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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hldvcjl" 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>廣西光傳輸設備價格烽火ASON 780A,烽火</p><p><span>***更新：</span>2020-09-20 03:06:39</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="cbogdkm" 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="8tl88yu" class="page-proshow02"><p class="title">詳細說明</p><div id="s8hjfhd" class="box"><p><p> 在各種寬帶光纖接入網(wǎng)技術中，廣西光傳輸設備價格烽火ASON 780A，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，廣西光傳輸設備價格烽火ASON 780A，同時提高了傳輸網(wǎng)上大量帶寬的利用率，廣西光傳輸設備價格烽火ASON 780A。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 /> 目前環(huán)形網(wǎng)絡的拓撲結構用得很多，因為環(huán)形網(wǎng)具有較強的自愈功能。廣西光傳輸設備價格烽火ASON 780A</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西光傳輸設備價格烽火ASON 780A,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847797656250/1749392.jpg"></div><p> <p> 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。 </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(wǎng)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(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！ </p> </p> <p> <br /> 重慶SDH光端機烽火NMU由此可見, 通信在電力系統(tǒng)中的作用是非常關鍵的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西光傳輸設備價格烽火ASON 780A,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg"></div><p> SDH網(wǎng)絡的常見網(wǎng)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(wǎng)絡的轉接站點處，例如鏈的中間結點或環(huán)上結點，是SDH網(wǎng)上使用**多、**重要的一種網(wǎng)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**重要的一種網(wǎng)元，通過它可等效成其它網(wǎng)元，即能完成其它網(wǎng)元的功能，例如：一個ADM可等效成兩個TM。 </p><p> 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。 </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(wǎng)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(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！為了實時監(jiān)測貨物（打包的低速信號）在傳輸過程中是否有損壞。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="廣西光傳輸設備價格烽火ASON 780A,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.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)濟地運行, 必須配置調(diào)度、保護、遠程控制等系統(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)中的作用是非常關鍵的。隨著經(jīng)濟的發(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,不僅經(jīng)濟損失十分慘重, 而且會給社會造成嚴重影響。因此電力系統(tǒng)的通信要有非常高的可靠性。由于SDH技術具有特有的優(yōu)勢, 采用SDH技術組網(wǎng)不僅適合現(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)元設備, 如終端復用設備(TM )、再生器(REG)、分插復用設備(ADM )、數(shù)字交叉連接(DXC) 設備等, 通過光纜互連而成的, 由這些網(wǎng)元設備完成SDH 網(wǎng)的上下業(yè)務、交叉連接業(yè)務、網(wǎng)絡故障自愈等傳送功能。SDH網(wǎng)的網(wǎng)絡節(jié)點(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)絡的基本拓撲結構大致有這樣幾種方式: 鏈形、星形、樹形、環(huán)形和網(wǎng)格形等。段，相當于一條大的傳輸通道。重慶SDH光端機烽火NMU</p><p style="text-indent:25px">信息凈負荷位于STM-N幀中第1到第9行。廣西光傳輸設備價格烽火ASON 780A</p><p> SDH的概念 </p> <p> SDH[1]（Synchronous Digital Hierarchy，同步數(shù)字系列）光端機容量較大，一般是16E1到4032E1。 SDH是一種將復接、線路傳輸及交換功能融為一體、并由統(tǒng)一網(wǎng)管系統(tǒng)操作的綜合信息傳送網(wǎng)絡，是美國貝爾通信技術研究所提出來的同步光網(wǎng)絡（SONET）。國際電話電報咨詢**會（CCITT）（現(xiàn)ITU-T）于1988年接受了SONET 概念并重新命名為SDH，使其成為不僅適用于光纖也適用于微波和衛(wèi)星傳輸?shù)耐ㄓ眉夹g體制。它可實現(xiàn)網(wǎng)絡有效管理、實時業(yè)務監(jiān)控、動態(tài)網(wǎng)絡維護、不同廠商設備間的互通等多項功能，能**提高網(wǎng)絡資源利用率、降低管理及維護費用、實現(xiàn)靈活可靠和***的網(wǎng)絡運行與維護，因此是當今世界信息領域在傳輸技術方面的發(fā)展和應用的熱點，受到人們的***重視。 </p> <p> <br /> 廣西光傳輸設備價格烽火ASON 780A</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司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。公司自成立以來，以質量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下SDH光傳輸設備，光端機，PCM接入設備，PTN OTN光傳輸設備深受客戶的喜愛。公司將不斷增強企業(yè)重點競爭力，努力學習行業(yè)知識，遵守行業(yè)規(guī)范，植根于通信產(chǎn)品行業(yè)的發(fā)展。騰云科創(chuàng)憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務、眾多的成功案例積累起來的聲譽和口碑，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/1348104.html</p></div></div></div></div></div><div id="odp8nj8" class="page-right twoColRt"><div id="xrtacoq" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3m2m7df" class="recomPic likePro"><a href="http://m.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" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="cwi388x" class="recomPic likePro"><a 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