garmin Authorized
Service Center. Within the applicable period, Garmin will, at its sole option, repair or replace any
components that fail in normal use. Such repairs or replacement will be made at no charge to the customer
for parts or labor, provided that the customer shall be responsible for any transportation cost. This Limited
Warranty does not
apply to: (i) cosmetic damage, such as scratches, nicks and dents; (ii) consumable parts,
such as batteries, unless product damage has occurred due to a defect in materials or workmanship; (iii)
damage caused by accident, abuse, misuse, water, flood, fire, or other acts of nature or external causes; (iv)
damage caused by service performed by anyone who is not an authorized service provider of Garmin; or (v)
damage to a product that has been modified or altered without the written permission of Garmin. In
addition, Garmin reserves the right to refuse warranty claims against products or services that are obtained
and/or used in contravention of the laws of any country.
This Limited Warranty also does not apply to, and Garmin is not responsible for, any degradation in the
performance of any Garmin navigation product resulting from its use in proximity to any handset or other
device that utilizes a terrestrial broadband network operating on frequencies that are close to the frequencies
used by any Global Navigation Satellite System (GNSS) such as the Global Positioning Service (GPS). Use
of such devices may impair reception of GNSS signals.
THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF
ALL OTHER WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING ANY
LIABILITY ARISING UNDER ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, STATUTORY OR OTHERWISE. THIS WARRANTY GIVES YOU
SPECIFIC LEGAL RIGHTS, WHICH MAY VARY FROM STATE TO STATE.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE OR
INABILITY TO USE THE PRODUCT OR FROM DEFECTS IN THE PRODUCT. SOME STATES DO
NOT ALLOW THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE
ABOVE LIMITATIONS MAY NOT APPLY TO YOU.
Garmin retains the exclusive right to repair or replace (with a new or newly-overhauled replacement
product) the product or software or offer a full refund of the purchase price at its sole discretion. SUCH
REMEDY SHALL BE YOUR SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF
WARRANTY.
Online Auction Purchases: Products purchased through online auctions are not eligible for warranty
coverage. Online auction conrmations are not accepted for warranty verification. To obtain warranty
service, an original or copy of the sales receipt from the original retailer is required. Garmin will not replace
missing components from any package purchased through an online auction.
International Purchases: A separate warranty may be provided by international distributors for devices
purchased outside the United States depending on the country. If applicable, this warranty is provided by
the local in-country distributor and this distributor provides local service for your device. Distributor
warranties are only valid in the area of intended distribution. Devices purchased in the United States or
Canada must be returned to the Garmin service center in the United Kingdom, the United States, Canada,
or Taiwan for service.
*All new G3X units, including Non-TSO remote-mount or Non-TSO panel-mount, are warranted to be free
from defects in materials or workmanship for the earlier of: 2 years or 800 flight hours from the date of
purchase.
190-01115-01 G3X/G3X Touch Installation Manual
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TABLE OF CONTENTS
PARAGRAPH PAGE
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.................................................................................... 1-5
1.6 Optional Garmin Equipment (non-LRU)......................................................................... 1-7
1.7 Optional non-Garmin Equipment .................................................................................... 1-7
1.8 Optional 3rd Party Sensors/LRUs.................................................................................... 1-7
1.9 Garmin Software and Documents.................................................................................... 1-7
Section 2 Installation Preparation ..................................................................2-1
2.1 System Overview.............................................................................................................2-1
2.2 Electrical Considerations ............................................................................................... 2-12
2.3 Wiring/Cabling Considerations ..................................................................................... 2-14
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 (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 .......................................................................................................................... 7-4
7.6 Mounting Requirements .................................................................................................. 7-4
7.7 Outline and Installation Drawings ................................................................................... 7-5
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 .......................................................................................................................... 8-4
8.6 Mounting Requirements .................................................................................................. 8-4
8.7 Outline and Installation Drawings ................................................................................... 8-5
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 ............................................................................... 12-3
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 ............................................................................... 13-3
Section 14 GMU 11 (Magnetometer) Installation..........................................14-1
14.1 Equipment Description ................................................................................................ 14-1
14.2 General Specifications ................................................................................................. 14-1
14.3 Equipment Available ................................................................................................... 14-2
14.4 Unit Installation ........................................................................................................... 14-2
14.5 Outline and Installation Drawings ............................................................................... 14-5
Section 15 GMU 22 (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 ............................................................................... 15-6
Section 16 GPS 20A (WAAS GPS Position Source) Installation .................16-1
16.1 Equipment Description ................................................................................................ 16-1
16.2 Statement of Compliance (per AC 90-114A CHG1)................................................... 16-2
