Garmin GTR 205 Installation Manual
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Garmin GTR 205 Installation Manual

Garmin GTR 205 Installation Manual

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GTR 205/GNC 215
TSO Installation Manual
190-02766-01
January 2025
Revision 6

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Summary of Contents for Garmin GTR 205

  • Page 1 GTR 205/GNC 215 TSO Installation Manual 190-02766-01 January 2025 Revision 6...
  • 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 copy of this manual or of any revision...

  • Page 3: Revision Record

    Initial release of document. 12/08/23 Added GTR 205 information. 01/23/24 Added software v2.10 functionality. 02/28/24 Added software v2.11 functionality. 06/03/24 Minor edits to document. 01/28/25 Added software v2.22 functionality. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page ii...
  • Page 4 Added information the tail number is used as the file name when saving to an SD card. 6.4.1 Added definitions of red padlock and green padlock icons to “Enablement” section. 6.4.2 Added “Database,” “ICS/Audio (GTR 205),” and “Intercom (GNC 215)” to bulleted list in section. 6.4.2 Added “Database” section. 6.4.2 Added “ICS/Audio (GTR 205)”...
  • Page 5 Added character “s” to table 9-46 “NAV Receiver Status Message Format.” Added C04, C05, C15, C16, C17, C18, V20, V21, V22, and V23 to table 9-49 “Input Message 9.2.4 Summary.” 9.2.4 Added V24 to table 9-50 “Output Message Summary.” 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page iv...
  • Page 6 CHANGE DESCRIPTION Added information for helicopter installations in figure 10-4 “Mounting Rack Installation.” Updated pin number for GNX 375 and added note 9 to figure 11-6 “GTR 205/GNC 215 GPS Interconnect.” Updated NAV audio pin numbers for GMA 245 in figure 11-7 “Audio Panel Interconnect.”...
  • Page 7 United States without first obtaining an export license. This information in this document is subject to change without notice. Visit Garmin’s website (www.garmin.com) for updates and supplemental information regarding the operation of Garmin products.
  • Page 8 IN A MONITORING STATE, CAN DISRUPT GPS/SBAS PERFORMANCE. NOTE Garmin recommends installation of the GTR 205 and GNC 215 by a Garmin authorized installer. To the extent allowable by law, Garmin will not be liable for damages resulting from improper or negligent installation.
  • Page 9 Garmin NAV/COM Garmin Navigation System Global Positioning System Glideslope Garmin Touchscreen Navigator Garmin Transceiver Radio HSDB High Speed Data Bus ICAO International Civil Aviation Organization Intercom System Instrument Landing System 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page viii...
  • Page 10 Secure Digital (Card) Source Destination Identification Threaded Neill-Concelman Technical Standard Order UNICOM Universal Communications Vertical Deviation Indicator VLOC VOR/Localizer Very High Frequency Omni-directional Range VSWR Voltage Standing Wave Ratio 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page ix...

  • Page 11: Table Of Contents

    Continued Airworthiness ..........................7-1 Environmental Qualification Form ........................8-1 Data Format ..............................9-1 RS-232 Aviation Format .........................9-2 RS-232 NMEA Data Format ........................9-6 10 Mechanical Drawings ........................... 10-1 11 Interconnect Diagrams ..........................11-1 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page x...
  • Page 12 Preferred Method of Shield Termination on Backshell Assembly ............4-13 Figure 4-3 Connector and Backshell Assembly ....................4-15 Figure 4-4 Backshell Assembly (Potted Configuration Module) .................4-16 Figure 6-1 GTR 205/GNC 215 System Configuration Map ..................6-2 Figure 6-2 Controls in Configuration Mode .......................6-4 Figure 6-3 SYS Info Page...........................6-5 Figure 6-4 SW Upload Page ..........................6-5...
  • Page 13 Figure 11-8 GTR 205/GNC 215 EFIS Interconnect ....................11-13 Figure 11-9 Switches Interconnect ........................11-15 Figure 11-10 GNC 215 - Serial DME Interconnect ....................11-16 Figure 11-11 GTR 205/GNC 215 Antenna Interconnect..................11-18 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page xii...
  • Page 14 Table 5-25 GTR/GNC Ethernet (HSDB) Pins ......................5-17 Table 5-26 Headset Output Pins .........................5-17 Table 5-27 Discrete Output Pins .........................5-17 Table 6-1 Unit ID Selections ..........................6-7 Table 6-2 Database Selections ..........................6-8 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page xiii...
  • Page 15 Table 9-31 NAV Volume Level Message Format ....................9-23 Table 9-32 NAV Keypad Input Message Format ....................9-23 Table 9-33 COM Transceiver Status Message Format ..................9-24 Table 9-34 COM Volume Level Message Format ....................9-25 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page xiv...
  • Page 16 Table 9-46 NAV Receiver Status Message Format ....................9-32 Table 9-47 NAV Audio Mode Message Format ....................9-32 Table 9-48 NAV Volume Level Message Format ....................9-33 Table 9-49 Input Message Summary ........................9-33 Table 9-50 Output Message Summary .......................9-34 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page xv...
  • Page 17 The Declaration of Design and Performance section contains the definition and statement of compliance of the GTR 205 and GNC 215. The section is written in accordance with European Aviation Safety Agency (EASA) Commission Regulation (EU) No 748/2012 date 3 August 2012. Physical, mechanical, and electrical information for use in the planning and design of installations of the GTR/GNC into an aircraft is provided in this manual.

  • Page 18: Declaration Of Design & Performance

    1.2.1 GTR 205 The GTR 205 has a COM transceiver with 10W COM transmit power. A software enablement is available to allow for NVIS and 16W COM transmit power. The COM radio has pilot-controlled options of 8.33 kHz or 25 kHz channel ®...
  • Page 19 NAVAID. A summary of system functions are listed in table 1-11. Features • HSDB interfaces • ARINC 429 interfaces • RS-232 interfaces • Reverse frequency lookup • CAN interfaces • Intercom system 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 1-3...

  • Page 20: General Specifications

    10.32" (262.1 mm) of aircraft panel to rear of connector backshells) GTR 205 weight (unit only) 2.2 lbs. (1.0 kg) GTR 205 installed with rack and connectors 2.8 lbs. (1.4 kg) GNC 215 weight (unit only) 2.3 lbs. (1.0 kg) GNC 215 installed with rack and connectors 3.1 lbs.

  • Page 21: Com Specifications

    At least 35 dB (SNR) Stuck mic time-out 30 seconds time-out, reverts to receive Less than 5% distortion when the transmitter is at 90% modulation at Demodulated audio distortion 350 to 2500 Hz. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 1-5...

