Garmin GMU 44, GTP 59, GDU 375, GDU 37X, GSU 73 User Manual

...

G3X

Installation Manual

190-01115-01 August, 2009 Revision A

Garmin Ltd. or its subsidiaries

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. 151

Street

Olathe, KS 66062 USA

Telephone: 913-397-8200

Aviation Dealer Technical Support Line (Toll Free): (888) 606-5482

www.garmin.com

Garmin (Europe) Ltd

Liberty House

Bulls Copse Road

Hounsdown Business Park

Southampton, SO40 9RB, UK

Telephone: +44 (0) 8708501241

RECORD OF REVISIONS

Revision

Date

A 08/26/09 Initial Release

Description

Page A G3X Installation Manual Revision A 190-01115-01

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 web site at

www.garmin.com/prop65

NOTE

The Garmin G3X system includes products like the GDU 37X and the GSU 73 that are not TSO-certified products and have received no FAA approval or endorsement. Consequently the G3X system 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, and three-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.

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.

DOCUMENT PAGINATION

Section Page Range

Table of Contents i – xii

Section 1 1-1 – 1-8 Section 2 2-1 – 2-6 Section 3 3-1 – 3-6 Section 4 4-1 – 4-8 Section 5 5-1 – 5-4 Section 6 6-1 – 6-28 Section 7 7-1 – 7-14 Section 8 8-1 – 8-26 Section 9 9-1 – 9-12

Section 10 10-1 – 10-2 Appendix A A-1 – A-16 Appendix B B-1 – B-28 Appendix C C-1 – C-22 Appendix D D-1 – D4 Appendix E E-1 – E4

G3X Installation Manual Page i 190-01115-01 Revision A

TABLE OF CONTENTS

PARAGRAPH PAGE

1 G3X Installation Overview ..............................................................................................................1-1

1.1 Unpacking Unit................................................................................................................................1-1

1.2 Introduction......................................................................................................................................1-1

1.3 System Overview.............................................................................................................................1-2

1.4 General G3X LRU Specifications....................................................................................................1-3

1.5 Installation Requirements.................................................................................................................1-5

1.6 Mounting..........................................................................................................................................1-5

1.7 Wiring/Cabling Considerations........................................................................................................1-5

2 GDU 37X.........................................................................................................................................2-1

2.1 Equipment Description.....................................................................................................................2-1

2.2 Electrical Specifications...................................................................................................................2-2

2.3 Environmental Specifications ..........................................................................................................2-3

2.4 Installation Requirements.................................................................................................................2-4

2.5 Installation Considerations...............................................................................................................2-5

2.6 Mounting Requirements...................................................................................................................2-5

2.7 Unit Installation................................................................................................................................2-5

2.8 Maintenance.....................................................................................................................................2-5

2.9 Panel Cutout Template.....................................................................................................................2-6

3 GMU 44 ...........................................................................................................................................3-1

3.1 Equipment Description.....................................................................................................................3-1

3.2 Electrical Specifications...................................................................................................................3-1

3.3 Environmental Specifications ..........................................................................................................3-2

3.4 GMU 44 TSO/ETSO Compliance....................................................................................................3-2

3.5 Installation Requirements.................................................................................................................3-3

3.6 Installation Considerations...............................................................................................................3-3

3.7 GSU 73/GMU 44 Interconnect Harness Fabrication Instructions....................................................3-5

3.8 Mounting Instructions......................................................................................................................3-6

3.9 Maintenance.....................................................................................................................................3-6

4 GSU 73.............................................................................................................................................4-1

4.1 Equipment Description.....................................................................................................................4-1

4.2 Electrical Specifications...................................................................................................................4-2

4.3 Environmental Specifications ..........................................................................................................4-3

4.4 Installation Requirements.................................................................................................................4-3

4.5 Installation Considerations...............................................................................................................4-4

4.6 Mounting Requirements...................................................................................................................4-6

4.7 Unit Installation................................................................................................................................4-7

4.8 Maintenance.....................................................................................................................................4-8

Page ii G3X Installation Manual Revision A 190-01115-01

PARAGRAPH PAGE

5 GTP 59.............................................................................................................................................5-1

5.1 Equipment Description.....................................................................................................................5-1

5.2 Installation Requirements.................................................................................................................5-1

5.3 TSO/ETSO Compliance...................................................................................................................5-2

5.4 Installation Considerations...............................................................................................................5-3

5.5 Unit Installation................................................................................................................................5-4

5.6 Maintenance.....................................................................................................................................5-4

6 Garmin GPS/XM Antennas..............................................................................................................6-1

6.1 GPS Antennas ..................................................................................................................................6-1

6.2 XM Antennas...................................................................................................................................6-1

6.3 Antenna Mounting Considerations...................................................................................................6-2

6.4 Teardrop Footprint Antenna Installation (GA 55 and GA 56).........................................................6-7

6.5 ARINC 743 Footprint Antenna Installation (GA 55A, GA 57X)..................................................6-14

6.6 Non-Structural Mount Installation.................................................................................................6-23

7 Software, Configuration, Databases, and XM Activation................................................................7-1

7.1 Configuration Mode.........................................................................................................................7-1

7.2 Software/Audio Data Identification .................................................................................................7-1

7.3 Software Loading Procedure............................................................................................................7-3

7.4 Configuration Pages.........................................................................................................................7-4

7.5 Garmin Database Updates..............................................................................................................7-12

7.6 XM Activation Instructions (GDU 375 only)................................................................................7-14

8 Post-Installation Checkout and Calibration Procedures...................................................................8-1

8.1 Recommended Test Equipment .......................................................................................................8-2

8.2 GDU 37X Test Procedure................................................................................................................8-2

