毕 业 设 计
设计题目：桃花坞二小区GPON光纤接入网规划设计
摘要
随着现代信息技术的不断更新升级，人们对电信业务的带宽、业务、简洁、多样的要求也越来也高。GPON是新一代宽带无源光综合接入标准，具有高带宽、高速、高效传输、大范围覆盖、用户接口丰富等众多特点，已被大多数运营商视为实现接入网业务的宽带化、综合化改造的理想技术。
本文简要介绍了关于GPON的一系列基础知识和以GPON为接入方式的小区接入网规划。本着实用的原则，综合考虑设备选型，ONU位置，IP地址分配，实现其可运营性。并选定一个小区，进行完整的光纤接入网设计，达到学有所用的目的。
关键词 GPON ONU FTTH
Abstract
With the development of modern information technology unceasing renewal upgrade, people to telecommunication business of bandwidth, business, concise, diverse requirement also more and more high also. GPON is a new generation of broadband passive optical integrated access standard, has the high bandwidth, high speed, high efficiency transmission, large range, the user interface is rich, and many other features, has been most operators as realize access network business broadband change, comprehensive reform of the ideal technology.
This paper briefly introduces the basic knowledge about a series of GPON and GPON for access area access network planning. In line with the principle of practical, comprehensive consideration of the equipment selection, ONU position, IP address assignment, achieve its operational sex. And selected a area of complete fiber access network design, to achieve the purpose of make your knowledge court.
Keywords GPON ONU FTTH 目录
前言 ............................................................................................................................ 5
一 绪论 ...................................................................................................................... 7
1.1 光纤接入技术 ........................................................................................ 7 1.2 GPON技术介绍 ....................................................................................... 8 1.3 FTTH技术 .............................................................................................. 11
二 光纤接入网的基本概念 .................................................................................... 12
2.1 光纤接入网的优势 .............................................................................. 12 2.2 光纤接入网结构 .................................................................................. 12 2.3 光纤接入网的分类 .............................................................................. 14 2.4 接入网的拓扑结构 .............................................................................. 15
三 桃花坞二小区本地网网络结构和运行数据 .................................................... 17
3.1 桃花坞二小区本地平面图及局所位置 .............................................. 17 3.2 本设计所涉及范围的用户群状况 ...................................................... 17 3.3 现行用户接入方式及接入业务状况 .................................................. 18 3.4 业务发展预测 ...................................................................................... 19
四 建设接入网的可行性和必要性 ........................................................................ 19
4.1 建设接入网的可行性 .......................................................................... 19 4.2 建设接入网的必要性 .......................................................................... 19
五 桃花坞二小区GPON光纤接入网规划设计方案 ............................................ 20
5.1 接入方式的选择 .................................................................................. 20 5.2接入网网络结构的设计 ....................................................................... 22
六 ONU位置的设置及容量的计算 ....................................................................... 30
6.1 OLT和ONU位置的设置 ................................................................... 30 6.2 OLT和ONU容量计算 ....................................................................... 34
七 光功率分配计算过程 ........................................................................................ 35 八 ＩＰ地址分配 .................................................................................................... 41
8.1 IP地址概述............................................................................................ 41 8.2 A、B、C类地址研究 ......................................................................... 42 8.3 公有和私有IP地址 ........................................................................... 43 8.4 PON网络IP地址的规划 ................................................................... 44
九 网络保护方式、网同步设计 ............................................................................ 46
方案论证、评估 ...................................................................................................... 51 致谢 .......................................................................................................................... 52 参考文献 .................................................................................................................. 53 前言
光纤接入网以光纤作为传输媒质，传输距离长，传输容量大，抗干扰性强，衰减小，重量轻，是未来宽带固定接入的必然发展方向。