Furuno IF-NMEASC - Manual (Page 17)

9
4. OPERATION
Normally, no operation is required except to power the unit (from the switchboard). The ST-BY
LED on the cover is ON, OFF or flashing according to equipment state.
Flashing: NMEA 2000 data is input
ON: NMEA 2000 data is not input
OFF: Power loss, blown fuse, operation error
IF-NMEASC INTERFACE UNIT ST-BY
ST-BY LED