寧夏代理光傳輸設(shè)備烽火Citrans 550F 深圳市騰云科創(chuàng)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="SDH的特點(diǎn)（1）由于SDH有多種網(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，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；（2）SDH有傳輸和交換的性能，它的系列設(shè)備的構(gòu)成"><meta name="keywords" content="寧夏代理光傳輸設(shè)備烽火Citrans 550F,烽火"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" 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class="home-main container clearfix"><div id="zt4ce3l" class="twoCol"><div id="hlfcjnm" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a 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>?寧夏代理光傳輸設(shè)備烽火Citrans 550F 深圳市騰云科創(chuàng)供應(yīng)</p><div id="fjykwik" class="leftbox clearfix"><h1>寧夏代理光傳輸設(shè)備烽火Citrans 550F 深圳市騰云科創(chuàng)供應(yīng)</h1><div id="t3yl3cz" class="proBig"><div id="cq9ubsu" 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="mlvcw27" 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="t3vhtfr" 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>寧夏代理光傳輸設(shè)備烽火Citrans 550F,烽火</p><p><span>***更新：</span>2021-02-02 05:07:07</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="8tvseli" 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="8fc37jf" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="qk97upb" class="box"><p><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">SDH的特點(diǎn)</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（1）由于SDH有多種網(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，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；</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（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；</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（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，寧夏代理光傳輸設(shè)備烽火Citrans 550F，但SDH用于傳輸高數(shù)據(jù)率則需用光纖。這一特點(diǎn)表明，寧夏代理光傳輸設(shè)備烽火Citrans 550F，SDH既適合用作干線通道，也可作支線通道。例如，我國的國家與省級(jí)有線電視干線網(wǎng)就是采用SDH，寧夏代理光傳輸設(shè)備烽火Citrans 550F，而且它也便于與光纖電纜混合網(wǎng)(HFC)相兼容。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（4）從OSI模型的觀點(diǎn)來看，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；</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（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；</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（6）標(biāo)準(zhǔn)的開放型光接口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。</span> 網(wǎng)絡(luò)的有效性、可靠性和經(jīng)濟(jì)性在很大程度上與其拓?fù)浣Y(jié)構(gòu)有關(guān)。寧夏代理光傳輸設(shè)備烽火Citrans 550F</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧夏代理光傳輸設(shè)備烽火Citrans 550F,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg"></div><p> 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，簡化維護(hù)工作。3）利用SDH固有靈活性，可使網(wǎng)絡(luò)運(yùn)營者更快、更有效地提供用戶所需的長期和短期業(yè)務(wù)需求。 </p> <p> <br /> </p> <p> <br /> </p> <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(jī)及各型號(hào)單板。華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機(jī)及各型號(hào)單板。