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href="http://www.cdcfah.com/cp/third-txcp_jrsbtn/">接入設備</a>?新疆光端機烽火IBAS 180 深圳市騰云科創(chuàng)供應</p><div id="bnzbdkm" class="leftbox clearfix"><h1>新疆光端機烽火IBAS 180 深圳市騰云科創(chuàng)供應</h1><div id="3wdk2li" class="proBig"><div id="s3cjah7" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ekmjqhb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="znphel8" 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>新疆光端機烽火IBAS 180,烽火</p><p><span>***更新：</span>2021-01-27 04:07:18</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="uyaxulv" 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="mvxumel" class="page-proshow02"><p class="title">詳細說明</p><div id="psewykr" class="box"><p><p> STM-N信號幀的重復頻率（也就是每秒傳送的幀數(shù)）是多少呢？ITU-T規(guī)定對于任何級別的STM-N幀，幀頻都是8000幀/秒，也就是幀的周期為恒定的125μs ，幀中每個字節(jié)提供的通道速率是64Kbit/s。 </p> <p> <br /> </p> <p> <br /> </p> <p> 由于幀周期的恒定使STM-N信號的速率有其規(guī)律性，例如STM-4的傳輸數(shù)速恒定的等于STM-1信號傳輸數(shù)速的4倍，STM-16恒定等于STM-1的16倍。而PDH中的E2信號速率≠E1信號速率的4倍。 </p> <p> STM-N信號幀的重復頻率（也就是每秒傳送的幀數(shù)）是多少呢？ITU-T規(guī)定對于任何級別的STM-N幀，幀頻都是8000幀/秒，也就是幀的周期為恒定的125μs ，幀中每個字節(jié)提供的通道速率是64Kbit/s，新疆光端機烽火IBAS 180。 </p> <p> <br /> </p> <p> <br /> </p> <p> 由于幀周期的恒定使STM-N信號的速率有其規(guī)律性，例如STM-4的傳輸數(shù)速恒定的等于STM-1信號傳輸數(shù)速的4倍，新疆光端機烽火IBAS 180，STM-16恒定等于STM-1的16倍，新疆光端機烽火IBAS 180。而PDH中的E2信號速率≠E1信號速率的4倍。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。新疆光端機烽火IBAS 180</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆光端機烽火IBAS 180,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">傳輸網(wǎng)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(wǎng)為例說明單向業(yè)務和雙向業(yè)務的區(qū)別。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">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。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">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。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">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(wǎng)的業(yè)務方向和路由。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">深圳市騰云科創(chuàng)信息咨詢有限公司以質(zhì)量好的服務、良好的信譽、雄厚的技術力量為廣大客戶提供質(zhì)量好服務。我司供應中興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。供應華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機及各型號單板。供應華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機及各型號單板。供應烽火IBAS系列產(chǎn)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！</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 新疆光端機烽火IBAS 180維護，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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆光端機烽火IBAS 180,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101923829/7728521.jpg"></div><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、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、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 /> </p><p> SDH網(wǎng)絡的常見網(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、交叉連接業(yè)務、網(wǎng)絡故障自愈等。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——終端復用器 </p> <p> 終端復用器用在網(wǎng)絡的終端站點上，例如一條鏈的兩個端點上，它是一個雙端口器件。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，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用進STM-N幀（將低速信號復用到線路）上時，有一個交叉的功能，例如：可將支路的一個STM-1信號復用進線路上的STM-16信號中的任意位置上，也就是指復用在1~16個STM-1的任一個位置上。將支路的2Mbit/s信號可復用到一個STM-1中63個VC12的任一個位置上去。對于華為設備，TM的線路端口（光口）一般以西向端口默認表示的。樹形網(wǎng)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="新疆光端機烽火IBAS 180,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/9165528.jpg"></div><p> 隨著科學技術的不斷發(fā)展,各行各業(yè)為了滿足自身內(nèi)部的需求，將會建設更多，更復雜的**網(wǎng)絡，這些網(wǎng)絡必將承擔更多的任務。 </p> <p> 對于大多數(shù)專網(wǎng)，在目前的技術條件下，則應利用公眾網(wǎng)實現(xiàn)企業(yè)或專業(yè)部門的通信需求。利用公眾網(wǎng)滿足專業(yè)部門的需求具有各種不同的方式。如租用公眾網(wǎng)的光芯或傳輸容量，配置自己的交換設備。這就免除了其困難的光纜輔設工程，比較適用于具有大規(guī)模用戶的企業(yè)。又如委托公眾網(wǎng)**為本企業(yè)或部門使用的虛擬**網(wǎng)，它所提供的功能和容量完全按照用戶的要求進行，這就免除了全部的投資風險和維護工作，應用機動靈活，使用部門可以專心致力于其本行業(yè)的業(yè)務工作。 </p> <p> <br /> 為了保證電網(wǎng)安全、經(jīng)濟地運行, 必須配置調(diào)度、保護、遠程控制等系統(tǒng)。云南代理光傳輸設備烽火CKU</p><p style="text-indent:25px">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。新疆光端機烽火IBAS 180</p><p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 基本的網(wǎng)絡拓撲結構</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> SDH網(wǎng)是由SDH網(wǎng)元設備通過光纜互連而成的，網(wǎng)絡節(jié)點設備（網(wǎng)元）和傳輸線路的幾何排列就構成了網(wǎng)絡的拓撲結構。網(wǎng)絡的有效性、可靠性和經(jīng)濟性在很大程度上與其拓撲結構有關。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 網(wǎng)絡拓撲的基本結構有鏈形、星形、樹形、環(huán)形和網(wǎng)孔形。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 鏈形網(wǎng)：</span><span style="font-family:"Microsoft YaHei";font-size:16px;">鏈形網(wǎng)絡拓撲是將網(wǎng)中的所有節(jié)點一一串聯(lián)，而首尾兩端開放。這種拓撲的特點是較經(jīng)濟，在SDH網(wǎng)的早期用得較多，主要用于專網(wǎng)如鐵路網(wǎng)中。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 星形網(wǎng)：</span><span style="font-family:"Microsoft YaHei";font-size:16px;">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，其他各網(wǎng)元節(jié)點之間互不相連，網(wǎng)元節(jié)點的業(yè)務都要經(jīng)過這個特殊節(jié)點轉接。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 新疆光端機烽火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)作為電力設備、電子元器件、電子產(chǎn)品、建筑材料、通信設備(中興通訊及華為技術各系列產(chǎn)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(jīng)濟信息咨詢；經(jīng)營進出口業(yè)務。的企業(yè)之一，為客戶提供良好的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)致力于把技術上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗。騰云科創(chuàng)始終關注通信產(chǎn)品市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3028314.html</p></div></div></div></div></div><div id="3nkh77h" class="page-right twoColRt"><div id="ynkryfh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uoqsugi" class="recomPic likePro"><a 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