8.3 GSU 73/GMU 44 Post-Installation Calibration Procedure..............................................................8-4

9 Troubleshooting ...............................................................................................................................9-1

9.1 GDU 37X.........................................................................................................................................9-1

9.2 GMU 44 ...........................................................................................................................................9-2

9.3 GSU 73.............................................................................................................................................9-3

9.4 GSU 73 – Air Data Troubleshooting................................................................................................9-7

9.5 Troubleshooting On-board the Aircraft..........................................................................................9-10

9.6 GSU Page.......................................................................................................................................9-11

10 Return to Service Information........................................................................................................10-1

10.1 GDU 37X.......................................................................................................................................10-1

10.2 GSU 73...........................................................................................................................................10-1

10.3 GMU 44 .........................................................................................................................................10-2

G3X Installation Manual Page iii 190-01115-01 Revision A

PARAGRAPH PAGE

APPENDIX A: G3X Pinouts...................................................................................................................A-1

A.1 GDU 37X........................................................................................................................................A-1

A.2 GMU 44 ..........................................................................................................................................A-5

A.3 GSU 73............................................................................................................................................A-6

APPENDIX B: Connector Installation Instructions................................................................................. B-1

B.1 Thermocouple Installation into a Backshell....................................................................................B-1

B.2 Jackscrew Configuration Module Installation into a Jackscrew Backshell..................................... B-3

B.3 Jackscrew Backshell Installation Instructions.................................................................................B-6

B.4 Circular Connector Installation Instructions................................................................................. B-19

APPENDIX C: Outline and Installation Drawings..................................................................................C-1

APPENDIX D: Interconnect Drawing.....................................................................................................D-1

APPENDIX E: External Interface Drawing (Example Only).................................................................. E-1

Page iv G3X Installation Manual Revision A 190-01115-01

LIST OF ILLUSTRATIONS

FIGURE PAGE

1-1 G3X Interconnect Example..............................................................................................................1-2

1-2 Coaxial Cable Installation................................................................................................................1-7

2-1 GDU 37X Unit View .......................................................................................................................2-1

2-2 GDU 37X Mounting Accessories ....................................................................................................2-4

3-1 GMU 44 Unit View..........................................................................................................................3-1

4-1 GSU 73 Unit View...........................................................................................................................4-1

4-2 GSU 73 Air Hose Fitting Locations.................................................................................................4-5

4-3 GSU 73 Orientation Calibration.......................................................................................................4-6

5-1 GTP 59.............................................................................................................................................5-1

6-1 Recommended Antenna Placement..................................................................................................6-4

6-2 Carbon/Glass Buried Antenna Area.................................................................................................6-5

6-3 Glare Shield Buried Antenna Area...................................................................................................6-6

6-4 Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.032” to 0.049” ...........................6-9

6-5 Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.049” to 0.051” ...........................6-9

6-6 Doubler Design, Teardrop Footprint Antenna, Skin Thickness 0.051” to 0.063” .........................6-10

6-7 Sample Doubler Location, Teardrop Footprint Antenna, Metal Skin Aircraft ..............................6-10

6-8 Skin Cutout Detail, Teardrop Footprint Antenna, Skin Thickness 0.032” to 0.049”.....................6-11

6-9 Skin Cutout Detail, Teardrop Footprint Antenna, Skin Thickness 0.049” to 0.051”.....................6-11

6-10 Skin Cutout Detail, Teardrop Footprint Antenna, Skin Thickness 0.051” to 0.063”.....................6-12

6-11 Doubler Installation, Teardrop Footprint Antenna, Skin Thickness 0.032” to 0.049”...................6-12

6-12 Doubler Installation, Teardrop Footprint Antenna, Skin Thickness 0.049” to 0.051”...................6-13

6-13 Doubler Installation, Teardrop Footprint Antenna, Skin Thickness 0.051” to 0.063”...................6-13

6-14 Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.032” to 0.049”.....................6-16

6-15 Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.049” to 0.051”.....................6-17

6-16 Doubler Design, ARINC 743 Footprint Antenna, Skin Thickness 0.051” to 0.063”.....................6-18

6-17 Sample Doubler Location, ARINC 743 Antenna, Metal Skin Aircraft .........................................6-19

6-18 Skin Cutout Detail, GA 55A Antenna, Skin Thickness 0.032” to 0.049”......................................6-19

6-19 Skin Cutout Detail, GA 55A Antenna, Skin Thickness 0.049” to 0.051”......................................6-20

6-20 Skin Cutout Detail, GA 55A Antenna, Skin Thickness 0.051” to 0.063”......................................6-20

6-21 Doubler Installation, ARINC 743Footprint Antenna, Skin Thickness 0.032” to 0.049”...............6-21

6-22 Doubler Installation, ARINC 743Footprint Antenna, Skin Thickness 0.049” to 0.051”...............6-21

6-23 Doubler Installation, ARINC 743Footprint Antenna, Skin Thickness 0.051” to 0.063”...............6-22

6-24 Installation of ARINC 743 Footprint Antenna...............................................................................6-22

6-25 Generic Non-structural ARINC 743 Footprint Antenna Installation.............................................6-23

G3X Installation Manual Page v 190-01115-01 Revision A

FIGURE PAGE

6-26 Example Bracket Antenna Mounting Under Glareshield...............................................................6-24

6-27 Example Non-structural Antenna Mounting Under Glareshield....................................................6-25

6-28 Example Teardrop Antenna Installation in Airframe Under Fabric Skin......................................6-26

6-29 Example ARINC 743 Footprint in Airframe Under Fabric Skin...................................................6-26

6-30 Example Non-structural Antenna Mounting on Airframe .............................................................6-27

6-31 Example Teardrop Footprint Antenna Mounting Under Fabric Skin ............................................6-28

