甘肅光傳輸設(shè)備SDH烽火NMU 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="SDH網(wǎng)絡(luò)的常見網(wǎng)元和功能SDH傳輸網(wǎng)是由不同類型的網(wǎng)元通過光纜線路的連接組成的，通過不同的網(wǎng)元完成SDH網(wǎng)的傳送功能：上/下業(yè)務(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等，甘肅光傳輸設(shè)備SDH烽火NMU。下面我們講述SDH網(wǎng)中常見網(wǎng)元的特點和基本功能"><meta name="keywords" content="甘肅光傳輸設(shè)備SDH烽火NMU,烽火"><link rel="canonical" href="http://www.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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深圳市騰云科創(chuàng)供應(yīng)</p><div id="8hwy8jp" class="leftbox clearfix"><h1>甘肅光傳輸設(shè)備SDH烽火NMU 深圳市騰云科創(chuàng)供應(yīng)</h1><div id="gr8zwyz" class="proBig"><div id="8q38ctj" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qtf2fhu" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cpl2myu" 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SDH烽火NMU,烽火</p><p><span>***更新：</span>2021-02-02 06:05:47</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3mdpg7n" 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="3hnzw9e" class="page-proshow02"><p class="title">詳細說明</p><div id="ckqxonj" class="box"><p><p> SDH網(wǎng)絡(luò)的常見網(wǎng)元和功能 </p> <p> SDH傳輸網(wǎng)是由不同類型的網(wǎng)元通過光纜線路的連接組成的，通過不同的網(wǎng)元完成SDH網(wǎng)的傳送功能：上/下業(yè)務(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等，甘肅光傳輸設(shè)備SDH烽火NMU。下面我們講述SDH網(wǎng)中常見網(wǎng)元的特點和基本功能。 </p> <p> TM——終端復(fù)用器 </p> <p> 終端復(fù)用器用在網(wǎng)絡(luò)的終端站點上，例如一條鏈的兩個端點上，它是一個雙端口器件，甘肅光傳輸設(shè)備SDH烽火NMU。它的作用是將支路端口的低速信號復(fù)用到線路端口的高速信號STM-N中，或從STM-N的信號中分出低速支路信號。請注意它的線路端口輸入/輸出一路STM-N信號，而支路端口卻可以輸出/輸入多路低速支路信號。在將低速支路信號復(fù)用進STM-N幀（將低速信號復(fù)用到線路）上時，有一個交叉的功能，例如：可將支路的一個STM-1信號復(fù)用進線路上的STM-16信號中的任意位置上，甘肅光傳輸設(shè)備SDH烽火NMU，也就是指復(fù)用在1~16個STM-1的任一個位置上。將支路的2Mbit/s信號可復(fù)用到一個STM-1中63個VC12的任一個位置上去。對于華為設(shè)備，TM的線路端口（光口）一般以西向端口默認表示的。由于采用了較先進的分插復(fù)用器（ADM）、數(shù)字交叉連接（DXC）。甘肅光傳輸設(shè)備SDH烽火NMU</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SDH烽火NMU,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">SDH的缺點，</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 1，頻帶利用率低。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 可靠性和有效性是矛盾的，增加了有效性必將降低可靠性，增加了可靠性也會相應(yīng)的使有效性降低。例如，收音機的選擇性增加，可選的電臺就增多，這樣就提高了選擇性。但是，由于這時頻帶相應(yīng)的會變窄，必然會使音質(zhì)下降，也就降低了可靠性。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 2，指針調(diào)整機理復(fù)雜。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> SDH體制可以從高速信號（STM-1）中直接下低速信號（例如2Mbit/s），省去了多級復(fù)用，解復(fù)用過程，這種功能的實現(xiàn)是通過指針機理來完成的。但是，指針功能的實現(xiàn)增加了系統(tǒng)的復(fù)雜性。比較重要的是系統(tǒng)產(chǎn)生SDH的一種特有抖動—由指針調(diào)整引起的結(jié)合抖動。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 3，軟件的大量使用對系統(tǒng)的安全性的影響。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">在***無處不在的***，軟件的的大量使用，很容易受到破壞，加上人為操作，軟件故障，對系統(tǒng)的影響也是致命的。</span> </p> <p> <br /> </p> <p> <br /> 海南光傳輸設(shè)備烽火STM-1在進行字節(jié)間插復(fù)用過程中，各幀的信息凈負荷和指針字節(jié)按原值進行字節(jié)間插復(fù)用。</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SDH烽火NMU,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101923829/7728521.jpg"></div><p style="text-indent:25px">凈負荷區(qū)用于存放真正用于信息業(yè)務(wù)的比特和少量的用于通道維護管理的通道開銷字節(jié)；管理單元指針用來指示凈負荷區(qū)內(nèi)的信息首字節(jié)在STM－N幀內(nèi)的準(zhǔn)確位置以便接收時能正確分離凈負荷。