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深圳市騰云科創(chuàng)供應</p><div id="pyzfryq" class="leftbox clearfix"><h1>四川SDH光傳輸設備烽火STM-64 深圳市騰云科創(chuàng)供應</h1><div id="t3i9h3l" class="proBig"><div id="lzbtvmj" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847603603516/458709.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="vef383g" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847603603516/458709.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="h3gparn" 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>四川SDH光傳輸設備烽火STM-64,烽火</p><p><span>***更新：</span>2021-02-02 00:16:04</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="d3hwdfr" 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="p8j33ce" class="page-proshow02"><p class="title">詳細說明</p><div id="3uizfm2" class="box"><p><p style="text-indent:25px"><span style="font-size:16px;font-family:"Microsoft YaHei";"> </span><span style="font-size:16px;font-family:"Microsoft YaHei";">SDH網(wǎng)絡是整個數(shù)字網(wǎng)的一部分，它的定時基準應是這個數(shù)字網(wǎng)的統(tǒng)一的定時基準。時鐘同步，就是使通信網(wǎng)內(nèi)所有節(jié)點的時鐘頻率和相位都控制在預先確定的容差范圍內(nèi)，確保網(wǎng)內(nèi)各傳輸或交換節(jié)點的全部數(shù)字流正確有效地傳輸或交換，時鐘不同步，會在緩沖器中產(chǎn)生信息比特的溢出或取空，導致數(shù)字流的滑動損傷，造成數(shù)據(jù)出錯，影響正常運行，四川SDH光傳輸設備烽火STM-64，四川SDH光傳輸設備烽火STM-64。電流差動保護的關鍵是線路兩側保護之間的電流數(shù)據(jù)交換，當復接數(shù)字通信設備時，同步時鐘的提取方式是一個非常重要的問題。本期新增節(jié)點均從線路側提取同步信號，四川SDH光傳輸設備烽火STM-64。</span>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。四川SDH光傳輸設備烽火STM-64</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川SDH光傳輸設備烽火STM-64,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847603603516/458709.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 在各種寬帶光纖接入網(wǎng)技術中，采用了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。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 甘肅銷售光傳輸設備烽火千兆以太網(wǎng)出線卡電力系統(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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川SDH光傳輸設備烽火STM-64,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/9165528.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">電力通信專門用途網(wǎng)的特點</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">隨著網(wǎng)絡傳輸技術的不斷發(fā)展, 電力系統(tǒng)中基于寬帶數(shù)據(jù)網(wǎng)的應用也越來越多, 如圖像監(jiān)控、實時數(shù)據(jù)采集、實時控制、各種管理信息系統(tǒng)(MIS) 等,原先采用窄帶數(shù)據(jù)網(wǎng)承載的業(yè)務也逐步轉移到寬帶數(shù)據(jù)網(wǎng)上。除此之外, 電力通信專門用途網(wǎng)本身還具有一些特點:</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(1) 電力通信網(wǎng)基本上應以光纖通信為主, 以微波通信作備份或補充。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(2) 光纖網(wǎng)絡拓撲結構復雜, 整個網(wǎng)絡節(jié)點數(shù)非常多, 需要傳輸設備有很強的組網(wǎng)和網(wǎng)絡管理能力,且對設備的可靠性要求非常高。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(3) 電力系統(tǒng)所敷設光纜通常芯數(shù)較少, 考慮到今后可能作為電信運營商, 應盡量節(jié)約光纖通信系統(tǒng)所占用的光纖芯數(shù)。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(4) 為滿足整個電力部門目前和將來的所有通信需求, 需要做到話音、視頻和數(shù)據(jù)多網(wǎng)融合。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（5) 目前的業(yè)務接口需求主要有POTS、2W/4W、E&M、V.24、V.35、ISDN、E1、E3/T 3、10Mb/100Mb以太網(wǎng)接口等, 未來的業(yè)務需求大,多基于寬帶數(shù)據(jù)網(wǎng)。采用基于SDH 和MSTP, 可使調(diào)度網(wǎng)實現(xiàn)計算機網(wǎng)絡的遠程互聯(lián), 在SDH平臺上實現(xiàn)以太網(wǎng)業(yè)務傳送功能, 從而實現(xiàn)二網(wǎng)合一, 且極大地降低網(wǎng)絡建設成本。</span> </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> 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(zhì)量的服務、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！ 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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川SDH光傳輸設備烽火STM-64,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105205079/5635847.jpg"></div><p> SDH的應用 </p> <p> 由于以上所述的SDH的眾多特性，使其在廣域網(wǎng)領域和專門用途網(wǎng)領域得到了巨大的發(fā)展。中國移動、電信、聯(lián)通、廣電等電信運營商都已經(jīng)大規(guī)模建設了基于SDH的骨干光傳輸網(wǎng)絡。利用大容量的SDH環(huán)路承載IP業(yè)務、ATM業(yè)務或直接以租用電路的方式出租給企、事業(yè)單位。而一些大型的專門用途網(wǎng)絡也采用了SDH技術，架設系統(tǒng)內(nèi)部的SDH光環(huán)路，以承載各種業(yè)務。比如電力系統(tǒng)，就利用SDH環(huán)路承載內(nèi)部的數(shù)據(jù)、遠控、視頻、語音等業(yè)務。 </p> <p> 而對于組網(wǎng)更加迫切、而又沒有可能架設專門用途SDH環(huán)路的單位，很多都采用了租用電信運營商電路的方式。由于SDH基于物理層的特點，單位可在租用電路上承載各種業(yè)務而不受傳輸?shù)南拗?。承載方式有很多種，可以是利用基于TDM技術的綜合復用設備實現(xiàn)多業(yè)務的復用，也可以利用基于IP的設備實現(xiàn)多業(yè)務的分組交換。SDH技術可真正實現(xiàn)租用電路的帶寬保證，安全性方面也優(yōu)于VPN等方式。在和對安全性非常注重的企業(yè)，SDH租用線路得到了***的應用。一般來說，SDH可提供E1、E3、STM-1或STM-4等接口，完全可以滿足各種帶寬要求。同時在價格方面，也已經(jīng)為大部分單位所接受。在進行字節(jié)間插復用過程中，各幀的信息凈負荷和指針字節(jié)按原值進行字節(jié)間插復用。甘肅銷售光傳輸設備烽火千兆以太網(wǎng)出線卡</p><p style="text-indent:25px">段，相當于一條大的傳輸通道。四川SDH光傳輸設備烽火STM-64</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。四川SDH光傳輸設備烽火STM-64</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司是一家電力設備、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。的公司，是一家集研發(fā)、設計、生產(chǎn)和銷售為一體的專業(yè)化公司。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)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)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 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