redundant Fly-by-wire system with automatic emergency descent mode (EDM) AUDIO Triple Digital Audio control panels VHF COM (Very high Freq. Com) Triple Honeywell VHF Receivers 8,33 kHz spacing VDL mode A and mode 2 capabilities HF COM (High Freq. Com) Dual With SELCAL SATCOM (Satellite com) Single Honeywell MCS-7210 INMA