【正文】 ....................................................................................................7 光纖選型 ............................................................................................................................7 光纖光纜的一般要求 ...................................................................................................................8 敷設(shè)光纜的芯數(shù) ...........................................................................................................................9 敷設(shè)光纜技術(shù) ...............................................................................................................................9第六章 傳輸設(shè)備要求 ...........................................................................................................................10 設(shè)備接口要求 .............................................................................................................................10 SDH 設(shè)備要求 ............................................................................................................................10 DXC 設(shè)備要求 ............................................................................................................................19 WDM 設(shè)備要求 ..........................................................................................................................24第七章 網(wǎng)絡(luò)性能指標(biāo) ...........................................................................................................................41 SDH 網(wǎng)絡(luò)誤碼性能指標(biāo) ............................................................................................................41 SDH 網(wǎng)絡(luò)抖動(dòng)和漂移性能 ........................................................................................................43 WDM 網(wǎng)絡(luò)性能指標(biāo) ...................................................................................................................47 可用性目標(biāo) .................................................................................................................................47第八章 SDH 網(wǎng)同步 ............................................................................................................................49 概述 .............................................................................................................................................49 SDH 網(wǎng)同步與數(shù)字同步網(wǎng)的關(guān)系 ............................................................................................49II / 96 SDH 網(wǎng)絡(luò)定時(shí)分配 ....................................................................................................................49 SDH 時(shí)鐘性能和定時(shí)方式 ........................................................................................................50 同步狀態(tài)信息（SSM） .............................................................................................................54 SDH 網(wǎng)傳送同步網(wǎng)定時(shí)的方法和性能要求 ............................................................................54 SDH 網(wǎng)同步的應(yīng)用 .....................................................................................................................56第九章 網(wǎng)絡(luò)管理 ...................................................................................................................................58 傳送網(wǎng)網(wǎng)管基本要求 ...................................................................................................................58 管理方式 .......................................................................................................................................58 傳送網(wǎng)網(wǎng)管的系統(tǒng)結(jié)構(gòu) ...............................................................................................................59 網(wǎng)管系統(tǒng)設(shè)置原則 .......................................................................................................................61 傳送網(wǎng)資源管理系統(tǒng) ...................................................................................................................61 與其他網(wǎng)管系統(tǒng)的關(guān)系 ...............................................................................................................61 管理接口要求 ...............................................................................................................................62 網(wǎng)管通信要求 ...............................................................................................................................62 網(wǎng)管功能要求 ...............................................................................................................................62第十章 網(wǎng)絡(luò)保護(hù)恢復(fù) ...........................................................................................................................72 概述 .............................................................................................................................................72 SDH 網(wǎng)絡(luò)恢復(fù)和保護(hù) .............................................................................................................72 光網(wǎng)絡(luò)的恢復(fù)和保護(hù) .................................................................................................................73 具體環(huán)境下保護(hù)方案的選擇 .....................................................................................................75 業(yè)務(wù)網(wǎng)與傳送網(wǎng)的保護(hù)關(guān)系－多重保護(hù)性 .............................................................................75附錄 I 骨干傳送網(wǎng)的具體方案 .............................................................................................................76附錄 II 多廠家策略 ...............................................................................................................................77附錄 III 傳送網(wǎng)維護(hù) ..............................................................................................................................78附錄 IV 光纖的選型 ..............................................................................................................................801 和 光纖定義 ...............................................................................................................802 各地區(qū)適用光纖 ............................................................................................................................