Garmin G3X Touch - Sensor Wiring Examples W;Gsu 73; Page 1 of 2 Fuel Quantity and Fuel Flow Examples (W;Gsu 73)

Garmin G3X Touch

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190-01115-01 G3X/G3X Touch Installation Manual - Sensor Wiring Examples

Rev. AC Page 29-7

29.3 Sensor Wiring Examples w/GSU 73

Figure 29-3.1 Page 1 of 2 Fuel Quantity and Fuel Flow Examples (w/GSU 73)

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Table of Contents

Default Chapter2
- Record of Revisions2
- Current Revision Description3
- Definitions of Warnings, Cautions and Notes4
- Aviation Limited Warranty7
- Table of Contents8
Inventory of Materials15
- Unpacking Unit15
- Required Garmin Equipment15
  - Garmin LRU List for G3X Systems15
  - Section 1 Inventory of Materials15
- Optional Garmin Equipment16
- Optional Garmin Lrus18
- Required Non-Garmin Equipment19
- Optional Non-Garmin Equipment21
- Optional 3Rd Party Sensors/Lrus21
- Garmin Software and Documents21
- Optional GMU 22 Mounting Racks21
- Optional Garmin Equipment (Non-LRU)21
- System Overview22
- Electrical Considerations33
- Wiring/Cabling Considerations35
- Mechanical Considerations45
  - Physical Specifications45
  - G3X LRU Physical Specifications45
- Lru/Sensor Installation Information48
- Equipment Description49
- GAD 27 Unit View49
GAD 27 (Flaps/Lights/Trim Controller) Installation49
- Aircraft Trim50
- Light Control with Flashing50
- Lighting Bus Outputs50
- Status LED50
- Contents of GAD 27 Connector Kit51
- Equipment Available51
- General Specifications51
- Mounting Requirements51
- Required Equipment51
- Unit Installation51
- Outline and Installation Drawings52
- GAD 29 Unit View54
GAD 29 (ARINC 429 Adapter) Installation54
- Equipment Description54
  - Additional Equipment Required55
  - Contents of GAD 29 Connector Kit55
- Equipment Available55
- General Specifications55
- Mounting Requirements55
- Unit Installation55
- Outline and Installation Drawings56
GAP 26 (Pitot/Aoa Probe) Installation59
- Equipment Description59
- Equipment Available60
- General Specifications60
- Mounting Location60
- Required Equipment60
- Unit Installation60
- Outline and Installation Drawings65
- GAP 26 Heater Control Box66
GDU 37X (Display Unit) Installation67
- Equipment Description67
  - GDU 37X Unit View67
  - Contents of GDU 37X Connector Kit68
- General Specifications68
- Installation Information68
- Antennas70
- Grounded Connector Shell70
- Mounting Requirements70
- Panel Cutout Template70
- Unit Installation70
  - GDU 37X Panel Cutout Template71
  - GDU 37X Outline Drawing72
- Outline and Installation Drawings72
- GDU 37X Assembly/Panel Cutout Drawing73
GDU 45X (Display Unit) Installation74
- Equipment Description74
  - GDU 45X Unit View74
  - Contents of GDU 45X Installation Kit75
- General Specifications75
- Installation Information75
  - Contents of GDU 45X Connector Kit76
  - GDU 45X PFD Configuration Module76
- Unit Installation76
- Antennas77
- Mounting Requirements77
- GDU 45X Outline Drawing78
- Outline and Installation Drawings78
  - GDU 45X Assembly Drawing79
  - GDU 45X Panel Cutout Drawing80
GDU 46X (Display Unit) Installation82
- Equipment Description82
  - GDU 46X Unit View82
  - Contents of GDU 46X Installation Kit83
- General Specifications83
- Installation Information83
  - Contents of GDU 46X Connector Kit84
  - GDU 46X PFD Configuration Module84
- Unit Installation84
- Antennas85
- Mounting Requirements85
- GDU 46X Outline Drawing86
- Outline and Installation Drawings86
  - GDU 46X Assembly Drawing87
  - GDU 46X Panel Cutout Drawing88
GDU 470 (Display Unit) Installation90
- Equipment Description90
- GDU 470 Unit View90
- General Specifications91
- Installation Information92
- Antennas93
- Mounting Requirements93
- Panel Drilling Guide93
- Unit Installation93