8-1 Softkey Positions..............................................................................................................................8-1

8-2 Aircraft Alignment.........................................................................................................................8-10

9-1 Heading Failure Indication (Full-Screen PFD)................................................................................9-2

9-2 Attitude, Air Data, and Engine/Airframe Failure Indication............................................................9-5

9-3 Attitude Failure Indication (PFD)....................................................................................................9-5

9-4 AHRS Align Message (PFD)...........................................................................................................9-6

9-5 No Info for TAS & OAT..................................................................................................................9-7

9-6 Airspeed and Altitude Failure Indications .......................................................................................9-7

9-7 Attitude, Heading, Air Data, and Engine/Airframe Failure.............................................................9-9

9-8 CONFIG GSU Page.......................................................................................................................9-11

A-1 View of J3701 Connector from Back of Unit.................................................................................A-1

A-2 View of J441 Connector Looking at Rear of Unit ..........................................................................A-5

A-3 Rear View of Connector End Plate.................................................................................................A-6

A-4 Rear Connector of J731 Viewed from Connector End of Unit.......................................................A-6

A-5 Rear Connector of J732 Viewed from Connector End of Unit.......................................................A-8

B-1 Insulation/Contact Clearance......................................................................................................... B-1

B-2 Jackscrew Backshell Thermocouple Installation........................................................................... B-2

B-3 Insulation/Contact Clearance......................................................................................................... B-4

B-4 Jackscrew Backshell Installation...................................................................................................B-5

B-5 Shield Install onto a Jackscrew Backshell (78 pin example)......................................................... B-7

B-6 Method A.1 for Shield Termination.............................................................................................. B-8

B-7 Insulation/Contact Clearance....................................................................................................... B-10

B-8 Method A.2 (Daisy Chain) for Shield Termination..................................................................... B-12

B-9 Method B.1 (Quick Term) for Shield Termination ..................................................................... B-13

B-10 Method B.2 (Daisy Chain-Quick Term) for Shield Termination ................................................B-14

B-11 Daisy Chain between Methods A and B......................................................................................B-15

B-12 Method C.1 Double-Shield Termination..................................................................................... B-16

B-13 Method C.2 Double-Shield Termination..................................................................................... B-17

B-14 D-Sub Spliced Signal Wire illustration.......................................................................................B-18

B-15 Circular Connector Install (19 contact example)......................................................................... B-20

B-16 Standard Shield Termination.......................................................................................................B-20

Page vi G3X Installation Manual Revision A 190-01115-01

FIGURE PAGE

B-17 Insulation/Contact Clearance....................................................................................................... B-23

B-18 Daisy Chain Shield Termination................................................................................................. B-24

B-19 Quick Term Shield Termination..................................................................................................B-25

B-20 Daisy Chain, Quick-Term Shield Termination............................................................................B-27

B-21 Daisy Chain Shield Termination between Methods A and B...................................................... B-28

C-1.1 GDU 37X Outline Drawing........................................................................................................... C-1

C-1.2 GDU 37X Panel Cutout Drawing ................................................................................................. C-3

C-2.1 GMU 44 Mounting Rack............................................................................................................... C-5

C-2.2 GMU 44 Top Mounted Installation............................................................................................... C-7

C-2.3 GMU 44 Bottom Mounted Installation ......................................................................................... C-9

C-2.4 GMU 44 Wiring Detail................................................................................................................ C-11

C-3.1 GSU 73 Outline Drawing............................................................................................................ C-13

C-4.1 GTP 59 O.A.T. Probe Installation Drawing................................................................................ C-15

C-5.1 GA 55/55A Installation Drawing ................................................................................................ C-17

C-5.2 GA 56 Installation Drawing ........................................................................................................ C-19

C-5.3 GA 57X Installation Drawing......................................................................................................C-21

D-1.1 Notes, 14V Power, and Antenna ...................................................................................................D-1

D-1.2 GDU 37X and GSU 73..................................................................................................................D-3

E-1.1 Notes, GDU 37X RS-232 and Audio Examples ............................................................................ E-1

E-1.2 GSU 73 RS-232 and ARINC 429 Examples................................................................................. E-3

E-1.3 TruTrak and Trio Auto Pilot Examples......................................................................................... E-5

G3X Installation Manual Page vii 190-01115-01 Revision A

LIST OF TABLES

TABLE PAGE

1-1 G3X LRU Part Numbers..................................................................................................................1-3

1-2 Contents of GDU 37X Assembly (010-00667-XX).........................................................................1-3

1-3 G3X LRU Power Requirements.......................................................................................................1-3

1-4 G3X LRU Physical Specifications...................................................................................................1-4

1-5 Contents of G3X Installation Kit (K10-00017-00)..........................................................................1-5

1-6 Contents of G3X LRU Kit (K10-00016-00)....................................................................................1-5

1-7 Pin Contact and Crimp Tools Part Numbers....................................................................................1-6

2-1 GDU 37X Supply Voltages..............................................................................................................2-2

2-2 GDU 37X Power Requirements.......................................................................................................2-2

2-3 GDU 37X GPS Specifications .........................................................................................................2-2

2-4 GDU 37X Supported Antennas........................................................................................................2-3

2-5 Contents of GDU 37X Connector Kit (011-01921-00) ....................................................................2-4

3-1 GMU 44 Electrical Specifications....................................................................................................3-1

3-2 GMU 44 Environmental Specifications...........................................................................................3-2

3-3 TSO/ETSO Compliance...................................................................................................................3-2

3-4 TSO/ETSO Deviations.....................................................................................................................3-2

3-5 GMU 44 Part Numbers ....................................................................................................................3-3

3-6 GMU 44 Accessories .......................................................................................................................3-3

