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上海的宽带接入网方式丰富多样，大致包括以下五种： １．光纤全业务接入节点 上海是全国著名的金融商业中心，经济发达，商业大楼数量众多，近几年上海电信大力投入光纤环路建设，已经建成 ５５０个光纤接入环系统，光纤到大楼（ＦＴ－ＴＢ）覆盖率达９０％以上。光纤全业务，
Broadband access network in Shanghai is rich and varied, broadly including the following five: 1. FTTH Access Node Shanghai is a well-known financial business center in China. With its developed economy and large number of commercial buildings, Shanghai Telecom has invested heavily in optical fiber loop construction in recent years. It has built 550 optical fiber access ring systems, and FTTH (FT -TB) coverage of more than 90%. Fiber full-service,