BS EN 61935-2-20. Generic cabling systems. Specification for the testing of balanced communication cabling in accordance with ISO/IEC 11801. Part 2-20. Work area cord for class D applications. Blank detail specification
英国标准EN 61935-2-20 综合布线系统 符合ISO/IEC 11801的平衡通信电缆测试规范 第2-20部分 D类应用的工作区跳线 空白详细规范