3-7 Required Distance from Magnetic Disturbances..............................................................................3-4

3-8 Parts Needed for GMU 44 Installation.............................................................................................3-5

3-9 GMU 44 Connector Kit (011-00871-00) Contents, Reference Figure C-2.4...................................3-5

4-1 GSU 73 Supply Specifications.........................................................................................................4-2

4-2 GSU 73 Environmental Specifications ............................................................................................4-3

4-3 GSU 73 Available Equipment..........................................................................................................4-3

4-4 Contents of P731 Connector Kit (011-01818-00)............................................................................4-3

4-5 Contents of P732 Connector Kit (011-01818-01)............................................................................4-4

5-1 GTP 59 Part Number........................................................................................................................5-1

5-2 GTP 59 Outside Air Temperature Kit..............................................................................................5-1

5-3 Applicable TSO/ETSOs for the GTP 59..........................................................................................5-2

5-4 TSO/ETSO Deviations for the GTP 59 ............................................................................................5-2

5-5 Parts Needed for GTP 59 Installation ..............................................................................................5-3

6-1 GPS Antennas ..................................................................................................................................6-1

6-2 GPS Antenna Minimum Requirements............................................................................................6-1

6-3 XM Antennas...................................................................................................................................6-1

Page viii G3X Installation Manual Revision A 190-01115-01

TABLE PAGE

6-4 XM Satellite Radio Antenna Minimum Requirements....................................................................6-2

6-5 Teardrop Footprint Antenna Doubler Design and Installation.........................................................6-7

6-6 ARINC 743 Footprint Antenna Doubler Design and Installation..................................................6-14

6-7 Minimum Distance Required Between Tube Structure and Antenna............................................6-28

8-1 Post-Installation Calibration Procedure Summary...........................................................................8-4

8-2 Data Validity Requirements for AHRS Calibration Procedures......................................................8-5

8-3 Configuration Mode GSU Page Status Boxes..................................................................................8-5

8-4 Magnetometer Interference Test Sequence Example.....................................................................8-23

9-1 GSU 73 AHRS Operating Mode Table............................................................................................9-3

9-2 GSU 73 AHRS Pitch/Bank Limitations for Cold Start While Airborne..........................................9-3

B-1 Thermocouple Kit GPN 011-00981-00...........................................................................................B-1

B-2 GPN: 011-00979-20 – Kit (w/EEPROM and pins)......................................................................... B-3

B-3 GPN: 011-00979-22 – Kit (w/EEPROM and sockets).................................................................... B-3

B-4 Parts supplied for a Shield Block Installation (Figure B-1) ............................................................B-6

B-5 Parts NOT su pplied for a Shield Block Installation (Figure B-1)................................................... B-6

B-6 Shielded Cable Preparations for Garmin Connectors...................................................................... B-8

B-7 Shielded Cable Preparations – (Quick Term) ...............................................................................B-14

B-8 Shielded Cable Preparations for Garmin Connectors.................................................................... B-16

B-9 Parts supplied for a Circular Connector Installation (Figure B-15) .............................................. B-19

B-10 Parts NOT supplied for a Circular Connector Installation (Figure B-15).....................................B-19

B-11 Shielded Cable Preparations for Garmin Connectors....................................................................B-21

B-12 Shielded Cable Preparations – (Quick Term) ...............................................................................B-25

G3X Installation Manual Page ix 190-01115-01 Revision A

Limited Warranty for Garmin GMU 44 and GTP 59 Products

The Garmin products GMU 44 and GTP 59 are warranted to be free from defects in materials or workmanship for two years from the date of purchase. Within this 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 warranty does not cover failures due to abuse, misuse, accident or unauthorized alteration or repairs.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR 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 THIS 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 the unit 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.

To obtain warranty service, contact your local Garmin Authorized Service Center. For assistance in locating a Service Center near you, call Garmin Customer Service at one of the numbers shown below.

Products sold through online auctions are not eligible for rebates or other special offers from Garmin. Online auction confirmations 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.

Garmin International, Inc. Garmin (Europe) Ltd. 1200 East 151

Street Liberty House, Bulls Copse Road Olathe, Kansas 66062, U.S.A. Hounsdown Business Park Phone: 913/397.8200 Romsey, SO40 9RB, U.K.

FAX: 913/397.0836 Phone: +44/ (0) 870.8501241 Phone: +44/ (0) 870.8501251

Page x G3X Installation Manual Revision A 190-01115-01

Limited Warranty for GSU 73 and GDU 37X Products

The Garmin products GSU 73 and GDU 37X are warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this 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 warranty does not cover failures due to abuse, misuse, accident or unauthorized alteration or repairs.

To obtain warranty service, contact your local Garmin Authorized Service Center. For assistance in locating a Service Center near you, call Garmin Customer Service at one of the numbers shown below.

Garmin International, Inc. Garmin (Europe) Ltd. 1200 East 151

Street Liberty House, Bulls Copse Road Olathe, Kansas 66062, U.S.A. Hounsdown Business Park Phone: 913/397.8200 Romsey, SO40 9RB, U.K.

FAX: 913/397.0836 Phone: +44/ (0) 870.8501241 Phone: +44/ (0) 870.8501251

G3X Installation Manual Page xi 190-01115-01 Revision A

GSU 73 HARDWARE MOD LEVEL HISTORY

The following table identifies hardware modification (Mod) Levels for the GSU 73 LRU. Mod Levels are listed with the associated service bulletin number, service bulletin date, and the purpose of the modification. The table is current at the time of publication of this manual (see date on front cover) and is subject to change without notice.

