Garmin GTX 33 Installation Manual
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Garmin GTX 33 Installation Manual

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GTX 33
Transponder

Installation Manual

190-00906-00
June, 2012
Revision F

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Summary of Contents for Garmin GTX 33

  • Page 1: Installation Manual

    GTX 33 Transponder Installation Manual 190-00906-00 June, 2012 Revision F...
  • Page 2 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...
  • Page 3 2-1 – 2-8 Section 3 3-1 – 3-6 Section 4 4-1 – 4-10 Appendix A A-1 – A-2 Appendix B B-1 – B-16 Appendix C C-1 – C-6 Appendix D D-1 – D-7 190-00906-00 GTX 33 Installation Manual Rev. F Page i...
  • Page 4 NOTE Throughout this document references made to GTX 33 shall equally apply to the GTX 33, GTX 33D, GTX 33H, and GTX 33DH, with or without Extended Squitter; except where specifically noted.

  • Page 5: Table Of Contents

    2.4 Cabling and Wiring ......................2-5 2.5 Installation Approval Considerations for Pressurized Aircraft ........2-6 2.6 Cooling Air ........................2-6 2.7 GTX 33 Mounting Requirements ..................2-7 3 INSTALLATION PROCEDURE ..............3-1 3.1 Unpacking Unit........................ 3-1 3.2 Wiring Harness Installation ..................... 3-2 3.3 Backshell Assembly ......................
  • Page 6 A.1 Static Test Loading ......................A-1 A.2 Determining Static Load Capability ................A-1 Appendix B VERSION 1 ADS-B FIELD APPROVAL COMPLIANCE MATRIX ......................B-1 Appendix C OUTLINE AND INSTALLATION DRAWINGS .....C-1 Appendix D INTERCONNECT DRAWINGS ..........D-1 GTX 33 Installation Manual 190-00906-00 Page iv Rev. F...
  • Page 7 GTX 33 HARDWARE MOD LEVEL HISTORY The following table identifies hardware modification (Mod) Levels for the GTX 33. 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.
  • Page 8 GTX 33 P/N 011-00779-50, 011-00779-70 HARDWARE MOD LEVEL HISTORY SERVICE SERVICE BULLETIN BULLETIN PURPOSE OF MODIFICATION LEVEL NUMBER DATE None at this time GTX 33 Installation Manual 190-00906-00 Page vi Rev. F...

  • Page 9: General Description

    GTX 33DH units with or without Extended Squitter Enabled; as part of a Garmin Integrated Flight Deck. Throughout this manual, the term GTX 33 applies to all versions of the GTX 33 and GTX 33D unless specifically stated otherwise.

  • Page 10: Ads-B Capabilities

    GTX 33. The GTX 33 and GTX 33D differ from the GTX 33H and GTX 33DH in the qualified DO-160 vibration categories. See the GTX 33 Environmental Qualification Form (005-00131-03) for details.

  • Page 11: Tis System Capabilities

    The TIS ground sensor uses real time track reports to generate traffic notification. Traffic display is available to aircraft equipped with a Mode S data link such as the Garmin GTX 33 transponder. Traffic can then be displayed on a Garmin GDU Primary Flight Display, GMX 200 (MX20) Multifunction Display, GNS 480 (CNX80), GTN 6XX/7XX or other compatible display unit.

  • Page 12: Interface Summary

    1.6 Interface Summary The GTX 33 provides the following interface connections via the rear connector. See Section 4 and Appendix D for connection details. • Ten (10) encoding altimeter inputs • External IDENT input • External STBY input (useful for dual transponder installations) •...

  • Page 13: Technical Specifications

    1.7 Technical Specifications It is the responsibility of the installing agency to obtain the latest revision of the GTX 33 Environmental Qualification Form. This form is available directly from Garmin under the following part number: GTX 330/GTX 33/GTX 328/GTX 23 Environmental Qualification Form, Garmin part number 005-00131-03 To obtain a copy of this form, see the dealer/OEM portion of the Garmin web site (www.garmin.com).
  • Page 14 1.7.2 General Specifications Table 1-3. GTX 33 General Specifications Characteristic Specification Regulatory Compliance; RTCA DO-160D, DO-181C Environmental Conditions GTX 33 w/ES, GTX 33D and EUROCAE/ED-73B w/ES RTCA DO-178B Level C/D (refer to Section 1.9.1 for specific Unit Software applicability) Complex Electronic Hard- RTCA/DO-254 Level C (refer to Section 1.9.1 for specific...

