标准摘要
[中文适用范围]： IEC 61603 的这一部分提供了测量和指定第 1 部分未涵盖的会议用音频红外 (IR) 传输系统和类似系统的特性的方法（另见 3.1）。它允许描述对可用带宽进行不同经济使用的系统，以便得出有关干扰和兼容性的结论。还涵盖了接口（匹配）值和其他系统特性。该标准取代了 IEC 60764 第 2 章。 [外文原描述]： Gives methods for measuring and specifying those characteristics of audio infra-red (IR) transmission systems for conference and similar systems which are not covered by part 1. Replaces chapter 2 of IEC 60764.
英文名称Transmission of audio and/or video and related signals using infra-red radiation - Part 3: Transmission systems for audio signals for conference and similar systems