Garmin 480 Wiring

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We do not have a 480 here so we can't promise anything, but from looking at the manuals:

Garmin GNS 480 Dynon HS34
Plug PIN Description Plug Pin Description Notes
P5 (78 Pin) 4 ARINC 429 Steering Output Channel 1A Fem D25 23 ARINC 429 RX 1-A GPS HSI Data
P5 (78 Pin) 24 ARINC 429 Steering Output Channel 1B Fem D25 11 ARINC 429 RX 1-B GPS HSI Data
P5 (78 Pin) 5 ARINC 429 Steering Output Channel 2A Fem D25 22 ARINC 429 RX 2-A VOR / ILS HSI Data
P5 (78 Pin) 25 ARINC 429 Steering Output Channel 2B Fem D25 10 ARINC 429 RX 2-B VOR / ILS HSI Data
P5 (78 Pin) 7 ARINC 429 Input Channel 1A Fem D25 25 ARINC 429 TX A (Pri) Optional - Purpose unknown - HS34 knobs control 480?
P5 (78 Pin) 27 ARINC 429 Input Channel 1B Fem D25 13 ARINC 429 TX B (Pri) Optional - Purpose unknown - HS34 knobs control 480?


  • Set up 480 Output 1 to "GAMA 429 no FP"
  • Set up 480 Output 2 to "VOR/ILS"
  • Set up HS34 ARINC input 1 to GPS
  • Set up HS34 ARINC input 2 to NAV