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src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105000000/3722756.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="748kb4h" 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>光傳輸設(shè)備烽火STM-4,烽火</p><p><span>***更新：</span>2020-08-27 22:16:37</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="dq3ugkb" 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="j2pw39c" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="lz83r3z" class="box"><p><p> SDH的主要設(shè)備 </p> <p> SDH設(shè)備是實(shí)現(xiàn)光同步傳輸網(wǎng)的重要物理手段。SDH設(shè)備只要有終端復(fù)用器（TM）、分插復(fù)用器（ADM）和書籍交叉連接設(shè)備（DXC）等。這些設(shè)備的功能不同，但都有統(tǒng)一的標(biāo)準(zhǔn)光接口，不同廠家的產(chǎn)品能夠?qū)崿F(xiàn)橫向兼容。 </p> <p> 深圳騰云科創(chuàng)信息咨詢有限公司，擁有專業(yè)的技術(shù)團(tuán)隊(duì)，由 (中興通訊，華為技術(shù))服務(wù)10年以上從業(yè)經(jīng)驗(yàn)的技術(shù)****，并有多名專業(yè)技術(shù)人員為您提供專業(yè)的商務(wù)技術(shù)和專業(yè)解決方案。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)及各型號單板。華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機(jī)及各型號單板。華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機(jī)及各型號單板。烽火IBAS系列產(chǎn)品： IBAS780A｜IBAS780B，光傳輸設(shè)備烽火STM-4， PCM綜合接入設(shè)備介紹：FA16接入設(shè)備｜BX10接入設(shè)備，光傳輸設(shè)備烽火STM-4，我司積極面向市場為廣大行業(yè)用戶提供設(shè)計(jì)、安裝、調(diào)試、培訓(xùn)、維護(hù)的“一條龍”***服務(wù)。積極響應(yīng)配合客戶做好售后服務(wù)，光傳輸設(shè)備烽火STM-4，在業(yè)界贏得廣大客戶認(rèn)可及一致好評。努力奉獻(xiàn)，您的滿意是我們一直的追求。光傳輸設(shè)備烽火STM-4</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="光傳輸設(shè)備烽火STM-4,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105000000/3722756.jpg"></div><p> SDH網(wǎng)絡(luò)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(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等。下面我們講述SDH網(wǎng)中常見網(wǎng)元的特點(diǎn)和基本功能。 </p> <p> TM——終端復(fù)用器 </p> <p> 終端復(fù)用器用在網(wǎng)絡(luò)的終端站點(diǎn)上，例如一條鏈的兩個(gè)端點(diǎn)上，它是一個(gè)雙端口器件。它的作用是將支路端口的低速信號復(fù)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(fù)用進(jìn)STM-N幀（將低速信號復(fù)用到線路）上時(shí)，有一個(gè)交叉的功能，例如：可將支路的一個(gè)STM-1信號復(fù)用進(jìn)線路上的STM-16信號中的任意位置上，也就是指復(fù)用在1~16個(gè)STM-1的任一個(gè)位置上。將支路的2Mbit/s信號可復(fù)用到一個(gè)STM-1中63個(gè)VC12的任一個(gè)位置上去。對于華為設(shè)備，TM的線路端口（光口）一般以西向端口默認(rèn)表示的。徐匯區(qū)烽火180SDH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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="光傳輸設(shè)備烽火STM-4,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg"></div><p> SDH的產(chǎn)生背景 </p> <p> SDH技術(shù)的誕生有其必然性，隨著通信的發(fā)展，要求傳送的信息不*是話音，還有文字、數(shù)據(jù)、圖像，和視頻等。加之?dāng)?shù)字通信和計(jì)算機(jī)技術(shù)的發(fā)展，在70至80年代，陸續(xù)出現(xiàn)了T1(DS1)／E1載波系統(tǒng)(1.544／2.048Mbps)、X.25幀中繼、ISDN(綜合業(yè)務(wù)數(shù)字網(wǎng)) 和FDDI(光纖分布式數(shù)據(jù)接口)等多種網(wǎng)絡(luò)技術(shù)。隨著信息社會的到來，人們希望現(xiàn)代信息傳輸網(wǎng)絡(luò)能快速、經(jīng)濟(jì)、有效地提供各種電路和業(yè)務(wù)，而上述網(wǎng)絡(luò)技術(shù)由于其業(yè)務(wù)的單調(diào)性，擴(kuò)展的復(fù)雜性，帶寬的局限性，*在原有框架內(nèi)修改或完善已無濟(jì)于事。SDH就是在這種背景下發(fā)展起來的。 </p><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> 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)及各型號單板。華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機(jī)及各型號單板。華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機(jī)及各型號單板。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。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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="光傳輸設(shè)備烽火STM-4,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105205079/5635847.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。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。潮州烽火10/100M自適應(yīng)以太網(wǎng)板卡</p><p style="text-indent:25px">網(wǎng)絡(luò)節(jié)點(diǎn)設(shè)備（網(wǎng)元）和傳輸線路的幾何排列就構(gòu)成了網(wǎng)絡(luò)的拓?fù)浣Y(jié)構(gòu)。光傳輸設(shè)備烽火STM-4</p><p> 樹形網(wǎng) </p> <p> <br /> </p> <p> 樹形網(wǎng)絡(luò)拓?fù)淇煽闯墒擎溞瓮負(fù)浜托切瓮負(fù)涞慕Y(jié)合。 </p> <p> <br /> </p> <p> 環(huán)形網(wǎng) </p> <p> <br /> </p> <p> 環(huán)形網(wǎng)拓?fù)鋵?shí)際上是指將鏈形拓?fù)涫孜蚕噙B，從而使網(wǎng)上任何一個(gè)網(wǎng)元節(jié)點(diǎn)都不對外開放的網(wǎng)絡(luò)拓?fù)湫问健＿@是當(dāng)前使用**多的網(wǎng)絡(luò)拓?fù)湫问?，主要是因?yàn)樗哂泻軓?qiáng)的生存性，即自愈功能較強(qiáng)。 </p> <p> <br /> </p> <p> 網(wǎng)孔形網(wǎng) </p> <p> <br /> </p> <p> 將所有網(wǎng)元節(jié)點(diǎn)兩兩相連，就形成了網(wǎng)孔形網(wǎng)絡(luò)。這種網(wǎng)絡(luò)拓?fù)錇閮删W(wǎng)元節(jié)點(diǎn)間提供多個(gè)傳輸路由，使網(wǎng)絡(luò)的可靠更強(qiáng)。但是由于系統(tǒng)的冗余度高，必會使系統(tǒng)有效性降低，成本高且結(jié)構(gòu)復(fù)雜。 </p> <p> <br /> </p> <p> 當(dāng)前用得**多的網(wǎng)絡(luò)拓?fù)涫擎溞魏铜h(huán)形，通過它們的靈活組合，可構(gòu)成更加復(fù)雜的網(wǎng)絡(luò)。光傳輸設(shè)備烽火STM-4</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)營進(jìn)出口業(yè)務(wù)。的公司，創(chuàng)建于2015-10-29。公司自2015-10-29成立以來，投身于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，是通信產(chǎn)品的主力軍。騰云科創(chuàng)不斷開拓創(chuàng)新，追求***，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為**，以服務(wù)為保障，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。騰云科創(chuàng)始終關(guān)注自身，在風(fēng)云變化的時(shí)代，我們對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使我們在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1064110.html</p></div></div></div></div></div><div id="dlnkguq" class="page-right twoColRt"><div id="cgszqhy" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mqh7wla" 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