IEC 62488-3:20 21（E）适用于用于在电力网络上传输信息的电力线载波终端和网络，包括超高压、高压和中压（EHV/HV/MV）电力线，使用数字和可选的模拟调制系统，频率范围在16 kHz和1 MHz之间（另见IEC 62488-1）。 在许多国家，电力线载波（PLC）信道代表了公用事业拥有的电信系统的重要部分。通常经由PLC通道路由的电路也可以经由使用不同传输介质的通道路由，例如点对点无线电、光纤或明线电路。 因此，重要的是，通信系统中的终端之间使用的输入和输出接口是标准化的。 需要考虑将DPLC和/或APLC设备作为电信网络的一部分的问题可以在IEC 62488-1. 本文档的范围还包括在链路级别鉴定DPLC或ADPLC终端特性所必需的I/O接口和测试设置的描述。

IEC 62488-3:2021(E) applies to power line carrier terminals and networks used to transmit information over power networks including extra high, high and medium voltage (EHV/HV/MV) power lines using both digital and optionally analogue modulation systems in a frequency range between 16 kHz and 1 MHz (see also IEC 62488-1).
In many countries, power line carrier (PLC) channels represent a significant part of the utility-owned telecommunication system. A circuit normally routed via a PLC channel can also be routed via a channel using a different transmission medium such as point to point radio, optical fibre or open wire circuit.
It is therefore important that the input and output interfaces that are used between terminals in the communication system are standardised.
The issues requiring consideration of DPLC and/or APLC devices as parts of a telecommunication network can be found in IEC 62488-1.
The scope of this document also includes the description of I/O interfaces and test set-ups that are necessary to qualify characteristics of DPLC or ADPLC terminal at link level.