  • Page 22: Vor Specifications (Gnc 215)

    Audio distortion Less than 10% at all audio output levels up to 65 mW. Meets FM interference immunity performance requirements of ICAO FM immunity annex 10, volume I, paragraph 3.3.8. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 1-6...

  • Page 23: Loc Specifications (Gnc 215)

    Audio distortion Less than 10% at all audio output levels up to 65 mW. Meets FM interference immunity performance requirements of ICAO FM immunity annex 10, volume I, paragraph 3.1.4. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 1-7...

  • Page 24: Glideslope Specifications (Gnc 215)

    • 150 Hz modulation is absent • 90 Hz modulation is absent • 90 Hz and 150 Hz modulations are both absent • RF signals are absent Spurious response Greater than 60 dB. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 1-8...

  • Page 25: Current Draw Specifications

    CAUTION THE VHF TRANSMITTER IN THIS EQUIPMENT IS GUARANTEED TO MEET FCC ACCEPTANCE OVER THE OPERATING TEMPERATURE RANGE. MODIFICATIONS NOT EXPRESSLY APPROVED BY GARMIN COULD INVALIDATE THE LICENSE AND MAKE IT UNLAWFUL TO OPERATE THE EQUIPMENT. The Telecommunications Act of 1996, effective February 8, 1996, provides the FCC discretion to eliminate radio station license requirements for aircraft and ships.

  • Page 26: 1.10 Certification

    1-10, and when installed according to the installation manual. The installer must verify that non-Garmin devices to be interfaced meet the installation requirements identified in this manual to assure the installed system will comply with the Garmin TSO/ETSO Authorization. Garmin installation requirements will usually specify that the interfaced device has appropriate TSO/ETSO authorization, and in some cases, such as for TSO-C144 antennas, may also require that the non-Garmin device meet additional Garmin specifications.

  • Page 27: Table 1-11 System Functions

    Table 1-12 Standard TSO/ETSO Deviations TSO/ETSO Deviation 1. Garmin was granted a deviation from the TSO to use RTCA DO-178B as the standard for Software Qualification. All TSOs 2. Garmin was granted a deviation from the TSO to use RTCA DO-160G as the standard for Environmental Qualification and Test Procedures of Airborne Equipment.

  • Page 28: 1.11 Gtr/Gnc Database

    The GTR/GNC has a database of frequencies for airports and VORs. Users update the frequency database by purchasing database subscription updates from Garmin or Jeppesen. The frequency database is stored internally and uses a micro-SD card to transfer the database into the unit. Refer to the applicable GTR/GNC pilot's guide or go to flyGarmin.com...

  • Page 29: Limitations

    Part 23 and Part 27 aircraft. To meet requirements for Part 23 Class II, Class III and Class IV, and Part 27 aircraft, it may be necessary to install a second VHF communications radio. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 2-1...

  • Page 30: Installation Overview

    For installations that may provide direct exposure, the limits specified by FCC regulations 47 CFR 1.1310 should be referenced by the installer. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 3-1...

  • Page 31: Interference Of Gps

    The location should be such that the unit is not blocked by the glare shield on top, or by the throttles, control yoke, etc., on the bottom. If aircraft has a throw-over yoke, be sure the yoke does not interfere with the unit. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 3-2...

  • Page 32: Cabling And Wiring Considerations

    After reconfiguring the avionics in the cockpit panel, if the unit is mounted less than twelve inches from the compass, recalibrate the compass and make the necessary changes for noting correction data. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 3-3...

  • Page 33: Installation Procedures

    4.6 Coaxial Cable Installation ..........................4-6 4.7 Equipment Mounting............................4-6 4.7.1 Installation..............................4-6 4.8 Antenna Installation and Connections ......................4-8 4.8.1 COM Antenna............................4-8 4.8.2 NAV Antenna (GNC 215) ..........................4-8 4.9 Electrical Installation Procedure ........................4-9 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-1...

  • Page 34: Unit And Accessories

    115-03651-00 [2] Mounting rack 115-04497-00 Product information kit K00-01298-00 [1] Included in non-helicopter standard kits. [2] Included in helicopter standard kits. Table 4-3 Replaceable Parts Item Knob replacement kit K00-01439-00 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-2...

  • Page 35: Miscellaneous Options

    GPS 1.57542 GHz notch filter 330-00067-00 Connector, TNC, straight, crimp 031-4452 [1] [1] This part is not available from Garmin. Vendor Contact Information (provided for convenience only): Amphenol RF, Four Old Newtown Road, Danbury, CT 06810 Phone: (800) 627-7100 Reference Documents...

  • Page 36: Installation Materials Required But Not Supplied

    • Coaxial cable (RG-400, RG-142B or equivalent. Refer to section 4.8 for additional information) • Aircraft grade category 5 Ethernet cable (required only if HSDB interface is used) • Shield terminator • Silicone fusion tape 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-4...

  • Page 37: Special Tools Required

    Table 4-10 Socket Contact P/Ns Wire Gauge 22-28 AWG Garmin P/N 336-00021-00 Military P/N M39029/58-360 [1] [1] Non-Garmin part numbers shown are not maintained by Garmin and are subject to change without notice. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-5...

  • Page 38: Coaxial Cable Installation

    4. Slide the backplate down (viewing from cockpit) until it sits into place. 5. Hold the backplate to prevent rotation and secure the backplate by tightening the four #4-40 screws. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-6...

  • Page 39: Unit Replacement

    2. Turn hex drive tool counterclockwise until the hex drive tool stops. 3. Pull the unit from the rack. Unit Replacement Whenever the unit is reinstalled, verify the unit powers up successfully. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-7...

  • Page 40: Antenna Installation And Connections

    • Glideslope frequencies between 328.6 MHz and 335.4 MHz Follow the antenna manufacturer's installation instructions for mounting antennas. RG-142B, RG-400, or equivalent 50 Ω coax is recommended for the NAV antenna(s). 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-8...

  • Page 41: Electrical Installation Procedure

    Strain relief (P1) 115-00499-03 Cover (P1) 115-00500-03 Screw,4-40x.187, FLHP100,SS/P, w/nylon 211-63234-06 Connector, D-sub, HD, 62-pin (P1) 330-00366-62 Multiple conductor shielded cable As Required Shield terminator As Required [3] [4] 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-9...
  • Page 42 [3] Not supplied - must be purchased separately. [4] Solder sleeve with pre-installed shield drain wire may be used instead of items 9 and 10. [5] Not a Garmin part number. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-10...

