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href="http://m.cdcfah.com/cp/third-txcp_jrsbtn/">接入設(shè)備</a>?江蘇烽火CONT 深圳市騰云科創(chuàng)供應(yīng)</p><div id="3xegaxe" class="leftbox clearfix"><h1>江蘇烽火CONT 深圳市騰云科創(chuàng)供應(yīng)</h1><div id="ywovxeg" class="proBig"><div id="akm3q4x" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ti8xuls" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cf9ebik" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江蘇烽火CONT</p><p><span>***更新：</span>2020-05-27 00:48:47</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="0rtv3ax" 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(jī): </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(hào)幸福家園A棟、B棟、C棟、D棟D棟110D</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="ajdpgs7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="sr4p83v" class="box"><p><p style="text-indent:25px">1.近年來(lái)，江蘇烽火CONT，SDH作為新一代理想的傳輸體系，具有路由自動(dòng)選擇能力，上下電路方便，維護(hù)、控制、管理功能強(qiáng)，標(biāo)準(zhǔn)統(tǒng)一，便于傳輸更高速率的業(yè)務(wù)等優(yōu)點(diǎn)，能很好地適應(yīng)通信網(wǎng)飛速發(fā)展的需要。SDH技術(shù)與一些先進(jìn)技術(shù)相結(jié)合，如光波分復(fù)用（WDM）、ATM技術(shù)、Internet技術(shù)（IP over SDH）等，使SDH網(wǎng)絡(luò)的作用越來(lái)越大，江蘇烽火CONT。SDH已被各國(guó)列入21世紀(jì)高速通信網(wǎng)的應(yīng)用項(xiàng)目，是電信界公認(rèn)的數(shù)字傳輸網(wǎng)的發(fā)展方向，具有遠(yuǎn)大的商用前景。深圳市騰云科創(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(gòu)銷以及施工，維護(hù)，產(chǎn)品維修，計(jì)算機(jī)系統(tǒng)集成施工。為客戶提供質(zhì)量產(chǎn)品、完善的解決方案，江蘇烽火CONT，積極響應(yīng)配合客戶做好售后服務(wù)，在業(yè)界贏得廣大客戶認(rèn)可及一致好評(píng)。努力奉獻(xiàn)，您的滿意是我們一直的追求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇烽火CONT" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> 免除了**困難的光纜輔設(shè)工程，比較適用于具有大規(guī)模用戶的企業(yè)。又如委托公眾網(wǎng)**為本企業(yè)或部門使用的虛擬**網(wǎng)，它所提供的功能和容量完全按照用戶的要求進(jìn)行，這就免除了全部的投資風(fēng)險(xiǎn)和維護(hù)工作，應(yīng)用機(jī)動(dòng)靈活，使用部門可以專心致力于其本行業(yè)的業(yè)務(wù)工作。 </p> <p> 廣而言之，把企業(yè)非**的服務(wù)性職能交給社會(huì)的專業(yè)部門經(jīng)營(yíng)，而集中力量從事自己的**業(yè)務(wù)，甚至**所謂的虛擬公司，這已經(jīng)成為上世紀(jì)90年代以來(lái)西方國(guó)家的企業(yè)為提高其競(jìng)爭(zhēng)力而公認(rèn)的世界性潮流?？傊?，依托穩(wěn)定的服務(wù)主體，有條件積極取得進(jìn)入電信市場(chǎng)競(jìng)爭(zhēng)的合法地位，或與公網(wǎng)聯(lián)合，間接進(jìn)軍電信市場(chǎng)，是目前形勢(shì)下各大專網(wǎng)的主要選擇；這也是電信技術(shù)**的必然產(chǎn)物，更是我國(guó)由計(jì)劃經(jīng)濟(jì)向市場(chǎng)經(jīng)濟(jì)轉(zhuǎn)變的要求。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇烽火CONT" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105136719/8556415.jpg"></div><p> SDH的特點(diǎn) </p> <p> SDH是數(shù)字傳輸體制上繼PDH之后的一次劃時(shí)代的飛躍。SDH之所以能夠快速發(fā)展這是與它自身的特點(diǎn)是分不開(kāi)的，其具體特點(diǎn)如下： </p> <p> （1）SDH傳輸系統(tǒng)在國(guó)際上有統(tǒng)一的幀結(jié)構(gòu)，數(shù)字傳輸標(biāo)準(zhǔn)速率和標(biāo)準(zhǔn)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(wù)信號(hào)，形成了全球統(tǒng)一的數(shù)字傳輸體制標(biāo)準(zhǔn)，提高了網(wǎng)絡(luò)的可靠性； </p> <p> （2）SDH接入系統(tǒng)的不同等級(jí)的碼流在幀結(jié)構(gòu)凈負(fù)荷區(qū)內(nèi)的排列非常有規(guī)律，而凈負(fù)荷與網(wǎng)絡(luò)是同步的，它利用軟件能將高速信號(hào)一次直接分插出低速支路信號(hào)，實(shí)現(xiàn)了一次復(fù)用的特性，克服了PDH準(zhǔn)同步復(fù)用方式對(duì)全部高速信號(hào)進(jìn)行逐級(jí)分解然后再生復(fù)用的過(guò)程，由于**簡(jiǎn)化了DXC，減少了背靠背的接口復(fù)用設(shè)備，改善了網(wǎng)絡(luò)的業(yè)務(wù)傳送透明性； </p> <p> （3）由于采用了較先進(jìn)的分插復(fù)用器（ADM）、數(shù)字交叉連接（DXC）、網(wǎng)絡(luò)的自愈功能和重組功能就顯得非常強(qiáng)大，具有較強(qiáng)的生存率。因SDH幀結(jié)構(gòu)中安排了信號(hào)的5％開(kāi)銷比特，它的網(wǎng)管功能顯得特別強(qiáng)大，并能統(tǒng)一形成網(wǎng)絡(luò)管理系統(tǒng)，為網(wǎng)絡(luò)的自動(dòng)化、智能化、信道的利用率以及降低網(wǎng)絡(luò)的維管費(fèi)和生存能力起到了積極作用； </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇烽火CONT" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847797656250/1749392.jpg"></div></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/50094.html</p></div></div></div></div></div><div id="vjtqipe" class="page-right twoColRt"><div id="s78zlia" class="box01 margin10 clearfix"><h3><a 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