16.3 Equipment Available ................................................................................................... 16-2
16.4 General Specifications ................................................................................................. 16-3
16.5 Mounting Requirements .............................................................................................. 16-3
16.6 Unit Installation ........................................................................................................... 16-3
16.7 Antennas ...................................................................................................................... 16-3
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16.8 Antenna Cable Requirements ...................................................................................... 16-3
16.9 Outline and Installation Drawings ............................................................................... 16-4
Section 17 GSA 28 (Autopilot Servo) Installation .........................................17-1
17.1 Equipment Description ................................................................................................ 17-1
17.2 Equipment Available ................................................................................................... 17-2
17.3 General Specifications ................................................................................................ 17-2
17.4 Required Equipment .................................................................................................... 17-4
17.5 Unit Installation ........................................................................................................... 17-5
17.6 Unit Wiring ................................................................................................................ 17-17
17.7 Outline and Installation Drawings ............................................................................. 17-17
Section 18 GSU 25/25B (AHRS/Air Data Sensor Unit) Installation ............18-1
18.1 Equipment Description ................................................................................................ 18-1
18.2 General Specifications ................................................................................................. 18-3
18.3 Required Equipment .................................................................................................... 18-3
18.4 Unit Installation ........................................................................................................... 18-4
18.5 Outline and Installation Drawings ............................................................................... 18-8
Section 19 GSU 73 (Sensor Unit) Installation ................................................19-1
19.1 Equipment Description ................................................................................................ 19-1
19.2 General Specifications ................................................................................................ 19-2
19.3 Required Equipment .................................................................................................... 19-3
19.4 Unit Installation ........................................................................................................... 19-4
19.5 Outline and Installation Drawings ............................................................................... 19-7
Section 20 GTP 59 (Temperature Probe) Installation ..................................20-1
20.1 Equipment Description ................................................................................................ 20-1
20.2 General Specifications ................................................................................................. 20-2
20.3 Unit Installation ........................................................................................................... 20-2
20.4 GTP 59 Icing................................................................................................................ 20-4
20.5 Outline and Installation Drawings ............................................................................... 20-5
Section 21 GTR 20 (VHF Communications Radio) Installation ..................21-1
21.1 Equipment Description ................................................................................................ 21-1
21.2 Equipment Available ................................................................................................... 21-2
21.3 General Specifications ................................................................................................. 21-3
21.4 Installation Considerations .......................................................................................... 21-4
21.5 Antenna Considerations............................................................................................... 21-5
21.6 Mounting Considerations............................................................................................. 21-7
21.7 Mounting, Wiring, and Power Checks......................................................................... 21-8
21.8 Outline and Installation Drawings ............................................................................. 21-10
Section 22 GPS/XM Antenna Installation......................................................22-1
22.1 Non-Garmin Antennas................................................................................................. 22-1
22.2 Garmin Antennas ......................................................................................................... 22-2
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22.3 Antenna Mounting Considerations .............................................................................. 22-4
22.4 Teardrop Footprint Antenna Installation (GA 35, GA 55, and GA 56)....................... 22-9
22.5 ARINC 743 Footprint Antenna Installation (GA 36, GA 37, GA 55A, GA 57X) .... 22-16
22.6 Non-Structural Mount Installation............................................................................. 22-25
22.7 Outline and Installation Drawings ............................................................................. 22-31
Section 23 Engine/Airframe Sensor Installation ...........................................23-1
23.1 Engine/Airframe Sensor Options................................................................................. 23-1
23.2 Engine Sensor Applications......................................................................................... 23-6
23.3 Engine Sensor Installation ......................................................................................... 23-14
Section 24 Connector Installation Instructions .............................................24-1
24.1 Cable Connector Installation ....................................................................................... 24-1
24.2 Thermocouple Installation into a Backshell ................................................................ 24-2
24.3 Jackscrew Configuration Module Installation into a Jackscrew Backshell ................. 24-4
