IEC TS 63444:2026 RLV

Industrial networks - Ethernet-APL port profile / Ethernet-SPE profile specification

OVERVIEW

IEC TS 63444:2026 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.



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.

COMMENTS

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PRODUCT DETAILS

Status Current
Edition 2026
No. of Pages 120
ICS Classification 29.240 Power transmission and distribution networks
Committee TC 65/SC 65C
Available for Purchase For sale in Singapore only
Adoption IEC : 0