Interface Sub TabThe Interface sub tab controls the input/output format used whenconnecting your unit to external devices. To open the Interface subtab, press MENU twice to open the Main Menu. Select Setup fromthe vertical tab list. Highlight and select the Serial Data Format youwant.Interface Sub TabSerial Data Format—sets the data format to one of the following:• Garmin Data Transfer—the proprietary format used toexchange data with a PC or another Garmin GPSMAP 496.Garmin Data Transfer is disabled when the USB is connectedand the unit automatically switches to USB format. Whenthe USB is disconnected, the USB field changes to TransferMode.• GARMIN DGPS—used to connect the GPSMAP 496 with aGarmin DGPS beacon receiver.• Garmin Remote Sonar—supports the input/output of aGarmin remote sonar device.• NMEA In/NMEA Out—supports the input/output ofstandard NMEA 0183 version 3.01 data and sonar NMEAinput support for the DPT, MTW, and VHW sentences.• Aviation In—the proprietary format used for connectionto a Garmin panel-mounted GPS receiver. Allows theGPSMAP 496 to show a Go To or route selected on the panel-mounted GPS receiver. This eliminates the need to enter thedestination on both units.• Aviation In/NMEA & VHF Out—receives aviation dataand transmits out both NMEA data, at 9600 baud, and VHFfrequency tuning information to a Garmin Nav/Comm radio.See page 147.• TIS In—receives TIS data from a Garmin Mode Stransponder. See page 147.• TIS In/NMEA & VHF Out—receives TIS data and transmitsout both NMEA data, at 9600 baud, and VHF frequencytuning information to a Garmin Nav/Comm radio. Seepage 147.122 GPSMAP 496 Owner’s ManualM AIN MENU > SETUP TAB
