甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板深圳市騰云科創(chuàng)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="1.近年來，SDH作為新一代理想的傳輸體系，具有路由自動選擇能力，上下電路方便，維護(hù)、控制、管理功能強，標(biāo)準(zhǔn)統(tǒng)一，便于傳輸更高速率的業(yè)務(wù)等優(yōu)點，能很好地適應(yīng)通信網(wǎng)飛速發(fā)展的需要。SDH技術(shù)與一些先進(jìn)技術(shù)相結(jié)合，如光波分復(fù)用（WDM）、ATM"><meta name="keywords" content="甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板,烽火"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="dsumtxo" class="twoCol"><div id="mbdfmtv" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_txcp/">通信產(chǎn)品</a>?<a href="http://m.cdcfah.com/cp/third-txcp_jrsbtn/">接入設(shè)備</a>?甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板深圳市騰云科創(chuàng)供應(yīng)</p><div id="228e8ax" class="leftbox clearfix"><h1>甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板深圳市騰云科創(chuàng)供應(yīng)</h1><div id="dnacugd" class="proBig"><div id="7c3hrn8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101923829/7728521.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gfxz2an" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101923829/7728521.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ke77in3" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板,烽火</p><p><span>***更新：</span>2020-08-09 09:06:55</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="r3wqczr" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市騰云科創(chuàng)信息咨詢有限公司</a></p><p><span>聯(lián)系人：</span>夏永 </p><p><span>郵箱: </span>87993378@qq.com</p><p><span>電話: </span>16625147809</p><p><span>傳真: </span>1550_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>1550-2042477</p><p><span>地址: </span>沙井街道蠔四社區(qū)街尾塘一巷5號幸福家園A棟、B棟、C棟、D棟D棟110D</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="jqmovcj" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fp2d8k3" class="box"><p><p style="text-indent:25px">1.近年來，SDH作為新一代理想的傳輸體系，具有路由自動選擇能力，上下電路方便，維護(hù)、控制、管理功能強，標(biāo)準(zhǔn)統(tǒng)一，便于傳輸更高速率的業(yè)務(wù)等優(yōu)點，能很好地適應(yīng)通信網(wǎng)飛速發(fā)展的需要。SDH技術(shù)與一些先進(jìn)技術(shù)相結(jié)合，如光波分復(fù)用（WDM）、ATM技術(shù)、Internet技術(shù)（IP over SDH）等，使SDH網(wǎng)絡(luò)的作用越來越大。SDH已被各國列入21世紀(jì)高速通信網(wǎng)的應(yīng)用項目，是電信界公認(rèn)的數(shù)字傳輸網(wǎng)的發(fā)展方向，具有遠(yuǎn)大的商用前景。深圳市騰云科創(chuàng)信息咨詢有限公司，成立于2015年專業(yè)從事通信產(chǎn)品購銷以及施工，維護(hù)，產(chǎn)品維修，計算機系統(tǒng)集成施工。