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href="http://www.cdcfah.com/cp/second-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/third-txcp_jrsbtn/">接入設(shè)備</a>?青海全新光傳輸設(shè)備烽火ASON 780B 深圳市騰云科創(chuàng)供應(yīng)</p><div id="ptq8fpw" class="leftbox clearfix"><h1>青海全新光傳輸設(shè)備烽火ASON 780B 深圳市騰云科創(chuàng)供應(yīng)</h1><div id="nwy8asu" class="proBig"><div id="32v8nkh" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="sr8nprd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qjgiz3s" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(guān)鍵詞：</span>青海全新光傳輸設(shè)備烽火ASON 780B,烽火</p><p><span>***更新：</span>2021-01-26 00:17:13</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="3uqsely" 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(jī): </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(hào)幸福家園A棟、B棟、C棟、D棟D棟110D</p><p>[當(dāng)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="dm7dvxe" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="hvskmjv" class="box"><p><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">電力通信專門用途網(wǎng)的特點(diǎn)</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">隨著網(wǎng)絡(luò)傳輸技術(shù)的不斷發(fā)展, 電力系統(tǒng)中基于寬帶數(shù)據(jù)網(wǎng)的應(yīng)用也越來(lái)越多, 如圖像監(jiān)控、實(shí)時(shí)數(shù)據(jù)采集、實(shí)時(shí)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(wù)也逐步轉(zhuǎn)移到寬帶數(shù)據(jù)網(wǎng)上。除此之外，青海全新光傳輸設(shè)備烽火ASON 780B, 電力通信專門用途網(wǎng)本身還具有一些特點(diǎn):</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(1) 電力通信網(wǎng)基本上應(yīng)以光纖通信為主, 以微波通信作備份或補(bǔ)充。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(2) 光纖網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)復(fù)雜, 整個(gè)網(wǎng)絡(luò)節(jié)點(diǎn)數(shù)非常多, 需要傳輸設(shè)備有很強(qiáng)的組網(wǎng)和網(wǎng)絡(luò)管理能力,且對(duì)設(shè)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(shè)光纜通常芯數(shù)較少, 考慮到今后可能作為電信運(yùn)營(yíng)商, 應(yīng)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(gè)電力部門目前和將來(lái)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(wù)接口需求主要有POTS、2W/4W、E&M、V.24、V，青海全新光傳輸設(shè)備烽火ASON 780B.35、ISDN、E1、E3/T 3、10Mb/100Mb以太網(wǎng)接口等, 未來(lái)的業(yè)務(wù)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(shí)現(xiàn)計(jì)算機(jī)網(wǎng)絡(luò)的遠(yuǎn)程互聯(lián), 在SDH平臺(tái)上實(shí)現(xiàn)以太網(wǎng)業(yè)務(wù)傳送功能，青海全新光傳輸設(shè)備烽火ASON 780B, 從而實(shí)現(xiàn)二網(wǎng)合一, 且極大地降低網(wǎng)絡(luò)建設(shè)成本。</span> 電力系統(tǒng)一旦發(fā)生故障, 如果通信不暢, 不能及時(shí)調(diào)度指揮,就會(huì)擴(kuò)大***范圍。