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Technology

Single Pair Ethernet – Problem Solver in

Building Automation

Features and field of application of Single Pair Ethernet (SPE). © Thermokon

The requirements in networked building tion to low latency, the data transmitted also Use of SPE Technology for Operating
automation in terms of communication require a high communication speed and inte- Devices: The Beginning of a New Era
speed and functionality are constantly gration into networks based on the IP protocol.
increasing. Components in a building Modern security requirements are largely based Thermokon will initially introduce the SPE tech-
become more and more communicative. on the Internet protocol and can therefore no nology in room operating units, as the need for
At the same time, new building security longer be easily implemented using (existing) high speed, low latency and high security is par-
requirements such as the EU 2022/2557 RS485 standards. ticularly important here. These devices require
CER (Critical Entity Resilience) are being fast and reliable communication with the BMS to
added. Single Pair Ethernet (SPE) is one of the latest ensure the operation of complex systems and to
technologies with the potential to fundamen- meet the increasing demands of modern build-
Looking ahead, some existing bus systems and tally change building automation. SPE enables IP ing automation.
communication standards based on the RS485 data transmission and simultaneous power sup- 1. Speed and Latency: Room operating units
protocol reach their limits in terms of com- ply through a single pair of wires, which not only that need to communicate with other systems
munication speed. An immediate response is simplifies cabling, but also reduces costs while in real-time benefit significantly from the high
expected, particularly in the event of switching considerably simplifying installation in a wiring- data bandwidth of up to 10 Mbit/s and the low
lights and blinds. Modern room operating units safe manner. Thermokon regards SPE as one of latency of the SPE technology. This improves
now have high-resolution graphic displays for the key technologies for the future of wired build- response times and the efficiency of the entire
convenient control of room parameters. In addi- ing automation. BMS.

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