发布时间 : 星期五 文章SDH主站及各变电站SDH分站建设系统工程更新完毕开始阅读3bca872aed630b1c59eeb52c
SDH主站及各变电站SDH
分站
建设系统工程
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目 录
1．前言·················································· 5
一． SDH 介绍··········································· 5 1.1 SDH概念··········································· 5 1.2 SDH的产生背景····································· 6 1.3 SDH与PDH的比较 ·································· 8 1.4 SDH的特点········································· 9 1.5 SDH的帧结构······································· 11 1.6 复用原理 ········································· 12 2. SDH的应用···········································12 3. SDH的发展趋势 ····································· 14 4.工程概况············································ 16 二．主要工程量·········································· 16 三．工程特点············································ 17
四．工程涉及配套部分介绍······························· 17 1.1 机房的工程范围······································ 17 1.2 机房设计及技术要求·································· 18
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1.3 机房空调············································ 20 1.4 机房供配电柜设计标准································ 21 1.5 机房供电配线要求··································· 22 1.6 UPS 设备技术要求···································· 22 1.7 照明系统要求······································· 23 1.8 接地，静电防范及防雷系统要求······················· 24 1.9 机房防雷 ·········································· 25 2.1 系统布线 ·········································· 26 3.1 其他··············································· 28 4 六类线··············································· 29 4.1十字骨架6类非屏蔽双绞线特点······················· 30 4.2 一字骨架和狮子骨架6类非屏蔽双绞线新能对比··········30
五 涉及设备介绍········································· 32 1 optix 2500智能光传输系统······························ 32 1.1 产品特点············································ 32 1.2 系统结构············································ 32 1.3 机柜、子架与单板···································· 33 1.4 SDH单元—特征······································ 35 1.5 PDH 单元—告警、性能································ 37 1.6 以太网单元·········································· 38 1.7 以太网单板简介······································ 40
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1.8 ATM 单板简介········································ 42 1.9 风扇单元············································ 43 2.0 恒压空追模块········································ 43 2.1 产品介绍············································ 43 2.2 产品特点············································ 43 2.3 产品用途············································ 44 2.4 产品总类············································ 44 2.5 模块的使用方法······································ 46 3 高频开关电源的原理及其特点···························· 50 3.1 该电源特点·········································· 51 3.2 智能化高频开关电源住监控模块结构···················· 52 3.3 监控模块的工作原理及组成···························· 52 3.4 控制器的主要功能···································· 53 3.5 监控系统软件的实现·································· 54
六、 施工任务安排及施工方法····························· 57
七、 主要施工方法及保护措施····························· 57
八、竣工技术文件编制···································· 58
九、说明··············································· 58
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