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class="home-main container clearfix"><div id="u9xp8w3" class="twoCol"><div id="2p2c28s" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應</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/">接入設備</a>?甘肅SDH光傳輸設備烽火IBAS 180 深圳市騰云科創(chuàng)供應</p><div id="ac7gpg4" class="leftbox clearfix"><h1>甘肅SDH光傳輸設備烽火IBAS 180 深圳市騰云科創(chuàng)供應</h1><div id="wcewyaz" class="proBig"><div id="zgy8n8j" 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="t97q3sc" 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="df2l92v" 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)品關鍵詞：</span>甘肅SDH光傳輸設備烽火IBAS 180,烽火</p><p><span>***更新：</span>2020-09-20 09:05:19</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="uwoqiap" 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="e3akbt4" class="page-proshow02"><p class="title">詳細說明</p><div id="3eoqnuo" class="box"><p><p> 在各種寬帶光纖接入網(wǎng)技術中，采用SDH技術的接入網(wǎng)系統(tǒng)是應用**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技術自從90年代引入以來，至今已經(jīng)是一種成熟，甘肅SDH光傳輸設備烽火IBAS 180、標準的技術，在骨干網(wǎng)中被***采用，且價格越來越低，在接入網(wǎng)中應用可以將SDH技術在**網(wǎng)中的巨大帶寬優(yōu)勢和技術優(yōu)勢帶入接入網(wǎng)領域，充分利用SDH同步復用、標準化的光接口、強大的網(wǎng)管能力，甘肅SDH光傳輸設備烽火IBAS 180，甘肅SDH光傳輸設備烽火IBAS 180、靈活網(wǎng)絡拓撲能力和高可靠性帶來好處，在接入網(wǎng)的建設發(fā)展中長期受益。 </p> <p> <br /> 星形網(wǎng)絡拓撲是將網(wǎng)中一網(wǎng)元做為中心節(jié)點設備與其他各網(wǎng)元節(jié)點相連。甘肅SDH光傳輸設備烽火IBAS 180</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅SDH光傳輸設備烽火IBAS 180,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p style="text-indent:25px">SDH出現(xiàn)以前，沿用的數(shù)字傳輸設備均屬準同步數(shù)字系（ Plesiochronous Digital Hierarchy，縮寫為PDH）。SDH技術的誕生有著其必然性。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。加之數(shù)字通信和計算機技術的發(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)務數(shù)字網(wǎng)) 和FDDI(光纖分布式數(shù)據(jù)接口)等多種網(wǎng)絡技術。隨著信息社會的到來，人們希望現(xiàn)代信息傳輸網(wǎng)絡能快速、經(jīng)濟、有效地提供各種電路和業(yè)務，而上述網(wǎng)絡技術由于其業(yè)務的單調(diào)性，擴展的復雜性，帶寬的局限性，*在原有框架內(nèi)修改或完善已無濟于事。SDH就是在這種背景下發(fā)展起來的。貴州光端機烽火IBAS 180它的作用是將支路端口的低速信號復用到線路端口的高速信號STM-N中。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅SDH光傳輸設備烽火IBAS 180,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845102001954/2472236.jpg"></div><p> SDH網(wǎng)絡的常見網(wǎng)元和功能 </p> <p> DXC——數(shù)字交叉連接設備 </p> <p> 數(shù)字交叉連接設備完成的主要是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 /> </p><p> 環(huán)網(wǎng)——自愈環(huán) </p> <p> 自愈環(huán)的分類 </p> <p> 目前環(huán)形網(wǎng)絡的拓撲結(jié)構(gòu)用得很多，因為環(huán)形網(wǎng)具有較強的自愈功能。