  • Page 15: License Requirements

    If an aircraft license is required, make application for a license on FCC form 404, Application for Aircraft Radio Station License. The FCC also has a fax-on-demand service to provide forms by fax. The GTX 33 owner accepts all responsibility for obtaining the proper licensing before using the GTX 33.

  • Page 16: Certification

    TSO standards. TSO articles must have separate approval for installation in an aircraft. The article may be installed only if performed under 14 CFR part 43 or the applicable airworthiness requirements. GTX 33 Installation Manual 190-00906-00 Page 1-8...
  • Page 17 1.9.1 GTX 33/GTX 33D TSO/ETSO/RTCA/ICAO Compliance Table 1-5. GTX 33/GTX 33D TSO/ETSO/RTCA/ICAO Compliance Applicable LRU SW Function Performance Standard Category Part Number Air Traffic Control Radar Beacon System/Mode Select 006-B0172-01 TSO-C112 Class 2A (ATCRBS/MODE S) Airborne Rev. () Equipment except...
  • Page 18 Note 1: Complies with ICAO Annex 10, Amendment 77 Tables: 2-64, 2-80, 2-96 functionality only when the Enhanced Surveillance function is enabled during configuration (refer to Section 3.6.1). Note 2: Complies with TSO-166a/ETSO-166a functionality only when the Extended Squitter function is enabled during configuration (refer to Section 3.6.1) GTX 33 Installation Manual 190-00906-00 Page 1-10 Rev. F...

  • Page 19: Reference Documents

    RTCA DO-160E. 1.10 Reference Documents The following publications are sources of additional information for installing the GTX 33. Before installing the unit, the technician should read all relevant referenced materials along with this manual. Table 1-8. GTX 33 Reference Documents...

  • Page 20: Limited Warranty

    (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.

  • Page 21: Installation Overview

    This section provides hardware equipment information for installing the GTX 33 Mode S Transponder, related hardware and optional accessories. Installation of the GTX 33 should follow the data detailed in this manual. Cabling is fabricated by the installing agency to fit each particular aircraft. The guidance of FAA advisory circulars AC 43.13-1B and AC 43.13-2B, where applicable, may be found useful for...
  • Page 22 2.2.1 Equipment Available Each of the following accessories is provided separately for the GTX 33 unit. Either rack and the remainder of the accessories is required for installation. Table 2-2. GTX 33 Accessories Item Garmin Catalog Part Number 115-00438-00 Modular Install Rack, GTX 33/GTX 33D...

  • Page 23: Installation Considerations

    • Hardware – #8-32 Panhead Machine Screw [(MS35206, AN526 or other approved fastener) (4 ea.)] for vertical mounting of the remote stand-alone rack for GTX 33 and GTX 33D. • Hardware – #8 x 100° Flathead Machine Screw [(see install drawing in Appendix C for more detail) (4 ea.)] for mounting of the remote stand-alone rack for GTX 33H and GTX 33DH.

  • Page 24: Antenna Location Considerations

    Figure 2-1. Antenna Installation Considerations • The antenna(s) (Garmin P/N 010-010160-00) or equivalent should be mounted away from major protrusions, such as engine(s), propeller(s), and antenna masts. It should also be as far as practical from landing gear doors, access doors, or other openings that could affect the radiation pattern.

  • Page 25: Cabling And Wiring

    RF or EMI interference. Check that there is ample space for the cabling and mating connectors. Avoid sharp bends in cabling and routing near aircraft control cables. The GTX 33 and GTX 33D back-plate assemblies utilize BNC-type (bayonet connection) coaxial connectors. The GTX 33H and GTX 33DH back-plate assemblies utilize TNC-type (threaded connection) coaxial connectors.

