重慶PCM光端機(jī)廠(chǎng)家工業(yè)交換機(jī) 煙臺(tái)市正維通信技術(shù)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="光端機(jī)和光纖收發(fā)器的應(yīng)用區(qū)別現(xiàn)在光纖網(wǎng)絡(luò)和安防監(jiān)控已經(jīng)是非常普及了，但是還是很多客戶(hù)會(huì)對(duì)光纖基礎(chǔ)設(shè)備的了解很缺乏。我們的客戶(hù)對(duì)光纖收發(fā)器和光端的區(qū)別會(huì)混淆了。對(duì)于光端機(jī)和光纖收發(fā)器的區(qū)別，重慶PCM光端機(jī)廠(chǎng)家，他們的運(yùn)用區(qū)別，到底是如何區(qū)別"><meta name="keywords" content="重慶PCM光端機(jī)廠(chǎng)家,光端機(jī)"><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="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>山東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>重慶PCM光端機(jī)廠(chǎng)家,光端機(jī)</p><p><span>***更新：</span>2021-01-27 03:18:23</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="6zuloyi" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">煙臺(tái)市正維通信技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>程雷</p><p><span>郵箱: </span>zhengwei@zhengwei-teah.cn</p><p><span>電話(huà): </span>18766381696</p><p><span>傳真: </span>0535_</p><p><span>網(wǎng)址: </span>http://www.zwkj.net.cn</p><p><span>手機(jī): </span>0535-3975176</p><p><span>地址: </span>中國(guó)(山東)自由貿(mào)易試驗(yàn)區(qū)煙臺(tái)片區(qū)煙臺(tái)開(kāi)發(fā)區(qū)珠江路42號(hào)</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="6rm6qp4" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="gmhcm79" class="box"><p><p style="text-indent:25px">光端機(jī)和光纖收發(fā)器的應(yīng)用區(qū)別現(xiàn)在光纖網(wǎng)絡(luò)和安防監(jiān)控已經(jīng)是非常普及了，但是還是很多客戶(hù)會(huì)對(duì)光纖基礎(chǔ)設(shè)備的了解很缺乏。我們的客戶(hù)對(duì)光纖收發(fā)器和光端的區(qū)別會(huì)混淆了。對(duì)于光端機(jī)和光纖收發(fā)器的區(qū)別，重慶PCM光端機(jī)廠(chǎng)家，他們的運(yùn)用區(qū)別，到底是如何區(qū)別？光纖收發(fā)器在網(wǎng)絡(luò)中的是一個(gè)信號(hào)轉(zhuǎn)換設(shè)備，光纖收發(fā)器的作用是，將我們要發(fā)送的電信號(hào)轉(zhuǎn)換成光信號(hào)，并發(fā)送出去，同時(shí)，重慶PCM光端機(jī)廠(chǎng)家，能將接收到的光信號(hào)轉(zhuǎn)換成電信號(hào)，輸入到我們的接收端。光端機(jī)是一個(gè)延長(zhǎng)數(shù)據(jù)傳輸?shù)墓饫w通信設(shè)備，重慶PCM光端機(jī)廠(chǎng)家，讓光傳輸可以達(dá)到遠(yuǎn)程傳輸?shù)哪康?。?shù)字視頻光端機(jī)主要有兩種技術(shù)方式:一種是MPEG II圖象壓縮數(shù)字光端機(jī)，另一種是全數(shù)字非壓縮視頻光端機(jī)。重慶PCM光端機(jī)廠(chǎng)家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶PCM光端機(jī)廠(chǎng)家,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288076946112/8930383.png"></div><p style="text-indent:25px">光端機(jī)在安防領(lǐng)域有著重要的地位光端機(jī)在目前安防系統(tǒng)中扮演的是傳輸數(shù)據(jù)的角色，占據(jù)安防領(lǐng)域中重要的地位，他解決遠(yuǎn)距離傳輸和大容量傳輸。