  • Page 43: Figure 4-1 Shielded Cable Preparation

    NO LONGER THAN 3" PREFERRED METHOD 2.5" MAX .31" MAX. OF EXPOSED SHIELD 0.17" SHIELD DRAINS AS SHORT AS PRACTICAL NO LONGER THAN 3" ALTERNATE METHOD Figure 4-1 Shielded Cable Preparation 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-11...
  • Page 44 11. Insert the pin into the connector (7) in accordance with wiring diagrams in section 11. 12. Verify that the pin is properly engaged into the connector by gently tugging on the wire. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-12...

  • Page 45: Figure 4-2 Preferred Method Of Shield Termination On Backshell Assembly

    Installation Procedures .31” MAX. EXPOSED SHIELD Figure 4-2 Preferred Method of Shield Termination on Backshell Assembly 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-13...
  • Page 46 7. Insert the screw (13) into the tapped holes on the backshell. 8. Insert the assembled connector into the backplate. 9. Secure the connector (7) into the backplate with screws (2). 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-14...

  • Page 47: Figure 4-3 Connector And Backshell Assembly

    Installation Procedures 6 x2 3 x3 Figure 4-3 Connector and Backshell Assembly 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 4-15...

  • Page 48: Figure 4-4 Backshell Assembly (Potted Configuration Module)

    Installation Procedures Configuration Module Assembly with Potted PCB (GTR 205/GNC 215) 1. Strip at least 0.17 inches of insulation from each wire prior to crimping. It is the responsibility of the installer to determine the proper length of insulation to be removed.

  • Page 49: Connector Pinout Information

    5.2.2 Lighting Bus..............................5-8 5.2.3 Antennas ..............................5-8 5.2.4 Serial Data – RS-232 ..........................5-9 5.2.5 COM Audio ............................5-10 5.2.6 Speaker Output (GTR 205) ........................5-10 5.2.7 COM Discrete Inputs ..........................5-11 5.2.8 NAV Audio Out (GNC 215)........................5-11 5.2.9 Configurable Discrete Inputs ........................5-12 5.2.10 VOR/ILS Indicator (GNC 215) .........................5-13 5.2.11 ARINC 429 NAV Outputs (GNC 215) .....................5-15...

  • Page 50: Pin Function List

    SERIAL DME DATA VOR/LOC +LEFT GLIDESLOPE +UP VOR/LOC +TO VOR/LOC +FLAG GLIDESLOPE +FLAG VOR OBS STATOR F VOR OBS STATOR D VOR OBS ROTOR C NAV AUDIO OUT HI 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-2...
  • Page 51 MIC 2 AUDIO IN LO MIC 1 AUDIO IN LO AIRCRAFT GROUND AIRCRAFT POWER CONFIG MODULE POWER CAN BUS LO CAN BUS HI RS-232 IN ARINC 429 OUT B ARINC 429 OUT A 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-3...
  • Page 52 An asterisk (*) following a signal name denotes that the signal is an Active-Low, requiring a ground to activate. If there is no asterisk, the signal is an Active-High. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-4...

  • Page 53: Table 5-2 Gtr 205 Pins

    HEADSET 1 AUDIO OUT RIGHT AUX 3 AUDIO IN HI AUX 2 AUDIO IN HI AUX 1 AUDIO IN HI DISC 5* SPEAKER AUDIO OUT HI COM AUDIO OUT HI LIGHTING BUS HI 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-5...
  • Page 54 AIRCRAFT GND AIRCRAFT POWER CONFIG MODULE POWER CAN BUS LO CAN BUS HI RS-232 IN CAN BUS TERM B CAN BUS TERM A RESERVED HEADSET 2 AUDIO OUT LEFT 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-6...
  • Page 55 An asterisk (*) following a signal name denotes that the signal is an Active-Low, requiring a ground to activate. If there is no asterisk, the signal is an Active-High. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-7...

  • Page 56: Functional Descriptions

    Pin Name LIGHTING BUS HI LIGHTING BUS LO 5.2.3 Antennas Antennas use BNC coaxial connectors on the connector backplate. Table 5-5 Antenna Pins Pin Name COM ANTENNA NAV ANTENNA 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-8...

  • Page 57: Table 5-6 Rs-232 Pins

    • NAV audio mode • NAV volume level • COM volume level • NAV receiver status (active/standby frequency) • COM transceiver status (active/standby frequency) • Software version • GTR/GNC status 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-9...

  • Page 58: Table 5-9 Speaker Output

    5.2.6 Speaker Output (GTR 205) The speaker output is 12 W into a 4 Ω load. Table 5-9 Speaker Output Pin Name SPEAKER AUDIO OUT HI SPEAKER AUDIO OUT LO 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-10...

  • Page 59: Table 5-10 Com Discrete Inputs

    NAV AUDIO OUT HI supplies 65 mW into a 500 Ω load. It is a balanced output and the NAV AUDIO OUT LO output must be connected. Table 5-11 NAV Audio Out Pins Pin Name NAV AUDIO OUT HI NAV AUDIO OUT LO 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-11...

  • Page 60: Table 5-12 Configurable Discrete Input Pins

    DISC 2* DISC 3* DISC 4* DISC 5* (GTR 205) An asterisk (*) following a signal name denotes that the signal is an Active-Low, requiring a ground to activate. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-12...

  • Page 61: Table 5-13 Superflag Pins (Gnc 215)

    +225 ± 75 mVDC. When indicating FROM, output is -225 ± 75 mVDC. When invalid information is present (Flag IN VIEW) the TO/FROM output is 0 ± 10 mVDC Table 5-15 TO/FROM Pins (GNC 215) Pin Name VOR/LOC +TO VOR/LOC +FROM 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-13...

  • Page 62: Table 5-16 Flag Pins (Gnc 215)

    The driver output voltage is not more than 1.0 V when sinking 20 mA. The maximum off state leakage current with respect to GND is less than 10 mA Table 5-19 NAV ILS Energize Pin (GNC 215) Pin Name ILS ENERGIZE* 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-14...

  • Page 63: Table 5-20 Arinc 429 Nav Output Pins (Gnc 215)

    DME COMMON must be pulled low to indicate to the GTR/GNC that it is the device channeling the DME. Pins 6, 27, and 49 are configured for Serial DME tuning. Table 5-22 Serial DME Pin Name SERIAL DME DATA SERIAL DME CLOCK SERIAL DME COMMON SERIAL DME CH REQ 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 5-15...

  • Page 64: Table 5-23 Aux Pins

    CAN BUS LO CAN TERM A NOTE: JUMPER (BETWEEN PINS 47 AND 48) REQUIRED CAN TERM B WHEN GTR 205 IS LOCATED AT END OF CAN BUS. Table 5-24 CAN Bus Pins Pin Name CAN BUS LO CAN BUS HI...

