XXX文化活动中心弱电系统工程设计方案2013年12月28日目录第一章智能化总体概述..................................................8一、总体要求.......................................................9二、建设目标......................................................10三、设计原则......................................................11四、设计依据......................................................12第二章分系统概述......................................................13一、综合布线系.................................................141、概述.......................................................142、系统总体要求...............................................142.1用户需求分析...............................................142.2设计概述...................................................152.3设计原则...................................................162.4设计目标...................................................173、系统结构说明...............................................183.1工作区子系统（WORKLOCATION）..............................203.2水平干线子系统（HORIZONTAL）...............................213.3管理子系统（ADMINISTRATION）...............................223.4垂直干线子系统（BACKBONE／RISER）..........................233.5设备房子系统（EQUIPMENT）..................................244、管线设计建议...............................................254.1水平线子系统的布线方案.....................................254.2干线的垂直部分.............................................264.3干线的水平通道部分.........................................274.4设备电源管线方案...........................................274.5用户设备与布线系统的连接...................................275、系统性能...................................................295.1近端串扰(NEXT)............................................295.2衰减（ATTENUATION）........................................295.3衰减串扰比(ACR)...........................................295.4等级远端串扰(ELFEXT)和等级远端串扰总和（PowerSumELFEXT）305.5综合串扰总和（PowerSumNext）.............................305.6回波损耗...................................................305.7结构返回损耗...............................................315.8传输时延差.................................................315.9均衡性.....................................................315.10主干线缆（光缆）的性能....................................316、综合布线系统测试...........................................316.1测试原因...................................................316.2测试模型...................................................326.3测试标准...................................................32二、计算机网络系统.....................................................351.项目概述....................................................351.1系统建设总体目标..........................................351.2系统建设总体设计原则......................................352.系统总体设计................................................392.1自顶向下的设计思想........................................392.2分层次的设计..............................................402.3层次性网络设计的指导原则..................................402.4网络拓扑结构..............................................402.5网络安全设计..............................................412.6网络管理设计.......................................
