4-35190-01150-02 Rev. J Garmin G500H Pilot’s GuideForewordSec 1SystemSec 2PFDSec 3MFDSec 4HazardAvoidanceSec 5AdditionalFeaturesSec 6Annun.& AlertsSec 7SymbolsSec 8Glossary Appendix AAppendix BIndex4.6.2.6 TIS System StatusThe GDU 620 performs an automatic test of TIS during power-up. IfTIS passes the test, TIS enters Standby Mode on the ground or OperatingMode in the air. If TIS fails the power up test, an annunciation is shownin the center of the Traffic Map Page.Traffic Map PageAnnunciation DescriptionNO DATA* Data is not being received from the transponderDATA FAILED* Data is being received from the transponder, but afailure is detected in the data streamFAILED* The transponder has failedUNAVAILABLE TIS is unavailable or out of range* Contact a service center or Garmin dealer for corrective actionTable 4-11 TIS Failure AnnunciationsThe traffic mode is annunciated in the upper left corner of the Traffic Map Page.When the aircraft is on the ground, TIS automatically enters Standby Mode. Iftraffic is selected for display on another map while Standby Mode is selected,the traffic display enabled icon is crossed out (also the case when TIS hasfailed). Once the aircraft is airborne, TIS switches to Operating Mode and trafficinformation is displayed. The mode can be changed manually using soft keys orthe page menu.Mode Traffic Mode Annunciation(Traffic Map Page)Traffic Display Enabled Icon(Other Maps)TIS Operating OPERATINGTIS StandbySTANDBY(Also shown in white in center ofpage)TIS Failed* FAILTable 4-12 TIS Modes