GY中华人民共和国广播电影电视行业标准GY/T 300—2016有线数字电视光链路技术要求和测量方法Technical requirements and measurement methods on optical linkused in digital CATV system2016-05-27发布2016-05-27实施国家新闻出版广电总局发布GY/T 300—2016目次前言 ................................................................................ II1234范围 .............................................................................. 1规范性引用文件 .................................................................... 1术语和定义 ........................................................................ 1光链路组成与参考模型 .............................................................. 34.1光链路组成 .................................................................... 3光链路参考模型 ................................................................ 3光链路性能指标参考点 .......................................................... 54.24.356技术要求 .......................................................................... 5测量方法 .......................................................................... 76.1频率范围链路平坦度和群时延测量 .............................................. 7光波长范围测量 ................................................................ 8光功率测量 .................................................................... 8数字调制信号信噪比的测量 ...................................................... 8调制误差率测量 ................................................................ 8比特误码率测量 ................................................................ 9反射损耗测量 .................................................................. 9模拟电视频道C/N测量.......................................................... 9模拟电视频道C/CTB测量........................................................ 9模拟电视频道C/CSO测量....................................................... 96.26.36.46.56.66.76.86.96.10附录A（资料性附录）有线数字电视信号与EPON信号共纤传输时的参量选择................ 10附录B（规范性附录）直调窄播光插入波分复用光链路测量...............................16附录C（规范性附录）有线数字电视信号与EPON信号共纤传输光链路测量.............