【正文】 ................................88 系統(tǒng)設(shè)計說明 .........................................................................................................89 點(diǎn)位設(shè)計 .........................................................................................................89 功能介紹 .................................................................................................................89第 19 章 背景音樂及應(yīng)急廣播系統(tǒng) .....................................................................................91 系統(tǒng)概述 .................................................................................................................91 需求分析 .................................................................................................................91 系統(tǒng)設(shè)計說明 .........................................................................................................92 系統(tǒng)拓?fù)鋱D（根據(jù)項(xiàng)目實(shí)際情況繪制，采用 visio 或 PPT） 。 ...............................................14第 2 章 綜合布線系統(tǒng) .........................................................................................................15 系統(tǒng)概述 .................................................................................................................15 需求分析 .................................................................................................................15 總體設(shè)計 .................................................................................................................16 布線拓?fù)浣Y(jié)構(gòu) .................................................................................................16 機(jī)房位置、規(guī)模 .............................................................................................16 系統(tǒng)設(shè)計說明 .........................................................................................................17 工作區(qū)子系統(tǒng) .................................................................................................17 水平子系統(tǒng) .....................................................................................................18 垂直子系統(tǒng) .....................................................................................................18 管理區(qū)子系統(tǒng) .................................................................................................18 設(shè)備區(qū)子系統(tǒng) .................................................................................................18 建筑群子系統(tǒng) .................................................................................................18 系統(tǒng)功能 .................................................................................................................18第 3 章 計算機(jī)網(wǎng)絡(luò)系統(tǒng) .....................................................................................................20 系統(tǒng)概述 .................................................................................................................20 需求分析 .................................................................................................................20 總體設(shè)計 .................................................................................................................21 網(wǎng)絡(luò)拓?fù)鋱D .....................................................................................................21 系統(tǒng)架構(gòu)設(shè)計 .................................................................................................21 系統(tǒng)設(shè)計說明 .........................................................................................................22 核心交換機(jī)設(shè)計 .............................................................................................22 匯聚交換機(jī)設(shè)計 .............................................................................................22 接入層交換機(jī)設(shè)計 .........................................................................................22 系統(tǒng)功能 .................................................................................................................23第 4 章 無線網(wǎng)絡(luò)覆蓋系統(tǒng) .................................................................................................24行政辦公弱電智能化系統(tǒng)工程初步設(shè)計方案3 系統(tǒng)概述 .................................................................................................................24 需求分析 .................................................................................................................24 總體設(shè)計 .................................................................................................................25 系統(tǒng)拓?fù)鋱D .....................................................................................................25 系統(tǒng)架構(gòu)設(shè)計 .................................................................................................25 系統(tǒng)設(shè)計說明 .........................................................................................................26 無線組網(wǎng) .........................................................................................................26 無線安全 .........................................................................................................26 天線選擇和布放 .............................................................................................26 頻率規(guī)劃與負(fù)載均衡 .....................................................................................27 網(wǎng)絡(luò)管理 .........................................................................................................28 衰減理論計算公式 .........................................................................................29 系統(tǒng)功能 .................................................................................................................29第 5 章 程控電話交換機(jī)系統(tǒng) .............................................................................................30 系統(tǒng)概述 .................................................................................................................30 需求分析 .................................................................................................................30 總體設(shè)計 .................................................................................................................30 系統(tǒng)設(shè)計說明 .................................................................