Testing of balanced communication cabling in accordance with series EN 50173 Part 2-20: Patch cords and work area cords - Blank detail specification for class D applications (IEC 61935-2-20:2008, modified); German version EN 61935-2-20:2009
根据EN 50173系列第2-20部分:跳线和工作区跳线-D类应用空白详细规范(IEC 61935-2-20:2008 修改)对平衡通信电缆进行测试;德文版EN 61935-2-20:2009