MOD

LEVEL

SERVICE

BULLETIN

NUMBER

SERVICE

BULLETIN

DATE

PURPOSE OF MODIFICATION

1 N/A N/A Improved HSCM accuracy when using +28V supply

Page xii G3X Installation Manual Revision A 190-01115-01

1 G3X Installation Overview

1.1 Unpacking Unit

Carefully unpack the equipment and make a visual inspection of the unit for evidence of damage incurred during shipment. If any component of the G3X system 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 the unit 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 Introduction

This manual provides all of the mechanical and electrical information required for the installation of the G3X system.

NOTE

The following outline describes the organization of this manual:

Section 1

This section contains a basic overview of the G3X system and interface. A Block

diagram is given to aid in the understanding of the system. This section also contains generic information that pertains to all components of the G3X system, such as mounting, wiring, and antenna location.

Section 2

This section describes the mechanical, electrical, and installation aspects of the

GDU 37X.

Section 3

This section describes the mechanical, electrical, and installation aspects of the

GMU 44.

Section 4

This section describes the mechanical, electrical, and installation aspects of the

GSU 73.

Section 5

This section describes the mechanical, electrical, and installation aspects of the

GTP 59.

Section 6

This section describes the mechanical, electrical, and installation aspects for the GPS

and XM antennas.

Section 7 Section 8

This section describes the non-G3X LRU interfaces. This section contains software, configuration, database, and XM activation

information.

Section 9

This section contains post-installation checkout and calibration procedures for the

G3X.

Section 10 Section 11

This section contains G3X troubleshooting information. This section contains information for ensuring the unit is suitable to be returned to

service.

Appendix A Appendix B Appendix C Appendix D Appendix E

G3X Installation Manual – Installation Overview Page 1-1 190-01115-01 Revision A

This section contains pinout information for all G3X LRU’s. This section contains connector installation instructions. This section contains G3X Outline and Installation Drawings.

This section contains the G3X Interconnect Drawings.

This section contains the G3X External Interface Drawings.

1.3 System Overview

The G3X is an advanced technology avionics suite designed to integrate pilot/aircraft interaction into one central system. The system combines primary flight instrumentation, aircraft systems instrumentation, and navigational information, all displayed on one, two, or three color screens. The G3X system is composed of several sub-units or Line Replaceable Units (LRUs). LRUs have a modular design and can be installed directly behind the instrument panel or in a separate avionics bay if desired. This design greatly eases troubleshooting and maintenance of the G3X system. A failure or problem can be isolated to a particular LRU, which can be replaced quickly and easily. Each LRU has a particular function, or set of functions, that contributes to the system’s operation. For additional information on LRU functions, see the applicable section of this manual.

1.3.1 System Architecture

Figure 1-1 illustrates an example block diagram of a G3X installation. The flexibility of system allows the installer to determine the architecture that best fits each installation.

Config Module

Autopilot

GMU 44

GTP 59

Config Module

RS-232

A429

RS-485 RS-232

GNS

430(W)

SL 30/40

(1, 2)

RS-232

ELT

RS-232

GDU 37X (PFD1)

Pitot

CAN

Static

GSU 73

A429 (GPS)

A429 (NAV)

A429 (AIR DATA)

(1)

RS-232

A429 (GPS)

A429 (NAV)

GNS

430(W)

RS-232

GMA 240

STEREO/MONO AUDIO

GDU 37X (MFD)

RS-232

GTX 330

(1)

Figure 1-1. G3X Interconnect Example

GDU 37X (PFD2)

RS-232

Notes: (1) Maximum of 2 COM/NAV units installed. (2) GDU 37X to SL40 is TX only.

Page 1-2 G3X Installation Manual –Installation Overview Revision A 190-01115-01

1.4 General G3X LRU Specifications

1.4.1 Garmin LRU Part Numbers

Table 1-1. G3X LRU Part Numbers

LRU Unit Only Part Number Assembly Part Number

GDU 370 Americas DB 011-01747-15 010-00667-15 GDU 370 Atlantic DB 011-01747-20 010-00667-20 GDU 370 Pacific DB 011-01747-35 010-00667-35 GDU 375 Americas DB 011-01747-30 010-00667-25 GMU 44 011-00870-10 010-00296-10* GSU 73 011-01817-00 010-00691-00* GTP 59 011-00978-00* NA

*Included in G3X LRU Kit (K10-00016-00)

Table 1-2. Contents of GDU 37X Assembly (010-00667-XX)

Item Garmin P/N Quantity

GDU 37X 011-01747-XX 1 GDU 37X Connector Kit 011-01921-00 1 GDU 37X Nutplate SD Card, Dummy 145-00561-00 1 Important Safety and Product Information 190-00720-50 1 GDU 37X Quick Reference Guide 190-01055-00 1 Jeppesen Free Single Update 190-10003-03 1

115-01054-00 1

1.4.2 Power Specifications

All LRUs are capable of operating at either 14 or 28 VDC. Table 1-3 lists current draw specifications.

Table 1-3. G3X LRU Power Requirements

LRU Supply Voltage Current Draw

GDU 37X 10-29 Vdc

GMU 44 12Vdc (from GSU 73) Inc. in GSU Current Draw

GSU 73 10-29 Vdc

1.10 Amp @ 14Vdc

0.55 Amp @ 28Vdc

1.75 Amp @ 14Vdc (Max)

0.80 Amp @ 28Vdc (Max)

G3X Installation Manual – Installation Overview Page 1-3 190-01115-01 Revision A

1.4.3 Physical Specifications

All width, height, and depth measurements are taken with unit rack (if applicable) and connectors.

