Draft Document - Fibre-optic communication subsystem test procedures - Part 4-1: Installed cabling plant - Multimode attenuation measurement (IEC 86C/1705/CD:2020); Text in German and English
文件草案——光纤通信子系统试验程序——第4-1部分:已安装的布线设备——多模衰减测量(IEC 86C/1705/CD:2020);德语和英语文本