- GDU 470 Outline Drawing94
- Outline and Installation Drawings94
Section 10 GEA 24 (EIS Interface) Installation98
- Equipment Description98
  - GEA 24 Part Numbers99
  - Contents of GEA 24 Connector Kit99
- Equipment Available99
- General Specifications100
- Unit Installation100
- Mounting Requirements100
- GEA 24 Outline Drawing101
- Outline and Installation Drawings101
  - GEA 24 Assembly Drawing102
  - GI 260 Unit View104
Section 11 GI 260 (AOA Indicator) Installation104
- Equipment Description104
- Equipment Available104
- Unit Calibration105
- Unit Operation105
- GI 260 Display105
- General Specifications105
- Unit Installation105
- GI 260 Outline/Assembly Drawing106
- Outline and Installation Drawings106
Section 12 GMC 305 (AFCS Mode Controller) Installation107
- Equipment Description107
- Equipment Available107
- Mounting and Wiring Requirements108
  - Fasteners108
  - Contents of Mounting Kit108
- General Specifications108
- GMC 305 Outline Drawing109
- Outline and Installation Drawings109
Section 13 GMC 307 (AFCS Mode Controller) Installation113
- Contents of GMC 307 Installation Kit113
- Equipment Available113
- Equipment Description113
  - GMC 307 Part Numbers113
  - GMC 307 Unit View113
- General Specifications114
- Mounting and Wiring Requirements114
  - Pawl Latch114
  - GMC 307 Outline Drawing115
- Outline and Installation Drawings115
Section 14 GMU 11 (Magnetometer) Installation119
- Equipment Description119
- General Specifications119
- Equipment Available120
- Unit Installation120
- Outline and Installation Drawings123
  - GMU 11 Installation Drawing124
  - GMU 22 Unit View125
Section 15 GMU 22 (Magnetometer) Installation125
- Equipment Description125
- General Specifications125
- Equipment Available126
- Unit Installation126
- Outline and Installation Drawings130
Section 16 GPS 20A (WAAS GPS Position Source) Installation135
- Equipment Description135
  - GPS Status LED Indications136
  - GPS 20A Part Numbers136
- Statement of Compliance (Per AC 90-114A CHG1)136
- Equipment Available136
- Contents of GPS 20A Connector Kit137
- General Specifications137
- Mounting Requirements137
- Unit Installation137
- Antennas137
- Antenna Cable Requirements137
- GPS 20A Outline Drawing138
- Outline and Installation Drawings138
  - GPS 20A Installation Drawing139
  - GSA 28 Unit View141
Section 17 GSA 28 (Autopilot Servo) Installation141
- Equipment Description141
  - GSA 28 Part Numbers142
  - GSA 28 Power Specifications142
- Equipment Available142
- General Specifications142
- Required Equipment144
- Optional Attachments145
- Unit Installation145
- Unit Wiring157
- Outline and Installation Drawings157
Section 18 GSU 25/25B (Ahrs/Air Data Sensor Unit) Installation184
- Equipment Description184
- General Specifications186
- Required Equipment186
- Mounting/Calibration Overview187
- Unit Installation187
- Outline and Installation Drawings191
Section 19 GSU 73 (Sensor Unit) Installation196
- Equipment Description196
  - Features Summary197
  - GSU 73 Hardware Mod Level History197
- General Specifications197
- Required Equipment198
- Unit Installation199
- Outline and Installation Drawings202
  - GSU 73 Orientation Drawings203
  - GTP 59 Part Number204
Section 20 GTP 59 (Temperature Probe) Installation204
- Equipment Description204
- GTP 59 Outside Air Temperature Kit205
- General Specifications205
- Unit Installation205
- Parts Needed for GTP 59 Installation206
- GTP 59 Icing207
- GTP 59 O.A.T. Probe Installation Drawing208
- Outline and Installation Drawings208
  - GTR 20 Unit View209
  - Available Units209
Section 21 GTR 20 (VHF Communications Radio) Installation209
- Equipment Description209
- Equipment Available210
  - Transmitter Specifications211
  - Receiver Specifications211
- Installation Considerations212