華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機(jī)及各型號(hào)單板。烽火IBAS系列產(chǎn)品： IBAS780A｜IBAS780B， PCM綜合接入設(shè)備介紹：FA16接入設(shè)備｜BX10接入設(shè)備甘肅光傳輸設(shè)備SDH烽火NMU分/插復(fù)用器用于SDH傳輸網(wǎng)絡(luò)的轉(zhuǎn)接站點(diǎn)處。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧夏代理光傳輸設(shè)備烽火Citrans 550F,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg"></div><p> 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，我國的國家與省級(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。 </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(luò)的拓?fù)浣Y(jié)構(gòu)用得很多，因?yàn)榄h(huán)形網(wǎng)具有較強(qiáng)的自愈功能。自愈環(huán)的分類可按保護(hù)的業(yè)務(wù)級(jí)別、環(huán)上業(yè)務(wù)的方向、網(wǎng)元節(jié)點(diǎn)間光纖數(shù)等來劃分。 </p> <p> 按環(huán)上業(yè)務(wù)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(diǎn)間的光纖數(shù)可將自愈環(huán)劃分為兩纖環(huán)（一對(duì)收/發(fā)光纖）和四纖環(huán)（兩對(duì)收發(fā)光纖）；按保護(hù)方式還可將自愈環(huán)劃分為通道保護(hù)環(huán)和復(fù)用段保護(hù)環(huán)兩大類。 </p> <p> 對(duì)于通道保護(hù)環(huán)，業(yè)務(wù)的保護(hù)是以通道為基礎(chǔ)的，也就是保護(hù)的是STM-N信號(hào)中的某個(gè)VC通道，根據(jù)環(huán)上的某一個(gè)別通道信號(hào)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(hào)來決定該通道是否應(yīng)進(jìn)行倒換。 </p> <p> 復(fù)用段倒換環(huán)是以復(fù)用段為基礎(chǔ)的，根據(jù)環(huán)上傳輸?shù)膹?fù)用段信號(hào)的質(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(dòng)的。復(fù)用段保護(hù)倒換的觸發(fā)條件是LOF、LOS、MS-AIS告警信號(hào)。 </p> <p> 通道保護(hù)環(huán)的倒換無需APS協(xié)議，采用“并發(fā)優(yōu)收”的倒換機(jī)理---簡單。 </p> <p> 復(fù)用段保護(hù)環(huán)要使用APS協(xié)議，倒換機(jī)理---較復(fù)雜。為滿足整個(gè)電力部門目前和將來的所有通信需求, 需要做到話音。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="寧夏代理光傳輸設(shè)備烽火Citrans 550F,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><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(wù)需求的發(fā)展。四川光端機(jī)烽火ASON 780B</p><p style="text-indent:25px">。隨著經(jīng)濟(jì)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(wù)多樣化。寧夏代理光傳輸設(shè)備烽火Citrans 550F</p><p style="text-indent:25px">近年來,通信產(chǎn)品技術(shù)突飛猛進(jìn)，通信產(chǎn)業(yè)成為全世界發(fā)展速度**快的產(chǎn)業(yè)之一。在中國國內(nèi)，受益于我國對(duì)相關(guān)部門與公共安全的重視，以及經(jīng)濟(jì)飛速發(fā)展帶來的大型活動(dòng)增加，我國專網(wǎng)通信行業(yè)保持飛速增長趨勢(shì)。2018年，“中美貿(mào)易摩擦”無疑成為刺入市場(chǎng)的一把利劍，也壓制了SDH光傳輸設(shè)備，光端機(jī)，PCM接入設(shè)備，PTN OTN光傳輸設(shè)備的加入熱情。G20峰會(huì)的中美兩國元首會(huì)晤，讓緊張的中美關(guān)系看到一些轉(zhuǎn)機(jī)，但雙方未來的關(guān)系走向仍待觀察。實(shí)際上，自從中美貿(mào)易摩擦不斷升級(jí)以來，中國通信設(shè)備商所面臨的國際經(jīng)營壓力較大，且事端不斷。普遍的全球4G連接網(wǎng)絡(luò)以及對(duì)5G網(wǎng)絡(luò)早期商業(yè)化的持續(xù)加入將在很大程度上促進(jìn)現(xiàn)代企業(yè)通信解決方案的采用。對(duì)于簡化企業(yè)通信功能的需求以及BOYD趨勢(shì)的日益普及，預(yù)計(jì)將在未來幾年內(nèi)持續(xù)推動(dòng)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)營進(jìn)出口業(yè)務(wù)。市場(chǎng)的增長。人工智能有限責(zé)任公司企業(yè)發(fā)展進(jìn)入快車道，近兩年實(shí)現(xiàn)了真正的跨越式發(fā)展。預(yù)計(jì)2018年的主旋律仍將是人工智能技術(shù)的產(chǎn)業(yè)化落地，將會(huì)有更多的傳統(tǒng)企業(yè)借助AI技術(shù)實(shí)現(xiàn)智能化轉(zhuǎn)型。寧夏代理光傳輸設(shè)備烽火Citrans 550F</p><p 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