SDH的幀傳輸時按由左到右、由上到下的順序排成串型碼流依次傳輸，每幀傳輸時間為125μs，每秒傳輸1／125×1000000幀，對STM－1而言每幀字節(jié)為8bit×（9×270×1）=19440bit，則STM－1的傳輸速率為19440×8000=155.520Mbit／s；而STM－4的傳輸速率為4×155.520Mbit／s=622.080Mbit／s；STM－16的傳輸速率為16×155.520（或4×622.080）=2488.320Mbit／s。</p><p> 在各種寬帶光纖接入網(wǎng)技術(shù)中，采用SDH技術(shù)的接入網(wǎng)系統(tǒng)是應(yīng)用比較普遍的。SDH的誕生解決了由于入戶媒質(zhì)的帶寬限制而跟不上骨干網(wǎng)和用戶業(yè)務(wù)需求的發(fā)展,而產(chǎn)生了用戶與**網(wǎng)之間的接入"瓶頸"的問題，同時提高了傳輸網(wǎng)上大量帶寬的利用率。SDH技術(shù)自從90年代引入以來，至今已經(jīng)是一種成熟、標(biāo)準(zhǔn)的技術(shù)，在骨干網(wǎng)中被***采用，且價格越來越低，在接入網(wǎng)中應(yīng)用可以將SDH技術(shù)在**網(wǎng)中的巨大帶寬優(yōu)勢和技術(shù)優(yōu)勢帶入接入網(wǎng)領(lǐng)域，充分利用SDH同步復(fù)用、標(biāo)準(zhǔn)化的光接口、強大的網(wǎng)管能力、靈活網(wǎng)絡(luò)拓撲能力和高可靠性帶來好處，在接入網(wǎng)的建設(shè)發(fā)展中長期受益。 </p> <p> <br /> SDH并不專屬于某種傳輸介質(zhì)，它可用于雙絞線、同軸電纜。</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SDH烽火NMU,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105205079/5635847.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">SDH網(wǎng)絡(luò)的常見網(wǎng)元和功能</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">DXC——數(shù)字交叉連接設(shè)備</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">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。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">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）。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">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。</span> </p> <p> <br /> </p> <p> <br /> 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。四川SDH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">隨著網(wǎng)絡(luò)傳輸技術(shù)的不斷發(fā)展, 電力系統(tǒng)中基于寬帶數(shù)據(jù)網(wǎng)的應(yīng)用也越來越多。甘肅光傳輸設(shè)備SDH烽火NMU</p><p> 近些年，點播電視、多媒體業(yè)務(wù)和其他寬帶業(yè)務(wù)如雨后春筍般紛紛出現(xiàn)，為SDH應(yīng)用在接入網(wǎng)中提供了廣闊的空間。SDH技術(shù)應(yīng)用于接入網(wǎng)的好處是：1）對于要求高可靠、高質(zhì)量業(yè)務(wù)的大型企事業(yè)用戶，SDH可以提供較為理想的網(wǎng)絡(luò)性能和業(yè)務(wù)可靠性。2）可以將網(wǎng)管范圍擴展至用戶端，簡化維護工作。3）利用SDH固有靈活性，可使網(wǎng)絡(luò)運營者更快、更有效地提供用戶所需的長期和短期業(yè)務(wù)需求。 </p> <p> <br /> </p> <p> <br /> </p> <p> 深圳騰云科創(chuàng)信息咨詢有限公司主營中興ZXMP系列產(chǎn)品：ZXMP S200｜ZXMP S320｜ZXMP S330｜ZXMP S325｜ZXMP S385｜ZXMP S390整機及各型號單板。華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機及各型號單板。華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機及各型號單板。烽火IBAS系列產(chǎn)品： IBAS780A｜IBAS780B， PCM綜合接入設(shè)備介紹：FA16接入設(shè)備｜BX10接入設(shè)備甘肅光傳輸設(shè)備SDH烽火NMU</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司總部位于沙井街道蠔四社區(qū)街尾塘一巷5號幸福家園A棟、B棟、C棟、D棟D棟110D，是一家電力設(shè)備、電子元器件、電子產(chǎn)品、建筑材料、通信設(shè)備(中興通訊及華為技術(shù)各系列產(chǎn)品板件及整套設(shè)備的銷售與安裝，設(shè)備維護及板件返修，以及各設(shè)備可配置的單板，用戶電纜，中繼電纜等)、辦公設(shè)備、五金交電、化工原料（不含危險及監(jiān)控化學(xué)品）的銷售；經(jīng)濟信息咨詢；經(jīng)營進出口業(yè)務(wù)。的公司。騰云科創(chuàng)深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的SDH光傳輸設(shè)備，光端機，PCM接入設(shè)備，PTN OTN光傳輸設(shè)備。騰云科創(chuàng)始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。騰云科創(chuàng)始終關(guān)注通信產(chǎn)品行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3122121.html</p></div></div></div></div></div><div id="w3yfw9z" class="page-right twoColRt"><div id="3vhtudp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3zqx3hh" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" 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