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经过3年多的建设,上海用户光缆接入网已形成相当规模。目前,市区建成光缆环网70余个,光纤覆盖点达1 800余处,凡电话需求在400号线左右的商办大楼都实现了光缆到楼,为上海信息港的建设及实现信息传输的宽带化提供了良好条件。 上海的光纤通信建设始于10多年前,早期主要应用于电话局之间的局际传输。随着通信的迅猛发展,尤其是上海信息港工程开始实施,社会对通信的需求日趋高层次、多元化,原先以铜缆为主的用户接入网已越来越不能适应这种新的需求。从1994年起,电话局开始实施用户光缆环网的建设,率先在外滩、虹桥开发区、陆家嘴金融贸易区等处建成了一批用户光缆环网,使这些地区的用户接入网实现了光缆
After more than three years of construction, Shanghai’s subscriber cable access network has formed a considerable scale. At present, more than 70 optical cable ring networks and over 1 800 optical fiber coverage points have been built up in the urban area. All the commercial buildings with telephone requirements around line 400 have realized the optical fiber cable to the building, which is the construction of Shanghai Information Port and the realization of information transmission Broadband provides good conditions. Shanghai’s optical fiber communications construction began more than 10 years ago, mainly used in the early exchange of telephone exchanges between the Bureau. With the rapid development of communications and the implementation of the Shanghai Port of Information project in particular, the demand for communications in the community has been increasingly high-level and diversified. The originally copper-based subscriber access network has become increasingly inaccessible to this new demand . Since 1994, the telephone office has started the construction of subscriber optical cable ring network and took the lead in establishing a number of subscriber optical cable ring networks in the Bund, Hongqiao Development Zone and Lujiazui Finance and Trade Zone, enabling users in those areas to access the optical fiber network