  • Page 65: Table 5-25 Gtr/Gnc Ethernet (Hsdb) Pins

    HEADSET 1 AUDIO OUT LEFT 5.2.18 Discrete Outputs (GTR 205) The TX INTERLOCK OUT* will be pulled low when the GTR 205 is transmitting. EXTERNAL COM KEY OUT* activates when the MIC key is triggered. Table 5-27 Discrete Output Pins...

  • Page 66: System Configuration

    6.6.6 Serial Interface Checks..........................6-35 6.7 Flight Checks ..............................6-36 6.7.1 COM Flight Check ...........................6-36 6.7.2 VOR Flight Check (GNC 215) ........................6-36 6.7.3 ILS Flight Check (GNC 215)........................6-36 6.8 Software Loading............................6-37 6.9 Screenshots ..............................6-38 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-1...

  • Page 67: Figure 6-1 Gtr 205/Gnc 215 System Configuration Map

    HSDB Test/CAL Power Stats Enablement Intercom CAN Bus Temps Lighting Discrete In OBS RSLVR Clear/Delete COM Options NAV Indicator COM Levels Figure 6-1 GTR 205/GNC 215 System Configuration Map 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-2...

  • Page 68: System Configuration Overview

    Three turns is the minimum for proper installation. If fewer than three turns are possible, the mounting rack should be moved aft (toward the pilot) such that the aircraft panel does not obstruct the unit from properly engaging in the rack. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-3...

  • Page 69: Configuration Mode Operations

    2. Press and hold the right inner knob. 3. Apply power to the unit by turning the COM volume knob. 4. When “Garmin” appears on the screen release knob. The first page displayed is the Configuration Mode Home page. • SYS Setup •...

  • Page 70: Sys Setup

    • System ID • Software version • Software part number • Description • Bluetooth version (GTR 205) • Bluetooth part number (GTR 205) • Software key version • Software key part number • Database key version • Database key part number •...

  • Page 71: Figure 6-5 Tail Number Page

    Push the inner knob to enable or disable the feature. The feature remains unlocked as long as a configuration module is attached. Figure 6-6 Enablement Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-6...

  • Page 72: Unit Setup

    Unit ID sets the unit as GTR/GNC 1 or GTR/GNC 2. Table 6-1 Unit ID Selections Selection Setting Description GTR/GNC 1 (Default) COM or NAV/COM #1 Unit ID GTR/GNC 2 COM or NAV/COM #2 Figure 6-7 Unit ID Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-7...

  • Page 73: Figure 6-8 Database Page

    Table 6-2 Database Selections Selection Setting Description Internal The navigation database is installed locally. Database The navigation database is installed on an External interfaced device. Figure 6-8 Database Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-8...

  • Page 74: Figure 6-9 Ics/Audio Page

    Adjusts the volume output of the speaker. Speaker Volume 0% to 100% Default: 50% Enable Bluetooth is enabled if a green bar displays. Bluetooth Disable Bluetooth is disabled. Figure 6-9 ICS/Audio Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-9...

  • Page 75: Figure 6-10 Aux Audio Input Configuration Page

    0% to 100% Unswitched Default: 50% Stereo Left 0% to 100% AUX Squelch Default: 25% [1] Customize to desired four character label. Figure 6-10 AUX Audio Input Configuration Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-10...

  • Page 76: Figure 6-11 Intercom Page

    Intercom features are controlled by another unit. Figure 6-11 Intercom Page Lighting The Lighting tab accesses the page to set the lighting source and configure the lighting bus and photocell. Figure 6-12 Unit Lighting Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-11...

  • Page 77: Figure 6-13 Source/Level Configuration Page

    Photocell Photocell on unit bezel controls backlight level. Source Lighting Bus Lighting bus controls backlight. Min Level 0% - 100% Minimum backlight brightness setting. Figure 6-13 Source/Level Configuration Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-12...

  • Page 78: Figure 6-14 Photocell Configuration Page

    Transition (Default is 25) to control the unit display backlight. The photocell transition is a percentage of the maximum lighting bus input level. Figure 6-14 Photocell Configuration Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-13...

  • Page 79: Figure 6-15 Lighting Bus Configuration Page

    Reset to Default Selections Selection Description Reset Resets all lighting settings to default values. Cancel Exits the prompt and keeps the current lighting settings. Figure 6-16 Reset to Defaults Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-14...

  • Page 80: Figure 6-17 Com Options Page

    COM Sidetone Source The COM sidetone audio the pilot hears is the audio signal from Internal the headset microphone before it is filtered for transmission. Figure 6-17 COM Options Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-15...

  • Page 81: Table 6-11 Com Rx Auto Squelch Settings

    Table 6-11 COM RX Auto Squelch Settings RX Squelch Open COM RX Squelch Approximation Setting (%) [1] (dBm) -107 -103.5 50 (Default) -100 -96.5 [1] The COM RX squelch range (0-100) is a linear response. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-16...

  • Page 82: Table 6-12 Com Carrier Squelch Settings

    Table 6-12 COM Carrier Squelch Settings Carrier Squelch COM Carrier Open Squelch Setting (%) Approximation (dBm) -89.5 43 (Default) 82.5 [1] The COM Carrier range (0-100) is a linear response. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-17...

  • Page 83: Figure 6-18 Com Levels Page

    COM radio. Resets squelch, sidetone volume, and TX MIC gain settings to default values. Reset to Defaults Exits the prompt and keeps the current settings. Figure 6-18 COM Levels Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-18...

  • Page 84: Figure 6-19 Nav Page

    2.1.1. No Green Bar No filtering occurs. Installed The VOR/LOC composite output is enabled. Composite Indicator No Green Bar The VOR/LOC composite output is disabled. Figure 6-19 NAV Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-19...

  • Page 85: Figure 6-20 Arinc 429 Page

    Generates all 429 outputs with SDI = 0 SDI Selection Generates all output labels with SDI based on selected Use Unit ID Unit ID (SDI = 1 or 2) Figure 6-20 ARINC 429 Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-20...

  • Page 86: Figure 6-21 Rs-232 Page

    GTR/GNC with this selection. Serial data “RS-232 NMEA” input/output as defined in NMEA 1 section 9.2 (for example, with G500/G600, GPSMap, Aera Series, XL Series, or G3X Touch). Figure 6-21 RS-232 Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-21...

  • Page 87: Figure 6-22 Hsdb Settings Page

    System Configuration HSDB HSDB (Ethernet) Settings NOTE Refer to the LRU installation manual for compatibility information. Visit Garmin’s Dealer Resource Center and search by product name. Table 6-18 HSDB Setting Selections Selection Setting Description Present Configure if a GPS navigator such as GPS 175 or GTN Xi GPS Navigator is present on the HSDB (Ethernet) network.

