福建PDH光端機報價工業(yè)交換機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="光端機在安防領(lǐng)域有著重要的地位光端機在目前安防系統(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，他解決遠距離傳輸和大容量傳輸。因為前端攝像頭等采集源的接口不同，光端機必須成對使用，一個光端機把前端的輸入信號轉(zhuǎn)換成光信號，另一個光端機再"><meta name="keywords" content="福建PDH光端機報價,光端機"><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" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" 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href="http://www.cdcfah.com/cp/third-csjhsb_gdjlh/">光端機</a>?福建PDH光端機報價工業(yè)交換機煙臺市正維通信技術(shù)供應(yīng)</p><div id="gevhtpg" class="leftbox clearfix"><h1>福建PDH光端機報價工業(yè)交換機煙臺市正維通信技術(shù)供應(yīng)</h1><div id="wamd37m" class="proBig"><div id="bk7entk" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287379936019/9767986.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="f8xevrn" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287379936019/9767986.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dwklxde" 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>福建PDH光端機報價,光端機</p><p><span>***更新：</span>2021-01-25 06:19:29</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="vzl3pms" 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: </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="xutcija" class="page-proshow02"><p class="title">詳細說明</p><div id="2va2hnj" class="box"><p><p style="text-indent:25px">光端機在安防領(lǐng)域有著重要的地位光端機在目前安防系統(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，他解決遠距離傳輸和大容量傳輸。因為前端攝像頭等采集源的接口不同，光端機必須成對使用，一個光端機把前端的輸入信號轉(zhuǎn)換成光信號，另一個光端機再把光信號還原成輸入信號送給終端。這也意味著在安防施工的過程中，針對每一個布點線路我們都必須配用一對光端機。在安防解決方案中，各個方向的布點數(shù)據(jù)，都會匯集到監(jiān)控中心，如果我們能對光端機進行整合，在光端機的設(shè)計中也引入交換機的概念，采用一個多路光端機來接入來自不同布點線路的光信號，我們就可以省去一半數(shù)量的光端機，對大型項目來說可以大量節(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，福建PDH光端機報價，多模形式在視頻圖像傳輸時，福建PDH光端機報價，福建PDH光端機報價，帶寬(針對模擬調(diào)制)和傳輸速率(針對數(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)字光端機在傳輸距離、容量方面的應(yīng)用。光纖中只有"有光"和"無光"兩種狀態(tài)，對光源線性要求不高或幾乎沒有要求，避免了信號在處理過程中的損失。福建PDH光端機報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建PDH光端機報價,光端機" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287379936019/9767986.png"></div><p style="text-indent:25px">數(shù)據(jù)光端機多采用TDM和SDM技術(shù)有效的復(fù)用了多種窄帶業(yè)務(wù)，但對于非壓縮視頻的接入突顯不足，為了解決視頻傳輸?shù)膯栴}人們引入了視頻光端機。四路視頻數(shù)字復(fù)用光端機采用國際數(shù)字視頻及光纖傳輸技術(shù)，將4路視頻信號在單芯光纖實時同步、無失真、高質(zhì)量地傳輸。4路視頻光端機采用全數(shù)字視頻無壓縮傳輸技術(shù)，高質(zhì)量的視頻效果, 即插即用的設(shè)計使得安裝簡便易行, 無需進行現(xiàn)場調(diào)節(jié), 其光模塊和重點電路均采用進口元器件，穩(wěn)定性高，所有的光、電接口均符合國際標準，適用于不同的工作環(huán)境。該光端機帶有視頻狀態(tài)指示,可監(jiān)控系統(tǒng)的正常運行。河南環(huán)網(wǎng)光端機與光纖收發(fā)器區(qū)別模擬視頻光端機與數(shù)字光端機穩(wěn)定性不同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建PDH光端機報價,光端機" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287629533119/9462530.png"></div><p style="text-indent:25px">光端機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。