What is Single Pair Ethernet?
Single Pair Ethernet (SPE) is a technology that enables the transmission of Ethernet over only one pair of copper wires. In addition, it enables a simultaneous power supply of terminal devices via PoDL (Power over Data Line) which previously required two pairs for Fast Ethernet (100MB) and four pairs for Gigabit Ethernet. Read in this section how SPE opens up completely new possibilities and fields of application for Industrial Ethernet.

SPE in industrial applications offers IP-protected solutions
Single Pair Ethernet work continues with the aim of toughening up this evolutionary new technology for as many application scenarios as possible.
Learn More
Single Pair Ethernet, RJ45 and clarifying the mating interfaces
Previously, there has been a classic break in communication systems between Ethernet and fieldbus systems.
Learn More
Single-Pair Ethernet for Constrained Devices
Single Pair Ethernet offers reduction in wiring, node cost, size and power consumption, delivering communication and power over a single pair.
Learn More
Single Pair Ethernet gears up to impact industrial automation
With Single Pair Ethernet technology and Time Sensitive Networking, industrial automation is poised for a leap forward in precision and productivity.
Learn MoreVideo Overview
Single Pair Ethernet
With just two wires, Single Pair Ethernet technology provides unlimited opportunities for future industrial networking. This video by Phoenix Contact introduces this technology, discusses the evolution of networking, industry trends, SPE standards and future applications.
IIoT Enabling Technology
New Transmission Standard
Single Pair Ethernet is the future industrial communication standard. But what’s behind it? Learn more about SPE in this video from HARTING and how Single Pair Ethernet provides a new transmissions standard for industrial automation via just one pair of conductors.