ElectricalInput voltage10 VDC to 40 VDC, reverse polarity protectedInput current (GPS navigation input)500 mA typical, 750 mA max at 13.75 VDC250 mA typical, 375 mA max at 27.5 VDCInput current (comm input - GX60/65 only)270 mA typical, 2A max at 13.75 VDC, receive130 mA typical, 900 mA max at 27.5 VDC, receive2.1A typical, 3.2A max at 13.75, transmit1.0A typical, 1.4A max at 27.5 VDC, transmitInput power (GPS navigation input)7 watts typicalInput power (comm input - GX60/65 only)3.7 watts typical, receive28 watts typical, transmitGX50 and GX60/65 Avionics OutputsCDI L/R deviation ±150 mv full scaleTO/OFF/FROM flag ±250 mv, TO/FROM indicationNav valid flag +300 mv for valid indicationNav superflag 400 ma sourceVDI up/down ±150 mvVDI valid flag +300 mvVDI superflag 400 ma sourceAnnunciatorsMSG (message)PTK (parallel track)OBS/HLD (waypoint sequencing hold) GX50/60 onlyAPPRCH (approach enabled)GX50/60 onlyACTIVE (approach active) GX50/60 onlyGX55 Avionics OutputsCDI L/R deviation ±150 mv full scaleTO/OFF/FROM flag ±250 mv, TO/FROM indicationNav valid flag +300 mv for valid indicationAnnunciatorsMSG (message)PTK (parallel track)Avionics InputsSerialFrequency flip/flop (GX60/65 only)Waypoint Sequence (GX50/60 only)1-10Apollo GX Features
