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This document is applicable to process automation equipment using a 10BASE-T1L and 100BASE-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 equipment using a 10BASE-T1L and 100BASE-T1L compliant, and Power over Data Lines (PoDL) compliant Physical Layer (PHY) for non-intrinsically safe Ethernet installations.
NOTE In this document, the term single pair Ethernet (SPE) is used for PoDL compliant PHY.
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 and 100 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, process and building automation.
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