  • Page 26: Installation Approval Considerations For Pressurized Aircraft

    2.6 Cooling Air Refer to the G1000 System Installation manual, Garmin part number 190-00303-00, for information on cooling requirements. For remote mounted units, forced air cooling is not required. However, the application of forced air cooling is recommended to provide beneficial cooling if the unit is located in a confined space or near a source of heat.

  • Page 27: Gtx 33 Mounting Requirements

    4.3-pound (1.95 kg) GTX 33 unit, rack, and connectors (see Section 1.7.1 for weight information). If it is necessary to build a shelf or bracket to mount the GTX 33 stand-alone rack or it is not certain that the chosen location is of sufficient structural integrity, refer to Appendix A for validation of rack mounting structures and determining static load capability.
  • Page 28 Figure 2-2. GTX 33 Modular Rack (115-00438-00) Figure 2-3. GTX 33 Stand-Alone Rack (115-00629-00) GTX 33 Installation Manual 190-00906-00 Page 2-8 Rev. F...
  • Page 29 Figure 2-4. GTX 33H Stand-Alone Rack (011-02422-00) 190-00906-00 GTX 33 Installation Manual Rev. F Page 2-9...
  • Page 30 Figure 2-5. GTX 33 Stand-Alone Rack, Suggested Mounting Locations GTX 33 Installation Manual 190-00906-00 Page 2-10 Rev. F...

  • Page 31: Installation Procedure

    If the unit 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.

  • Page 32: Wiring Harness Installation

    Allow adequate space for installation of cables and connectors. The installer shall supply and fabricate all cables. All electrical connections to the GTX 33 are made through one 62-pin D-subminiature connector. Section 4 defines the electrical characteristics of all input and output signals. Required connectors and associated hardware are supplied with the connector kit.

  • Page 33: Backshell Assembly

    3.3 Backshell Assembly The GTX 33 connector kit includes one Garmin backshell assembly. Garmin’s backshells give the installer the ability to quickly and easily terminate shield grounds at the backshell housing using one of two methods available (SPIDER or Shield Block).
  • Page 34 5. Backshell Lid. Provides access when servicing the connector. Figure 3-1. Backshell Connector Assembly (Top: Exploded View. Bottom: Assembled.) GTX 33 Installation Manual 190-00906-00 Page 3-4 Rev. F...

  • Page 35: Weight And Balance

    4. Assemble the rear plate into the GTX 33 unit rack using screws provided with the rear plate. 5. Insert the GTX 33 into the rack, noting proper orientation as shown on the installation drawing in Appendix C.

  • Page 36: Post Installation Configuration And Checkout

    3.7.2 Interference Check Turn on and verify operation of all avionics equipment except GTX 33. Then power GTX 33 on and verify there is no interference with any other equipment in the aircraft. The operation/performance checks should be made with all other avionics turned on. Verify that there is no interference during any mode of transponder operation.
  • Page 37 If the unit is removed from the aircraft and operated, always connect J3302, (and J3303 for GTX 33D) to an antenna or a 50 Ω, 5-Watt load. The GTX 33 transmits Mode S acquisition squitter replies about once per second whether interrogations are received or not.

  • Page 38: Continued Airworthiness

    3.8 Continued Airworthiness Test according to Title 14 CFR §§ 91.411 and 91.413 as well as Part 43 Appendix F. Other than for regulatory checks, maintenance of the GTX 33 is ‘on condition’ only. GTX 33 Installation Manual 190-00906-00 Page 3-8...

  • Page 39: System Interconnects

    ALTITUDE B4 ALTITUDE D4 EXTERNAL IDENT SELECT* EXTERNAL STANDBY SELECT* NOT USED AUDIO OUT HI AUDIO OUT LO SQUAT SWITCH IN RESERVED ALTITUDE ALERT ANNUNCIATE* RESERVED AIRCRAFT POWER 1 RS-232 IN 1 190-00906-00 GTX 33 Installation Manual Rev. F Page 4-1...
  • Page 40 CURRENT TEMPERATURE PROBE IN NOT USED TIS CONNECT SELECT* AUDIO MUTE SELECT* ARINC 429 IN 4 A ARINC 429 IN 4 B ALTITUDE COMMON (GROUND) SIGNAL GROUND RESERVED RESERVED XPDR REMOTE POWER OFF GTX 33 Installation Manual 190-00906-00 Page 4-2 Rev. F...
  • Page 41 Table 4-1. P3301 Pin List Pin Name NOT USED AIRCRAFT POWER 2 NOT USED SIGNAL GROUND NOT USED AIRCRAFT POWER 2 NOT USED SWITCHED POWER OUT *Indicates Active Low (Ground to activate) 190-00906-00 GTX 33 Installation Manual Rev. F Page 4-3...