青海全新光傳輸設(shè)備烽火ASON 780B</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青海全新光傳輸設(shè)備烽火ASON 780B,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg"></div><p> SDH網(wǎng)絡(luò)的常見(jiàn)網(wǎng)元和功能 </p> <p> REG——再生中繼器 </p> <p> 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，主要進(jìn)行光功率放大以延長(zhǎng)光傳輸距離；另一種是用于脈沖再生整形的電再生中繼器，主要通過(guò)光/電變換、電信號(hào)抽樣、判決、再生整形、電/光變換，以達(dá)到不積累線路噪聲，保證線路上傳送信號(hào)波形的完好性。此處講的是后一種再生中繼器，REG是雙端口器件，只有兩個(gè)線路端口——W、E。 </p> <p> 它的作用是將w/e側(cè)的光信號(hào)經(jīng)O/E、抽樣、判決、再生整形、E/O在e或w側(cè)發(fā)出。注意到?jīng)]有，REG與ADM相比*少了支路端口，所以ADM若本地不上/下話路（支路不上/下信號(hào)）時(shí)完全可以等效一個(gè)REG。 </p> <p> 真正的REG只需處理STM-N幀中的RSOH，且不需要交叉連接功能（w—e直通即可），而ADM和TM因?yàn)橐瓿蓪⒌退僦沸盘?hào)分/插到STM-N中，所以不*要處理RSOH，而且還要處理MSOH；另外ADM和TM都具有交叉復(fù)用能力（有交叉連接功能），因此用ADM來(lái)等效REG有點(diǎn)大材小用了。海南SDH光傳輸設(shè)備烽火CONT管理單元指針位于STM-N幀中第4行的***到第9×N列。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青海全新光傳輸設(shè)備烽火ASON 780B,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">SDH網(wǎng)絡(luò)的常見(jiàn)網(wǎng)元和功能</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">DXC——數(shù)字交叉連接設(shè)備</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">數(shù)字交叉連接設(shè)備完成的主要是STM-N信號(hào)的交叉連接功能，它是一個(gè)多端口器件，它實(shí)際上相當(dāng)于一個(gè)交叉矩陣，完成各個(gè)信號(hào)間的交叉連接。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">DXC可將輸入的m路STM-N信號(hào)交叉連接到輸出的n路STM-N信號(hào)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(qiáng)的DXC能完成高速（例STM-16）信號(hào)在交叉矩陣內(nèi)的低級(jí)別交叉（例如VC12級(jí)別的交叉）。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">通常用DXCm/n來(lái)表示一個(gè)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(jí)，n表示在交叉矩陣中能夠進(jìn)行交叉連接的比較低速率級(jí)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。</span> </p> <p> <br /> </p> <p> <br /> </p><p> STM-N信號(hào)幀的重復(fù)頻率（也就是每秒傳送的幀數(shù)）是多少呢？ITU-T規(guī)定對(duì)于任何級(jí)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(gè)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(hào)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(hào)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(hào)速率≠E1信號(hào)速率的4倍。 </p> <p> STM-N信號(hào)幀的重復(fù)頻率（也就是每秒傳送的幀數(shù)）是多少呢？ITU-T規(guī)定對(duì)于任何級(jí)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(gè)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(hào)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(hào)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(hào)速率≠E1信號(hào)速率的4倍。 SDH傳輸網(wǎng)是由不同類型的網(wǎng)元通過(guò)光纜線路的連接組成的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青海全新光傳輸設(shè)備烽火ASON 780B,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105136719/8556415.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 近些年，點(diǎn)播電視、多媒體業(yè)務(wù)和其他寬帶業(yè)務(wù)如雨后春筍般紛紛出現(xiàn)，為SDH應(yīng)用在接入網(wǎng)中提供了廣闊的空間。