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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="dboq2hz" class="twoCol"><div id="l28rols" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://m.cdcfah.com/cp/second-txcp_csjhsb/">傳輸、交換設(shè)備</a>?<a href="http://m.cdcfah.com/cp/third-csjhsb_gdjlh/">光端機(jī)</a>?云南視頻光端機(jī)交換機(jī) 工業(yè)交換機(jī) 煙臺(tái)市正維通信技術(shù)供應(yīng)</p><div id="az38cuw" class="leftbox clearfix"><h1>云南視頻光端機(jī)交換機(jī) 工業(yè)交換機(jī) 煙臺(tái)市正維通信技術(shù)供應(yīng)</h1><div id="yinuwiu" class="proBig"><div id="8gdapg2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287259766811/5815066.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="l3holix" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287259766811/5815066.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ltqwyp7" 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>云南視頻光端機(jī)交換機(jī),光端機(jī)</p><p><span>***更新：</span>2021-01-31 03:21:15</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nwtvced" 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="mo29p28" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dr8kbik" class="box"><p><p style="text-indent:25px">光端機(jī)的技術(shù)分類有哪些? 一般分分類吧：PDH光端、SDH光端機(jī)、SPDH光端機(jī)。讓我們老普及下吧！ PDH光端 PDH(PlesiochronousDigitalHierarchy，準(zhǔn)同步數(shù)字系列)光端機(jī)是以超大規(guī)模集成電路構(gòu)成的120路光電合一傳輸設(shè)備，一般是成對(duì)應(yīng)用，也叫點(diǎn)到點(diǎn)應(yīng)用，容量一般為4E1，8E1，16E1;適用于小容量交換機(jī)組網(wǎng)、用戶環(huán)路網(wǎng)，移動(dòng)通信(基站)、專網(wǎng)、DDN網(wǎng)等。其主要特點(diǎn)是：采用超大規(guī)模集成芯片，具有功耗低，可靠性高的特點(diǎn)。提供E1的遠(yuǎn)端環(huán)回測試功能，維護(hù)方便，云南視頻光端機(jī)交換機(jī)。120提供4個(gè)E1通道;具有完備的告警功能，可顯示本端和遠(yuǎn)端告警。告警信息(包括掉電告警)可通過網(wǎng)管通道上報(bào)到對(duì)端，云南視頻光端機(jī)交換機(jī)。采用收發(fā)一體光器件，工作性能穩(wěn)定可靠。整機(jī)單板設(shè)計(jì)體積小巧，云南視頻光端機(jī)交換機(jī)，使用方便。根據(jù)光纖傳輸網(wǎng)絡(luò)拓?fù)湫褪匠蛇x擇傳統(tǒng)的點(diǎn)對(duì)點(diǎn)傳輸光端機(jī)外，還有節(jié)點(diǎn)式和環(huán)網(wǎng)式光端機(jī)可供選擇。云南視頻光端機(jī)交換機(jī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南視頻光端機(jī)交換機(jī),光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287259766811/5815066.png"></div><p style="text-indent:25px">4路視頻光端機(jī)在面對(duì)瞬間干擾時(shí)，需要很強(qiáng)的抵抗力才能有效的避免破壞。各個(gè)廠家根據(jù)設(shè)備的保護(hù)使用不同的措施，使4路視頻光端機(jī)具有更強(qiáng)的使用壽命。 (1)、4路視頻光端機(jī)瞬態(tài)干擾的危害:由于它干擾頻率高、持續(xù)時(shí)間短、干擾幅度大(成百上千伏)、它可以燒壞4路視頻光端機(jī)的RS-485接口芯片、主芯片等關(guān)鍵部位，卻不留痕跡，尤其是夏季雷雨季節(jié)，這種破壞力影響很大，使用戶、商家和廠家都十分傷腦筋。 (2)、4路視頻光端機(jī)瞬態(tài)干擾的產(chǎn)生:瞬態(tài)干擾產(chǎn)生于大型感性負(fù)載，如電機(jī)、變壓器、繼電器等設(shè)備的開關(guān)轉(zhuǎn)換，以及雷電的發(fā)生過程中，它往往以靜電感應(yīng)的方式入侵4路視頻光端機(jī)。 (3)、4路視頻光端機(jī)瞬態(tài)干擾的解決方法:盡管4路視頻光端機(jī)制造商采用了各種保護(hù)手段，如隔離法(光耦隔離)、旁路法(自恢復(fù)二極管)、吸收法(雙向避免二極管等)，這些基本可以有效的解決瞬態(tài)干擾造成的破壞。光耦隔離是指光耦隔離電路使被隔離的兩部分電路之間沒有電的直接連接，主要是防止因有電的連接而引起的干擾，特別是低壓的控制電路與外部高壓電路之間。福建數(shù)字視頻光端機(jī)價(jià)格模擬光端機(jī)采用了PFM調(diào)制技術(shù)實(shí)時(shí)傳輸圖象信號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南視頻光端機(jī)交換機(jī),光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288413839434/2299527.png"></div><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。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，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，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?