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tcPro"><section class="home-main container clearfix"><div id="3tqar47" class="twoCol"><div id="jarj399" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應</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/">接入設備</a>?嘉定區(qū)烽火STM-1 深圳市騰云科創(chuàng)供應</p><div id="ar3m4ja" class="leftbox clearfix"><h1>嘉定區(qū)烽火STM-1 深圳市騰云科創(chuàng)供應</h1><div id="f4kdudu" class="proBig"><div id="7ie243q" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="87wgrgh" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zbaxev2" 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>嘉定區(qū)烽火STM-1</p><p><span>***更新：</span>2020-06-07 10:27:04</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="uli849w" 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="84xel78" class="page-proshow02"><p class="title">詳細說明</p><div id="rvx2l9l" class="box"><p><p> <p> <p> 從技術上來看，接入層的相對帶寬需求較小，需要提供IP、TDM，可能還有ATM等綜合業(yè)務傳送。以SDH 系統(tǒng)為基礎并能夠提供IP 、ATM 傳送與處理的系統(tǒng)（包括TDM、IP與ATM接口，甚至包括IP 和ATM 交換模塊）將是解決接入層傳送的主要方法，這種方式可廉價地在一個業(yè)務提供點（POP）上提供高質(zhì)量專線、ATM ，嘉定區(qū)烽火STM-1、IP 等業(yè)務的接入、傳送和保護。 </p> <p> 隨著骨干傳輸容量不斷增大，城域傳輸網(wǎng)絡的接入能力也多樣化。但以IP為主的網(wǎng)絡業(yè)務仍然是不可預知的，這需要傳輸網(wǎng)絡具有更好的自適應能力，嘉定區(qū)烽火STM-1，而這種自適應能力不**是網(wǎng)絡接口或網(wǎng)絡容量的適應能力，而且要求網(wǎng)絡連接的自適應能力。總的來說，嘉定區(qū)烽火STM-1，低成本、靈活快速的完成運營商端局到用戶端的業(yè)務接入和業(yè)務收斂是對未來城域網(wǎng)接入系統(tǒng)的主要需求。 </p> </p> <p> <br /> </p> </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)烽火STM-1" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg"></div><p> 電力通信**網(wǎng)的構建思路 </p> <p> 電力通信網(wǎng)可以在樞紐節(jié)點、大型變電站、行政中心采用標準的STM 21、STM 24 或STM 216 傳輸設備疊加接入模塊的方式; 在中小型變電站、鄉(xiāng)鎮(zhèn)供電所等業(yè)務量較少的節(jié)點采用單獨簡單配置的STM-21網(wǎng)元設備組網(wǎng)或STM-21網(wǎng)元設備疊加接入模塊的方式; 接入模塊解決話音、V. 24/V. 35、2W/4W、E&M 等窄帶業(yè)務接入, 而10Mb/s、100Mb/s等寬帶數(shù)據(jù)接入則在SDH傳輸平臺上提供,這樣能夠充分保證帶寬和服務質(zhì)量(QoS)。環(huán)網(wǎng)光纜建設綜合考慮通信、計算機網(wǎng)絡及有線電視傳輸?shù)男枰?采用不等芯數(shù)配置, 做到既滿足要求, 又節(jié)省投資?？紤]到全網(wǎng)的性能價格比, 比較好采用系列化較完整的產(chǎn)品, 對不同節(jié)點選用不同配置的網(wǎng)元設備, 并能進行統(tǒng)一網(wǎng)管, 以實現(xiàn)有效的分層管理, 便于故障快速定位, 從而有效減輕維護工作量。隨著網(wǎng)絡規(guī)模的擴大, 應實現(xiàn)多廠家的設備管理, 要求網(wǎng)管支持標準接口, 即網(wǎng)管系統(tǒng)具備開放性。 </p> <p> 通過基于SDH 的MSTP, 可支持全業(yè)務, 局域網(wǎng)互聯(lián)帶寬可按VC212×N (1～ 48) 平滑設置, 可利用SDH 層的網(wǎng)絡自愈功能實現(xiàn)電信級的保護, 統(tǒng)一的網(wǎng)管方便網(wǎng)絡維護。它完善地解決所有業(yè)務信號的接入和傳輸, 且相對于其它的組網(wǎng)方式具有其明顯的優(yōu)勢。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)烽火STM-1" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> SDH的產(chǎn)生背景 </p> <p> SDH技術的誕生有其必然性，隨著通信的發(fā)展，要求傳送的信息不*是話音，還有文字、數(shù)據(jù)、圖像，和視頻等。加之數(shù)字通信和計算機技術的發(fā)展，在70至80年代，陸續(xù)出現(xiàn)了T1(DS1)／E1載波系統(tǒng)(1.544／2.048Mbps)、X.25幀中繼、ISDN(綜合業(yè)務數(shù)字網(wǎng)) 和FDDI(光纖分布式數(shù)據(jù)接口)等多種網(wǎng)絡技術。隨著信息社會的到來，人們希望現(xiàn)代信息傳輸網(wǎng)絡能快速、經(jīng)濟、有效地提供各種電路和業(yè)務，而上述網(wǎng)絡技術由于其業(yè)務的單調(diào)性，擴展的復雜性，帶寬的局限性，*在原有框架內(nèi)修改或完善已無濟于事。SDH就是在這種背景下發(fā)展起來的。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉定區(qū)烽火STM-1" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/178636.html</p></div></div></div></div></div><div id="b23kuvm" class="page-right twoColRt"><div id="mwt98jf" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ncjizgn" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img 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