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href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_txcp/">通信產(chǎn)品</a>?<a href="http://m.cdcfah.com/cp/third-txcp_jrsbtn/">接入設(shè)備</a>?吉林烽火STM-64 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p><div id="7bn9r72" class="leftbox clearfix"><h1>吉林烽火STM-64 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</h1><div id="wvcmevs" class="proBig"><div id="87n4xwn" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7ghrxev" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3czroqx" 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>吉林烽火STM-64</p><p><span>***更新：</span>2020-06-03 02:40:23</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="hbdpb72" 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="oszw7xz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3ovsebn" class="box"><p><p><p> 隨著骨干傳輸容量不斷增大，城域傳輸網(wǎng)絡(luò)的接入能力也多樣化。但以IP為主的網(wǎng)絡(luò)業(yè)務(wù)仍然是不可預(yù)知的，這需要傳輸網(wǎng)絡(luò)具有更好的自適應(yīng)能力，而這種自適應(yīng)能力不**是網(wǎng)絡(luò)接口或網(wǎng)絡(luò)容量的適應(yīng)能力，而且要求網(wǎng)絡(luò)連接的自適應(yīng)能力。總的來說，低成本、靈活快速的完成運(yùn)營(yíng)商端局到用戶端的業(yè)務(wù)接入和業(yè)務(wù)收斂是對(duì)未來城域網(wǎng)接入系統(tǒng)的主要需求。 </p> <p> 簡(jiǎn)單地講，這種采用SDH傳輸以太網(wǎng)等多種業(yè)務(wù)的方式就是將不同的網(wǎng)絡(luò)層次的業(yè)務(wù)通過ＶＣ級(jí)聯(lián)的方式映射到SDH電路的各個(gè)時(shí)隙中，由SDH網(wǎng)絡(luò)提供完全透明的傳輸通道，從物理層的設(shè)備角度上看是一個(gè)集成的整體。這種解決方案可以大幅度地降低投資規(guī)模，減少設(shè)備占地面積，降低功耗，進(jìn)而降低網(wǎng)絡(luò)運(yùn)營(yíng)商的運(yùn)營(yíng)成本。同時(shí)，提供多業(yè)務(wù)的能力還可以使網(wǎng)絡(luò)運(yùn)營(yíng)商能夠快速地部署網(wǎng)絡(luò)業(yè)務(wù)，提高業(yè)務(wù)收入，增強(qiáng)市場(chǎng)競(jìng)爭(zhēng)能力。 </p> <p> <br /> </p></p><p><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg" /></p><p><p> 隨著骨干傳輸容量不斷增大，城域傳輸網(wǎng)絡(luò)的接入能力也多樣化。但以IP為主的網(wǎng)絡(luò)業(yè)務(wù)仍然是不可預(yù)知的，這需要傳輸網(wǎng)絡(luò)具有更好的自適應(yīng)能力，而這種自適應(yīng)能力不**是網(wǎng)絡(luò)接口或網(wǎng)絡(luò)容量的適應(yīng)能力，而且要求網(wǎng)絡(luò)連接的自適應(yīng)能力?？偟膩碚f，低成本、靈活快速的完成運(yùn)營(yíng)商端局到用戶端的業(yè)務(wù)接入和業(yè)務(wù)收斂是對(duì)未來城域網(wǎng)接入系統(tǒng)的主要需求。 </p> <p> 簡(jiǎn)單地講，這種采用SDH傳輸以太網(wǎng)等多種業(yè)務(wù)的方式就是將不同的網(wǎng)絡(luò)層次的業(yè)務(wù)通過ＶＣ級(jí)聯(lián)的方式映射到SDH電路的各個(gè)時(shí)隙中，由SDH網(wǎng)絡(luò)提供完全透明的傳輸通道，從物理層的設(shè)備角度上看是一個(gè)集成的整體。這種解決方案可以大幅度地降低投資規(guī)模，減少設(shè)備占地面積，降低功耗，進(jìn)而降低網(wǎng)絡(luò)運(yùn)營(yíng)商的運(yùn)營(yíng)成本。同時(shí)，提供多業(yè)務(wù)的能力還可以使網(wǎng)絡(luò)運(yùn)營(yíng)商能夠快速地部署網(wǎng)絡(luò)業(yè)務(wù)，提高業(yè)務(wù)收入，增強(qiáng)市場(chǎng)競(jìng)爭(zhēng)能力。 </p> <p> <br /> </p></p><p><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg" /></p><p><p> 電源系統(tǒng)SDH設(shè)備采用一48伏直流電源，工作電壓應(yīng)滿足：輸入電壓范圍是-40V至-57V；電話衡量雜音電壓<2mV；峰峰值雜音電壓(0．300Hz)_<400mV。 </p> <p> 根據(jù)公式：電流=功率／電壓。各設(shè)備正常工作時(shí)的比較大電流等于滿配置功耗除以工作電壓。比較大電流再加上適當(dāng)富余量取整可得所需熔絲大小。 </p> <p> 時(shí)鐘同步系統(tǒng) </p> <p> SDH網(wǎng)元時(shí)鐘源的種類 </p> <p> (1)外部時(shí)鐘源——由SETPI功能塊提供輸入接口； </p> <p> (2)線路時(shí)鐘源一由SPI功能塊從STM．N線路信號(hào)中提??； </p> <p> (3)支路時(shí)鐘源——由PPI功能塊從PDH支路信號(hào)中提取，不過該時(shí)鐘一般不用，因?yàn)镾DH／PDH網(wǎng)邊界處的指針調(diào)整會(huì)影響時(shí)鐘質(zhì)量； </p> <p> (4)設(shè)備內(nèi)置時(shí)鐘源由SETS功能塊提供。 </p> <p> <br /> </p></p><p><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847603603516/458709.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(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。公司擁有專業(yè)的技術(shù)團(tuán)隊(duì)，由廠家(中興通訊，華為技術(shù)，烽火通信)服務(wù)10年以上從業(yè)經(jīng)驗(yàn)的技術(shù)專家引領(lǐng)，并有多名專業(yè)技術(shù)人員為您提供專業(yè)的商務(wù)技術(shù)和專業(yè)解決方案。公司主營(yíng)中興通訊及華為技術(shù)各系列產(chǎn)品板件及整套設(shè)備的銷售與安裝，設(shè)備維護(hù)及板件返修，以及各設(shè)備可配置的單板，用戶電纜，中繼電纜等。公司業(yè)務(wù)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(wù)合作伙伴關(guān)系。積極面向市場(chǎng)為廣大行業(yè)用戶提供設(shè)計(jì)、安裝、調(diào)試、培訓(xùn)、維護(hù)的“一條龍"服務(wù)。本公司以優(yōu)質(zhì)的服務(wù)、良好的信譽(yù)、雄厚的技術(shù)力量為廣大客戶提供優(yōu)質(zhì)服務(wù)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林烽火STM-64" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/125657.html</p></div></div></div></div></div><div id="oikr77k" class="page-right twoColRt"><div id="wlnphoa" class="box01 margin10 clearfix"><h3><a 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