為客戶提供質(zhì)量產(chǎn)品、完善的解決方案，甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板，積極響應(yīng)配合客戶做好售后服務(wù)，甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板，在業(yè)界贏得廣大客戶認(rèn)可及一致好評，甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板。努力奉獻(xiàn)，您的滿意是我們一直的追求。標(biāo)準(zhǔn)的開放型光接口可以在基本光纜段上實現(xiàn)橫向兼容，降低了聯(lián)網(wǎng)成本。甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101923829/7728521.jpg"></div><p> SDH的產(chǎn)生背景 </p> <p> SDH技術(shù)的誕生有其必然性，隨著通信的發(fā)展，要求傳送的信息不*是話音，還有文字、數(shù)據(jù)、圖像，和視頻等。加之?dāng)?shù)字通信和計算機技術(shù)的發(fā)展，在70至80年代，陸續(xù)出現(xiàn)了T1(DS1)／E1載波系統(tǒng)(1.544／2.048Mbps)、X.25幀中繼、ISDN(綜合業(yè)務(wù)數(shù)字網(wǎng)) 和FDDI(光纖分布式數(shù)據(jù)接口)等多種網(wǎng)絡(luò)技術(shù)。隨著信息社會的到來，人們希望現(xiàn)代信息傳輸網(wǎng)絡(luò)能快速、經(jīng)濟(jì)、有效地提供各種電路和業(yè)務(wù)，而上述網(wǎng)絡(luò)技術(shù)由于其業(yè)務(wù)的單調(diào)性，擴展的復(fù)雜性，帶寬的局限性，*在原有框架內(nèi)修改或完善已無濟(jì)于事。SDH就是在這種背景下發(fā)展起來的。甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板SDH作為新一代理想的傳輸體系，具有路由自動選擇能力，上下電路方便。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105000000/3722756.jpg"></div><p> 電力網(wǎng)的發(fā)展對電力系統(tǒng)**通信網(wǎng)提出了更高的要求, 電力通信要求確保電能的生產(chǎn)、輸送、分配、消費在瞬間是同時完成的。為了保證電網(wǎng)安全、經(jīng)濟(jì)地運行, 必須配置調(diào)度、保護(hù)、遠(yuǎn)程控制等系統(tǒng)。這些系統(tǒng)的所有信息傳輸都必須由通信系統(tǒng)提供通道。由此可見, 通信在電力系統(tǒng)中的作用是非常關(guān)鍵的。隨著經(jīng)濟(jì)的發(fā)展, 電力系統(tǒng)容量急劇增加, 隨之而來的是輸電超高壓化, 接入業(yè)務(wù)多樣化。 </p> <p> 電力系統(tǒng)一旦發(fā)生故障, 如果通信不暢, 不能及時調(diào)度指揮,就會擴大***范圍, 造成大面積停電甚至系統(tǒng)瓦解,不*經(jīng)濟(jì)損失十分慘重, 而且會給社會造成嚴(yán)重影響。因此電力系統(tǒng)的通信要有非常高的可靠性。由于SDH技術(shù)具有特有的優(yōu)勢, 采用SDH技術(shù)組網(wǎng)不*適合現(xiàn)代通信發(fā)展的需要,而且特別適合電力系統(tǒng)通信的需要。SDH網(wǎng)是由不同類型的SDH網(wǎng)元設(shè)備, 如終端復(fù)用設(shè)備(TM )、再生器(REG)、分插復(fù)用設(shè)備(ADM )、數(shù)字交叉連接(DXC) 設(shè)備等, 通過光纜互連而成的, 由這些網(wǎng)元設(shè)備完成SDH 網(wǎng)的上下業(yè)務(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等傳送功能。SDH網(wǎng)的網(wǎng)絡(luò)節(jié)點(網(wǎng)元) 和傳輸線路的幾何排列就構(gòu)成了網(wǎng)絡(luò)的拓?fù)浣Y(jié)構(gòu)。網(wǎng)絡(luò)的基本拓?fù)浣Y(jié)構(gòu)大致有這樣幾種方式: 鏈形、星形、樹形、環(huán)形和網(wǎng)格形等。 </p><p> <br /> </p> <p> SDH的特點 </p> <p> （1）由于SDH有多種網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)，它所組成的網(wǎng)絡(luò)非常靈活，它能增強網(wǎng)監(jiān)，運行管理和自動配置功能，優(yōu)化了網(wǎng)絡(luò)性能，同時也使網(wǎng)絡(luò)運行靈活、安全、可靠，使網(wǎng)絡(luò)的功能非常齊全和多樣化； </p> <p> （2）SDH有傳輸和交換的性能，它的系列設(shè)備的構(gòu)成能通過功能塊的自由組合，實現(xiàn)了不同層次和各種拓?fù)浣Y(jié)構(gòu)的網(wǎng)絡(luò)，十分靈活； </p> <p> （3）SDH并不專屬于某種傳輸介質(zhì)，它可用于雙絞線、同軸電纜，但SDH用于傳輸高數(shù)據(jù)率則需用光纖。這一特點表明，SDH既適合用作干線通道，也可作支線通道。