24.4 Jackscrew Backshell Installation Instructions ............................................................. 24-7
Section 25 LRU Pinouts ...................................................................................25-1
25.1 GAD 27 (Flaps/Lights/Trim Controller)...................................................................... 25-1
25.2 GAD 29 (ARINC 429 Adapter)................................................................................... 25-9
25.3 GDU 37X (Display Unit)........................................................................................... 25-13
25.4 GDU 4XX (Display Unit).......................................................................................... 25-18
25.5 GEA 24 (EIS Interface) ............................................................................................. 25-27
25.6 GI 260 (AOA Indicator) ............................................................................................ 25-42
25.7 GMC 305 (AFCS Mode Controller).......................................................................... 25-44
25.8 GMC 307 (AFCS Mode Controller).......................................................................... 25-46
25.9 GMU 11 (Magnetometer) .......................................................................................... 25-48
25.10 GMU 22 (Magnetometer) ........................................................................................ 25-49
25.11 GPS 20A (WAAS GPS Position Source) ................................................................ 25-50
25.12 GSA 28 (Autopilot Servo) ....................................................................................... 25-52
25.13 GSU 25/25B (AHRS/Air Data Sensor Unit) ........................................................... 25-55
25.14 GSU 73 (Sensor Unit).............................................................................................. 25-59
25.15 GTP 59 (Temperature Probe) .................................................................................. 25-71
25.16 GTR 20 (VHF Communications Radio).................................................................. 25-72
25.17 GTX 23 (Mode S Transponder)............................................................................... 25-77
Section 26 G3X w/GSU 25 and/or GAD 29 Interconnect Drawings ............26-1
26.1 Core Interconnect Drawings w/GSU 25 and/or GAD 29 ............................................ 26-1
26.2 External Interconnect Drawings w/GSU 25 .............................................................. 26-10
Section 27 G3X w/GSU 73 Interconnect Drawings .......................................27-1
27.1 Core Interconnect Drawings ........................................................................................ 27-1
27.2 External Interconnect Drawings w/GSU 73 ................................................................ 27-5
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Section 28 G3X w/GTR 20 Interconnect Drawings.......................................28-1
28.1 Notes for Section 28 Drawings.................................................................................... 28-2
28.2 Single GTR 20 Interconnect Drawings........................................................................ 28-3
28.3 Dual GTR 20 Interconnect Drawings .......................................................................... 28-7
28.4 J2001 Connector Layout.............................................................................................. 28-9
Section 29 Sensor Wiring Examples ...............................................................29-1
29.1 Notes for Section 29 Drawings.................................................................................... 29-1
29.2 Sensor Wiring Examples w/GEA 24 ........................................................................... 29-2
29.3 Sensor Wiring Examples w/GSU 73 ........................................................................... 29-7
Section 30 Lycoming/Continental Sensor Wiring Examples........................30-1
30.1 Notes for Section 30 Drawings.................................................................................... 30-1
30.2 GEA 24 - Lycoming/Continental Sensor Drawings .................................................... 30-2
30.3 GSU 73 - Lycoming/Continental Sensor Drawings .................................................... 30-5
Section 31 Rotax Sensor Wiring Examples ....................................................31-1
31.1 Notes for Section 31 Drawings.................................................................................... 31-1
31.2 GEA 24 - Rotax Sensor Drawings............................................................................... 31-2
31.3 GSU 73 - Rotax Sensor Drawings ............................................................................... 31-5
Section 32 Jabiru Sensor Wiring Examples...................................................32-1
32.1 Notes for Section 32 Drawings.................................................................................... 32-1
32.2 GEA 24 - Jabiru Sensor Drawings............................................................................... 32-2
32.3 GSU 73 - Jabiru Sensor Drawings............................................................................... 32-4
Section 33 GDU 37X Configuration and Post Installation Checkout..........33-1
33.1 Recommended Test Equipment ................................................................................... 33-1
33.2 Configuration Mode..................................................................................................... 33-2
33.3 Software Loading Procedure ....................................................................................... 33-2
33.4 Configuration Pages..................................................................................................... 33-5
33.5 Garmin Database Updates ....................................................................................... 33-140
33.6 SiriusXM® Activation Instructions (GDU 375 only) ............................................. 33-144
33.7 External Interface Configuration (Garmin units only) ............................................ 33-145
33.8 GDU Splash Screen ................................................................................................. 33-148
33.9 Checklist Editor ....................................................................................................... 33-148
Section 34 GDU 4XX Configuration and Post Installation Checkout .........34-1
34.1 Recommended Test Equipment ................................................................................... 34-2
34.2 Configuration Mode..................................................................................................... 34-2
34.3 Software Loading Procedure ....................................................................................... 34-3
34.4 Configuration Pages..................................................................................................... 34-5
34.5 Garmin Database Updates ....................................................................................... 34-174