  • Page 88: Figure 6-24 Discrete In Selections

    System Configuration Discrete In NOTE Discrete 5 is available only on the GTR 205. Table 6-19 Discrete In Selections Selection Description Discrete Off No discrete selected. Used to flip-flop between active and standby COM frequencies. It COM Remote Transfer may also be used tune the emergency COM frequency 121.500MHz.

  • Page 89: Figure 6-25 Sd Save Pages

    Saving to an SD card allows information to display on a PC, emailed, or printed. The saved information includes: • Printable summary of all configuration settings (HTML) • Printable maintenance log • Error log Figure 6-25 SD Save Pages 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-24...

  • Page 90: Figure 6-26 Headset Test Page

    6.4.6 Test/CAL (GNC 215) OBS RSLVR Test/CAL > OBS RSLVR > Calibrate OBS > OK calibrates the OBS resolver. Select OK when calibration is complete. Figure 6-27 Test/CAL Pages - OBS RSLVR 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-25...

  • Page 91: Nav Indicator

    Analog Composite ILS • Hidden • To Dev Out • Max Up • Full Up • Center • Full Down Vertical • Max Down Flag • Invalid • Valid 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-26...

  • Page 92: Figure 6-28 Test/Cal Pages- Nav Indicator (Analog) Test

    Mode Setting Selections VOR Radial • Value between 0 and 360 Composite VOR Composite VOR NAV Flag • Invalid • Valid Figure 6-28 Test/CAL Pages- NAV Indicator (Analog) Test 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-27...

  • Page 93: Figure 6-29 Diagnostics Page

    Diagnostics > Digital > View RS-232 Input displays the RS-232 data stream. Select Pause to stop the stream. To clear the information, select Clear Log. Figure 6-30 RS-232 Diagnostic Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-28...

  • Page 94: Figure 6-31 Hsdb (Ethernet) Diagnostic Page

    Diagnostics > Digital > View CAN Bus Status displays the status of the network bus. Figure 6-32 CAN Bus Diagnostic Page Discrete Discrete In Diagnostics > Discrete > View Discrete Inputs displays the status of discrete inputs. Figure 6-33 Discrete In Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-29...

  • Page 95: Figure 6-34 Discrete Out Page

    Diagnostics > Analog In displays the bus setting and input voltage. Figure 6-35 Analog In Pages Power Stats Diagnostics > Power Stats displays the number of Total Power-ups and Operating Hours. Figure 6-36 Power Stats Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-30...

  • Page 96: Figure 6-37 Temps Page

    Selecting Clear Maintenance Log prompts a warning prior to deleting. Select Yes or No to proceed. Figure 6-39 Maintenance Log Warning “Clear Complete” prompt displays when logs are cleared. Figure 6-40 Clear Complete Prompt 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-31...

  • Page 97: Figure 6-41 Configuration Options Warning

    If Yes is selected, a unit restart is necessary. Figure 6-42 Configuration Options Reset Selecting Delete Database prompts a warning. Select Yes or No to proceed. Figure 6-43 Warning of Deleting Databases 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-32...

  • Page 98: Ground Checks (Configuration Mode)

    2. Slowly vary the lighting bus level that is connected to the GTR/GNC. 3. Verify the display brightness tracks the lighting bus setting. 4. Continue to maximum brightness and verify operation. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-33...

  • Page 99: Ground Checks (Normal Mode)

    2. Verify the receiver output produces a clear and understandable audio output. 3. Verify the transmitter functions properly by contacting another station and getting a report of reliable communications. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-34...

  • Page 100: Database Check

    4. Press FIND. 5. Turn the outer knob to NEAREST APT. 6. Verify the wiring between the GPS source and the GTR/GNC if the unit displays “No GPS Position.” 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-35...

  • Page 101: Flight Checks

    3. Verify the Morse code decoder IDs the station (95% probability). 4. Fly the approach. 5. Verify NAV flag, GS flag, and CDI and VDI are operational. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-36...

  • Page 102: Software Loading

    7. Select OK. 8. Power off the unit. 9. Remove the software loader card. 10. Reinsert the database card into the SD card slot. Figure 6-44 Software Upload Page 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-37...

  • Page 103: Screenshots

    3. Push and hold MON. 4. Push and release to top soft key. Soft Key When the screenshot is successful, a camera icon briefly displays in the annunciator bar. Figure 6-45 Screenshots 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 6-38...

  • Page 104: Continued Airworthiness

    Continued Airworthiness Continued Airworthiness Maintenance of the GTR 205 and GNC 215 is “on condition” only. For regulatory periodic functional checks, refer to approved aircraft maintenance manuals or manual supplements for actual aircraft maintenance requirements. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev.

  • Page 105: Environmental Qualification Form

    Environmental Qualification Form Environmental Qualification Form Visit Garmin’s Dealer Resource Center for RTCA/DO-160G EQFs and search by product name. The GTR 205 and GNC 215 have the same EQF, P/N 005-01450-30. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 8-1...

  • Page 106: Data Format

    9.1.3 Aviation Output Sentence Type 1 ......................9-2 9.1.4 Aviation Output Sentence Type 2 ......................9-4 9.2 RS-232 NMEA Data Format..........................9-6 9.2.1 Electrical Interface.............................9-6 9.2.2 Message Formats ............................9-6 9.2.3 Message Output Rate..........................9-7 9.2.4 Message Definitions ..........................9-8 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-1...

  • Page 107: Rs-232 Aviation Format

    Table 9-3 describes the Type 1 output sentence item designator (id) and item data (dddd) fields. If data for these sentences is invalid or unavailable, dashes ("-") are used to fill in all non-blank character positions. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-2...
  • Page 108 Warnings status, only data transmitted are dashes (-). Used to indicate end of Type 1 sentences. l (lower case Distance to destination waypoint in tenths of Lima) nautical miles. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-3...

  • Page 109: Table 9-5 Aviation Output Sentence Type 2 - No Route

    (3 ASCII characters; route sequence number is “01”) sequence number (1 binary byte; last waypoint flag is set; route sequence number is 1) ASCII carriage return character (0D hex) ASCII line feed character (0A hex) 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-4...

  • Page 110: Table 9-6 Type 2 Aviation Output Sentence Format

    (unsigned binary) undefined hhhhhhh hundredths of latitude minutes (unsigned binary) Two's complement binary in 16ths of degrees. Easterly mvar variation is positive. MSB output first. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-5...

