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New standards for Single Pair Ethernet


New standards for Single Pair Ethernet

The companies Phoenix Contact, Weidmüller, Reichle & Massari (R&M), Belden, and Fluke Networks announced a technology partnership for Single Pair Ethernet (SPE). They are developing and supporting the pin connector patterns collectively added to the IEC 63171-2 (office environment) and IEC 63171-5 (industrial environment) standards. These standards define IP20 and IP65/67 pin connector patterns for single and four-pair data transmission in Single Pair Ethernet applications. The companies in this partnership are pooling their technological expertise in order to ensure a standardized infrastructure for devices, connectors, cables, and measurement technology.

Single Pair Ethernet is one of the megatrends of industrial data transmission,” explains Torsten Janwlecke, President of the Business Area Device Connectors at Phoenix Contact. The purpose of SPE is not to define new higher transmission speeds or distances, rather, it is to form the framework for standardizing reduced amounts of cabling for applications. “This reduced cabling brings completely new areas of application into focus.

Data cabling with just one pair of wires enables transmission distances of up to 1000 meters at transmission rates ranging from 10 Mbps to 1 Gbps. This means that SPE is particularly well suited for infrastructure applications in machine building and systems manufacturing, process engineering, and also in building infrastructure. The main advantage is that SPE is environment-independent. Field devices, sensors, and actuators can be easily incorporated into the existing company-level Ethernet environment. There is no need for additional gateways or interfaces. “As opposed to fieldbus protocols, Ethernet is penetrating into every level of automation. It is more consistent, more efficient, and more cost-effective than fieldbus systems,” says Janwlecke.

Development of the Single Pair Ethernet began in the automotive industry, where the trend towards developing smaller and better performing devices is clear to see. Future-oriented technologies such as autonomous vehicles require a connection technology that enables the high-speed transmission of data with a very small structural footprint. Other industries can also benefit from this approach.
Our collaboration in this standardization will create security,” says Janwlecke. “Throughout the world, users will be able to construct efficient network and cabling structures, from the sensors, through the control and company level, right through to to the Cloud, all based on standardized interfaces.


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