  • Page 42: Power Functions

    Temperature input is used for Outside Air Temperature (OAT) display and Density Altitude computations. The type of temperature probe required is a current sensor type, such as a Garmin GTP 59 or an AD590-KH or AD592 made by Analog Devices. The GTX 33 is not configurable for different types of temperature sensors.

  • Page 43: Altitude Functions

    4.4 Altitude Functions Altitude functions with pin assignments are shown for reference since the altitude function is available in the GTX 33. In the Garmin Integrated Flight Deck system, altitude data is received from the GIA 63 in RS-232 format.
  • Page 44 P3301 4.4.2 Altimeter Interconnect, Dual GTX 33 Installation For complete dual installation in which digital altitude encoders are connected to the GTX 33, it is best to install two digital sources, connecting one encoder to each transponder. 4.4.3 Altimeter Selection Priority When connecting the transponder to a GNS 480 (CNX80) or GTN 6XX/7XX the installer must be aware of the GTX 33 priority for selecting encoded altimeter interconnections.

  • Page 45: Discrete Functions

    GTX 33 suppression I/O pulses may not be compatible with all models of DME. Known incompatible units include the Bendix/King KN 62, KN 64 and KNS 80. These models have an output-only suppression port and can be damaged by the GTX 33 mutual suppression output. In this case, leave the suppression pin open.

  • Page 46: Serial Data Electrical Characteristics

    GPS, Airdata, AHRS, EFIS/Airdata, and ADLP 429 inputs, functioning as an ARINC 429 data concentrator. The GTX 33 has four ARINC 429 input ports, making it capable of taking altitude, air data, heading, EFIS selected course and possible future features, and then concentrating it on the ARINC 429 OUT 2 ports for possible data link applications.
  • Page 47 ARINC 429 IN 4B P3301 SIGNAL GROUND P3301 SIGNAL GROUND P3301 The ARINC 429 outputs conform to ARINC 429 electrical specifications when loaded with up to five standard ARINC 429 receivers. 190-00906-00 GTX 33 Installation Manual Rev. F Page 4-9...
  • Page 48 Static Air Temperature (degrees) 100 ms Joystick Lat 500 ms Joystick Lon 500 ms True Heading 100 ms Magnetic Heading (Degrees) 100 ms GA Equipment Identifier 500 ms Equipment Identifier 500 ms GTX 33 Installation Manual 190-00906-00 Page 4-10 Rev. F...

  • Page 49: Rs-232 Input/Output, Software Update Connections

    4.7 RS-232 Input/Output, Software Update Connections When the GTX 33 is installed in a system other than a Garmin Integrated Flight Deck an optional RS-232 serial data connector should be installed in the aircraft for future software upgrades, negating the need to remove the transponder from the aircraft.
  • Page 50 This page intentionally left blank GTX 33 Installation Manual 190-00906-00 Page 4-12 Rev. F...

  • Page 51: Appendix A Construction And Validation Of Structures

    Since the combined weight of the GTX 33 and its equipment mounting rack and connector is 4.3 lbs, the static loads which must be applied (Load Factor x 4.3 lbs.) will be as follows: Table A-1.
  • Page 52 Examine all aircraft stringers, bulkheads and skin surfaces, which may have direct or indi- rect contact with the fabricated shelf. If it is determined that no damage or permanent deformation has occurred, the structure is of sufficient strength and the GTX 33 equip- ment rack may be permanently mounted on it.