  • Page 111: Rs-232 Nmea Data Format

    [1] Encoded hex: each character consists of 4 bits of data placed in the low order nibble +30h. For example, the 8-bit value 5Fh would be encoded as two characters with values of 35h and 3Fh, which map to the ASCII characters “5” and “?”, respectively. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-6...
  • Page 112 MESSAGE RATE Flags 10Hz (high rate) Decoded OBS Setting Radial from Active VOR Decoded Station Identifier NAV Receiver Status 1Hz (low rate) COM Transceiver Status Radial from Standby VOR 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-7...

  • Page 113: Message Definitions

    Undefined Center Automated Surface Observing Station Class B Class C Radio En route En route Flight Advisory Service or Flight Watch Gate Helicopter Information Weather Terminal Pilot controlled lighting 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-8...

  • Page 114: Input Messages

    29 = Request NAV Audio 40 = Request NAV Volume 41 = Request GNC Status “000” Reserved. MESSAGE EXAMPLE $PGRMV2429000<chksm><CR><LF> Request the GNC to send the current NAV Audio configuration. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-9...

  • Page 115: Table 9-11 Message Format (Gtr/Gnc Com Requests)

    14 = Request Unit Display Information. Message sub-id; set to (ASCII) 1 for Request COM Audio Volume, 0 otherwise. “00” Reserved. MESSAGE EXAMPLE $PGRMC0613000<chksm><CR><LF> Request the GTR/GNC to send the current COM status. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-10...

  • Page 116: Table 9-12 Active Com Frequency And Transceiver Message Format

    119 for the MHz portion. The kHz portion converts ASCII “4” to 34h, -30h yields 4h, x 25 kHz steps = 100 kHz, with no 8.33 kHz channel offsets. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-11...

  • Page 117: Table 9-13 Standby Com Frequency And Transceiver Message Format

    123 for the MHz portion. The kHz portion converts ASCII “F” to 46h, -30h yields 16h, x25 kHz steps = 550 kHz, add 3 8.33 channels = 565 kHz. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-12...

  • Page 118: Table 9-14 Com Level And Audio Control Message Format

    Message class. This is a GTR/GNC COM message. “03” Message ident. Squelch test: (ASCII) 0 = automatic 1 = manual override (displays “SQ”) MESSAGE EXAMPLE $PGRMC030<chksm><CR><LF> Set the squelch to automatic operation. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-13...

  • Page 119: Table 9-16 Remote Airport Identifier Name Message Format

    3 = third 8.33 kHz channel offset (.015) MESSAGE EXAMPLE $PGRMC054<JP0<chksm><CR><LF> Append 122800 to the end of the airport frequency list at index 4 with a frequency type of UNICOM. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-14...

  • Page 120: Table 9-18 Active Com Frequency With Identifier Message Format

    $PGRMC15F0N0ABC I<chksm><CR><LF> Set the active COM frequency to 118.000 MHz, the transceiver to normal (not monitor) mode, and the displayed text to ABC<sp> along with the Information frequency type. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-15...

  • Page 121: Table 9-19 Standby Com Frequency With Identifier Message Format

    $PGRMC16F0N0ABC I<chksm><CR><LF> Set the standby COM frequency to 118.000 MHz, the transceiver to normal (not monitor) mode, and the displayed text to ABC<sp> along with the Information frequency type. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-16...

  • Page 122: Table 9-20 Set Com Frequency Lookup Table Entry Message Format

    Frequency index (“000” to “299”) Number of sequential frequencies to delete (minimum “001” to “300”) MESSAGE EXAMPLE $PGRMC18000010<chksm><CR><LF> Delete ten entries from the COM frequency lookup table starting at index 0. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-17...

  • Page 123: Table 9-22 Com Keypad Input Message Format

    45h, +30h = 75h, converted to decimal equals 117 for the MHz portion of the command. The kHz portion converts ASCII ‘4’ to 34h, -30h = 4h, x 25 kHz steps = 100 kHz. Set the receiver function to normal (monitor mode off). 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-18...

  • Page 124: Table 9-24 Remote Vor Input Message Format

    Table 9-25 Remote VOR List Trailer Message Format CHARACTER DESCRIPTION “V” Message class. This is a GNC NAV message. “21” Message identifier. MESSAGE EXAMPLE $PMRRV21<chksm><CR><LF> Indicates the end of a remote VOR list. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-19...

  • Page 125: Table 9-26 Remote Localizer List Header Message Format

    30h to 56h and for frequencies between 108 and 111.950 MHz the 100 kHz value is odd (reserved for localizer frequencies). MESSAGE EXAMPLE $PMRRV2331<Sp><Sp>><<chksm><CR><LF> Identifier is “31 “, indicating a runway, and the localizer frequency is 110.300 MHz. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-20...

  • Page 126: Table 9-28 Standby Nav Frequency Message Format

    ASCII “?” corresponds with 3Fh, +30h = 6Fh, converted to decimal equals 111 for the MHz portion. The kHz portion converts ASCII “P” to 50h, -30h yields 20h, x 25 kHz steps = 800 kHz. The receiver function to remain unchanged. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-21...

  • Page 127: Table 9-29 Nav Audio Mode Message Format

    Message class. This is a GNC NAV message. “34” Message identifier. OBS Value in degrees, ranging from “000” to “359.” MESSAGE EXAMPLE $PGRMV34310<chksm><CR><LF> Set the OBS value to 310 degrees. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-22...

  • Page 128: Table 9-31 Nav Volume Level Message Format

    Message class. This is a GNC NAV message. “44” Message identifier. Key press: “F” = Flip-Flop key. “M” = Monitor key MESSAGE EXAMPLE $PGRMV44F<chksm><CR><LF> Flip-flops the NAV active and standby frequencies. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-23...

  • Page 129: Output Messages

    3 = third 8.33 kHz channel offset (.015) MESSAGE EXAMPLE $PGRMC01G4LFR08303<chksm><CR><LF> Active frequency is 119.100MHz, the standby frequency is 124.565MHz, unit is receiving, squelch is automatic, and the unit is in 8.33 kHz mode. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-24...

  • Page 130: Table 9-34 Com Volume Level Message Format

    Table 9-35 COM Software Version Message Format CHARACTER DESCRIPTION “C” Message class. This is a GTR/GNC COM message. “03” Message identifier. vvvv Software version in ASCII. MESSAGE EXAMPLE $PGRMC030100<chksm><CR><LF> COM Software version is 01.00. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-25...

  • Page 131: Table 9-36 Gtr/Gnc Com Message Format

    Display application software version, including ASCII decimal, with no leading (v)v.vv zero for software versions less than 10.00. MESSAGE EXAMPLE $PGRMC14GTR 205,006-B3896-00,2.22<chksm><CR><LF> A GTR 205 with software product number 006-B3896-00, software version 2.22. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-26...

