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深圳市騰云科創(chuàng)供應</p><div id="xmzrjby" class="leftbox clearfix"><h1>云南全新光傳輸設備烽火STM-1 深圳市騰云科創(chuàng)供應</h1><div id="3kcur3i" class="proBig"><div id="hgiahoq" 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="lurj2cc" 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="utvs3bs" class="content"><p><span>需求數量：</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>產品關鍵詞：</span>云南全新光傳輸設備烽火STM-1,烽火</p><p><span>***更新：</span>2021-01-14 05:10:55</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ynfhoqx" 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="odfhegi" class="page-proshow02"><p class="title">詳細說明</p><div id="xmo2syf" class="box"><p><p> 在各種寬帶光纖接入網技術中，采用了SDH技術的接入網系統(tǒng)是應用**普遍的。SDH的誕生解決了由于入戶媒質的帶寬限制而跟不上骨干網和用戶業(yè)務需求的發(fā)展,而產生了用戶與**網之間的接入"瓶頸"的問題，同時提高了傳輸網上大量帶寬的利用率，云南全新光傳輸設備烽火STM-1。SDH技術自從90年代引入以來，至今已經是一種成熟、標準的技術，在骨干網中被***采用，且價格越來越低，在接入網中應用可以將SDH技術在**網中的巨大帶寬優(yōu)勢和技術優(yōu)勢帶入接入網領域，充分利用SDH同步復用、標準化的光接口、強大的網管能力、靈活網絡拓撲能力和高可靠性帶來好處，云南全新光傳輸設備烽火STM-1，在接入網的建設發(fā)展中長期受益，云南全新光傳輸設備烽火STM-1。 </p> <p> <br /> </p> <p> <br /> 例如一條鏈的兩個端點上，它是一個雙端口器件。云南全新光傳輸設備烽火STM-1</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南全新光傳輸設備烽火STM-1,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> 二纖單向通道保護環(huán)，無論從實現控制的復雜性，還是設備的開發(fā)和制作難度來說，都是各種倒換環(huán)中比較簡單的。由于它不涉及APS的協(xié)議處理過程，因而業(yè)務倒換時間也比較短。二纖雙向復用段保護環(huán)的控制邏輯和設備開發(fā)制作則是各種倒換環(huán)中比較復雜的。 </p> <p> 兼容性 </p> <p> 二纖單向通道保護環(huán)但使用已經完全預定好了的規(guī)則，由通道AIS信號來觸發(fā)倒換，與現行SDH標準完全相容，因而也容易滿足多廠家產品兼容性要求。 </p> <p> 二纖雙向復用段保護環(huán)使用APS協(xié)議控制倒換，而APS協(xié)議尚未標準化，所以復用段倒換環(huán)目前都不能滿足多廠家產品兼容性的要求。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 云南全新光傳輸設備烽火STM-1樹形網絡拓撲可看成是鏈形拓撲和星形拓撲的結合。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南全新光傳輸設備烽火STM-1,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847603603516/458709.jpg"></div><p style="text-indent:25px">同PDH相比, SDH組網的巨大的優(yōu)越性完全發(fā)揮出來了。用雙環(huán)相切、多環(huán)相切的主干網絡拓撲結構, 采用相切環(huán)時可在兩環(huán)相切的節(jié)點上采用雙環(huán)網元設備交叉保護, 克服雙環(huán)相切時節(jié)點保護可靠性差的問題。支路可根據實際需要采用鏈形、星形、樹形等結構。另外, 采用SDH 設備的光纖自愈環(huán)可實現多種形式的通道保護, 而且SDH 光纖環(huán)有較強的自愈能力。傳統(tǒng)的組網概念中,提高傳輸設備利用率是比較關鍵的,為了增加線路的占空比,在每個節(jié)點都建立了許多直接通道，致使網絡結構非常復雜。而利用SDH 組網,使用SDH提供的豐富的開銷字節(jié),就可以極大簡化網絡結構,實現強大的OAM功能,降低傳輸費用并支持新業(yè)務的發(fā)展, 這正符合了現代通信發(fā)展的目標。同PDH相比, SDH組網的巨大的優(yōu)越性完全發(fā)揮出來了。</p><p> SDH的發(fā)展趨勢 </p> <p> 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、控制、管理功能強，標準統(tǒng)一，便于傳輸更高速率的業(yè)務等優(yōu)點，能很好地適應通信網飛速發(fā)展的需要。