這個時候光端機就在這里發(fā)揮重大作用了！因此，先進的拍攝數(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，那么問題就嚴重了，所以光端機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。</p><p style="text-indent:25px">◆ 插卡式或單獨結(jié)構(gòu),適用集中管理4U機架 ◆ 10 位數(shù)字編碼及無壓縮式視頻傳輸 ◆ 支持任何高的分辯率視頻信號 ◆ 5Hz-10MHz 視頻通道 ◆ 自動兼容PAL 、NTSC 、SECAM 視頻制式 ◆ 帶APC 電路，輸出光功率恒定，動態(tài)范圍大 ◆ 千兆光纖傳輸，大容量，易升級 ◆ 電源和其它參數(shù)狀態(tài)指示的LED 可監(jiān)視系統(tǒng)的運行狀況 ◆ 支持視頻無損再生中繼 ◆ 先進自適應(yīng)技術(shù)，使用時無需進行現(xiàn)場的電氣或光學調(diào)節(jié) ◆ 工業(yè)級設(shè)計，模塊化設(shè)計使設(shè)備可靠靈活 ◆ 可自動恢復(fù)電源熔斷絲 ◆ 全內(nèi)置電源、機殼設(shè)計外觀獨特，外殼尺寸大小(200mmX140mmX40mm) ◆ 內(nèi)部電源功耗:4.5 w(Input:AC140 ~ 260V 模擬調(diào)頻、調(diào)幅、調(diào)相光端機在市場初期的傳輸方式是將基帶的視頻、音頻、數(shù)據(jù)等信號調(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="福建PDH光端機報價,光端機" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288413839434/2299527.png"></div><p style="text-indent:25px">其中一部分技術(shù)在光端機市場還很小時就已比較成熟，開發(fā)新技術(shù)又需耗費大量人力、物力，所以光端機生產(chǎn)廠家多以中小企業(yè)為主，各種品牌層出不窮，但質(zhì)量卻大相徑庭。視頻監(jiān)控中的光端機是光通信系統(tǒng)中的傳輸設(shè)備，主要是進行光電轉(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€行業(yè)有著廣的應(yīng)用。常說的光端機指的是用于監(jiān)控系統(tǒng)用來傳輸視頻、數(shù)據(jù)、以太網(wǎng)、音頻等綜合信息的光端機。主要分模擬光端機和數(shù)字光端機?；趥鬏?shù)慕橘|(zhì)的不同有單模光端機和多模光端機之分。數(shù)字光端機受環(huán)境干擾較小，傳輸質(zhì)量高。福建PDH光端機報價</p><p style="text-indent:25px">數(shù)字光端機的視頻采用8位數(shù)字編碼。福建PDH光端機報價</p><p style="text-indent:25px">模擬光端機與數(shù)字光端機處理方式的不同，引起的視頻、音頻、數(shù)據(jù)信號信號失真、變畸變、干擾不同。模擬光端機由于要進行調(diào)幅、調(diào)頻、調(diào)相，所以模擬信號的幅度的變化與載波信號因調(diào)制而引起的幅度變化是否為一一對應(yīng)的線形關(guān)系成為擬光端機質(zhì)量好壞的關(guān)鍵，到目前為止，很難做到真正線性調(diào)制，非線形必同時調(diào)制好的載波信號還要調(diào)制光信號，光信號的非線性也是一個非常重要的因素，眾所周知，光器件的非線性工作電壓的穩(wěn)定性、光發(fā)射功率有很大的影響，因此光器件在生產(chǎn)時需進行7-10天的熱循環(huán)老化等等工藝選只能做到將這種變換控制在一定的范圍；光信號在光纖中長距離傳輸，會引起光信號的功率衰減，傳輸頻率漂移信號色散效應(yīng)同樣也會引起光信號畸變；光信號到達接收端，接收光器件仍然要引起非線性失真，由光電轉(zhuǎn)換后解調(diào)，解調(diào)與調(diào)制一樣會產(chǎn)生非線性畸變。所以綜合模擬光端機，從輸入信號調(diào)制-電光轉(zhuǎn)換-光輸出-光電轉(zhuǎn)換-都會引起非線形失真，而這些信號畸變失真是固有的，所以也必然是不可消除的，因此模擬光端機傳輸視頻圖象據(jù)的效果很難達到很滿意的效果。數(shù)字式光端機只是只有模數(shù)轉(zhuǎn)換的量化誤差(如1V視頻信號12bits時只是為2起信號畸變。福建PDH光端機報價</p><p style="text-indent:25px">煙臺市正維通信技術(shù)有限公司總部位于中國(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，是一家目前正維通信的用戶已遍布電力、煤礦、軌道交通、高速公路、鋼鐵冶金、石油化工、城市智能交通、水處理等行業(yè)，正維通信通過覆蓋國內(nèi)30個省、市、自治區(qū)的銷售機構(gòu)和數(shù)十個重要的合作伙伴，使迅速響應(yīng)用戶需求成為現(xiàn)實，向客戶提供完善的售前支持和貼心的售后服務(wù)。的公司。公司自創(chuàng)立以來，投身于工業(yè)交換機，以太網(wǎng)交換機，環(huán)網(wǎng)交換機，光纖收發(fā)器，是通信產(chǎn)品的主力軍。煙臺正維通信技術(shù)始終以本分踏實的精神和必勝的信念，影響并帶動團隊取得成功。煙臺正維通信技術(shù)始終關(guān)注通信產(chǎn)品市場，以敏銳的市場洞察力，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3001621.html</p></div></div></div></div></div><div id="ibnwhtp" class="page-right twoColRt"><div id="igsearn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="s7wiulc" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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