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href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="rzh575v" class="twoCol"><div id="ttbvrbz" 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/first-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/second-txcp_csjhsb/">傳輸、交換設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-csjhsb_gdjlh/">光端機(jī)</a>?湖北高清光端機(jī)生產(chǎn)廠家工業(yè)交換機(jī) 煙臺(tái)市正維通信技術(shù)供應(yīng)</p><div id="vfzld1p" class="leftbox clearfix"><h1>湖北高清光端機(jī)生產(chǎn)廠家工業(yè)交換機(jī) 煙臺(tái)市正維通信技術(shù)供應(yīng)</h1><div id="bblrppf" class="proBig"><div id="r1j5ftn" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287850514481/8615403.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zbvvhhr" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287850514481/8615403.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="d71tv11" 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>湖北高清光端機(jī)生產(chǎn)廠家,光端機(jī)</p><p><span>***更新：</span>2021-01-26 05:23:11</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="x9nldbl" 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: </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(山東)自由貿(mào)易試驗(yàn)區(qū)煙臺(tái)片區(qū)煙臺(tái)開發(fā)區(qū)珠江路42號(hào)</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="hbvdrxr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vtv1lh5" class="box"><p><p style="text-indent:25px">光端機(jī)，顧名思義就是光信號(hào)傳輸?shù)慕K端設(shè)備，湖北高清光端機(jī)生產(chǎn)廠家。由于目前光纖的大幅降價(jià)及其在各個(gè)領(lǐng)域的廣范應(yīng)用，光端機(jī)的使用量越來越大，湖北高清光端機(jī)生產(chǎn)廠家，各光端機(jī)生產(chǎn)廠家也如雨后春筍般相繼出現(xiàn)。但因其中一部分技術(shù)在光端機(jī)市場還很小時(shí)就已比較成熟，開發(fā)新技術(shù)又需耗費(fèi)大量人力、物力，所以光端機(jī)生產(chǎn)廠家多以中小企業(yè)為主，各種品牌層出不窮，湖北高清光端機(jī)生產(chǎn)廠家，但質(zhì)量卻大相徑庭。視頻監(jiān)控中的光端機(jī)是光通信系統(tǒng)中的傳輸設(shè)備，主要是進(jìn)行光電轉(zhuǎn)換及傳輸功用。一般用于電信、電力、監(jiān)控、工業(yè)控制、視頻傳輸?shù)裙δ埽诟鱾€(gè)行業(yè)有著廣的應(yīng)用。光端機(jī)是用來將光信號(hào)和電信號(hào)互相轉(zhuǎn)換的一種設(shè)備,對(duì)所傳信號(hào)不會(huì)進(jìn)行任何壓縮.湖北高清光端機(jī)生產(chǎn)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北高清光端機(jī)生產(chǎn)廠家,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287850514481/8615403.png"></div><p style="text-indent:25px">關(guān)于模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別，可以先了解下數(shù)字信號(hào)和模擬信號(hào)的區(qū)別，從而容易了解模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別了！模擬信號(hào)傳輸輸入和輸出處理方式不一樣無論模擬、數(shù)字光端機(jī)，對(duì)輸入的基帶的視頻、音頻、數(shù)據(jù)信號(hào)都必須進(jìn)行處理。對(duì)于模擬調(diào)幅光端機(jī) 視頻、音頻、數(shù)據(jù)的幅度對(duì)一高頻載波信號(hào)進(jìn)行調(diào)制，使高頻載波信號(hào)的幅度隨視頻、音頻、數(shù)據(jù)的幅度變化而光端機(jī)對(duì)輸入的基帶的視頻、音頻、數(shù)據(jù)進(jìn)行高分辨率的模擬-數(shù)字轉(zhuǎn)換，如1Vp-p幅度范圍的幅度信號(hào)利用號(hào)來表示，1V等分成4096，因此模數(shù)轉(zhuǎn)換后引起的最大電壓幅度誤差為1/4096V(約2.5mV),此誤差電壓稱各種幅度的電壓數(shù)值從0V、1/4096V、2/4096V...數(shù)字編碼信號(hào)直接控制光頭發(fā)射的光信號(hào)的強(qiáng)、弱兩種狀態(tài)(對(duì)應(yīng)0或再將數(shù)字編碼進(jìn)行數(shù)字-模擬轉(zhuǎn)換，恢復(fù)成原始的基帶的視頻、音頻、數(shù)據(jù)信號(hào)。