SDH技術(shù)應(yīng)用于接入網(wǎng)的好處是：1）對(duì)于要求高可靠、高質(zhì)量業(yè)務(wù)的大型企事業(yè)用戶，SDH可以提供較為理想的網(wǎng)絡(luò)性能和業(yè)務(wù)可靠性。2）可以將網(wǎng)管范圍擴(kuò)展至用戶端，簡(jiǎn)化維護(hù)工作。3）利用SDH固有靈活性，可使網(wǎng)絡(luò)運(yùn)營(yíng)者更快、更有效地提供用戶所需的長(zhǎng)期和短期業(yè)務(wù)需求。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 從技術(shù)上來(lái)看，接入層的相對(duì)帶寬需求較小，需要提供IP、TDM，可能還有ATM等綜合業(yè)務(wù)傳送。以SDH 系統(tǒng)為基礎(chǔ)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(jià)地在一個(gè)業(yè)務(wù)提供點(diǎn)（POP）上提供高質(zhì)量專線、ATM 、IP 等業(yè)務(wù)的接入、傳送和保護(hù)。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 在各種寬帶光纖接入網(wǎng)技術(shù)中，采用SDH技術(shù)的接入網(wǎng)系統(tǒng)是應(yīng)用**普遍的。西藏SDH光端機(jī)烽火Citrans 550F</p><p style="text-indent:25px">SDH接入系統(tǒng)的不同等級(jí)的碼流在幀結(jié)構(gòu)凈負(fù)荷區(qū)內(nèi)的排列非常有規(guī)律。青海全新光傳輸設(shè)備烽火ASON 780B</p><p> 深圳市騰云科創(chuàng)信息咨詢有限公司 SDH的特點(diǎn) </p> <p> （1）由于SDH多種網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)，它所組成的網(wǎng)絡(luò)非常靈活，它能增強(qiáng)網(wǎng)監(jiān)，運(yùn)行管理和自動(dòng)配置功能，優(yōu)化了網(wǎng)絡(luò)性能有，同時(shí)也使網(wǎng)絡(luò)運(yùn)行靈活、安全、可靠，使網(wǎng)絡(luò)的功能非常齊全和多樣化； </p> <p> （2）SDH有傳輸和交換的性能它的系列設(shè)備的構(gòu)成能通過(guò)功能塊的自由組合，實(shí)現(xiàn)了不同層次和各種拓?fù)浣Y(jié)構(gòu)的網(wǎng)絡(luò)，十分靈活； </p> <p> （3）SDH并不專屬于某種傳輸介質(zhì)，它可用于雙絞線、同軸電纜，但SDH用于傳輸高數(shù)據(jù)率則需用光纖。這一特點(diǎn)表明，SDH既適合用作干線通道，也可作支線通道。例如，我國(guó)的國(guó)家與省級(jí)有線電視干線網(wǎng)就是采用SDH，而且它也便于與光纖電纜混合網(wǎng)(HFC)相兼容。 </p> <p> （4）從OSI模型的觀點(diǎn)來(lái)看，SDH屬于其比較低層的物理層，并未對(duì)其高層有嚴(yán)格的限制，便于在SDH上采用各種網(wǎng)絡(luò)技術(shù)，支持ATM或IP傳輸； </p> <p> （5）SDH是嚴(yán)格同步的，從而保證了整個(gè)網(wǎng)絡(luò)穩(wěn)定可靠，誤碼少，且便于復(fù)用和調(diào)整； </p> <p> （6）標(biāo)準(zhǔn)的開(kāi)放型光接口 </p> <p> 可以在基本光纜段上實(shí)現(xiàn)橫向兼容，降低了聯(lián)網(wǎng)成本。青海全新光傳輸設(shè)備烽火ASON 780B</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(shè)備、電子元器件、電子產(chǎn)品、建筑材料、通信設(shè)備(中興通訊及華為技術(shù)各系列產(chǎn)品板件及整套設(shè)備的銷售與安裝，設(shè)備維護(hù)及板件返修，以及各設(shè)備可配置的單板，用戶電纜，中繼電纜等)、辦公設(shè)備、五金交電、化工原料（不含危險(xiǎn)及監(jiān)控化學(xué)品）的銷售；經(jīng)濟(jì)信息咨詢；經(jīng)營(yíng)進(jìn)出口業(yè)務(wù)。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。騰云科創(chuàng)擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供SDH光傳輸設(shè)備，光端機(jī)，PCM接入設(shè)備，PTN OTN光傳輸設(shè)備。騰云科創(chuàng)始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。騰云科創(chuàng)始終關(guān)注通信產(chǎn)品市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3007565.html</p></div></div></div></div></div><div id="swtqsog" class="page-right twoColRt"><div id="zegizbn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="crog3t3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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