EN 60728-7-1-2005 电视信号,声音信号和交互式设备用电缆网络.第7-1部分:混合光纤同轴电缆外部线缆状况监测.物理层规范 IEC 60728-7-1-2003
Cable networks for television signals, sound signals and interactive services Part 7-1: Hybrid Fibre Coax Outside Plant Status Monitoring Physical (PHY) Layer Specification