34.6 SiriusXM® Activation Instructions (GDU 455/465 only) ...................................... 34-177
34.7 External Interface Configuration (Garmin units only) ............................................ 34-178
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34.8 Checklist Editor ....................................................................................................... 34-181
Section 35 Troubleshooting ............................................................................35-1
35.1 General Troubleshooting ............................................................................................. 35-1
35.2 CAN Network Troubleshooting................................................................................... 35-2
35.3 GDU 37X/4XX ............................................................................................................ 35-2
35.4 Air Data Troubleshooting ............................................................................................ 35-3
35.5 Engine Indication Troubleshooting ............................................................................. 35-4
35.6 ADAHRS Troubleshooting.......................................................................................... 35-5
35.7 Post Installation Calibration Procedures ..................................................................... 35-7
35.8 GSU 73 Data Logging ................................................................................................. 35-8
35.9 Sending Troubleshooting Data to Garmin ................................................................. 35-10
Section 36 Maintenance ...................................................................................36-1
36.1 Inspections/Continued Airworthiness/Maintenance .................................................... 36-1
36.2 Return to Service Information ..................................................................................... 36-4
Appendix A Airframe Specific Installation Guidance ...................................A-1
A.1 Introduction.................................................................................................................... A-1
A.2 Van’s Aircraft ................................................................................................................ A-2
A.3 Lancair Aircraft.............................................................................................................. A-5
Appendix B RS-232 Text Output Format .......................................................B-1
B.1 Electrical Interface ..........................................................................................................B-1
B.2 Message Output Selection...............................................................................................B-1
B.3 General Message Output Format ....................................................................................B-1
B.4 Attitude/Air Data Message Format .................................................................................B-2
B.5 Engine Data Message Format .........................................................................................B-3
B.6 GPS Data Message Format .............................................................................................B-5
Appendix C LRU Performance Specifications/Licensing/Compliance ........C-1
C.1 GAD 29 ...........................................................................................................................C-1
C.2 GAP 26............................................................................................................................C-1
C.3 GDU 37X ........................................................................................................................C-1
C.4 GDU 4XX .......................................................................................................................C-2
C.5 GEA 24............................................................................................................................C-2
C.6 GMC 305/307..................................................................................................................C-2
C.7 GMU 11 ..........................................................................................................................C-3
C.8 GMU 22 ..........................................................................................................................C-3
C.9 GSA 28............................................................................................................................C-3
C.10 GSU 25..........................................................................................................................C-4
C.11 GSU 73..........................................................................................................................C-5
C.12 GTP 59 ..........................................................................................................................C-6
C.13 GTR 20/200...................................................................................................................C-7
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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 25B 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 25B, Unit Only 010-01071-10 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 C.10.2
Table 1-2 Contents of G3X Standard LRU (K10-00016-04)
Item Part Number Quantity
GSU 25, Unit Only 010-01071-00 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
GMU 11 Magnetometer 011-04349-90, Install Kit (Table 14-3) N
GMU 22 Magnetometer 011-00871-10, Conn Kit (Table 15-3) N
GPS 20A 011-03914-00 (Table 16-3) N
GSA 28 Servo Actuator
011-02950-00, Conn Kit (Table 17-6)
011-02950-01, 90° Conn Kit (Table 17-7
)
N
GSU 25 ADAHRS K10-00181-00, Conn Kit (Table 18-2 ) Y
GSU 73 ADAHRS/EIS NA 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 22
for required materials
for antenna installation including mounting brackets, doubler plates, rivets, hardware, cables, connectors,
and sealant.
GTP 59 Temperature Probe 011-00978-00 (Table 20-2) Y
GTR 20 011-03241-00 (Table 21-3) 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
GMU 11 Magnetometer Yes Section 14
GNS 400/500 Series Units No NA
GNS 480 GPS/Comm Navigator No NA
GSA 28 Servo Actuator Yes Section 17
GSU 25** ADAHRS Yes Section 18
GSU 73** ADAHRS/EIS Yes Section 19
GTN 600/700 Series Units No NA
GTR 20 Yes Section 21
GTR 200 No NA
GTX Transponder No NA
SL30 Nav/Comm Transceiver No NA
SL40 Comm Transceiver No NA
*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. RG400 or RG142 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
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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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 Section 6.6.1
GDU 37X
Unit Installation, Section 7.6.1
GDU 45X Unit Installation, Section 8.6.1 GDU 46X Unit Installation, or
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 33.5.1
, Section 34.5.1, and Section 35.3.1 for detailed information.
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 19.4.4
)
/