WNew IEEE 802.3 standards and technologies deliver power and data over a single pair of wires to address the challenges of ‘operational technology” (OT) automation applications and simplify OT networks. This talk will explore some of the unique features and reasons for Single Pair Ethernet’s growing adoption in the OT space leveraging modern technology to revisit core Ethernet features and speeds suitable for automation and control applications.
Experts consider Single Pair Ethernet to be the next generation of communication architecture in automation. The concept behind it is essentially an extension of the Ethernet to the sensor, that is wherever “tracks” (in the literal sense) rather than data highways are needed in every inch of space within the plant – it is compact, flexible and offers extensive reach. Download Weidmueller’s White Paper.
Read this CI&M interview on emerging SPE standards and technologies with Adnan Ahmed, Valerie Maguire, Harshang Pandya and Bob Voss, members of TIA’s Single Pair Ethernet Consortium (SPEC).
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Fog and Edge Computing lie on the peripheries of the cloud. Fog computing focuses on the space of data area between the source and the cloud. Edge computing, on the other hand, centers on where data is collected.
The merging of IoT applications with edge computing will make the required data transfer speed a reality. It is important not to ignore security in the overall structure. The combination of edge, IoT and zero trust via 5G will enable secure, high-performance application scenarios to become a reality, protected from unwanted prying eyes.
The $64,000 question is: Has copper finally outlived its usefulness? The short answer is no. There will continue to be certain low-bandwidth, short-reach applications for smaller data centers where copper’s low price point outweighs its performance limitations. So too, there will likely be a role for CPOs and front-panel-pluggable transceivers.
High speed direct attach cables (DACs) are keeping up with increasing requirements in data centers, ensuring that switch-to-server network interface connections don’t become the weakest link. DACs have the lowest latency of all short-reach connection options. This is due to measurable delays in optical connections that actively change copper signals to optical signals and then back to copper signals.
Download the app note to learn about the advantages of using Single Pair Ethernet, the perfect solution for low bandwidth, long-distance, secure, powered bidirectional communications.
Key topics that are covered in the app note include: Use Cases Status of Standards Connectors Testing Requirements and much more
The latest generation of SPE offers Ethernet data transport rates of 10 Mbps, full duplex. This may not seem like much considering CAT6A can run at speeds up to 10 Gbps full duplex. Yet, in many situations, a 10 Mbps max is more than enough throughput required. Additionally, the 802.3cg Ethernet specification uses the 802.3bu standard for power transport. This is also known as power over data line — or PoDL. The PoDL standard can power compatible devices belonging to 1 of 10 different power classes that range from 0.5 to 50 W of power to the end device. In many cases, 50 W of power is more than any single device would need.
SPE also has a second benefit that will be crucial for some enterprise deployment situations. Instead of a 100-meter distance limitation for both data and power over Ethernet (PoE) that’s common in 4-pair Ethernet standards, SPE supports cable lengths for data and PoDL up to 1 KM in length.