  • Page 53: Appendix B Version 1 Ads-B Field Approval Compliance Matrix

    This section provides a compliance matrix template which installers may use to obtain field approvals for the activation of the GTX 33 ADS-B Extended Squitter function, as described in Section 1.3. The table provides a break-down of EASA AMC 20-24 requirements and corresponding compliance statements.
  • Page 54 Supported in all Mode S transmissions from the A unique ICAO 24 bit aircraft address (contained within each ADS-B mes- GTX 33. Aircraft address data sage transmission); is sourced from transponder internal configuration settings. Supported in BDS (0,5) Airborne Position.
  • Page 55 Emergency Status and Data is sourced from current Emergency Indicator; Mode A code status. The Mode A code is entered via GTX 33 con- trol and display device. Version Number (in aircraft operational status message, if Supported in BDS (6,5) Aircraft avionics are DO-260A Operational Status.
  • Page 56 Horizontal Position and Horizontal Position Quality Indicator(s) Other: Requirement: 10 (Appendix 3, Table 1) ADS-B System Continuity The GTX 33 meets the continuity requirement of Requirement: 2*10 (Appendix 3, Table 1) 2*10 /fh. Horizontal Position Latency See Item 28 Response.
  • Page 57 Garmin GNS/GTN Equipment: The GPS/SBAS missed alert probability is 10 /hr in all modes. Horizontal Position Source Integrity - Alert Failure Probability Other: (Appendix 3, Table 2) Requirement: 10 (per position source failure event) 190-00906-00 GTX 33 Installation Manual Rev. F Page B-5...
  • Page 58 Requirement: 1 sec (as for SSR) latency requirement for SSR is met. This data is sourced within the GTX 33 unit, based on internal Aircraft Identification, SPI, Emergency Status (Appendix 3, Table configuration settings, IDENT status and Mode A code. Data...
  • Page 59 Table B-1. Version 1 ADS-B Field Approval Compliance Matrix Item # AMC Item Compliance Summary Section # GTX 33 design assurance is Level C which satisfies the /flight hour requirement. The (overall) ADS-B System integrity level with respect to the processing of...
  • Page 60 8.3.1 Operational Status. Supported in BDS (6,1) 8.3.1 Emergency indicator Emergency/Priority Status. Supported in BDS (0,5) 8.3.1 Barometric altitude Airborne Position. Supported in BDS (0,5) 8.3.1 Quality indicator (NUC/NIC) Airborne Position. GTX 33 Installation Manual 190-00906-00 Page B-8 Rev. F...
  • Page 61 Airborne Ground Velocity Airborne Velocity. For 1090 MHz Extended Squitter ADS-B transmit systems, this should be demonstrated by the relevant tests The GTX 33 is compliant with: documented in: • ED-73B/ETSO-2C112b (or DO- 8.3.2 181C); • ETSO – 2C112b (DO-181C).
  • Page 62 GPS position source per DO- the accuracy information of the hori- 260A. zontal position sources. In case of ED-102/DO-260 based Not Applicable – GTX 33 is ADS-B transmit systems, the NUC 8.3.5 Quality Indicator value need to be compliant to DO-260A not encoded based on the integrity con- DO-260.
  • Page 63 (as expressed in section 8.4.3). • “Correct encoding” -The GTX 33 Any eligible horizontal position data encoding is compliant with DO- source needs to meet the 260A.
  • Page 64 • ETSO C-129A, TSO C-129 or Other: TSO C-129A; or 8.4.6.2 • ETSO C-145/C-146 or TSO C- 145A/C-146A, capable of delivering position data with a periodic interval of at least 1.2 s GTX 33 Installation Manual 190-00906-00 Page B-12 Rev. F...
  • Page 65 ADS-B transmit system, in a format compliant with ED-102/DO-260 or DO-260A, as appropriate. [Section heading, no Barometric Altitude Data Sources compliance statement req’d] 190-00906-00 GTX 33 Installation Manual Rev. F Page B-13...
  • Page 66 Per Section 4.4 of this manual, The transponder should indicate cor- rectly the altitude resolution (quanti- GTX 33 reports altitude in 25- sation) used, i.e. 25ft (from an foot increments when altitude is appropriate source, default provided serially, and 100-foot resolution) or 100ft (Gillham’s coded...
  • Page 67 Special Position Identification (SPI) For ATC transponder-based The IDENT key is available to ADS-B transmit systems, the SPI the pilot on the GTX 33 control and capability needs to be provided. The display device, or a SPI capability should remote mounted IDENT button be integrated into the transponder may also be installed.
  • Page 68 (including a velocity quality indicator) is recommended to be provided. Special Position Identification (SPI) (OPTIONAL) For non-ATC transponder-based Not applicable – GTX 33 uses ADS-B transmit systems (i.e. installa- ATC transponder-based 8.9.2 tions based on system. dedicated ADS-B transmitters), a dis-...
  • Page 69 Item # AMC Item Compliance Summary Section # Emergency Status/Emergency Indica- (OPTIONAL) For non-ATC transponder-based Not applicable – GTX 33 uses ADS-B transmit systems (i.e. installa- 8.9.3 ATC transponder-based tions based on system. dedicated ADS-B transmitters), a dis- crete input or a control panel should...
  • Page 70 This page intentionally left blank GTX 33 Installation Manual 190-00906-00 Page B-18 Rev. F...