自愈環(huán)的分類可按保護的業(yè)務級別、環(huán)上業(yè)務的方向、網(wǎng)元節(jié)點間光纖數(shù)等來劃分。 </p> <p> 按環(huán)上業(yè)務的方向可將自愈環(huán)分為單向環(huán)和雙向環(huán)兩大類；按網(wǎng)元節(jié)點間的光纖數(shù)可將自愈環(huán)劃分為兩纖環(huán)（一對收/發(fā)光纖）和四纖環(huán)（兩對收發(fā)光纖）；按保護方式還可將自愈環(huán)劃分為通道保護環(huán)和復用段保護環(huán)兩大類。 </p> <p> 對于通道保護環(huán)，業(yè)務的保護是以通道為基礎的，也就是保護的是STM-N信號中的某個VC通道，根據(jù)環(huán)上的某一個別通道信號的傳輸質(zhì)量來決定是否倒換，通常利用收端是否收到簡單的AIS信號來決定該通道是否應進行倒換。 </p> <p> 復用段倒換環(huán)是以復用段為基礎的，根據(jù)環(huán)上傳輸?shù)膹陀枚涡盘柕馁|(zhì)量決定是否倒換。倒換是由K1、K2（b1～b5）字節(jié)所攜帶的APS協(xié)議來啟動的。復用段保護倒換的觸發(fā)條件是LOF、LOS、MS-AIS告警信號。 </p> <p> 通道保護環(huán)的倒換無需APS協(xié)議，采用“并發(fā)優(yōu)收”的倒換機理---簡單。 </p> <p> 復用段保護環(huán)要使用APS協(xié)議，倒換機理---較復雜。標準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><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="甘肅SDH光傳輸設備烽火IBAS 180,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105205079/5635847.jpg"></div><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綜合接入設備介紹：FA16接入設備｜BX10接入設備 </p> <p> <br /> 環(huán)形網(wǎng)拓撲實際上是指將鏈形拓撲首尾相連。西藏光傳輸設備價格烽火PEOW</p> 以太網(wǎng)業(yè)務的接入和傳送應用,支持端口捆綁( IEEE802. 3ad) 和生成樹算法( IEEE802.1D) , 支持VLAN ( IEEE802. 1Q ) 和QoS ( IEEE802.1p ) , 可以直接提供10Mb/100Mb自適應以太網(wǎng)接口, 通過內(nèi)置2 層、3 層以太網(wǎng)交換機實現(xiàn)統(tǒng)計復用, 并且支持VC212 虛級聯(lián), 帶寬從1～ 48 個2M b平滑設置。<p style="text-indent:25px">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。甘肅SDH光傳輸設備烽火IBAS 180</p><p> <p> <p> 從技術上來看，接入層的相對帶寬需求較小，需要提供IP、TDM，可能還有ATM等綜合業(yè)務傳送。以SDH 系統(tǒng)為基礎并能夠提供IP 、ATM 傳送與處理的系統(tǒng)（包括TDM、IP與ATM接口，甚至包括IP 和ATM 交換模塊）將是解決接入層傳送的主要方法，這種方式可廉價地在一個業(yè)務提供點（POP）上提供高質(zhì)量專線、ATM 、IP 等業(yè)務的接入、傳送和保護。 </p> <p> 隨著骨干傳輸容量不斷增大，城域傳輸網(wǎng)絡的接入能力也多樣化。但以IP為主的網(wǎng)絡業(yè)務仍然是不可預知的，這需要傳輸網(wǎng)絡具有更好的自適應能力，而這種自適應能力不**是網(wǎng)絡接口或網(wǎng)絡容量的適應能力，而且要求網(wǎng)絡連接的自適應能力?？偟膩碚f，低成本、靈活快速的完成運營商端局到用戶端的業(yè)務接入和業(yè)務收斂是對未來城域網(wǎng)接入系統(tǒng)的主要需求。 </p> </p> <p> <br /> </p> </p> <p> <br /> 甘肅SDH光傳輸設備烽火IBAS 180</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司致力于通信產(chǎn)品，以科技創(chuàng)新實現(xiàn)***管理的追求。騰云科創(chuàng)擁有一支經(jīng)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)不斷開拓創(chuàng)新，追求出色，以技術為先導，以產(chǎn)品為平臺，以應用為重點，以服務為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務。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://m.cdcfah.com/cp/1353416.html</p></div></div></div></div></div><div id="jgdvxz9" class="page-right 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