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IEC TS 63444:2026

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Abstract

IEC TS 63444:2026 is applicable to process automation equipment using a 10BASE-T1L compliant Physical Layer (PHY). Ethernet-APL intrinsically safe profiles with different predefined entity or limitation parameters (for example voltage, current, power, capacitance, inductance, cable length) simplify the examination of the interconnection of different Ethernet-APL ports. Furthermore, this document is also applicable to factory and building automation and control equipment using a 10BASE-T1L compliant, and Power over Data Lines (PoDL) compliant Physical Layer (PHY) for non-intrinsically safe Ethernet installations. NOTE In this document the term Ethernet-SPE is used for PoDL compliant PHY. The following technical features are part of this document: - topology with trunk and spur installation capability; - 2-wire technology (full-duplex communication data rate of 10 Mbit/s); - long distance (refers to cable lengths of several hundred meters, with spans up to 1 000 m); - intrinsic safety (installation of Ethernet-capable field devices in hazardous areas); - power supply to field devices over the same 2-wire cable used for data communication; - non-intrinsically safe Ethernet installation in factory and building automation. This second edition cancels and replaces the first edition published in 2023. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) new power class for Ethernet-APL; b) addition of Ethernet-SPE; c) clarification of usability of Ethernet-APL in non-hazardous locations.

Document information

  • Standard from IEC
  • Published:
  • Edition: 2
  • Version: 1
  • Document type: TS
  • ICS 29.240
  • ISO TC TC 65/SC 65C

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