190-01499-02 GTX 3X5 Transponder TSO Installation ManualRev. 9 Page C-4Equipment Compatibility and ConfigurationC.3 Altitude SourcesTable C-3 Altitude SourcesManufacturer ModelInterfacingEquipmentConfigurationGTX 335ConfigurationSettingGTX 345ConfigurationSettingNotesACT Tech A-30 N/A ALT FMT 1 25ft ALT FMT 1 25 ftB&D 90004-003 N/A ADC ADCGarminG950/G1000 GEN PURPOSE(Speed: HIGH) N/A EFIS AIR DATA(Speed: HIGH)Interface is primarily for providing true heading tothe GTX, however this format also providesaltitude. Refer to table C-6. Required if externaltraffic system is installed.GDC 74( ) N/A ADC ADCGDU 620 GENERAL(Speed: HIGH)EFIS AIR DATA(Speed: HIGH)EFIS AIR DATA(Speed: HIGH)GTN 6XX/7XXGTX Mode S+[1]ORGTX w/TIS+ [2]REMOTE FMT 1 [1]ORREMOTE FMT 2 [2]REMOTE FMT 1 [1]ORREMOTE FMT 2 [2]This configuration is primarily for purposes oftransponder remote control, however thisconfiguration also provides altitude data. Refer totable C-9.GAE 12 N/A Garmin AltitudeEncoder: PresentGarmin AltitudeEncoder: PresentHoneywell(Bendix/King)KDC 281 N/A ADC ADCKDC 481 N/A ADC ADCIcarusInstruments 3000 N/A ALT FMT 1 100ft ALT FMT 1 100 ftSandia SAE 5-35N/A ALT FMT 1 25ft ALT FMT 1 25 ft Either RS-232 or Gillham Gray code format can beused to provide altitude data from the Sandia SAE5-35 to the GTX 3X5.N/A Gillham Discretes ON Gillham Discretes ON
