小区EPON接入规划设计方案

毕业设计（论文）：英民小区EPON接入规划设计方案毕业设计（论文）报告课题名称学生姓名专业学号申请学位级别指导教师单位指导教师姓名二○○年月毕业设计（论文）：英民小区EPON接入规划设计方案1摘要近年来，骨干网的能力进一步增强，与此同时接入网方面却没有大的改进。接入网的能力的增长远远落后于Internet流量的快速增长，因而接入网成为高效的LAN和骨干网发展的瓶颈，又被称为“最后一公里”。EPON由于集中了以太网设备价格低廉和光纤能够提供高带宽的优点，成为下一代接入网的最佳选择。本论文首先从接入网的基本概念出发，对接入网的定义与定界和拓扑结构进行介绍，然后介绍了目前流行的几种宽带接入技术，引出EPON接入技术，并对EPON技术的产生背景、网络结构、工作原理和技术特点作进一步介绍；进而从EPON业务接入出发，分析EPON系统支持的业务类型以及需求，设计了一套支持多业务的接入解决方案；最后从EPON的应用角度，阐述EPON接入网的组网原则，运用EPON技术对滑县英民小区进行接入组网。关键词：接入网，EPON，多业务。毕业设计（论文）：英民小区EPON接入规划设计方案2ABSTRACTInrecentyears,thecapabilityofBackboneNetworkhasbeenmoreincreased,theaccessnetworkhasnotmuchimprovementinthemeantime.TherateofincreaseofcapabilityoftheaccessnetworkisfarbehindtheflowofInternet,sotheaccessnetworkhasbecomethebottleneckofthedevelopmentofthehighefficiencyLANandBackboneNetwork,anditgoesthenameof“thelastonekilometer”.DuetoEPONisatechnologywiththeadvantagesofthelow-priceEthernetequipmentsandfiberwhichcanprovidehighbandwidth,itbecomesthebestchoiceofthenextaccessnetwork..Thearticleproceedfromthebasicconceptofaccessnetwork,introducesthedefinitionanddemarcation/opologicalstructureofaccessnetwork,thenintroducessomeBroadbandaccesstechenologiesthatarepopularnow,todrawtheaccesstechnologyofEPON,andfutherintroducesthebackgroundofgeneration/networkstructure/theoryofoperation/techniquefeatureofEPON;AndproceedfromtheserviceaccessofEPON,analyzetheservicetypesanddemandswhichEPONsystemsupports,designaaccessschemewhichcansupportdifferentservices;finally,fromtheapplicationangleofEPON,expatiatethemeshingprinciple,andaimatdifferentkindsofusers,separateselectcampusnetwork/commercialclient/denizenusertheserepresentativeuser,baseonEPONanduseaccesstechnologieswithyingminuptown.Keywords::AccessNetwork,EPON，DifferentServices毕业设计（论文）：英民小区EPON接入规划设计方案3目录摘要.........................................................................................................................................................1第一章绪论.......................................................................................................................................4第二章EPON的基本概念和原理......................................................................................................62.1EPON的产生的背景.............................................................................................................62.2EPON的网络结构图.............................................................................................................62.3EPONG工作原理....................................................................................................................72.4EPON的技术特点.................................................................................................................8第三章EPON接入的可行性和必要性............................................................................................103.1PON技术优势......................................................................................................................103.2EPON系统支持的业务类型及需求分析...........................................................................10第四章英民小区EPON接入规划设计方案...................................................................................124.1基于英民小区EPON的宽带接入网方案的设计原则.........................................................124.1.1组网原则............................................................................................................................124.1.2ONU的选址原则...............................................................................................................124.1.3pos的选址原则................................................................................................................124.1.4光缆网络结构...................................................................................................................134.1.5基于EPON的混合接入技术选用原则............................................................................134.2英民小区EPON组成.............................................................................................................134.3EPON网络结构设计..........................................................................................................144.3.1OLT部署位置..................................................................................................................154.3.2ONU部署建议..................................................................................................................164.3.3分光器部署.....................................................................................................................164.4EPON网络规划部署.........................................................................................................194.5ODN光链路衰减计算..........................................................................................................19第五章后期工程故障及维护方法.....................................................................................................225.1EPON运维解决方案分类：................................................................................................225.2故障告警、诊断和恢复.........................................................................