河南光端機(jī)的價格工業(yè)交換機(jī) 煙臺市正維通信技術(shù)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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，不對數(shù)據(jù)作其他處理，收發(fā)器是針對以太網(wǎng)來說，跑802，河南光端機(jī)的價格.3協(xié)議，只用于點(diǎn)對點(diǎn)的連接。光端機(jī)，除了光電轉(zhuǎn)換的工作以外，還"><meta name="keywords" content="河南光端機(jī)的價格,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" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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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>?河南光端機(jī)的價格工業(yè)交換機(jī) 煙臺市正維通信技術(shù)供應(yīng)</p><div id="fwregse" class="leftbox clearfix"><h1>河南光端機(jī)的價格工業(yè)交換機(jī) 煙臺市正維通信技術(shù)供應(yīng)</h1><div id="jy8urda" class="proBig"><div id="xro728t" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288312342738/5018196.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pebdkmt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288312342738/5018196.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gvx8he7" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>河南光端機(jī)的價格,光端機(jī)</p><p><span>***更新：</span>2021-01-25 02:17:50</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="hgnpri4" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">煙臺市正維通信技術(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)易試驗區(qū)煙臺片區(qū)煙臺開發(fā)區(qū)珠江路42號</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="gfmebs9" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="jd28njn" class="box"><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，不對數(shù)據(jù)作其他處理，收發(fā)器是針對以太網(wǎng)來說，跑802，河南光端機(jī)的價格.3協(xié)議，只用于點(diǎn)對點(diǎn)的連接。光端機(jī)，除了光電轉(zhuǎn)換的工作以外，還要對數(shù)據(jù)信號進(jìn)行復(fù)用和解復(fù)用。通常光端機(jī)出來的是對E1線路，SDH，PDH光端機(jī)主要用于電信運(yùn)營商，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，視頻會議等對視頻傳輸要求適時比較高的領(lǐng)域，同時可以傳輸控制，開關(guān)量，語言，河南光端機(jī)的價格，以太網(wǎng)等信號來滿足多業(yè)務(wù)應(yīng)用需求，河南光端機(jī)的價格，所以我們有時候也將其稱為綜合光端機(jī)。數(shù)字光端機(jī)的視頻采用8位數(shù)字編碼。河南光端機(jī)的價格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南光端機(jī)的價格,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288312342738/5018196.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)字信號和模擬信號的區(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，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分別用一對光端機(jī)來傳輸，必然價格昂貴，所以為了提高光纖的利用效率，降低成本，必須的各種信號在以便在一對或一根光纖上傳輸。對調(diào)頻、調(diào)幅、調(diào)相光端機(jī)來講，傳輸10/100M以太網(wǎng)信號或多路電話等高速的，將多路視頻或音頻信號混合調(diào)頻、調(diào)幅、調(diào)相在某一載波上必然會引起各種鏡像、交調(diào)干擾。模擬光端機(jī)傳輸信號容量有限，一般不會超過4路信號端機(jī)傳輸?shù)氖菙?shù)字信號，很容易進(jìn)行大容量復(fù)用并且不會出現(xiàn)相互干擾。四川視頻光端機(jī)報價模擬視頻光端機(jī)與數(shù)字光端機(jī)在光纖上傳輸?shù)男盘柗绞讲灰粯印?/p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南光端機(jī)的價格,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288702782803/3120597.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)字信號和模擬信號的區(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)，對輸入的基帶的視頻、音頻、數(shù)據(jù)信號都必須進(jìn)行處理。