Products & Solutions

Single pair Ethernet – HARTING T1 Industrial

T1-Connection technology makes Ethernet implementation easy and cost-effective – from the cloud to the smallest sensor

One single pair is enough - Let's twist!

Tw1ster - our little giant with twisted pair technology - takes data and power to previously inaccessible locations, turning the traditional bus system on its head. HARTING relies on alliance of research, industry and standardisation for Single Pair Ethernet.

Tw1ster doesn’t just have superhero visions with its single-pair Ethernet transmission, he also has an industry standard to his name. After a multi-stage selection process, the international body of standards, the IEC, has elected the HARTING T1 Industrial as the future of single-pair Ethernet mating for industrial applications. We congratulate our hero and we will continue to work to ensure he remains as the industry standard for the forthcoming future.

Excellent! Tw1ster is now standardized according to IEC 61076-3-125

People are familiar with the trend towards ever smaller and more powerful devices from the IT world. But this trend is also catching on in other industries. Despite higher data rates and the parallel transmission of power (remote power), cabling components must become smaller and lighter. The new single-pair Ethernet technology SPE, based on transmission standards per IEEE 802.3, is currently being implemented in new generations of automobiles and replaces CAN and other bus systems. Controllers, communication and security functions will run uniformly over Ethernet in the future – a basic requirement for networked or, later on, autonomous driving.

SPE now enables data transmission over Ethernet via a single pair of wires while also providing a simultaneous power supply to end devices via PoDL – Power over Data Line. Until now, two pairs were required for Fast Ethernet (100MB) and four pairs for Gigabit Ethernet. Users are also intent on leveraging these advantages in industrial automation. Here, SPE allows the barrier-free connection of field devices, sensor/actuator technology and much more. The field level becomes smart, thus reducing the effort involved in configuration, initialisation and programming. Setup, operation and maintenance of equipment become more efficient and cheaper. SPE in machines, robots or rail technology provides additional weight and space savings. The overall cabling effort becomes easier, and cabling can be installed much faster.

Single-pair cables and connectors save space and weight in the application

Here, SPE delivers the decisive difference to bus systems or current interfaces, which are still to be found today at the field level. This makes the field level smart and thus reduces the effort involved in parameterization, initialization and programming. Construction, operation and maintenance of equipment become more efficient and cheaper. SPE in machines, robots or railway technology adds weight and space savings. The entire wiring is easier and can be installed much faster.

Consistent compatibility of devices, cables and connectors

The end-to-end compatibility of devices, cables and connectors is a prerequisite for the widespread use and hence the successful marketing of SPE technology. This is ensured by international standardization (ISO / IEC and IEEE 802.3). At the beginning of 2018, an international selection process based on ISO / IEC was used for the cabling and selection of standard SPE mating faces, involving more than 20 national expert committees. The international standardisation selection has seen two mating faces prevail:

With SPE and a miniaturized interface, HARTING opens up completely new possibilities in automation
  • For building wiring, the mating face according to IEC 63171-1: this mating face is based on the proposal from CommScope and is known under the synonym variant 1 (LC style) for M1I1C1E1 environments
  • For industrial and industry-related applications, the mating face according to IEC 61076-3-125: this mating face is based on the proposal of HARTING and is specially designed for use in up to M3I3C3E3 ambient conditions, and is known as variant 2 (industrial style). This SPE connector concept can handle both 1Gbps for shorter distances and 10Mbps for the long distances with a mating compatible mating face.

MICE describes environmental conditions for installations and provides planners and users with valuable information on the specification of technical equipment and cabling. As part of this, the requirements for mechanical robustness (M), IPxx degree (I), chemical and climatic resistance (C) and electromagnetic safety (E) are described. In the broadest sense, M1I1C1E1 describes an environment such as the one found e.g. in an office building, while M3I3C3E3 describes an extreme environment such as e.g. in an industrial setting or outdoors.

For HARTING, SPE is a technology topic and springboard for numerous new product developments.

For the user, SPE is not only an opportunity, but a challenge as well. Is the new technology as secure as the previous solution? Can SPE also be used in process automation with cable lengths of 1000m? How much power can the device pull? When will SPE connectors and cables be available, and are they sufficiently standardised?HARTING takes these questions very seriously and has decided to answer them as part of a technology partnership.

The initiative of the Federal Ministry for Economic Affairs and Energy is helping via the program WIPANO - "Knowledge and Technology Transfer through Patents and Standards". HARTING, Reutlingen University of Applied Sciences and LEONI are working on urgent questions relating to a multitude of SPE aspects in the joint project NG200, while simultaneously incorporating the results into international standardisation. Recently, with IEC 61076-3-125, this was an important step towards weight-saving and space-saving cabling for an industry-compatible single-sided mating face.

Furthermore, the text concerning the SPE cables in the IEC 61156-xx and in the ISO / IEC JTC 1 / SC 25 / WG 3 is being worked on. Also on the corresponding cabling standards in the IEC SC 65 / JWG 10 as well as in the ISO / IEC 11801 and IEC 61918 with installation guidelines and limits for SPE. In a further step, the collaborative project is investigating the question of where the technical limits of SPE transmission channels lie. As a result, as of 2019 the SPE user will not only have products available, but also valid standards and guidelines for installing and testing components. The HARTING technology partnership provides customers with support in the implementation of SPE, and thus concrete competitive advantages.

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