PT 63444 - TC 65/SC 65C/PT 63444
TC 65/SC 65C/PT 63444
General Information
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.
- Technical specification60 pagesEnglish languagesale 15% off
- Technical specification120 pagesEnglish languagesale 15% off
IEC TS 63444:2023 is applicable to process automation equipment using a 10BASE-T1L compliant (see IEEE Std 802.3-2022, Clause 146) 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.
The following technical features are part of this document:
- topology with trunk/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.
- Technical specification36 pagesEnglish languagesale 15% off
Frequently Asked Questions
PT 63444 is a Technical Committee within the International Electrotechnical Commission (IEC). It is named "TC 65/SC 65C/PT 63444". This committee has published 2 standards.
PT 63444 develops IEC standards in the area of Information technology. Currently, there are 2 published standards from this technical committee.
The International Electrotechnical Commission (IEC) is the world's leading organization for the preparation and publication of international standards for electrical, electronic, and related technologies. Founded in 1906, the IEC provides a global platform for companies, industries, and governments to meet, discuss, and develop the international standards they require.
A Technical Committee (TC) in IEC is a group of experts responsible for developing international standards in a specific technical area. TCs are composed of national member body delegates and work through consensus to create standards that meet global industry needs. Each TC may have subcommittees (SCs) and working groups (WGs) for specialized topics.