對于模擬調(diào)幅光端機(jī) 視頻、音頻、數(shù)據(jù)的幅度對一高頻載波信號進(jìn)行調(diào)制，使高頻載波信號的幅度隨視頻、音頻、數(shù)據(jù)的幅度變化而光端機(jī)對輸入的基帶的視頻、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利用號來表示，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)字編碼信號直接控制光頭發(fā)射的光信號的強(qiáng)、弱兩種狀態(tài)(對應(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。</p><p style="text-indent:25px">光端機(jī)在廣電傳輸中的多種應(yīng)用隨著大通信時代的不斷發(fā)展，廣播電視從模擬向數(shù)字的過渡，數(shù)字化帶給大眾的感受是節(jié)目質(zhì)量提高、節(jié)目更加豐富多彩?，F(xiàn)在，人們對電視節(jié)目的需求日益提高，不只是收到電視信號就可以了，還要求完美的畫面和逼真的聲音。這個時候光端機(jī)就在這里發(fā)揮重大作用了！因此，先進(jìn)的拍攝數(shù)字化設(shè)備固然重要，但是傳輸設(shè)備對信號起著重大重要，也就是不解決傳輸設(shè)備對信號滯后的這個問題，那么問題就嚴(yán)重了，所以光端機(jī)用途的起著非常重要作用總得來說，市級電視臺采用模擬設(shè)備進(jìn)行傳輸，由于元器件的老化而使設(shè)備的不穩(wěn)定因素明顯增加，經(jīng)常造成傳輸中斷，嚴(yán)重影響信號的正常傳輸及質(zhì)量。所以，在充分考慮設(shè)備先進(jìn)性、兼容性、整體配套性的基礎(chǔ)上，信號傳輸系統(tǒng)采取以數(shù)字設(shè)備為主，將具有使用模擬設(shè)備所無法比擬的優(yōu)勢。數(shù)字光端機(jī)比較容易實現(xiàn)多通道、多種信號的混合傳輸。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南光端機(jī)的價格,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469289012058980/8102049.png"></div><p style="text-indent:25px">目前國內(nèi)視頻光端機(jī)生產(chǎn)企業(yè)主要有3類。一類是依靠較強(qiáng)的光通信技術(shù)立足的通信企業(yè)，這些企業(yè)技術(shù)基礎(chǔ)較好，企業(yè)規(guī)模大多數(shù)屬于中等(年銷售額在5000萬左右)，這一類也包括兼營視頻光端機(jī)的通信廠家，他們是這個子行業(yè)的重點(diǎn)企業(yè)。一類是一些安防行業(yè)中規(guī)模較大的綜合性視頻監(jiān)控廠家，視頻光端機(jī)只是其產(chǎn)品鏈中的一環(huán)，這類企業(yè)規(guī)模較大、綜合技術(shù)實力較強(qiáng)，視頻光端機(jī)在其產(chǎn)值的比重多少不一。第三類是加工型企業(yè)，數(shù)目較多。由于光端機(jī)行業(yè)技術(shù)門檻較低，一兩個從光通訊企業(yè)離職的設(shè)計開發(fā)人員就能成立一家企業(yè)，以小作坊的方式組裝生產(chǎn)視頻光端機(jī)，視頻光端機(jī)是其主要產(chǎn)品，在這類企業(yè)中仿冒產(chǎn)品盛行。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)。北京網(wǎng)絡(luò)光端機(jī)工作原理</p><p style="text-indent:25px">光端機(jī)是用來將光信號和電信號互相轉(zhuǎn)換的一種設(shè)備,對所傳信號不會進(jìn)行任何壓縮.河南光端機(jī)的價格</p><p style="text-indent:25px">光口連接型式，視頻光端機(jī)與光纖網(wǎng)絡(luò)的連接頭可分為:FC、SC、ST、LC、D4、DIN、MU、MT 等型式，按光纖端面形狀分有FC、PC(包括SPC 或UPC)和APC 等類型。目前應(yīng)用較廣的只有FC、SC 和ST 三種。一般長距離或大容量通信大多使用FC或SC 型連接器，其優(yōu)點(diǎn)是插入損失小、安裝容易、穩(wěn)定性高。其中又以FC連接頭更好，由于它采用螺紋緊固，能提供穩(wěn)定可靠的連接。SC 連接頭是插撥式的，多次插拔之后連接頭的可靠性會降低。短距離信號傳輸則較多用ST 型連接器，且多用于多模系統(tǒng)，因為其精度要求不高，成本也就較低。河南光端機(jī)的價格</p><p style="text-indent:25px">煙臺市正維通信技術(shù)有限公司致力于通信產(chǎn)品，以科技創(chuàng)新實現(xiàn)***管理的追求。煙臺正維通信技術(shù)擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊，以高度的專注和執(zhí)著為客戶提供工業(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。煙臺正維通信技術(shù)不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。煙臺正維通信技術(shù)創(chuàng)始人程雷，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2996312.html</p></div></div></div></div></div><div id="mby37kw" class="page-right twoColRt"><div id="t8yv3wy" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dxzry23" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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