Table 1-4. G3X LRU Physical Specifications

LRU Width Height

GDU 370

GDU 375

GMU 44

GSU 73

6.04 inches (153.4 mm)

N/A

5.50 inches (139.8 mm)

7.83 inches (198.8 mm)

2.10 inches (5.33 cm)

3.96 inches

(100.6 mm)

Depth

(GMU 44 Diameter, including

flange*)

3.41 inches (86.7 mm)

*3.35 inches

(85.1 mm)

7.33 inches

(186.2 mm)

Unit Weight

1.6 lbs

(0.713 kg)

1.7 lbs

(0.753 kg)

0.35 lbs.

(0.16 kg)

3.1 lbs

(1.41 kg)

Unit Weight

w/Nutplate

& Connector

Weight

1.8 lbs

(0.803 kg)

1.9 lbs

(0.843 kg)

0.50 lbs.

(0.23 kg)

3.5 lbs

(1.59 kg)

1.4.4 Cooling Requirements

While no forced cooling air is required for the G3X system, it is highly recommended that the air behind the panel be kept moving (by ventilation or a fan).

• No cooling air is required for the GDU 37X

• No cooling air is required for the GMU 44

• No cooling air is required for the GSU 73, however the GSU 73 should be mounted in a location

that provides adequate airflow to comply with the maximum outer case temperature listed in Section 4.

NOTE

Avoid installing the G3X LRUs near heat sources. If this is not possible, ensure that additional cooling is provided. Allow adequate space for installation of cables and connectors. The installer will supply and fabricate all of the cables. All wiring should be in accordance with FAA AC 43.13-1B and AC 43.13-2A.

Page 1-4 G3X Installation Manual –Installation Overview Revision A 190-01115-01

1.5 Installation Requirements

One GDU 37X assembly (listed in Table 1-1) is required, dependent upon customer’s desired database region. Each GDU 37X (010-00667-XX) comes with all equipment needed for installation.

1.5.1 Required Accessories

The following kits are required for the installation of the G3X.

Table 1-5. Contents of G3X Installation Kit (K10-00017-00)

Item Garmin P/N Quantity

GMU 44, Connector Kit 011-00871-00 1

Config Module w/EEPROM, Jackscrew 011-00979-20 1

Config Module w/Sockets, Jackscrew 011-00979-22 1

Thermocouple Kit 011-00981-00 1

GSU 73, Connector Kit, P9731 011-01818-00 1

GSU 73, Connector Kit, P9732 011-01818-01 1

G3X, Supplemental Parts 011-02347-00 1

GMU 44, Install Rack, Modified 115-00481-10 1

Table 1-6. Contents of G3X LRU Kit (K10-00016-00)

Item Garmin P/N Quantity

GMU 44, Unit Only 010-00296-10 1

GSU 73, Unit Only 010-00691-00 1

GTP 59, Unit Only 011-00978-00 1

1.6 Mounting

Refer to Section 2 through Section 6 for specific mounting instructions for each component of the G3X, and to Appendix A for Outline & Installation Drawings.

1.7 Wiring/Cabling Considerations

Use MIL-W-22759/16 (or other approved wire) AWG #24 or larger wire for all connections unless otherwise specified. The supplied standard pin contacts are compatible with up to AWG #22 wire. In cases where some installations have more than one LRU sharing a common circuit breaker, sizing and wire gauge is based on aircraft circuit breaker layout, length of wiring, current draw on units, and internal unit protection characteristics. Do not attempt to combine more than one unit on the same circuit breaker.

RG400 or RG142 coaxial cable with 50 Ω nominal impedance and meeting applicable aviation regulations should be used for the installation.

G3X Installation Manual – Installation Overview Page 1-5 190-01115-01 Revision A

1.7.1 Wiring Harness Installation

Allow adequate space for installation of cables and connectors. Ensure that routing of the wiring does not come in contact with sources of heat, RF or EMI interference. Analog Input wires routed too close to spark plugs, plug wires, or magnetos may result in erratic readings.

The installer shall supply and fabricate all of the cables. Required connectors, etc. are provided with the G3X Installation Kit (K10-00017-00). Electrical connections are made through D subminiature connectors for the GDU 37X and GSU 73 units, and through a round 9-pin connector for the GMU 44. Appendix A defines the electrical characteristics of all input and output signals. Required connectors and associated hardware are supplied with the connector kit..

CAUTION

Check wiring connections for errors before connecting any wiring harnesses. Incorrect wiring could cause internal component damage.

Table 1-7. Pin Contact and Crimp Tools Part Numbers

LRU Contact Type

GDU 37X

GSU 73 GTP 59

011-00979-20

(Config module

w/EEPROM

kit)

011-00981-00

(thermocouple

kit)

GMU 44

011-00979-22

(Config module

w/Sockets &

Jackscrew kit)

Socket, Mil

Crimp, Size 20

Pin, Mil Crimp,

Size 22D

Socket, Mil

Crimp, Size 20

Socket, Mil

Crimp, Size 20,

26-30 AWG

1. Insertion/Extraction tools from ITT Cannon are all plastic; others are plastic with metal tip.

2. Non-Garmin part numbers shown are not maintained by Garmin and consequently are subject

to change without notice.

Garmin

Contact Part

Number

336-00094-00

336-00021-00

336-00022-00

336-00022-01

Recommended

Positioner

M22520/2-08,

Daniels K13-1

Positronic P/N

9502-4, ITT P/N

M22520/2-09,

Daniels P/N K42

M22520/2-08,

Daniels K13-1

Positronic P/N

9502-5

NOTES

Recommended

Insertion/

Extraction Tool

M81969/1-04

for size 22D

pins and

M81969/1-02

for size 20 pins

Recommended Hand Crimping

Tool

M22520/2-01

Page 1-6 G3X Installation Manual –Installation Overview Revision A 190-01115-01

1.7.2 Cable Location Considerations

Use cable meeting the applicable aviation regulation for the interconnect wiring. Any cable meeting specifications is acceptable for the installation. When routing cables, observe the following precautions:

• All cable routing should be kept as short and as direct as possible.

