某小区FTTH接入网技术
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某小区FTTH接入网技术(课题说明书,开题报告,中期检查表,论文9000字)
摘要现代社会人们对于宽带需求越来越高,FTTH技术(Fiber To The Home)应运而生,实现了光纤到户宽带接入能力。本文通过PON技术比选,选择使用GPON技术实现小区FTTH接入的方案设计。方案设计首先要对现场进行勘察,明确小区位置,选定接入OLT设备,确保符合OLT最大接入距离限制。其次,勘察记录楼宇信息,确认小区住户数,确定工程设施光交箱、分纤箱的安装位置。最后,对小区内、楼内管道桥架等资源进行勘察,确认光缆的走线路由。方案设计中根据单分纤箱的覆盖户数要求,确定分纤箱数量,分配单箱覆盖楼层;按照端口与住户配比,设置二级分光器分光比。按照GPON 1:64分光比要求,配型一级分光器及PON口数量,确保整个方案能顺利实施。
关键词FTTH; 接入网; PON
FTTH Access Network Technology in a Residential Area
AbstractWith the development of science and technology, FTTH (Fiber To The Home) technology emerges as the times require, which realizes the ability of fiber-to-home broadband access. Through the comparison of PON technology, this paper chooses to use GPON technology to realize FTTH access in residential area. First of all, the project design should investigate the site, define the location of the community, select the access OLT equipment, and ensure that the maximum access distance limit of OLT is met. Secondly, the survey records the building information, confirms the number of residential areas, determines the installation location of optical handover boxes and fibre separation boxes of Engineering facilities. Finally, the resources of pipeline and Bridge in residential area and building are surveyed to confirm the route of optical cable. In the scheme design, according to the requirement of the number of covers of single dividing box, the number of dividing box is determined, and the single dividing box covers the floor is allocated.According to the ratio of port to household, the second dividing ratio is set. According to the requirement of GPON 1:64 dividing ratio, the first dividing device and the number of PON ports are allocated, which ensure the smooth implementation of the whole program.
KeywordsFTTH; Access Network;PON
高层住宅小区的方案描述
(1)每个完整的高层小区都分为N个单元,每个单元分为N个楼层,所以我们就可以根据单元楼来设置配线区,在配线区的住户量是需要我们做出控制的。
(2)在配线区中来安装光交箱,光交箱的数量是通过计算得来的,光交箱的容量是也应该根据用户数与交接箱接入光缆芯数之和来进行计算与选择。光缆交接箱内需要安装分光器,级数为一级。
(3)在配线区中的光缆交接箱中布放一条光缆到每栋楼或者是每个单元,光缆芯数需计算得出。
(4)分纤箱需根据计算得出放置在哪层楼内,光缆入户的光缆一般采用室内皮线光缆,在建设时期我们只需使用入户光缆,到使用时期再布放快速接头进行端接。
(5)在配线区布放室外的光缆,其芯数应该比分光器个数的2倍还要多。
(6)远端光缆应从最近的机房连接,其光缆的芯数不仅要满足所建小区的服务能力,而且要考虑将来是否有增加小区面积的想法。使用的光缆芯数应该是使用的分光器总数的2倍以上。
目 录
摘要及关键词 1
1 绪论 1
1.1研究背景及意义 1
1.2课题任务及主要研究内容 2
2FTTH相关技术简介 2
2.1PON技术的分类和介绍 2
2.2FTTH技术简介及其优势 4
3 利用GPON进行小区FTTH设计 5
3.1小区工程介绍 5
3.2小区FTTH工程图及结论 8
3.3工程带宽的计算 10
3.4设备选择 12
3.5ODN链路衰耗测算 13
4 小区FTTH总体设计规范与原则 13
4.1光缆进局及新立光交规范 13
4.2光纤入户光缆线路设计原则 14
5 总结与展望 14
参考文献 15
致谢 17