- Antenna Considerations213
- Interference of GPS214
- Mounting Considerations215
- Mounting, Wiring, and Power Checks216
- Outline and Installation Drawings218
  - GTR 20 Outline Drawing (Mounting Brackets on Sides)219
  - GTR 20 Installation Drawing220
Section 22 GPS/XM Antenna Installation221
- Non-Garmin Antennas221
- Garmin Antennas222
  - GPS or GPS/WAAS Antenna Minimum Requirements223
  - XM Satellite Radio Antenna Minimum Requirements223
- Antenna Mounting Considerations224
- Teardrop Footprint Antenna Installation (GA 35, GA 55, and GA 56)229
- ARINC 743 Footprint Antenna Installation (GA 36, GA 37, GA 55A, GA 57X)236
- Non-Structural Mount Installation245
- Engine/Airframe Sensor Options258
- Compatible Engine/Airframe Input Sensors258
Section 23 Engine/Airframe Sensor Installation258
- EIS Display (Engine Bar)262
- Contents of G3X Sensor Kit, 4 Cylinder Lycoming/Continental263
- Contents of G3X Sensor Kit, 6 Cylinder Lycoming/Continental263
- Engine Sensor Applications263
- Engine Sensor Installation271
- Cable Connector Installation288
- TNC Connector Installation288
Section 24 Connector Installation Instructions288
- Thermocouple Installation into a Backshell289
  - Insulation/Contact Clearance289
  - Jackscrew Backshell Thermocouple Installation290
- Jackscrew Configuration Module Installation into a Jackscrew Backshell291
- Jackscrew Backshell Installation Instructions294
- GAD 27 (Flaps/Lights/Trim Controller)306
- J271 Connector306
Section 25 LRU Pinouts306
- J272 Connector308
- Terminal Block (TB273) Connector309
- Discrete Inputs310
- Power310
- Flap Inputs311
- Lighting Bus311
- Lighting Bus Inputs311
- External Lighting Discrete Inputs312
- Motor Disconnect Input312
- Pitch Trim Inputs313
- Roll Trim Inputs313
- Yaw Trim Inputs313
- GAD 29 (ARINC 429 Adapter)314
  - J291 Connector314
  - J292 Connector315
  - Arinc 429 Rx/Tx316
- GDU 37X (Display Unit)318
  - J3701 Connector318
  - Aircraft Power320
  - Mode Selections, CDU System ID Program Pins320
  - Rs-232321
  - Serial Data321
  - Lighting322
  - Mono Audio322
  - Stereo Audio322
- GDU 4XX (Display Unit)323
  - GDU 4XX to GSU 25 Backup Data Path Connections323
  - P4501/4601/4701 (P4X01) Connector323
  - P4502/4602/4702 (P4X02) Connector324
  - P4503/4603/4703 (PX03) Connector326
  - Video Input327
  - Mode Selections, GDU System ID Program Pins328
- GEA 24 (EIS Interface)332
  - J241 Connector332
  - J242 Connector333
  - J243 Connector334
  - J244 Connector335
  - Digital Inputs338
  - Discrete Outputs340
  - GP (General Purpose) Inputs341
  - Pressure Inputs342
  - Voltage Inputs342
  - GEA 24 EIS #2 Configuration343
  - Shunt343
  - System ID343
  - Temperature Inputs344
  - Transducer Output Power346
- GI 260 (AOA Indicator)347
  - GI 260 Pigtail Harness347
  - Pigtail Connections347
  - RS-232 Channel348
- GMC 305 (AFCS Mode Controller)349
- J3051 Connector349
- GMC 307 (AFCS Mode Controller)351
- J3071 Connector351
- GMU 11 (Magnetometer)353
  - J441 Connector353
  - Power Function353
  - Unit ID353
- GMU 22 (Magnetometer)354
- Rs-485354
- GPS 20A (WAAS GPS Position Source)355
- J201 Connector355
- GSA 28 (Autopilot Servo)357
  - J281 Connector357
  - AP Disconnect358
  - ID Strap358
  - Trim359
- GSU 25/25B (Ahrs/Air Data Sensor Unit)360
  - J251360
  - J252361
  - RS-485 Input363
  - Connector Description364
- GSU 73 (Sensor Unit)364
  - J731 Connector364
  - Rear View of Connector End Plate364
  - J732 Connector366
  - Power I/O368
  - Magnetometer Power369
  - ARINC 429 Input/Output370
  - RS-232 Input/Output370
  - Serial Data Electrical Characteristics370
  - Configuration Module Interface371
  - Discrete I/O372
  - Analog Input Configuration373
  - Frequency Counter Inputs375
  - Fuel Select Outputs375
- GTP 59 (Temperature Probe)376