因?yàn)榍岸藬z像頭等采集源的接口不同，光端機(jī)必須成對(duì)使用，一個(gè)光端機(jī)把前端的輸入信號(hào)轉(zhuǎn)換成光信號(hào)，另一個(gè)光端機(jī)再把光信號(hào)還原成輸入信號(hào)送給終端。這也意味著在安防施工的過(guò)程中，針對(duì)每一個(gè)布點(diǎn)線(xiàn)路我們都必須配用一對(duì)光端機(jī)。在安防解決方案中，各個(gè)方向的布點(diǎn)數(shù)據(jù)，都會(huì)匯集到監(jiān)控中心，如果我們能對(duì)光端機(jī)進(jìn)行整合，在光端機(jī)的設(shè)計(jì)中也引入交換機(jī)的概念，采用一個(gè)多路光端機(jī)來(lái)接入來(lái)自不同布點(diǎn)線(xiàn)路的光信號(hào)，我們就可以省去一半數(shù)量的光端機(jī)，對(duì)大型項(xiàng)目來(lái)說(shuō)可以大量節(jié)約成本。這種集中管理的方式這有別于一般的多模光端機(jī)，多模形式在視頻圖像傳輸時(shí)，帶寬(針對(duì)模擬調(diào)制)和傳輸速率(針對(duì)數(shù)字式)有較大的限制，特別是因色散的影響明顯限制了采用高速率傳輸?shù)姆菈嚎s數(shù)字光端機(jī)在傳輸距離、容量方面的應(yīng)用。重慶PCM光端機(jī)廠(chǎng)家但由于光源的非線(xiàn)性較嚴(yán)重，因此其信噪比、傳輸距離和傳輸頻率都十分有限。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶PCM光端機(jī)廠(chǎng)家,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287916053249/6610643.png"></div><p style="text-indent:25px">光端機(jī)在廣電傳輸中的多種應(yīng)用傳輸設(shè)備傳輸設(shè)備以SDI光端機(jī)為主，根據(jù)實(shí)際情況選用數(shù)字方式傳輸?shù)囊?音頻光端機(jī)。通過(guò)SDI平臺(tái)傳送數(shù)字信號(hào)，與模擬信號(hào)以行同步前沿為基準(zhǔn)不同，它是以串行數(shù)據(jù)流中的時(shí)鐘周期為基準(zhǔn)，同步鎖相也是與時(shí)鐘進(jìn)行鎖定。這樣，只要接收機(jī)能夠鎖定輸入信號(hào)，則可以恢復(fù)信號(hào)。現(xiàn)場(chǎng)直播在電視現(xiàn)場(chǎng)直播中，采用數(shù)字傳輸一般可分為兩種方式。第一種是前端錄制、傳輸及后期制作全部采用數(shù)字設(shè)備。第二種是前端錄制采用模擬方式，中間采用數(shù)字傳輸方式以減小傳輸過(guò)程中信號(hào)損耗，后期制作視自身情況采用數(shù)字或者模擬方式。以上是光端機(jī)的多種應(yīng)用等等，希望可以讓大家對(duì)光端機(jī)有更生的了解。</p><p style="text-indent:25px">數(shù)字光端機(jī)是將所要傳輸?shù)膱D像、語(yǔ)音以及數(shù)據(jù)信號(hào)進(jìn)行數(shù)字化處理，再將這些數(shù)字信號(hào)進(jìn)行復(fù)用處理，使多路低速的數(shù)字信號(hào)轉(zhuǎn)換成一路高速信號(hào)，并將這一信號(hào)轉(zhuǎn)換成光信號(hào)。在接收端將光信號(hào)還原成電信號(hào)，還原的高速信號(hào)分解出原來(lái)的多路低速信號(hào)，較后再將這些數(shù)據(jù)信號(hào)還原成圖像、語(yǔ)音以及數(shù)據(jù)信號(hào)。模擬光端機(jī)就是將要傳輸?shù)男盘?hào)進(jìn)行幅度或頻率調(diào)制然后將調(diào)制好的電信號(hào)轉(zhuǎn)化成光信號(hào)。在接收端將光信號(hào)還原成電信號(hào)，再把信號(hào)進(jìn)行解調(diào)，還原出圖像、語(yǔ)音或數(shù)據(jù)信號(hào)。數(shù)字光端機(jī)傳輸信號(hào)質(zhì)量高，沒(méi)有模擬調(diào)頻、調(diào)相、調(diào)幅光端機(jī)多路信號(hào)同傳時(shí)的交調(diào)干擾嚴(yán)重、容易受環(huán)境影響、傳輸質(zhì)量低劣、長(zhǎng)期工作穩(wěn)定性差的缺點(diǎn)，因此，數(shù)字光端機(jī)將逐漸取代模擬光端機(jī)。模擬調(diào)頻、調(diào)幅、調(diào)相光端機(jī)在市場(chǎng)初期的傳輸方式是將基帶的視頻、音頻、數(shù)據(jù)等信號(hào)調(diào)制在某一載頻上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶PCM光端機(jī)廠(chǎng)家,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288413839434/2299527.png"></div><p style="text-indent:25px">SDH光端機(jī) SDH(SynchronousDigitalHierarchy，同步數(shù)字系列)光端機(jī)容量較大，一般是16E1到4032E1。 