3.1 UNIT AND ACCESSORIES.........................................................................................................................3-1
3.2 DATA BASE OPTIONS................................................................................................................................3-4
4.1 PIN FUNCTION LIST...................................................................................................................................4-1
4.2 POWER, LIGHTING, AND ANTENNAS....................................................................................................4-5
4.4 MAIN INDICATOR......................................................................................................................................4-7
4.6 SERIAL DATA.............................................................................................................................................4-11
4.7 COM/VOR/ILS AUDIO (GNC 420 AND GNS 430 ONLY)........................................................................4-14
Appendix B. STC PERMISSION................................................................................................................................B-1
Appendix C. 400 SERIES RS-232 AVIATION DATA FORMAT.............................................................................C-1
Appendix D. 400 SERIES RS-232 FUEL/AIR DATA INPUT FORMAT..................................................................D-1
Appendix E. 400 SERIES LRU INTERFACE OVERVIEW......................................................................................E-1
Note: Throughout this document references made to GNS 430 and GNC 420 shall equally apply to
the GNS 430A and GNC 420A except where specifically noted.
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