湖北高清光端機(jī)生產(chǎn)廠家數(shù)字光端機(jī)支持視頻無損再生中繼，因此可以采用多級(jí)傳輸模式。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北高清光端機(jī)生產(chǎn)廠家,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469286900587750/3859021.png"></div><p style="text-indent:25px">模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別關(guān)于模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別，可以先了解下數(shù)字信號(hào)和模擬信號(hào)的區(qū)別，從而容易了解模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別了！光纖上傳輸?shù)男盘?hào)方式不一樣顧名思義，模擬光端機(jī)上光頭發(fā)射的光信號(hào)是模擬光調(diào)制信號(hào)，它隨輸入的模擬載波信號(hào)的幅度、頻率光信號(hào)幅度、頻率、相位變化而分別稱為調(diào)幅、調(diào)頻、調(diào)相光端機(jī)。而數(shù)字光端機(jī)上光頭發(fā)射的光信號(hào)是數(shù)字應(yīng)光信號(hào)強(qiáng)、弱兩種狀態(tài)，不同的0和1組合表示不同幅度的視頻、音頻、數(shù)據(jù)信號(hào)。</p><p style="text-indent:25px">以太網(wǎng)光端機(jī)的分類按光纖性質(zhì)分類：單模光纖收發(fā)器：傳輸距離20公里至120公里多模光纖收發(fā)器：傳輸距離2公里到5公里按所需光纖分類：單纖光纖收發(fā)器：接收發(fā)送的數(shù)據(jù)在一根光纖上傳輸雙纖光纖收發(fā)器：接收發(fā)送的數(shù)據(jù)在一對(duì)光纖上傳輸按工作層次/速率分類： 100M以太網(wǎng)光纖收發(fā)器：工作在物理層 10/100M自適應(yīng)以太網(wǎng)光纖收發(fā)器：工作在數(shù)據(jù)鏈路層按結(jié)構(gòu)分類：桌面式（單獨(dú)式）光纖收發(fā)器：單獨(dú)式用戶端設(shè)備機(jī)架式（模塊化）光纖收發(fā)器：安裝于十六槽機(jī)箱，采用集中供電方式按管理類型分類：非網(wǎng)管型以太網(wǎng)光纖收發(fā)器：即插即用，通過硬件撥碼開關(guān)設(shè)置電口工作模式網(wǎng)管型以太網(wǎng)光纖收發(fā)器：支持電信級(jí)網(wǎng)絡(luò)管理按電源分類：內(nèi)置電源光纖收發(fā)器：內(nèi)置開關(guān)電源為電信級(jí)電源外置電源光纖收發(fā)器：外置變壓器電源多使用在民用設(shè)備上。數(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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北高清光端機(jī)生產(chǎn)廠家,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287100651396/3570245.png"></div><p style="text-indent:25px">我國城市交通和高速公路建設(shè)的快速發(fā)展，對(duì)監(jiān)控系統(tǒng)中的設(shè)備要求也越來越高，由于光纖傳輸具有帶寬大、傳輸距離遠(yuǎn)、抗干擾的優(yōu)勢(shì)被廣應(yīng)用。光端機(jī)由于其諸多傳輸優(yōu)勢(shì)，加上這幾年的市場需求猛增，光纜成本大幅降低，已經(jīng)進(jìn)入相對(duì)良性的產(chǎn)業(yè)發(fā)展軌道。。2006年前后開始的“平安城市”建設(shè)，光端機(jī)已經(jīng)幾乎成為標(biāo)準(zhǔn)配置，讓光端機(jī)廠商迎來“黃金時(shí)代”。目前，平安城市、城市智能交通、高速公路、城市軌道交通項(xiàng)目是光端機(jī)的主要市場。光傳輸系統(tǒng)由三部分組成:光源(光發(fā)送機(jī))，傳輸介質(zhì)、檢測器(光接收機(jī))。上海專業(yè)光端機(jī)價(jià)格</p><p style="text-indent:25px">模擬光端機(jī)采用了PFM調(diào)制技術(shù)實(shí)時(shí)傳輸圖象信號(hào)。湖北高清光端機(jī)生產(chǎn)廠家</p><p style="text-indent:25px">關(guān)于模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別，可以先了解下數(shù)字信號(hào)和模擬信號(hào)的區(qū)別，從而容易了解模擬光端機(jī)與數(shù)字光端機(jī)的區(qū)別了！多路信號(hào)同傳引起的交調(diào)失真 ? 在現(xiàn)場監(jiān)控應(yīng)用中，用戶可能有許多各種信號(hào)，如視頻圖像、音頻、數(shù)據(jù)、以太網(wǎng)、電話或其它用戶自種信號(hào)分別用一對(duì)光端機(jī)來傳輸，必然價(jià)格昂貴，所以為了提高光纖的利用效率，降低成本，必須的各種信號(hào)在以便在一對(duì)或一根光纖上傳輸。對(duì)調(diào)頻、調(diào)幅、調(diào)相光端機(jī)來講，傳輸10/100M以太網(wǎng)信號(hào)或多路電話等高速的，將多路視頻或音頻信號(hào)混合調(diào)頻、調(diào)幅、調(diào)相在某一載波上必然會(huì)引起各種鏡像、交調(diào)干擾。模擬光端機(jī)傳輸信號(hào)容量有限，一般不會(huì)超過4路信號(hào)端機(jī)傳輸?shù)氖菙?shù)字信號(hào)，很容易進(jìn)行大容量復(fù)用并且不會(huì)出現(xiàn)相互干擾。湖北高清光端機(jī)生產(chǎn)廠家</p><p 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