Page 70 - 2020 Interconnect Innovations eBook
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and bandwidth that Ethernet can provide. Ethernet, however, used to struggle with real-time communication. The development of time-sensitive networking (TSN) technology was a game-changer. TSN provides reliable, deterministic Ethernet communication that supports critical processes and communications in industrial automation networks.
Ethernet can also provide better cybersecurity than the bus communication protocols, as Ethernet data packets are much larger than the data packets supported by fieldbus protocols. As a result, Ethernet must have more encryption contained in each packet, which provides superior data security compared to fieldbus technologies.
Single-Pair Ethernet offers the same core advantages as Ethernet technology, including high speed and bandwidth. SPE technology can support bandwidths up to 600MHz and Gigabit Ethernet data transfer speeds up to 1Gb/s, which makes it perfectly suited for applications where a lot of data needs to be processed quickly.
2. Lightweight, Economical Ethernet for Every Device in an Industrial Network
Ethernet has been a preferred communication protocol for industrial environments for many years. However, the cost and weight of four- and eight-wire cable made Ethernet unavailable for several of the smaller devices.
Since SPE technology uses only one twisted pair comprised of two copper wires, the weight of the raw cable is much less than that of a traditional four-wire Cat 5 or eight-wire Cat 6A cable. Less copper also means lower overall cabling costs. As a result, utilizing Single-Pair Ethernet can reduce the cost of the cable deployment. Its single twisted wire pair cable also requires a connector with only two contacts. This means that SPE jacks require less real estate on PCBs and can result in space savings for device manufacturers. In addition, industrial Single-Pair Ethernet connectors can be terminated onto two-wire fieldbus cabling, which makes the transition from fieldbus protocols to SPE both easy and cost-effective.
As such, Single-Pair Ethernet offers excellent performance while keeping the overall cost of deployment lower when compared to industrial four- and eight-wire Ethernet solutions.
» HARTING’s T1 Industrial mating interface is standardized according to IEC 63171-6 (formerly IEC 61076-3-125) and remains the same across all IP ratings to ensure interoperability. Its robust industrial design also offers locking lever protection, 360° shielding, and high mating cycles and meets IEEE 802.3 requirements for Single-Pair Ethernet.

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