- GTP 59 Wire Color Designations376
- GTR 20 (VHF Communications Radio)377
  - J2001 Connector377
  - J2001 Looking at Rear of Unit377
  - Aux Mono Audio379
  - Headset Audio379
  - MIC Audio379
  - Music Inputs380
  - Pilot/Copilot PTT Inputs380
  - Receiver Audio380
  - TX Interlock381
- GTX 23 (Mode S Transponder)382
- Discrete Functions384
- Core Interconnect Drawings W/Gsu 25 And/Or GAD 29386
Section 26 G3X W/Gsu 25 And/Or GAD 29 Interconnect Drawings386
- GDU/GMU 22/GSU 25 Interconnect Drawing387
- GDU/GMU 11/GSU 25 Interconnect Drawing388
- Power, Backup Power (4 AH), and Antennas Interconnect Drawing389
- Power, Backup Power (3 AH), and Antennas Interconnect Drawing390
- GMU 22/GSU 25/GTP 59/GI 260 Interconnect Drawing391
- GMC 30X/GSA 28 Interconnect Drawing392
- GSA 28 - Trim Switch Interconnect Drawing393
- GEA 24/GSU 25 - GDU 37X/4XX Backup Data Path Interconnect Drawing394
- External Interconnect Drawings W/Gsu 25395
- Core Interconnect Drawings419
- External Interconnect Drawings W/Gsu 73423
Section 28 G3X W/Gtr 20 Interconnect Drawings433
- Notes for Section 28 Drawings434
- Single GTR 20 Interconnect Drawings435
- Dual GTR 20 Interconnect Drawings439
- J2001 Connector Layout441
- Sensor Wiring Examples442
- Notes for Section 29 Drawings442
- Sensor Wiring Examples W/Gea 24443
- Sensor Wiring Examples W/Gsu 73448
- Notes for Section 30 Drawings453
Section 30 Lycoming/Continental Sensor Wiring Examples453
- GEA 24 - Lycoming/Continental Sensor Drawings454
  - GEA 24 - 4/6 Cylinder Lycoming/Continental Sensor Wiring Examples454
  - GEA 24 - Lycoming IE2 Electronic Control Unit456
- GSU 73 - Lycoming/Continental Sensor Drawings457
- Notes for Section 31 Drawings460
Section 31 Rotax Sensor Wiring Examples460
- GEA 24 - Rotax Sensor Drawings461
  - GEA 24 - Rotax 912/914 Sensor Wiring Examples461
  - GEA 24 - Rotax 912Is/915Is FADEC Wiring Example463
- GSU 73 - Rotax Sensor Drawings464
- GSU 73 - Rotax 912/914 Sensor Wiring Examples464
- Notes for Section 32 Drawings466
Section 32 Jabiru Sensor Wiring Examples466
- GEA 24 - Jabiru Sensor Drawings467
- GSU 73 - Jabiru Sensor Drawings469
- Recommended Test Equipment471
Section 33 GDU 37X Configuration and Post Installation Checkout471
- Configuration Mode472
- Garmin Database Updates610
- External Interface Configuration (Garmin Units Only)615
- GDU Splash Screen618
- Checklist Editor618
  - GTN 6XX GTN Setup Page618
  - GTN 7XX GTN Setup Page618
Section 34 GDU 4XX Configuration and Post Installation Checkout619
- Configuration Mode Page620
- Recommended Test Equipment620
- Garmin Database Updates792
- Siriusxm® Activation Instructions (GDU 455/465 Only)795
- External Interface Configuration (Garmin Units Only)796
- Checklist Editor799
- General Troubleshooting800
Section 35 Troubleshooting800
- CAN Network Troubleshooting801
- Air Data Troubleshooting802
- Invalid OAT and TAS Indications802
- Engine Indication Troubleshooting803
  - Airspeed and Altitude Failure Indications803
  - Engine/Airframe Failure Indications803
- ADAHRS Troubleshooting804
- Post Installation Calibration Procedures806
- GSU 73 Data Logging807
- Sending Troubleshooting Data to Garmin809
Section 36 Maintenance810
- Gsu 73811
- Gdu 37X/Gdu 4Xx813
- New GDU (PFD) Configuration Module Installed813
- New GDU(S) Installed813
- Return to Service Information813
Appendix A Airframe Specific Installation Guidance817
- A.2 Van's Aircraft818
- A.3 Lancair Aircraft821
Appendix B RS-232 Text Output Format836
- B.4 Attitude/Air Data Message Format837
- B.5 Engine Data Message Format838
- B.6 GPS Data Message Format840
Appendix C LRU Performance Specifications/Licensing/Compliance842
- C.6 Gmc 305/307843
- C.13 Gtr 20/200848
  - Certification848
  - License Requirements848

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