Industrial communication networks - Wireless communication networks - Part 1: Wireless communication requirements and spectrum considerations (IEC 62657-1:2017); German version EN 62657-1:2017
工业通信网络.无线通信网络.第1部分:无线通信要求和频谱考虑(IEC 62657-1-2017);德文版EN 62657-1:2017