• Check that there is ample space for the cabling and mating connectors.

• Avoid sharp bends in cabling.

• Avoid routing near aircraft control cables.

• Avoid routing cables near power sources (e.g., 400 Hz generators, trim motors, etc.) or near

power for fluorescent lighting.

• Route the GPS antenna cable as far as possible away from all COM transceivers and antenna cables.

1.7.3 Cable Installation

1. Route the coaxial cable to the unit location. Secure the cable in accordance with good aviation

practices.

2. Trim the coaxial cable to the desired length and install the BNC connector (330-00087-00) per

the cabling instructions on Figure 1-2. If the connector is provided by the installer, follow the connector manufacturer’s instructions for cable preparation.

Figure 1-2. Coaxial Cable Installation

3. Contacts for the 50, 62, and 78 pin connectors must be crimped onto the individual wires of

the aircraft wiring harness. Table 1-7 lists contact part numbers (for reference) and recommended crimp tools.

G3X Installation Manual – Installation Overview Page 1-7 190-01115-01 Revision A

1.7.4 Backshell Assemblies

Connector kits include backshell assemblies. The backshell assembly houses the configuration module and a thermocouple reference junction (if applicable, see Appendix D). Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds at the backshell housing. The instructions needed to install the Jackscrew Backshell, Configuration Module, and Thermocouple are located in Appendix B.

NOTE

The GDU 37X rear connector (J3701) is electrically isolated. For installations using shielded cables, a ground pin must be tied to the connector shell.

Page 1-8 G3X Installation Manual –Installation Overview Revision A 190-01115-01

2 GDU 37X

Figure 2-1. GDU 37X Unit View

2.1 Equipment Description

NOTE

There is no TSO/ETSO applicable to the GDU G37X.

The GDU 37X provides a central display and user interface for the G3X system. The display is mounted flush to the aircraft instrument panel using four #6 screws. The GDU 37X is available in two models, GDU 370 and GDU 375. The GDU 370 is a Garmin Display Unit with a VFR WAAS-GPS receiver. The GDU 375 provides these same features plus an XM receiver.

2.1.1 Navigation Functions

• Display of position and ground speed

• Display of stored navigation and map databases

• Area navigation functions using the determined position/velocity and stored navigation data

• Advisory approach navigation functions and associated databases

G3X Installation Manual – GDU 37X Page 2-1 190-01115-01 Revision A

2.1.2 Interface Summary

The GDU 37X uses CAN and RS-232 communications interfaces. The GDU 37X communicates with the following Garmin LRUs:

• Other GDU 37X

• GSU 73

• SL30 Nav/Comm Transceiver

• SL40 Comm Transceiver

• GNS 400/500 Series Units

• GTX 327/330 Transponder

2.2 Electrical Specifications

2.2.1 Electrical Characteristics

Table 2-1. GDU 37X Supply Voltages

Characteristics Specifications

Power Requirements 14/28 VDC

2.2.2 Power Consumption

Table 2-2. GDU 37X Power Requirements

LRU 14V (Maximum) 14V (Typical) 28V (Maximum) 28V (Typical) GDU 370 GDU 375

15W, 1.10 Amp 8.5W, .600 Amp 15W, 0.540 Amp 8.5W, .300 Amp 15W, 1.10 Amp 9.5W, .675 Amp 15W, 0.540 Amp 9.25W, .330 Amp

2.2.3 GPS Specifications

The GDU 37X uses a high-sensitivity GPS receiver that continuously tracks and uses up to 12 satellites to compute and update its position.

Table 2-3. GDU 37X GPS Specifications

Characteristics Specifications

Acquisition Time a) Warm Start (position known to 10 nm, time known to 10

minutes, with valid almanac and ephemeris): Less than 5 seconds

b) Cold Start (position known to 300 nm, time known to 10

minutes, with valid almanac): Less than 45 seconds

c) AutoLocate™ (with almanac, without initial position or

time): Less than 60 seconds Update Rate 5/second, continuous Positional Accuracy <10 meters Antenna Power Supply Voltage (4.5 to 5.0), current (50 mA max)

Page 2-2 G3X Installation Manual – GDU 37X Revision A 190-01115-01

2.2.4 Antennas

Table 2-4 lists Garmin and non-Garmin antennas currently supported by the GDU 37X. Refer to Section 6 for Garmin antenna installation information. For non-Garmin antennas, follow the manufacturer’s installation instructions.

NOTE

Only a single GPS antenna is required for installations using more than one GDU 37X unit, as the GDU 37X will “share” the GPS information with all GDU 37X units.

Table 2-4. GDU 37X Supported Antennas

Model Mount Style

Comant 2480-201 VHF/GPS [1]

Comant 420-10 XM only Antenna

Screw Mount, Teardrop Footprint

Screw Mount, ARINC 743 Footprint

Conn

Type

BNC TNC

Antenna

Type

VHF COM, GPS

Mfr

Comant CI 2480-201 N/A

Antenna Part

Number

TNC XM Comant CI 420-10 N/A

Garmin Order

Number

Suction Cup,

GA 26C

Magnetic or

BNC GPS Garmin 011-00149-04 010-10052-04

Flange Mt

GA 26XM

Ground Plane Mt

TNC XM Garmin 013-00268-10 010-11373-00

GA 55 Stud Mount TNC XM Garmin 011-01033-00 010-10600-01

GA 55A ARINC 743 TNC XM Garmin 011-01153-00 010-10598-00

GA 56 Stud Mount BNC GPS Garmin 011-00134-00 010-10040-01

Screw GA 57X [2]

Mount,

ARINC 743

BNC TNC

GPS XM

Garmin 011-01032-10 010-11370-10

Footprint

[1] The GPS antenna connec tor is TNC type. The VHF COM antenna connector is BNC type.

