Ethernet is a communication technology specifying the cooperation between software (protocols, stacks, etc.) and hardware (modules, cables, distributors, network cards, plug-in connectors, etc.) for cable-bound data networks. Originally, this technology was developed for local data networks (LANs). Ethernet defines the data exchange in the form of data packets between a network of connected devices.

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Currently, transfer rates of 10 Mbps, 100 Mbps (Fast Ethernet), and 1000 Mbps (Gigabit Ethernet) to 10 Gbps are in use. The Ethernet protocols cover all areas of a data transfer:

• Cable types 

• Plug-in connectors 

• Bit transmission layer 

• Packet formats 

• Handling of the data

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In the form of Industrial Ethernet, the Ethernet wiring standard is now being used increasingly in industrial production plants. Different standards have established themselves in this sector.