  • Page 132: Table 9-38 Gnc Status Message Format

    Glideslope Status; (ASCII) 0 = OK, 1 = Glideslope course guidance not available. NAV remote transfer stuck; (ASCII) 0 = OK, 1 = stuck. MESSAGE EXAMPLE $PGRMV4100010<chksm><CR><LF> GNC is running and ready to accept serial input, and glideslope guidance is unavailable. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-27...

  • Page 133: Table 9-39 Cdi, Vdi, And Related Flags Message Format

    This situation will occur whenever the receiver determines that it is within the “cone of confusion” directly over a VOR, or when no signal is being received. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-28...

  • Page 134: Table 9-40 Decoded Obs Setting Message Format

    Bearing to a resolution of 1/10th of a degree. ddd = three digit bearing in dddf degrees, ranging from “000” to “359.” f = 1/10th of a degree. MESSAGE EXAMPLE $PGRMV23V1654<chksm><CR><LF> A valid bearing of 165.4 degrees FROM the active VOR station. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-29...

  • Page 135: Table 9-42 Radial From Standby Vor Message Format

    Identifiers are restricted to using ASCII character 0-9 and A-Z. MESSAGE EXAMPLE $PGRMV25VISLE<Sp><chksm><CR><LF> The decoded station identifier is valid and is “ISLE ” 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-30...

  • Page 136: Table 9-44 Gnc Nav Error Message Format

    “0” = input message checksum error. “1” = unknown message. “2” = error or mismatch in message data. MESSAGE EXAMPLE $PGRMC050<chksm><CR><LF> Received a COM message with an invalid checksum. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-31...

  • Page 137: Table 9-46 Nav Receiver Status Message Format

    Message class. This is a GNC NAV message. “29” Message identifier. NAV audio mode. “I” = IDENT, “V” = VOICE MESSAGE EXAMPLE $PGRMV29I<chksm><CR><LF> The current NAV Audio mode is “IDENT.” 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-32...

  • Page 138: Table 9-48 Nav Volume Level Message Format

    Remote VOR Input Remote VOR List Trailer Remote Localizer List Header Remote Localizer List Entry Request NAV Data Various Messages Set Active VOR/LOC Frequency and Receiver NAV Receiver Status Function 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-33...

  • Page 139: Table 9-50 Output Message Summary

    When Error Detected NAV Receiver Status Status Change / Low NAV Audio Mode Status Change NAV Volume Level Upon Request / Status Change GNC NAV Status Upon Request / Status Change 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 9-34...

  • Page 140: 10 Mechanical Drawings

    Figure 10-1 GTR/GNC Dimensions and Center of Gravity ..................10-2 Figure 10-2 Rear Connector Layout Detail......................10-3 Figure 10-3 Panel Cutout Detail..........................10-4 Figure 10-4 Mounting Rack Installation ........................10-5 Figure 10-5 Mounting Rack ..........................10-6 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 10-1...

  • Page 141: Figure 10-1 Gtr/Gnc Dimensions And Center Of Gravity

    DIMENSIONS: INCHES [mm] PRODUCT "A" "B" "C" GTR 205 3.25 [82.6] 4.47 [113.5] 0.50 [12.7] GNC 215 3.13 [79.4] 4.59 [116.7] 0.63 [15.9] Figure 10-1 GTR/GNC Dimensions and Center of Gravity 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 10-2...

  • Page 142: Figure 10-2 Rear Connector Layout Detail

    Mechanical Drawings (62 PIN) Figure 10-2 Rear Connector Layout Detail 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 10-3...

  • Page 143: Figure 10-3 Panel Cutout Detail

    2. IF THE FRONT LIP OF THE MOUNTING RACK IS BEHIND THE SURFACE OF THE AIRCRAFT INSTRUMENT PANEL, THE UNIT CONNECTORS MAY NOT FULLY ENGAGE. 3. TOLERANCE: +0.03" Figure 10-3 Panel Cutout Detail 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 10-4...

  • Page 144: Figure 10-4 Mounting Rack Installation

    PROVIDED WITH CONNECTOR KIT 115-03651-00 MOUNTING RACK TORQUE TO 8 1 IN-LB EXPLODED VIEW OF BACKPLATE ASSEMBLY HELICOPTER INSTALLATIONS: DO NOT REMOVE BLUE O-RING Figure 10-4 Mounting Rack Installation 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 10-5...

  • Page 145: Figure 10-5 Mounting Rack

    DURING INSTALLATION OF THE MOUNTING RACK, ENSURE EDGE OF THE TAB (TOP AND BOTTOM FLANGE OF THE RACK) IS FLUSH WITH THE FACE OF THE INSTRUMENT PANEL Figure 10-5 Mounting Rack 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 10-6...
  • Page 146 Interconnect Diagrams 11 Interconnect Diagrams Figure 11-1 GTR 205/GNC 215 Typical Installation ....................11-3 Figure 11-2 GNC 215 MIC Headsets Interconnect ....................11-5 Figure 11-3 GTR 205 MIC Headsets Interconnect ....................11-6 Figure 11-4 GNC 215 VOR/ILS Indicator Interconnect ...................11-7 Figure 11-5 Power Lighting Configuration Interconnect ..................11-8 Figure 11-6 GTR 205/GNC 215 GPS Interconnect ....................11-9...
  • Page 147 • ~ indicates any available similar functioning port or pin may be used. Ports or pins without ~ must be connected as shown • * indicates an active low pin. • † indicates an active high pin. 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-2...

  • Page 148: Figure 11-1 Gtr 205/Gnc 215 Typical Installation

    AIRCRAFT POWER AIRCRAFT GND AIRCRAFT AIRCRAFT GND GROUND AIRCRAFT GND COM ANTENNA COM ANTENNA NAV ANTENNA NAV ANTENNA Figure 11-1 GTR 205/GNC 215 Typical Installation Sheet 1 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-3...
  • Page 149 COMPLETE PINOUT AND INTERCONNECT INFORMATION. THE NAV AUDIO OUTPUT APPLIES TO GNC 215 ONLY. VLOC REMOTE TRANSFER APPLIES TO GNC 215 ONLY. Figure 11-1 GTR 205/GNC 215 Typical Installation Sheet 2 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev.

  • Page 150: Figure 11-2 Gnc 215 Mic Headsets Interconnect

    ALL HEADSET AND MICROPHONE PLUGS MUST BE ELECTRICALLY ISOLATED FROM GROUND. THIS MAY REQUIRE THE USE OF INSULATING WASHERS WHEN MOUNTING THE PHONE PLUGS. Figure 11-2 GNC 215 MIC Headsets Interconnect 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-5...

