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src="https://tyunfile.71360.com/UploadFile/sztykc/637242902002167968/9474477.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="c8hoa8m" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242902002167968/9474477.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cmr9mrs" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關鍵詞：</span>浙江華為光端機型號</p><p><span>***更新：</span>2020-06-16 00:53:36</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="r9ntkye" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市騰云科創(chuàng)信息咨詢有限公司</a></p><p><span>聯(lián)系人：</span>夏永 </p><p><span>郵箱: </span>87993378@qq.com</p><p><span>電話: </span>16625147809</p><p><span>傳真: </span>1550_</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>1550-2042477</p><p><span>地址: </span>沙井街道蠔四社區(qū)街尾塘一巷5號幸福家園A棟、B棟、C棟、D棟D棟110D</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="dx3g38u" class="page-proshow02"><p class="title">詳細說明</p><div id="3cqwdpg" class="box"><p><p><p> SDH 光傳輸設備 </p> <p> SDH（Synchronous Digital Hierarchy，同步數(shù)字系列） </p> <p> 是 PDH 的改進版，它的發(fā)明是電信傳輸體制的**之一，原因在于它可以對同步信號進行傳送、分插、交叉連接和復用，不僅可以通過衛(wèi)星、光纖，還可以微波等進行傳送，是一種新的傳輸體制。SDH 光纖通信技術在電力系統(tǒng)中廣泛應用，而且在不斷迅速發(fā)展，但是要想保障電力通信網(wǎng)的可靠，就必須保證網(wǎng)絡設備的正常運轉，但是設備的故障在所難免，因此，有必要提高對網(wǎng)絡設備的維護能力，出現(xiàn)問題可以及時解決，這樣就能使其更好的為電力的網(wǎng)絡建設和信息傳輸服務。因此，有必要提高通信維護人員的理論水平，提高其的業(yè)務熟練度，比如：掌握和 SDH 相關的基本理論知識、出現(xiàn)問題時各種警告代號的含義和解決措施和警告信號的來龍去脈和影響等等。同時還要熟悉網(wǎng)絡的基本概念，比如系統(tǒng)配置，數(shù)據(jù)的采集和傳輸，同時加強分析故障和解決故障的能力。 </p> <p> <br /> </p></p><p><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242902004560546/1392138.jpg" /></p><p><p> SDH 光傳輸設備 </p> <p> SDH（Synchronous Digital Hierarchy，同步數(shù)字系列） </p> <p> 是 PDH 的改進版，它的發(fā)明是電信傳輸體制的**之一，原因在于它可以對同步信號進行傳送、分插、交叉連接和復用，不僅可以通過衛(wèi)星、光纖，還可以微波等進行傳送，是一種新的傳輸體制。SDH 光纖通信技術在電力系統(tǒng)中廣泛應用，而且在不斷迅速發(fā)展，但是要想保障電力通信網(wǎng)的可靠，就必須保證網(wǎng)絡設備的正常運轉，但是設備的故障在所難免，因此，有必要提高對網(wǎng)絡設備的維護能力，出現(xiàn)問題可以及時解決，這樣就能使其更好的為電力的網(wǎng)絡建設和信息傳輸服務。因此，有必要提高通信維護人員的理論水平，提高其的業(yè)務熟練度，比如：掌握和 SDH 相關的基本理論知識、出現(xiàn)問題時各種警告代號的含義和解決措施和警告信號的來龍去脈和影響等等。同時還要熟悉網(wǎng)絡的基本概念，比如系統(tǒng)配置，數(shù)據(jù)的采集和傳輸，同時加強分析故障和解決故障的能力。 </p> <p> <br /> </p></p><p><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242902004560546/1392138.jpg" /></p><p><p> 1、SDH傳輸系統(tǒng)在國際上有統(tǒng)一的幀結構，數(shù)字傳輸標準速率和標準的光路接口，使網(wǎng)管系統(tǒng)互通，因此有很好的橫向兼容性，它能與現(xiàn)有的PDH完全兼容，并容納各種新的業(yè)務信號，形成了全球統(tǒng)一的數(shù)字傳輸體制標準，提高了網(wǎng)絡的可靠性； </p> <p> 2、SDH接入系統(tǒng)的不同等級的碼流在幀結構凈負荷區(qū)內(nèi)的排列非常有規(guī)律，而凈負荷與網(wǎng)絡是同步的，它利用軟件能將高速信號一次直接分插出低速支路信號，實現(xiàn)了一次復用的特性，克服了PDH準同步復用方式對全部高速信號進行逐級分解然后再生復用的過程，由于**簡化了DXC，減少了背靠背的接口復用設備，改善了網(wǎng)絡的業(yè)務傳送透明性； </p> <p> 3、由于采用了較先進的分插復用器（ADM）、數(shù)字交叉連接（DXC）、網(wǎng)絡的自愈功能和重組功能就顯得非常強大，具有較強的生存率。因SDH幀結構中安排了信號的5%開銷比特，它的網(wǎng)管功能顯得特別強大，并能統(tǒng)一形成網(wǎng)絡管理系統(tǒng)，為網(wǎng)絡的自動化、智能化、信道的利用率以及降低網(wǎng)絡的維管費和生存能力起到了積極作用； </p> <p> <br /> </p></p><p><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242902003447265/4782887.jpg" /></p><p>深圳騰云科創(chuàng)信息咨詢有限公司，成立于2015年專業(yè)從事通信產(chǎn)品購銷以及施工，維護，產(chǎn)品維修，計算機系統(tǒng)集成施工。公司擁有專業(yè)的技術團隊，由廠家(中興通訊，華為技術，烽火通信)服務10年以上從業(yè)經(jīng)驗的技術****，并有多名專業(yè)技術人員為您提供專業(yè)的商務技術和專業(yè)解決方案。公司主營中興通訊及華為技術各系列產(chǎn)品板件及整套設備的銷售與安裝，設備維護及板件返修，以及各設備可配置的單板，用戶電纜，中繼電纜等。公司業(yè)務涉及交通、金融、教育、衛(wèi)生、科研等系統(tǒng)已經(jīng)建立了牢固的業(yè)務合作伙伴關系。積極面向市場為廣大行業(yè)用戶提供設計、安裝、調(diào)試、培訓、維護的“一條龍"服務。本公司以質(zhì)量的服務、良好的信譽、雄厚的技術力量為廣大客戶提供質(zhì)量服務。</p><div style="width:100%;text-align: 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