NMEA 2000 Network

Setting up the NMEA 2000 network is easier than I had assumed.


    • You need special cable which has a male Micro-C plug on one end and a female Micro-C plug on the other end.aIMG_2431

These cables cost a fortune and come in different lengths.

There are also cables with plugs to be mounted “on-site” when installing the cable onboard. There is no real alternative to buying thes ready-to-use cables even if you are good at soldering since the naked cable and the plugs are even more expensive than the assembled ones.

  • You set up a cable (backbone), from one end of the vessel to the other end. This cable is terminated on either side by end-connectors which are special plugs with a resistor build in.aIMG_2433
  • Several T-pieces aIMG_2432 or 4-way connectors aIMG_2434 are inserted into the backbone. So the backbone in fact consists of several lengths of cables connecting all T-pieces and 4-way-connectors.
  • into one of the T-pieces in the middle of the Backbone a cable for the 12V- power supply of the NMEA-2000-devices is plugged in.aIMG_2436
  • All NMEA 2000 Units are just connected to the t-pieces of the Backbone. Here are shown the chart plotter and the rate compass.aIMG_2437 and that is it. All Units can talk and listen to each other via this System.aIMG_2438

NMEA2000 / Raymarine SeatalkNG / Raymarine Seatalk Hybrid

All Raymarine instruments were connected via Seatalk connections. A Seatalk to SeatalkNG converter kit was used to interface Wind, log and depth sounder data with the NMEA2000 Network. SeatalkNG uses the same format as NMEA2000. A connecting cable between the SeatalkNG and the NMEA2000 system was soldered by cutting one cable of each standard in half and soldering the wires together thus creating a SeatalkNG / NMEA2000 connecting cable. At the end of the SeatalkNG backbone a SeatalkNG end terminator (resistor) was used and on the NMEA2000 side a B&G terminator was used.

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