Single Pair Ethernet connectors

11 November 2022

Molex has added Single Pair Ethernet (SPE) technology to its connector product portfolio.

The single pair cable connection solution goes beyond conventional Ethernet capabilities to expand IP connectivity in automated factory settings. SPE’s higher data rates on long cable runs eliminate transmission bottlenecks in field-level network operations and industrial internet of things (IIoT) infrastructure.

Current IIoT networks are often incomplete, containing ‘islands’ of devices connected only indirectly through bespoke, analog or proprietary gateways. SPE delivers Internet connectivity and power directly to essential devices, eliminating the need for fieldbus configurations. Open IP protocol through SPE enables industrial operations to bridge the gap between the cloud and remote systems.

SPE delivers Ethernet transmission via a single copper-cable pair. In addition to data transmission, it also supports the simultaneous power supply of the end devices through Power over Data Line (PoDL) – similar to Ethernet-over-Line (EoL) – with an output of up to 50 W.

This latest evolution of Ethernet technology is transforming data accessibility and device control for intelligent industrial applications. Compliant SPE solutions include connectivity for IP20 and IP67 ratings.

Molex’s product releases will meet Institute of Electrical and Electronics Engineers (IEEE) standards for up to 1 km of cable length. SPE can achieve 10 Mbps per IEEE 802.3cg, 1 Gbps per IEEE 802.3bw. Molex plans to reach 10 Gbps for a newly developed standard IEEE 802.3ch. It is expected that SPE use in these categories can replace almost all existing fieldbus types.

“The new SPE from Molex has passed the verification and certification stages. This means it will soon be ready for deployment, marking a key milestone in the evolution of industrial IoT,” said Mark Schuerman, senior manager of business development in Global Market Segments, Molex. “This product is intended to close connectivity and control gaps in industrial networks.” 

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