190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page H-110
GTX™ transponder TIS-A In - Receives TIS A-data from a Garmin Mode-S panel-mount transponder.
If the transponder is connected to the ADAHRS 1 LRU (as shown in Section 24.2
), it is not necessary to
connect its output to a GDU RS-232 port.
TIS-A In/NMEA & VHF Out - Receives TIS-A data and transmits out both NMEA data, at 9600 baud,
and VHF frequency tuning information to a Garmin Nav/Comm radio. Note that if a transponder is
connected to the ADAHRS 1 LRU (as shown in Section 24.2
), it is not necessary to select TIS-A In, as the
transponder data is received using the ADAHRS 1 LRU.
Garmin VHF Nav/Comm - Outputs frequency tuning and VOR radial selection data to an SL30 or
GNC® 255 VHF Nav/Comm radio. Receives lateral/vertical NAV deviation signals and radio status data
for on-screen radio display.
Garmin VHF Comm - Outputs frequency tuning data to an SL40, GTR 200, or GTR 225 Comm radio,
and receives radio status data for on-screen radio display.
Integrated Autopilot – For use with Autopilots that use both ARINC 429 and bi-directional RS-232 data
(ARINC 429 output set to Autopilot). Integrated Autopilot is a proprietary serial format that provides
autopilot control softkeys and status annunciations on the G3X PFD. See wiring examples in Section 24.2
and Appendix G.2
.
Note the following when configuring the communication settings:
· Each GNS™ 4XX/5XX receivers, GNS 480, or GTN™ 6XX/7XX touchscreen avionics series
unit must be connected to a MapMX/Aviation RS-232 input on one of the GDU 37X units (in
addition to the ARINC 429 connection(s)). ARINC 429 data input from a GNS 4XX/5XX, GNS
480, or GTN 6XX/7XX series unit will be ignored unless a corresponding MapMX/Aviation RS-
232 input is also configured.
· When connecting two GNS 4XX/5XX, GNS 480, or GTN 6XX/7XX series units to the G3X
system, connect the MapMX/Aviation RS-232 output from NAV 1 to an RS-232 input on PFD1,
and connect the MapMX/Aviation RS-232 output from NAV 2 either to an RS-232 input on the
MFD, or to a higher-numbered RS-232 input on PFD1.
· Highlight the ‘GPS1’, ‘GPS2’, etc. fields on the Main Configuration page to verify which RS-232
and ARINC 429 inputs the G3X system is currently using for NAV 1 and NAV 2.
Vertical Power – A 3rd party LRU that integrates with the G3X to monitor and control the entire electrical
system using the GDU.
CO Detector - Receives data from a third-party carbon monoxide detector. Refer to the G3X Pilot’s Guide
or the G3X Touch™ Avionics Pilot’s Guide for further information.
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