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2024-09-12 17:20本頁(yè)面
【正文】 Research of Fiber Optic Network Protection System 課程： 現(xiàn)代傳輸技術(shù) 學(xué)院：電信學(xué)院 專(zhuān)業(yè)：通信工程 班 級(jí)： 通信 1003 班 蘭州交通大學(xué)課程設(shè)計(jì) 摘要 當(dāng)前，光纜傳輸網(wǎng)已成為我國(guó)通信網(wǎng)和國(guó)民經(jīng)濟(jì)信息基礎(chǔ)設(shè)施的主要部分，是公眾電話網(wǎng)、數(shù)字傳輸網(wǎng)和增值網(wǎng)各種網(wǎng)絡(luò)的基礎(chǔ)。光纜通信網(wǎng)絡(luò)一旦阻斷，將對(duì)社會(huì)造成很壞的影響，給企業(yè)帶來(lái)極大的經(jīng)濟(jì)損失。 實(shí)現(xiàn)網(wǎng)絡(luò)生存性一般有兩類(lèi)方法：網(wǎng)絡(luò)保護(hù)和網(wǎng)絡(luò)恢復(fù)。在原已建成的環(huán)狀 SDH 網(wǎng)中雖然已具備自愈功能，但是因?yàn)槠鋵儆谶壿嬄酚傻那袚Q，而非物理路由的實(shí)際切換，通信量會(huì)累加到另一個(gè)方向。 關(guān)鍵詞 ： SDH； 光纖線路自動(dòng)保護(hù)切換； OPL。s munications work and the main part of the information infrastructure of the national economy, is the public telephone work, transmission work, and various work based valueadded work. Optical cable munication work once the block will have a bad effect on society, and brought enormous economic losses to the enterprise. Therefore, quality of cable work and circuit protection and recovery issues are cause quality of cable work and circuit protection and recovery issues are cause for concern, into a market under the environment of open petition between work operators in the peting for users important focus. In general there are two types of work survivability: work protection and work recovery. In general working in telemunication works, often as a first line of defense to protect mechanism, dealing with optical cables, such as blocking a public failure. Although in the original loop SDH work that has been built with selfhealing features, but because it is part of the logical Routing switches, rather than the actual physical routing switches, traffic can add up to another direction. Fiberoptic line autoswitch protection technology can bring the work to the actual switch, use the recovery mechanism as a second line of defense against workwide fault and failure. Key words: SDH。OPL. 蘭州交通大學(xué)課程設(shè)計(jì) 目錄 １ 概要 ................................................................................................ 1 １ .１ 光纖線路保護(hù)切換的原理和方式 ......................................... 1 １ .２ 系統(tǒng)運(yùn)用對(duì)提升通信網(wǎng)絡(luò)應(yīng)用價(jià)值的意義 ......................... 1 １ .３ 實(shí)際運(yùn)用中主注意的問(wèn)題 ..................................................... 2 ２ 光路保護(hù)系統(tǒng) ................................................................................ 3 ２ .１ ＳＤＨ網(wǎng)路保護(hù) .................................................................... 3 ２ .２ ＯＰＬ干線保護(hù) .................................................................... 7 ２ .３ 其他幾種光路保護(hù)手段 ......................................................... 8 ３ 光路保護(hù)系統(tǒng)的應(yīng)用 .................................................................. 10 ３ .１ 光路保護(hù)系統(tǒng)的優(yōu)缺點(diǎn)分析及應(yīng)用環(huán)境 ........................... 10 ３ .２ 光路保護(hù)技術(shù)的應(yīng)用 ................................
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