  • Page 151: Figure 11-3 Gtr 205 Mic Headsets Interconnect

    IF CONFIGURED FOR STEREO IN, AUX 3 WILL ACT AS STEREO LEFT, AND AUX 4 WILL ACT AS STEREO RIGHT. DO NOT CONNECT THE SPEAKER GROUND RETURN TO THE AIRCRAFT CHASSIS. THE GROUND RETURN MUST GO TO THE GTR. Figure 11-3 GTR 205 MIC Headsets Interconnect 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev.

  • Page 152: Interconnect Diagrams

    GPS ANN NAV ANN NOTES REFER TO MANUFACTURER'S DOCUMENTATION FOR COMPLETE PINOUT AND INTERCONNECT INFORMATION. PINOUTS OF OTHER UNITS SHOWN FOR REFERENCE ONLY. Figure 11-4 GNC 215 VOR/ILS Indicator Interconnect 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-7...

  • Page 153: Figure 11-5 Power Lighting Configuration Interconnect

    OPTIONAL CONNECTION. LIGHTING CAN BE CONTROLLED BY THE INTEGRATED PHOTOCELL OR A SINGLE LIGHTING BUS. THE SUPPLIED CONFIGURATION MODULE HARNESS USES 28 AWG WIRE. USE THE CONTACTS SUPPLIED WITH THE CONFIGURATION MODULE. Figure 11-5 Power Lighting Configuration Interconnect 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-8...

  • Page 154: Figure 11-6 Gtr 205/Gnc 215 Gps Interconnect

    CONFIGURE RS-232 OUTPUT TO “MAPCOM” FORMAT. RS-232 OUTPUT PORT 1 OR PORT 5 MAY BE USED. CONFIGURE RS-232 OUTPUT TO “AVIATION OUTPUT 1" FORMAT. ANY AVAILABLE RS-232 OUTPUT PORT MAY BE USED. Figure 11-6 GTR 205/GNC 215 GPS Interconnect Sheet 1 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev.
  • Page 155 HSDB PORT IS UNAVAILABLE, USE RS-232. FOR DUAL GTR/GNC INSTALLATIONS, CONNECT RS-232 IN PARALLEL FROM GPS NAVIGATOR 1 TO BOTH GTR/GNC UNITS. ONLY RS232 PORT 1 AND 2 OUT CAN BE CONFIGURED FOR AVIATION FORMAT. Figure 11-6 GTR 205/GNC 215 GPS Interconnect Sheet 2 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev.
  • Page 156 NAV AUDIO OUT LO NAV 1/(NAV 2) AUDIO LO V/(R) 40/(38) V/(R) H/(C) GND LUG 18/(20) 18/(20) 25/(34) 18/(20) GND LUG Figure 11-7 Audio Panel Interconnect Sheet 1 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-11...

  • Page 157: Figure 11-7 Audio Panel Interconnect

    SPLICE COM AUDIO LO AND MIC AUDIO IN LO TOGETHER INTO THE SAME PIN ON AUDIO PANEL. THE NAV AUDIO OUTPUT IS ONLY APPLICABLE TO THE GNC MODEL. Figure 11-7 Audio Panel Interconnect Sheet 2 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-12...

  • Page 158: Figure 11-8 Gtr 205/Gnc 215 Efis Interconnect

    ON EFIS DISPLAY). REFER TO INSTALLATION DOCUMENTATION FOR COMPLETE PINOUT AND INTERCONNECT INFORMATION FOR INTERFACING EQUIPMENT. CONFIGURE GTR/GNC SERIAL PORT FOR “NMEA 1.” Figure 11-8 GTR 205/GNC 215 EFIS Interconnect Sheet 1 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev.
  • Page 159 RS-232 PORT 1 FOR GDU 4X0 SHOWN. ANY AVAILABLE PORT MAY BE USED. THE #1 NAV/COM MUST BE ON A LOWER NUMBERED RS-232 PORT ON THE GDU. CONFIGURE RS-232 PORT FOR “GARMIN VHF NAV/COM.” ARINC 429 INPUT PORT 2 FOR GI 275 SHOWN. ANY AVAILABLE ARINC 429 INPUT PORT MAY BE USED.

  • Page 160: Figure 11-9 Switches Interconnect

    COM REMOTE TUNE UP AND COM REMOTE TUNE DOWN MAY BE USED TO SCROLL THROUGH A LIST OF PRESET COM FREQUENCIES. THIS FUNCTION APPLIES TO GNC 215 ONLY. Figure 11-9 Switches Interconnect 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-15...

  • Page 161: Figure 11-10 Gnc 215 - Serial Dme Interconnect

    NAV 2 NAV SELECTION SW SERIAL DME CLOCK SERIAL DME DATA SERIAL DME CH REQ DME COMMON Figure 11-10 GNC 215 - Serial DME Interconnect Sheet 1 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-16...
  • Page 162 THE NAV SELECTION SWITCH IS ONLY REQUIRED IF TWO GNCs ARE INSTALLED. FOR SINGLE GNC INSTALLATIONS, WIRE AS SHOWN FOR GNC #1. LABEL AS SHOWN. Figure 11-10 GNC 215 - Serial DME Interconnect Sheet 2 of 2 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-17...

  • Page 163: Figure 11-11 Gtr 205/Gnc 215 Antenna Interconnect

    DUAL GTR/GNC INSTALLATION COM Antenna GTR 205/GNC 215 #1 VOR/LOC/GS Antenna Splitter GTR 205/GNC 215 #2 COM Antenna Figure 11-11 GTR 205/GNC 215 Antenna Interconnect Sheet 1 of 4 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-18...
  • Page 164 COM Antenna GNC 215 #1 G/S Antenna VOR/LOC Antenna Splitter Diplexer VO R GNC 215 #2 COM Antenna Figure 11-11 GTR 205/GNC 215 Antenna Interconnect Sheet 2 of 4 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-19...
  • Page 165 GNC 215 Diplexer Splitter VOR/LOC Antenna VHF NAV RADIO Splitter WITH SEPARATE G/S AND VOR/LOC ANTENNA PORTS VOR/LOC Figure 11-11 GTR 205/GNC 215 Antenna Interconnect Sheet 3 of 4 190-02766-01 GTR 205/GNC 215 TSO Installation Manual Rev. 6 Page 11-20...
  • Page 166 REFER TO SECTION 3 AND SECTION 4 FOR ANTENNA CABLE SPECIFICATIONS. NAV ANTENNA PORT IS ONLY APPLICABLE TO THE GNC 215. GARMIN P/N 013-00112-00 (MINI-CIRCUITS SPLITTER P/N ZFSC-2-1B+) OR EQUIVALENT SHOULD BE USED. COMANT DIPLEXER P/N CI 507 MAY BE USED.

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Gnc 215

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