本文件定义了两个以太网设备（例如汽车应用的ECU）之间的通信信道以及传输介质（包括作为通信信道组成的单个组件的电缆和连接器）要测试的各种参数。本文件还规定了ISO/IEC/IEEE 8802-3物理层通信信道的一般射频要求。这些要求与通信信道的信号完整性有关。 本文件还规定了通信信道/链路以及电缆和连接器的电气性能测试方法。

This document defines various parameters to be tested for the communication channel between two Ethernet devices (e.g. ECUs for automotive application) and also for the transmission media including cables and connectors as a single component of which the communication channel consists. This document also specifies the general RF requirements for a physical layer communication channel for ISO/IEC/IEEE 8802-3. These requirements are related to signal integrity of the communication channel. Test methods for electrical performances of the communication channel/link and cables and connectors are also specified in this document.