NMEA 2000 Network Planning and Construction
The backbone is the main communication channel of an NMEA 2000® network to which your NMEA 2000 devices connect. You must connect each NMEA 2000 device to the backbone using a T-connector. You must connect the NMEA 2000 backbone to a power source, and you must install terminators at both ends of the network for proper functionality.
You should include all of the devices you intend to connect to the network.
You should note the approximate location on the boat for the backbone and each of the connected devices.
You should measure the distances between the location of each device and the backbone, and you should measure the overall length of the backbone.
You should note the power consumption (LEN) of each connected device.