標準號：BS EN 50494-2007
中文標準名稱：單獨住戶裝置用單一同軸電纜的衛星信號分配
英文標準名稱：Satellite signal distribution over a single coaxial cable in single dwelling installations
標準類型：M35;M11
發布日期：2007/12/31 12:00:00
實施日期：2007/12/31 12:00:00
中國標準分類號：M35;M11
國際標準分類號：33.060.40
引用標準：EN 50083-4;EN 61319-1-1996 + A11-1999;EN ISO/IEC 13818-1
適用范圍：This European Standard describes:– the system physical structure;– the system control signals, which implement an extension of the DiSEqC set of commandsdescribed in the DiSEqC bus functional specification;– the definition of identified configurations;– management of the potential collisions in the control signals traffic.Figure 1 illustrates the physical system configuration considered in this European Standard.Several satellite signal demodulators can receive signals from any of the input signal banks of the LNBor the switch; the signals selected by the demodulators (or receivers) are transported via a singlecable to these demodulators (receiver 1, receiver 2, receiver N).To achieve these single cable distributions, the Single Cable Interface (SCIF) (likely embedded in aLNB or a Switch) features some specific functions and characteristics.Figure 1 – General architecture of the single cable distribution