永嘉县有线数字电视整体转换技术方案

Yongjia Cable Digital TV Overall Conversion Technology Solutions

介绍永嘉县有线数字电视整体转换技术方案。整转之后取消所有模拟电视节目,以6套免费数字电视节目代替国家规定的6套模拟电视节目作为过渡,实现真正的停模。模数混合电视信号和数字信号在总前端至分前端之间使用不同光纤传输,以光汇聚点为单位通过光纤跳接方式依次停模。

This article describes the overall technical conversion of cable digital television in Yongjia County.All analog TV programs will be abolished after the overall conversion.Six sets of free digital TV programs replace six sets of analog TV as a transition.Mixed analog and digital television signals and digital signals transmits through different fiber optic between total front and other points,focal point of light as the unit stop analog signal mode through the fiber optic jumper.