Ethernet
An address based data packet network capable of high speeds (10/100/1,000Mbs) originally developed for the computer industry that is seeing adoption in the marine industry. Ethernet networks are designed as a star topology. Systems of three or more nodes require a hub, router or switch to facilitate all point to point connections. An NMEA standard for the transfer of NMEA 2000 messages using an Ethernet protocol is being developed that will be called OneNet.
The standard cable/connector RJ45 of the computer industry that is very low cost but alternatives such as SeaTalkHS and RayNet are preferred connectors in the marine environment.
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