NOTE

The GPS antenna should provide a gain of 16 to 25dB, and requires a

4.5V to 5V supply voltage that can provide 50mA max.

2.3 Environmental Specifications

The GDU 37X has an Operating Temperature Range of -20°C to +60°C.

G3X Installation Manual – GDU 37X Page 2-3 190-01115-01 Revision A

2.4 Installation Requirements

2.4.1 Accessories

The GDU 37X Connector Kit is provided with the GDU 37X unit and is required to install the unit (Figure 2-2). The GDU 37X Nutplate (115-01054-00) is also supplied with the unit to reinforce the panel cutout in thin panel installations.

The contents of the GDU 37X Connector Kit are listed in Table 2-5. One kit is required for each GDU 37X installed.

Table 2-5. Contents of GDU 37X Connector Kit (011-01921-00)**

Item Garmin P/N Quantity

Sub-Assy,bkshl w/Hdw,Jackscrew 011-01855-04 1

Conn, Rcpt,D-Sub, Crimp Socket, C 330-00625-50 1

Contact, Sckt, D-Sub, Crimp, Size 20 336-00094-00 20

2.4.2 Additional Equipment

A 3/32” hex drive tool is required to secure the GDU 37X to the panel as described in Section 2.7 Unit Installation.

CONNECTOR KIT

011-01921-00

GDU 37x UNIT 011-01747-( )

Figure 2-2. GDU 37X Mounting Accessories

Page 2-4 G3X Installation Manual – GDU 37X Revision A 190-01115-01

2.5 Installation Considerations

Fabrication of a wiring harness is required. Sound mechanical and electrical methods and practices are recommended for installation of the GDU 37X. Refer to Section 1.6 for wiring considerations and to Appendix A for pinouts.

Connector kits include backshell assemblies. Garmin’s backshell connectors give the installer the ability to quickly and easily terminate shield grounds and install a configuration module (PFD1 only) at the backshell housing. The instructions needed to assemble the backshell connector w/Shield Block grounding system and configuration modules are located in Appendix B.

NOTE

The GDU 37X rear connector (J3701) is electrically isolated. For installations using shielded cables, a ground pin must be tied to the connector shell.

2.6 Mounting Requirements

Refer to Appendix C for outline and installation drawings.

2.7 Unit Installation

The GDU 37X is installed by holding the unit flush with the instrument panel and fastening the four captured 3/32” hex socket head screws to the panel as shown in Figures C-1.1 and C-1.2.

2.8 Maintenance

Maintenance of the GDU 37X is “on condition” only. Periodic maintenance of the GDU 37X is not required. Instructions for Continued Airworthiness (ICA) are not required for this product under 14 CFR Part 21 since the GDU 37X has received no FAA approval or endorsement.

G3X Installation Manual – GDU 37X Page 2-5 190-01115-01 Revision A

2.9 Panel Cutout Template

The below drawing can be used as a template when marking the panel for cutout. Dimensions below are to verify accuracy of printout only, see Figure C-1.2 for complete dimensions.

GDU 37X PANEL CUTOUT TEMPLATE

IMPORTANT!

Ensure the Page Scaling setting is set to NONE when printing this page. Verify dimensions of printed template are accurate before cutting panel.

7.33 in

[186.2 mm]

Cut out panel

to inside line

5.57 in

[141.4 mm]

For corner holes, center punch and drill

(#36) / tap (6/32) to create threaded holes

drill out with 25 drill bit and use Garmin

nut-plate P/N 115-01054-00

Page 2-6 G3X Installation Manual – GDU 37X Revision A 190-01115-01

3. GMU 44

Figure 3-1. GMU 44 Unit View

3.1 Equipment Description

The Garmin GMU 44 Magnetometer is a remote mounted device that interfaces with a Garmin GSU 73 to provide flight attitude and heading data for flight instrumentation.

An Attitude and Heading Reference System combines the functions of a Vertical Gyro and a Directional Gyro to provide measurement of Roll, Pitch and Heading angles. The Garmin ADAHRS and magnetometer replace traditional rotating mass instruments.

Using long-life solid-state sensing technology, the GMU 44 Magnetometer uses magnetic field measurements to create an electronically stabilized AHRS.

The GMU 44 magnetometer provides magnetic information to support the function of the GSU 73. The GSU 73 provides operating voltage to the GMU 44 Magnetometer.

3.1.1 Interface Summary

The following is an interface summary for the GMU 44.

• GMU 44 to GSU 73 Interface: Power, RS-232, RS-485 (19,200 baud)

3.2 Electrical Specifications

Table 3-1. GMU 44 Electrical Specifications

Specification Characteristic

Power Requirements

G3X Installation Manual – GMU 44 Page 3-1 190-01115-01 Revision A

Supply Voltage: 14/28 VDC. See Table 1-3 for current

specifications.

3.3 Environmental Specifications

Table 3-2 lists general environmental specifications.

Table 3-2. GMU 44 Environmental Specifications

Specification Characteristic

Regulatory Compliance RTCA/DO-160D Environmental Conditions and

EUROCAE/ED-14D

Unit Software RTCA/DO-178B Level B

Operating Temperature Range

-55° C to +70° C

Altitude 55,000 Feet

3.4 GMU 44 TSO/ETSO Compliance

Table 3-3. TSO/ETSO Compliance

Applicable

Custom Logic

Device Part

Numbers

All

006-C0048-0(_)

Function

Direction Instrument, Magnetic (Gyroscopically Stabilized)

TSO/ETSO/SAE/

RTCA/EUROCAE

TSO-C6d

ETSO-C6d

AS8013A