LEN stands for Load Equivalency Number and refers to the load factor of a device in the network. The best way to do this is to place the power supply in the middle of the network.Īn important term in this context is the so-called LEN value. It is recommended to connect the NMEA2000 network power supply so that the network is evenly loaded. In any case, make sure that the backbone is terminated at both ends with a terminal resistor. Assuming the voltage distribution is correct, the backbone or the master cable (depending on the type of cable) must not be longer than 200 m. When planning your network, make sure you keep in mind the maximum possible length of backbone cables. Set up the NMEA2000 network backbone / master cable Information can usually be found in your product‘s respective operating instructions. Before you connect twoĭevices to an NMEA2000 network, you should check whether their PGN (data sets) are compatible. Number and is used to identify the NMEA2000 data sets. The abbreviation PNG stands for Parameter Group
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