The primary function of the NGW-1’s NMEA 0183 LED is to indicate reception of a valid NMEA 0183 sentence. The NMEA 2000 LEDs main function is to indicate reception of a PGN on the NGW-1 conversion list. It is normal for the NMEA 0183 LED to flash faster than the NMEA 2000 LED due to the smaller bandwidth available to NMEA 0183.
This video provides a good visual representation of the different LED behaviour that can be observed in the NGW-1.
For more details, please refer to the NGW-1 User Manual available from the 'Downloads' section of the Actisense website:
The NGW-1 Conversion List, latest firmware and USB drivers are also available from the above downloads page.
NGW-1 Product page: