2 x Terminating Resistors (to terminate the network on both ends of the backbone).1 x Power-T (to insert network power, should be fused).In addition, a correctly functioning network will require at the minimum the following components: Instrument drop: The length of drop cable that connects an NMEA 2000 device to the backboneĪn example of a full NMEA 2000 network is shown below.Īll NMEA 2000 networks require a 12V DC (or 13.8VDC) supply.T-pieces: are connected along the network for NMEA devices to plug in to using a drop cable.Backbone: The main trunk of cable that runs through the boat to form the network, either with one end-fed power point (1 segment) or one mid-fed power insertion point (2 segments). As shown in figure 1 above, NMEA 2000 networks consist of:
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