例如，我國的國家與省級有線電視干線網(wǎng)就是采用SDH，而且它也便于與光纖電纜混合網(wǎng)(HFC)相兼容。 </p> <p> （4）從OSI模型的觀點來看，SDH屬于其比較低層的物理層，并未對其高層有嚴(yán)格的限制，便于在SDH上采用各種網(wǎng)絡(luò)技術(shù)，支持ATM或IP傳輸； </p> <p> （5）SDH是嚴(yán)格同步的，從而保證了整個網(wǎng)絡(luò)穩(wěn)定可靠，誤碼少，且便于復(fù)用和調(diào)整； </p> <p> （6）標(biāo)準(zhǔn)的開放型光接口可以在基本光纜段上實現(xiàn)橫向兼容，降低了聯(lián)網(wǎng)成本。 </p> <p> <br /> </p> <p> <br /> 為滿足整個電力部門目前和將來的所有通信需求, 需要做到話音。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg"></div><p> STM-N信號幀結(jié)構(gòu)的安排應(yīng)盡可能使支路低速信號在一幀內(nèi)均勻、有規(guī)律的分布，以便于從高速信號中直接上/下低速支路信號。因此，ITU-T規(guī)定了STM-N的幀是以字節(jié)為單位的矩形塊狀結(jié)構(gòu)。 </p> <p> STM-N的信號是9行×270×N列的幀結(jié)構(gòu)。此處的N與STM-N的N相一致，取值范圍：1，4，16，64……。表示此信號由N個STM-1 信號通過字節(jié)間插復(fù)用而成。由此可知，STM-1信號的幀結(jié)構(gòu)是9行×270列的塊狀幀。并且，當(dāng)N個STM-1信號通過字節(jié)間插復(fù)用成STM-N信號時，**是將STM-1信號的列按字節(jié)間插復(fù)用，行數(shù)恒定為9行不變。 </p> <p> 我們知道，信號在線路上串行傳輸時是逐個比特（bit）地進(jìn)行的，那么這個塊狀幀是怎樣在線路上進(jìn)行傳輸?shù)哪兀?STM-N信號的傳輸也遵循按比特的傳輸方式，SDH信號幀傳輸?shù)脑瓌t是：按幀結(jié)構(gòu)的順序從左到右，從上到下逐個字節(jié)，并且逐個比特地傳輸，傳完一行再傳下一行，傳完一幀再傳下一幀。 </p> <p> <br /> 光傳輸網(wǎng)的再生中繼器有兩種，一種是純光的再生中繼器。廣西光傳輸設(shè)備SDH烽火Citrans 550F</p><p style="text-indent:25px">它能增強網(wǎng)監(jiān)，運行管理和自動配置功能，優(yōu)化了網(wǎng)絡(luò)性能。甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板</p><p> SDH網(wǎng)絡(luò)的常見網(wǎng)元和功能 </p> <p> DXC——數(shù)字交叉連接設(shè)備 </p> <p> 數(shù)字交叉連接設(shè)備完成的主要是STM-N信號的交叉連接功能，它是一個多端口器件，它實際上相當(dāng)于一個交叉矩陣，完成各個信號間的交叉連接。 </p> <p> DXC可將輸入的m路STM-N信號交叉連接到輸出的n路STM-N信號上，上圖表示有m條入光纖和n條出光纖。DXC的**是交叉連接，功能強的DXC能完成高速（例STM-16）信號在交叉矩陣內(nèi)的低級別交叉（例如VC12級別的交叉）。 </p> <p> 通常用DXCm/n來表示一個DXC的類型和性能（注m≥n），m表示可接入DXC的比較高速率等級，n表示在交叉矩陣中能夠進(jìn)行交叉連接的比較低速率級別。m越大表示DXC的承載容量越大；n越小表示DXC的交叉靈活性越大。 </p> <p> <br /> 甘肅光傳輸設(shè)備烽火2路交換式千兆以太網(wǎng)處理板</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司創(chuàng)立于2015-10-29，是一家貿(mào)易型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下[ "SDH光傳輸設(shè)備", "光端機", "PCM接入設(shè)備", "PTN OTN光傳輸設(shè)備" ]深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在通信產(chǎn)品深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為**，發(fā)揮人才優(yōu)勢，打造通信產(chǎn)品質(zhì)量品牌。公司自成立以來發(fā)展迅速，業(yè)務(wù)不斷發(fā)展壯大，年營業(yè)額度達(dá)到50-100萬元，未來我們將不斷進(jìn)行創(chuàng)新和改進(jìn)，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/857614.html</p></div></div></div></div></div><div id="78r3mt3" class="page-right twoColRt"><div id="wzgnkwy" class="box01 margin10 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