​Ethernet Communication from Control Level to Field Level 

Single Pair Ethernet (SPE) is an Ethernet network implementation that uses a unique physical layer (PHY) transceiver over a single pair of wires. SPE reduces system cost, weight and wiring complexity when compared to traditional Ethernet multi-pair CAT5 cabling.

OSI network layers 2 to 7 remain the same across all the Ethernet physical layer types, eliminating additional software modification to implement SPE.

SPE enables you to take advantage of an all-Ethernet architecture while tailoring the system to the unique needs of your market segments. SPE, also referred to as "T1", can support multiple bandwidths and distances and the IEEE® defines SPE in the 802.3 standards group.