  • Page 71: Appendix C Outline And Installation Drawings

    APPENDIX C OUTLINE AND INSTALLATION DRAWINGS Figure C-1. GTX 33 in Modular Rack, Outline Drawing 190-00906-00 GTX 33 Installation Manual Rev. F Page C-1...
  • Page 72 APPENDIX C OUTLINE AND INSTALLATION DRAWINGS Figure C-2. GTX 33 G1000 Connector/Rack Assembly Drawing 190-00906-00 GTX 33 Installation Manual Rev. F Page C-2...
  • Page 73 APPENDIX C OUTLINE AND INSTALLATION DRAWINGS Figure C-3. GTX 33 Remote Stand-Alone Rack/Connector Assembly (Sheet 1 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page C-3...
  • Page 74 APPENDIX C OUTLINE AND INSTALLATION DRAWINGS Figure C-4. GTX 33 Remote Stand-Alone Rack/Connector Assembly (Sheet 2 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page C-4...
  • Page 75 APPENDIX C OUTLINE AND INSTALLATION DRAWINGS Figure C-5. GTX 33H Remote Stand-Alone Rack/Connector Assembly (Sheet 1 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page C-5...
  • Page 76 APPENDIX C OUTLINE AND INSTALLATION DRAWINGS Figure C-6. GTX 33H Remote Stand-Alone Rack/Connector Assembly (Sheet 2 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page C-6...

  • Page 77: Appendix D Interconnect Drawings

    APPENDIX D INTERCONNECT DRAWINGS Figure D-1. GTX 33 Typical Garmin Integrated Flight Deck Interconnect Wiring Diagram 190-00906-00 GTX 33 Installation Manual Rev. F Page D-1...
  • Page 78 APPENDIX D INTERCONNECT DRAWINGS Figure D-2. GTX 33 to GNS 480 (CNX 80) Simplified Interconnect Wiring Diagram 190-00906-00 GTX 33 Installation Manual Rev. F Page D-2...
  • Page 79 APPENDIX D INTERCONNECT DRAWINGS Figure D-3. GTX 33 to MFD, Simplified Interconnect Wiring Diagram 190-00906-00 GTX 33 Installation Manual Rev. F Page D-3...
  • Page 80 APPENDIX D INTERCONNECT DRAWINGS Figure D-4. Dual GTX 33 to GNS 480 (CNX80) Interconnect Wiring Diagram, Single Altitude Encoder (Sheet 1 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page D-4...
  • Page 81 APPENDIX D INTERCONNECT DRAWINGS Figure D-5. Dual GTX 33 to GNS 480 (CNX80) Interconnect Wiring Diagram, Single Altitude Encoder (Sheet 2 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page D-5...
  • Page 82 APPENDIX D INTERCONNECT DRAWINGS Figure D-6. Dual GTX 33 to GTN 6XX/7XX Interconnect Wiring Diagram, Encoding Altitude Connections (Sheet 1 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page D-6...
  • Page 83 APPENDIX D INTERCONNECT DRAWINGS Figure D-7. Dual GTX 33 to GTN 6XX/7XX Interconnect Wiring Diagram, Encoding Altitude Connections (Sheet 2 of 2) 190-00906-00 GTX 33 Installation Manual Rev. F Page D-7...

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