1 Scope

This document 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.