Yacht Devices YDNU-02NF User Manual - page 21
Manual is about: NMEA 2000 USB Gateway YDNU-02
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LED Signal
Device State
Three RED signals per
second for a 10 second
period
Device is powered, but is not connected with a PC. It is possible that drivers
are not installed or cable is damaged or Device is disabled (“ejected”)
in PC settings or Device is connected to USB power adapter or with
“power only” USB cable.
Three second GREEN signal
Recording of diagnostics data is turned on.
Three-second RED signal
Recording of diagnostics data is turned off (EEPROM buffer is full
or service mode is turned on).
Table 1 continued