190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page G-5
G.2 External Interconnect Drawings w/GSU 73
Figure G-2.1 External Interconnect w/GSU 73 Drawing Notes for Appendix G.2
SHIELD TERMINATED TO GROUND
TWISTED SHIELDED 3 CONDUCTOR
SHIELD FLOATS
TWISTED SHIELDED 3 CONDUCTOR
4. SYMBOL DESIGNATIONS
TWISTED SHIELDED PAIR
SHIELD TERMINATED TO GROUND
SHIELD FLOATS
TWISTED SHIELDED PAIR
TWISTED SHIELDED SINGLE CONDUCTOR
SHIELD TERMINATED TO GROUND
SHIELD FLOATS
TWISTED SHIELDED SINGLE CONDUCTOR
1. UNLESS OTHERWISE NOTED, ALL STRANDED WIRE MUST CONFORM TO MIL-W-22759/16 OR EQUIVALENT
2. UNLESS OTHERWISE NOTED, ALL SHIELDED WIRE MUST CONFORM TO MIL-C-27500 OR EQUIVALENT
3. UNLESS OTHERWISE NOTED, ALL WIRES ARE 24 GAUGE MINIMUM.
5. UNLESS OTHERWISE NOTED, ALL SHIELD GROUNDS MUST BE MADE TO THE RESPECTIVE UNIT BACKSHELLS.
ALL OTHER GROUNDS SHOULD BE TERMINATED TO AIRCRAFT GROUND AS CLOSE TO THE RESPECTIVE UNIT AS POSSIBLE.
NOTES:
WIRE SPLICE CONNECTION
COAXIAL CABLE
SHIELD TERMINATED TO GROUND
TWISTED SHIELDED 4 CONDUCTOR
SHIELD FLOATS
TWISTED SHIELDED 4 CONDUCTOR
N/C = NO CONNECTION
S
GARMIN SHIELD BLOCK GROUND
6. RS-232 CHANNEL ASSIGNMENTS ARE SHOWN FOR REFERENCE ONLY. CONNECTIONS CAN BE REASSIGNED TO DIFFERENT CHANNELS
AIRCRAFT GROUND
9. NOTE HAS BEEN REMOVED.
11. OPTIONAL INTERFACE.
8. CONNECTIONS FOR AUTOPILOT SERVOS, AP DISCONNECT AND OTHER AUTOPILOT FUNCTIONALITY NOT SHOWN. CONSULT AUTOPILOT
10. THE GSU 73 PROVIDES AIR DATA AND GPS INFORMATION TO THE GTX SO NO SEPARATE ALTITUDE ENCODER IS REQUIRED.
7. THE VP-X MUST BE CONNECTED TO THE MFD IN A MULTIPLE DISPLAY INSTALLATION.
12. THE GMA 240 IS SHOWN HERE FOR REFERENCE ONLY. OTHER INTERCOM/AUDIO PANEL PRODUCTS MAY BE COMPATIBLE WITH THE
GDU 46X/37X. THE ALERTS GENERATED BY THE GDU CAN BE CONFIGURED TO TRANSMIT ON MONO AND STEREO AUDIO LINES OR
MONO ONLY. SEE THE G3X INSTALLATION MANUAL FOR ADDITIONAL DETAILS ON CONFIGURATION OF THE GDU ALERT OUTPUTS.
OR TO CHANNELS ON AN OPTIONAL SECOND OR THIRD DISPLAY. RS-232 INPUT/OUTPUT LINES SHOULD ONLY BE CONNECTED
TO ONE DEVICE AT A TIME. SEE THE G3X INSTALLATION MANUAL FOR RS-232 INPUT/OUTPUT CONFIGURATION GUIDANCE.
13. INSTALLING THE CROSSFILL CONNECTION WILL ALLOW FLIGHT PLAN SHARING BETWEEN TWO GNS 430(W)/530(W) UNITS (VIA RS-232)
OR TWO GNS 6XX/7XX UNITS (VIA ETHERNET). THE G3X SYSTEM ALWAYS DISPLAYS FLIGHT PLAN INFORMATION FROM THE ACTIVE
THE GTX INPUT SHOULD BE CONFIGURED FOR REMOTE.
VENDOR DOCUMENTATION FOR ADDITIONAL DETAILS.
NAV SOURCE.
14. ARINC 429 OUT 2 CAN BE OPTIONALLY CONNECTED TO A GNS 400/500 SERIES UNIT FOR DISPLAY OF TIS-A. THE G3X SYSTEM
15. RS-232 ADS-B OUT FROM A GNS 400/500 SERIES WAAS UNIT WITH MAIN SOFTWARE VERSION 3.20 OR LATER OR A GTN 600/700
SERIES UNIT IS REQUIRED TO SUPPORT ADS-B TRANSMISSIONS. IF ADS-B TRANSMISSION FROM THE GTX 23 ES IS NOT REQUIRED,
16. THE GTN 6XX/7XX UNITS RECEIVE ALTITUDE ENCODER DATA FROM THE GSU 73 VIA ARINC 429 AND RELAY THAT DATA TO
THE TRANSPONDER. IF TWO GTN 6XX/7XX UNITS ARE INSTALLED, RS-232 CHANNEL 2 TRANSMIT AND RECEIVE ON THE TRANSPONDER
WILL CONFIGURE REMOTE MOUNT GARMIN TRANSPONDERS ARINC 429 OUT 1 FOR LOW SPEED TIS DATA AND ARINC 429 OUT 2
FOR HIGH SPEED TIS DATA BY DEFAULT. GNS 400/500 SERIES UNITS REQUIRE THE DATA TO BE HIGH SPEED. PANEL MOUNT
THIS CONNECTION IS NOT REQUIRED.
COULD BE CONNECTED TO THE SECOND GTN INSTEAD OF THE GDU 46X/37X AND GSU 73 IF DESIRED. NOTE THIS CONFIGURATION
WOULD REQUIRE AT LEAST ONE GTN UNIT TO BE OPERATING IN ORDER FOR THE TRANSPONDER TO RECEIVE PRESSURE ALTITUDE DATA.
TRANSPONDERS MUST BE CONFIGURED MANUALLY.
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