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src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287030767037/6055633.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qjkyju8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287030767037/6055633.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="yvwizj3" 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>無錫光纖光端機(jī)的價(jià)格,光端機(jī)</p><p><span>***更新：</span>2021-02-01 03:18:53</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="wjf8tqc" 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="p8fojfb" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="lqmyzvm" class="box"><p><p style="text-indent:25px">其中一部分技術(shù)在光端機(jī)市場(chǎng)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，無錫光纖光端機(jī)的價(jià)格、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，無錫光纖光端機(jī)的價(jià)格，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。常說的光端機(jī)指的是用于監(jiān)控系統(tǒng)用來傳輸視頻、數(shù)據(jù)，無錫光纖光端機(jī)的價(jià)格、以太網(wǎng)、音頻等綜合信息的光端機(jī)。主要分模擬光端機(jī)和數(shù)字光端機(jī)?；趥鬏?shù)慕橘|(zhì)的不同有單模光端機(jī)和多模光端機(jī)之分。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。無錫光纖光端機(jī)的價(jià)格</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫光纖光端機(jī)的價(jià)格,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287030767037/6055633.png"></div><p style="text-indent:25px">電話光端機(jī)的電話雜音聲過大我司的設(shè)備，電話都是達(dá)到電信級(jí)別，通話聲音是特別清晰的。如果電話光端機(jī)的電話雜音聲過大可能是電話光端機(jī)的光口有誤碼引起的。一般應(yīng)該是光端機(jī)有誤碼引起的，產(chǎn)生誤碼的原因主要是光纖部分，因?yàn)橐话阍O(shè)備一般發(fā)貨前，都是檢測(cè)完才發(fā)貨的。首先我們要確認(rèn)下光纜實(shí)際距離是否在光端機(jī)傳輸距離之內(nèi)。再測(cè)試光纜衰以及光端機(jī)本身發(fā)光功率和靈敏度，檢查光纖跳線是否插好。檢測(cè)設(shè)備周圍是否有電磁輻射等干擾源，設(shè)備是否完好接地。無錫光纖光端機(jī)的價(jià)格視頻光端機(jī)又分為模擬光端機(jī)和數(shù)字光端機(jī)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫光纖光端機(jī)的價(jià)格,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469288899057030/8487397.png"></div><p style="text-indent:25px">光端光端機(jī)分3類：PDH，SPDH，SDH。　　PDH（Plesiochronous Digital Hierarchy，準(zhǔn)同步數(shù)字系列）光端機(jī)是小容量光端機(jī)，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。　　SDH（Synchronous Digital Hierarchy，同步數(shù)字系列）光端機(jī)容量較大，一般是16E1到4032E1。　　SPDH（Synchronous Plesiochronous Digital Hierarchy）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)）。機(jī)分3類：PDH，SPDH，SDH。</p><p style="text-indent:25px">錄視頻光端機(jī)應(yīng)用范圍：智能交通監(jiān)控系統(tǒng)(ITS)，遠(yuǎn)程多媒體教學(xué)/ 校園監(jiān)控，大型廠礦企業(yè)安防監(jiān)控系統(tǒng)，平安城市高清晰監(jiān)控系統(tǒng)，高速公路監(jiān)控/通信系統(tǒng)，小區(qū)智能監(jiān)控系統(tǒng)，電力/水力安全監(jiān)控系統(tǒng)，隧道通信對(duì)講及監(jiān)控系統(tǒng)，電視電話會(huì)議傳輸系統(tǒng)，長距離廣播電視傳輸系統(tǒng)，樓宇可視對(duì)講控制系統(tǒng)，綜合布線系統(tǒng)，通信。用戶在選擇4路視頻光端機(jī)時(shí)應(yīng)注意它的視頻帶寬和APL范圍。視頻帶寬要足夠?qū)?，視頻帶寬不足，監(jiān)視畫面細(xì)節(jié)部分就不夠清晰，水平分辨率就低，嚴(yán)重的甚至出現(xiàn)色彩失真或丟失;APL，即圖像平均電平，一個(gè)測(cè)量平均視頻亮度電平并表示為較大的白電平的百分比的方法。當(dāng)APL低時(shí)，圖像就暗，當(dāng)APL高時(shí)，圖像就亮。同時(shí)還要注重視頻光端機(jī)廠家的售后服務(wù)。光端機(jī)，電信非壓縮光端機(jī)，就是將多個(gè)E1信號(hào)變成光信號(hào)并傳輸?shù)脑O(shè)備。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="無錫光纖光端機(jī)的價(jià)格,光端機(jī)" src="https://tyunfile.71360.com/WaterMark/UploadFile/zhengwei123/637469287629533119/9462530.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。光端機(jī)設(shè)備內(nèi)設(shè)置有微處理器，監(jiān)測(cè)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。上海光纖光端機(jī)與光纖收發(fā)器區(qū)別</p><p style="text-indent:25px">光纖網(wǎng)絡(luò)拓?fù)浞绞?，光纖網(wǎng)絡(luò)拓?fù)浞绞經(jīng)Q定了視頻光端機(jī)類型。無錫光纖光端機(jī)的價(jià)格</p><p style="text-indent:25px">以太網(wǎng)光端機(jī)主要特點(diǎn)有哪些？以太網(wǎng)光端機(jī)，他是一種10/100Mbps智能自適應(yīng)快速以太網(wǎng)光電轉(zhuǎn)換器，實(shí)現(xiàn)在雙絞線和光纖兩種不同網(wǎng)絡(luò)傳輸介質(zhì)之間傳輸數(shù)據(jù)。以太網(wǎng)光端機(jī)主要特點(diǎn) 1．提供較低延時(shí)的數(shù)據(jù)傳輸。 2．對(duì)網(wǎng)絡(luò)協(xié)議完全透明。 3．采用ASIC芯片實(shí)現(xiàn)數(shù)據(jù)線速轉(zhuǎn)發(fā)?？删幊藺SIC將多項(xiàng)功能集中到一個(gè)芯片上，具有設(shè)計(jì)簡(jiǎn)單、可靠性高、電源消耗少等優(yōu)點(diǎn)，能使設(shè)備得到更高的性能和更低的成本。 4．機(jī)架型設(shè)備可提供熱拔插功能，便于維護(hù)和無間斷升級(jí)。 5．可網(wǎng)管設(shè)備能提供網(wǎng)絡(luò)診斷、升級(jí)、狀態(tài)報(bào)告、異常情況報(bào)告及控制等功能，能提供完整的操作日志和報(bào)警日志。 6．設(shè)備多采用1+1的電源設(shè)計(jì)，支持超寬電源電壓，實(shí)現(xiàn)電源保護(hù)和自動(dòng)切換。 7．支持超寬的工作溫度范圍。 8．支持齊全的傳輸距離（0～120公里）。無錫光纖光端機(jī)的價(jià)格</p><p 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