迄今，SDH得到了空前的應用與發(fā)展。在標準化方面，已建立和即將建立的一系列建議已基本上覆蓋了SDH的方方面面。在干線網和長途網、中繼網、接入網中它開始廣泛應用。且在光纖通信、微波通信、衛(wèi)星通信中也積極地開展研究與應用。 </p> <p> <p> 近些年，點播電視、多媒體業(yè)務和其他寬帶業(yè)務如雨后春筍般紛紛出現，為SDH應用在接入網中提供了廣闊的空間。SDH技術應用于接入網的好處是：1）對于要求高可靠、高質量業(yè)務的大型企事業(yè)用戶，SDH可以提供較為理想的網絡性能和業(yè)務可靠性。2）可以將網管范圍擴展至用戶端，簡化維護工作。3）利用SDH固有靈活性，可使網絡運營者更快、更有效地提供用戶所需的長期和短期業(yè)務需求。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> 從OSI模型的觀點來看，SDH屬于其比較低層的物理層。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南全新光傳輸設備烽火STM-1,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105136719/8556415.jpg"></div><p> <p> 傳輸網上的業(yè)務按流向可分為單向業(yè)務和雙向業(yè)務。以環(huán)網為例說明單向業(yè)務和雙向業(yè)務的區(qū)別。 </p> <p> <br /> </p> <p> 若A和C之間互通業(yè)務，A到C的業(yè)務路由假定是A→B→C，若此時C到A的業(yè)務路由是C→B→A，則業(yè)務從A到C和從C到A的路由相同，稱為一致路由。 </p> <p> 若此時C到A的路由是C→D→A，那么業(yè)務從A到C和業(yè)務從C到A的路由不同，稱為分離路由。 </p> <p> 我們稱一致路由的業(yè)務為雙向業(yè)務，分離路由的業(yè)務為單向業(yè)務。常見組網的業(yè)務方向和路由。 </p> <p> 深圳市騰云科創(chuàng)信息咨詢有限公司以質量的服務、良好的信譽、雄厚的技術力量為廣大客戶提供質量服務。我司供應中興ZXMP系列產品：ZXMP S200｜ZXMP S320｜ZXMP S330｜ZXMP S325｜ZXMP S385｜ZXMP S390整機及各型號單板。供應華為Metro系列產品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機及各型號單板。供應華為OSN系列產品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機及各型號單板。供應烽火IBAS系列產品： IBAS780A｜IBAS780B供應PCM綜合接入設備：FA16接入設備｜BX10接入設備。努力奉獻，您的滿意是我們一直的追求！ </p> </p> <p> <br /> SDH有傳輸和交換的性能，它的系列設備的構成能通過功能塊的自由組合。云南全新光傳輸設備烽火STM-1</p><p style="text-indent:25px">由于采用了較先進的分插復用器（ADM）、數字交叉連接（DXC）。云南全新光傳輸設備烽火STM-1</p><p> SDH網絡的常見網元和功能 </p> <p> ADM——分/插復用器 </p> <p> 分/插復用器用于SDH傳輸網絡的轉接站點處，例如鏈的中間結點或環(huán)上結點，是SDH網上使用比較多、比較重要的一種網元，它是一個三端口的器件。 </p> <p> ADM有兩個線路端口和一個支路端口。兩個線路端口各接一側的光纜（每側收/發(fā)共兩根光纖），為了描述方便我們將其分為西（W）向、東向（E）兩個線路端口。ADM的作用是將低速支路信號交叉復用進東或西向線路上去，或從東或西側線路端口收的線路信號中拆分出低速支路信號。另外，還可將東/西向線路側的STM-N信號進行交叉連接，例如將東向STM-16中的3#STM-1與西向STM-16中的15#STM-1相連接。 </p> <p> ADM是SDH比較重要的一種網元，通過它可等效成其它網元，即能完成其它網元的功能，例如：一個ADM可等效成兩個TM。云南全新光傳輸設備烽火STM-1</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，是一家電力設備、電子元器件、電子產品、建筑材料、通信設備(中興通訊及華為技術各系列產品板件及整套設備的銷售與安裝，設備維護及板件返修，以及各設備可配置的單板，用戶電纜，中繼電纜等)、辦公設備、五金交電、化工原料（不含危險及監(jiān)控化學品）的銷售；經濟信息咨詢；經營進出口業(yè)務。的公司。騰云科創(chuàng)擁有一支經驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供SDH光傳輸設備，光端機，PCM接入設備，PTN OTN光傳輸設備。騰云科創(chuàng)繼續(xù)堅定不移地走高質量發(fā)展道路，既要實現基本面穩(wěn)定增長，又要聚焦關鍵領域，實現轉型再突破。騰云科創(chuàng)創(chuàng)始人卓龍飛，始終關注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2838013.html</p></div></div></div></div></div><div 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