SDH設(shè)備是一種將復(fù)接、線(xiàn)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(luò) 。而隨著數(shù)字通信的迅速發(fā)展，點(diǎn)到點(diǎn)的直接傳輸越來(lái)越少，而大部分?jǐn)?shù)字傳輸都要經(jīng)過(guò)轉(zhuǎn)接，因而PDH系列便不能適合現(xiàn)代電信業(yè)務(wù)開(kāi)發(fā)的需要，以及現(xiàn)代化電信網(wǎng)管理的需要。SDH就是適應(yīng)這種新的需要而出現(xiàn)的傳輸體系。 SPDH光端機(jī) SPDH(SynchronousPlesiochronousDigitalHierarchy)光端機(jī)，介于PDH和SDH之間。SPDH是帶有SDH(同步數(shù)字系列)特點(diǎn)的PDH傳輸體制(基于PDH的碼速調(diào)整原理，同時(shí)又盡可能采用SDH中一部分組網(wǎng)技術(shù))。光端機(jī)從接口分類(lèi)又為視頻光端機(jī)，音頻光端機(jī)，數(shù)據(jù)光端機(jī)，以太網(wǎng)光端機(jī)，開(kāi)關(guān)量光端機(jī)，電話(huà)光端機(jī)。光端機(jī)的信號(hào)地應(yīng)與機(jī)殼地、大地相連，為積累的靜電荷提供泄放回路，防止靜電荷積累，損壞設(shè)備。重慶PCM光端機(jī)廠(chǎng)家</p><p style="text-indent:25px">防雷設(shè)計(jì)也是現(xiàn)今光端機(jī)提升功能的重要課題。重慶PCM光端機(jī)廠(chǎng)家</p><p style="text-indent:25px">光纖收發(fā)器與光端機(jī)的區(qū)別是什么？相同之處：都要進(jìn)行光電轉(zhuǎn)換。不同之處：收發(fā)器只是進(jìn)行光電轉(zhuǎn)換，不改變編碼，不對(duì)數(shù)據(jù)作其他處理，收發(fā)器是針對(duì)以太網(wǎng)來(lái)說(shuō)，跑802.3協(xié)議，只用于點(diǎn)對(duì)點(diǎn)的連接。光端機(jī)，除了光電轉(zhuǎn)換的工作以外，還要對(duì)數(shù)據(jù)信號(hào)進(jìn)行復(fù)用和解復(fù)用。通常光端機(jī)出來(lái)的是對(duì)E1線(xiàn)路，SDH，PDH光端機(jī)主要用于電信運(yùn)營(yíng)商，用于提供多點(diǎn)到點(diǎn)的數(shù)據(jù)電路；視頻光端機(jī)主要用于安防監(jiān)控，遠(yuǎn)程教育，視頻會(huì)議等對(duì)視頻傳輸要求適時(shí)比較高的領(lǐng)域，同時(shí)可以傳輸控制，開(kāi)關(guān)量，語(yǔ)言，以太網(wǎng)等信號(hào)來(lái)滿(mǎn)足多業(yè)務(wù)應(yīng)用需求，所以我們有時(shí)候也將其稱(chēng)為綜合光端機(jī)。重慶PCM光端機(jī)廠(chǎng)家</p><p style="text-indent:25px">煙臺(tái)市正維通信技術(shù)有限公司致力于通信產(chǎn)品，是一家生產(chǎn)型的公司。公司業(yè)務(wù)分為工業(yè)交換機(jī)，以太網(wǎng)交換機(jī)，環(huán)網(wǎng)交換機(jī)，光纖收發(fā)器等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶(hù)提供良好的產(chǎn)品和服務(wù)。公司從事通信產(chǎn)品多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批**的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶(hù)提供良好的產(chǎn)品及服務(wù)。煙臺(tái)正維通信技術(shù)立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶(hù)的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3027901.html</p></div></div></div></div></div><div id="bd6agyx" class="page-right twoColRt"><div id="66fiznx" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fhk4kj9" class="recomPic likePro"><a href="http://www.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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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