阳泉市光纤接入网系统设计.doc

阳泉市光纤接入网系统设计 内容摘要：本文从实际需要出发，阐述了实施光纤接入网的必要性，从接入网的基本概念、组成、功能及其特点入手，通过大量的市场调查和科学分析，对各种电信业务进行了分类预测。实现了阳泉市光纤接入网发展建设的系统网络拓扑结构，并且实现了综合业务如ISDN、DDN、INTERNET、CATV等业务的接入。 关键词：光纤接入网 网络规划 SDH，，，23平方公里，，，，，，，，，，，，，，，，，，， YangQuan lies to the east of the midland of the ShanXi and the mid of the basin of the TaiHang mountain. There are city, suburbia, digging and two counties, it includes twenty-six towns，twelve street offices and six hundred and fifty thousand people. In the center of the city，there are one hundred and four thousand people，and the area is twenty-three square kilometers，it is the center of politics， economy ，culture of the YangQuan region. Along with the development of the city， the economy development enters into the strange period. The national economy also improved. The development of industry and service is most obvious. The economy development accelerates our city’s telecom career developed， the income increased year after year. The applications of computer， the advanced communicate technique and the import of equipments， it makes the marketable requirement extend. The telecom applications developed to multiformness from singleness， the requirement to the communication equipment is also higher and higher， the communication net must is digital， integrated， wide. Currently， the development of center net is quick， but the development of user net is later， so it became a bottleneck of the telecom development. The digital and wide HONET is the base that makes the telecom have integrated ability. Fibre， band of frequency is wide， capacity is large， anti-jamming ability is mightiness， it is a better media that fits to develop the wide band application. Using the HONET to rebuild the current line net， not only improves our service quality， but also provides integrated application that include voice， digit， image， thus makes the net more integrated， united， advance. So building the HONET step by step and make it become effective makeup of the existing line net， it w