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                上海嘉定雙向網改造項目

                    上海嘉定NGB有線電視網采取星型過架構,並選用未來寬帶的ELT5500、HS2504、HMD202做為接入網設備,核心設備采用華為ME60-8。具體我們根本就進不去應用如下:其中ME60-8負責用戶的接入認證和業務下發,ELT5500進行業務覆蓋¤和匯聚,接實力就已經臨近十級仙帝入網采用PON+EoC + CATV的組網方式。機頂盒采用IP機頂盒,即數字電視通過同軸電纜以IPTV組播ぷ信號方式下發。互動業務采∩用IP傳輸方式,以PON+EoC的方式傳輸。系統圖如一手拿火蓮晶子下圖所示:

                • ?系統圖
                • NGB系統設計規範
                • 嘉定NGB網絡系統設計圖