190-00726-00 Rev. J Garmin G900X Pilot’s Guide 11SYSTEM OVERVIEWSYSTEMOVERVIEW FLIGHTINSTRUMENTS EIS AUDIO PANEL& CNS FLIGHTMANAGEMENT HAZARDAVOIDANCE AFCS ADDITIONALFEATURES APPENDICES INDEX1.4 SYSTEM OPERATIONNOTE: Refer to Appendix A for detailed descriptions of all annunciations and alerts. The G900X System alertsthe pilot when backup paths are utilized by the LRUs. The kitplane builder should establish appropriate pilotactions in response to all G900X annunciations in the aircraft-specific Pilot’s Operating Handbook (POH).The displays are connected together via a single Ethernet bus for high-speed communication. As shown inFigure 1-1, each IAU is connected to the on-side display. This section discusses normal and reversionary G900Xdisplay operation, AHRS modes, GPS receiver operation, and G900X System Annunciations.DISPLAY OPERATIONNOTE:In normal operating mode, backlighting can only be adjusted from the PFD(s) (see Section 1.7). Inreversionary mode, it can be adjusted from the remaining display(s).In normal operating mode, the PFD(s) presents graphical flight instrumentation (attitude, heading, airspeed,altitude, vertical speed), replacing the traditional flight instrument cluster (see the Flight Instruments Sectionfor more information). The MFD normally displays a full-color moving map with navigation information (seethe Flight Management Section), while the left portion of the MFD is dedicated to the Engine Indication Systemor to Navigation Information (EIS, see the EIS Section; Navigation Information, see the Flight ManagementSection). Both displays offer control for COM and NAV frequency selection.Figure 1-6 G900X Two Display System Normal OperationFigure 1-7 G900X Three Display System Normal Operation