，在各個(gè)行業(yè)有著廣的應(yīng)用。</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！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**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)。模擬調(diào)頻、調(diào)幅、調(diào)相光端機(jī)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(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="云南視頻光端機(jī)交換機(jī),光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287379936019/9767986.png"></div><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(shí)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(duì)電視節(jié)目的需求日益提高，不只是收到電視信號(hào)就可以了，還要求完美的畫面和逼真的聲音。這個(gè)時(shí)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(duì)信號(hào)起著重大重要，也就是不解決傳輸設(shè)備對(duì)信號(hào)滯后的這個(gè)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(jí)電視臺(tái)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(hào)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(hào)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。模擬視頻光端機(jī)與數(shù)字光端機(jī)穩(wěn)定性不同。福建專業(yè)光端機(jī)生產(chǎn)廠家</p><p style="text-indent:25px">光端機(jī)設(shè)備內(nèi)設(shè)置有微處理器，監(jiān)測系統(tǒng)內(nèi)部工作狀態(tài)采集模塊的各種參數(shù)，并通過LED和VFD顯示系統(tǒng)直觀顯示。云南視頻光端機(jī)交換機(jī)</p><p style="text-indent:25px">當(dāng)前，通信產(chǎn)品正處于系統(tǒng)創(chuàng)新和智能帶領(lǐng)的重大變革期，大數(shù)據(jù)、云計(jì)算、人工智能、物聯(lián)網(wǎng)、 5G 等新技術(shù)持續(xù)突破，并與制造、能源、材料、空間等技術(shù)交叉融合，新產(chǎn)品、新模式、新業(yè)態(tài)層出不窮，推動(dòng)人類發(fā)展加速步入智能時(shí)代。中美貿(mào)易摩擦可能導(dǎo)致工業(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)器格局生變。而隨著美韓市場5G率先加入，愛立信、諾基亞等有望先受益。但由于全球運(yùn)營商經(jīng)營面臨壓力，個(gè)別地區(qū)禁購中國設(shè)備事宜仍有轉(zhuǎn)機(jī)。同時(shí)，自主可控更加緊迫，給北斗導(dǎo)航、天通通信、網(wǎng)絡(luò)安全帶來機(jī)會(huì)。近些年受益于中國基礎(chǔ)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(gè)省、市、自治區(qū)的銷售機(jī)構(gòu)和數(shù)十個(gè)重要的合作伙伴，使迅速響應(yīng)用戶需求成為現(xiàn)實(shí)，向客戶提供完善的售前支持和貼心的售后服務(wù)。和通信技術(shù)發(fā)展，中國的電信用戶維持上升趨勢，但是內(nèi)部出現(xiàn)了分化，固定電話用戶數(shù)量一直下降趨勢，而移動(dòng)寬帶用戶(即3G和4G用戶)維持上升趨勢。有限責(zé)任公司企業(yè)技術(shù)的發(fā)展必然將引發(fā)現(xiàn)有通信網(wǎng)絡(luò)的擴(kuò)容、重組與兼容，也將促進(jìn)通信網(wǎng)絡(luò)的多元化業(yè)務(wù)發(fā)展，并**終對(duì)通信設(shè)備制造業(yè)、終端產(chǎn)業(yè)和通信技術(shù)服務(wù)業(yè)等上下游產(chǎn)業(yè)形成有力拉動(dòng)。云南視頻光端機(jī)交換機(jī)</p><p style="text-indent:25px">煙臺(tái)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(yàn)區(qū)煙臺(tái)片區(qū)煙臺(tái)開發(fā)區(qū)珠江路42號(hào)，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(gè)省、市、自治區(qū)的銷售機(jī)構(gòu)和數(shù)十個(gè)重要的合作伙伴，使迅速響應(yīng)用戶需求成為現(xiàn)實(shí)，向客戶提供完善的售前支持和貼心的售后服務(wù)。的公司。煙臺(tái)正維通信技術(shù)深耕行業(yè)多年，始終以客戶的需求為向?qū)?，為客戶提?**的工業(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(tái)正維通信技術(shù)始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。煙臺(tái)正維通信技術(shù)始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使煙臺(tái)正維通信技術(shù)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/3088385.html</p></div></div></div></div></div><div id="q2seln3" class="page-right twoColRt"><div id="2tq3vpr" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="87hzbta" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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