重慶SDH設(shè)備烽火ASON 780A 深圳市騰云科創(chuàng)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="SDH網(wǎng)絡(luò)的常見(jiàn)網(wǎng)元和功能SDH傳輸網(wǎng)是由不同類(lèi)型的網(wǎng)元通過(guò)光纜線路的連接組成的，通過(guò)不同的網(wǎng)元完成SDH網(wǎng)的傳送功能：上/下業(yè)務(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等。下面我們講述SDH網(wǎng)中常見(jiàn)網(wǎng)元的特點(diǎn)和基本功能。TM——終端復(fù)用器終端復(fù)用器用"><meta name="keywords" content="重慶SDH設(shè)備烽火ASON 780A,烽火"><link rel="canonical" href="http://m.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://m.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label id="qgqbi"></label></track><tbody id="qgqbi"></tbody><legend id="qgqbi"></legend><th id="qgqbi"><button id="qgqbi"></button></th><listing id="qgqbi"><rt id="qgqbi"></rt></listing><sup id="qgqbi"><dd id="qgqbi"><tbody id="qgqbi"></tbody></dd></sup><menu id="qgqbi"><xmp id="qgqbi"></xmp></menu><fieldset id="qgqbi"><acronym id="qgqbi"></acronym></fieldset><wbr id="qgqbi"><mark id="qgqbi"><strong id="qgqbi"></strong></mark></wbr><tbody id="qgqbi"><small id="qgqbi"></small></tbody><label id="qgqbi"><tfoot id="qgqbi"></tfoot></label><div id="qgqbi"><th id="qgqbi"><object id="qgqbi"></object></th></div><listing id="qgqbi"></listing><source id="qgqbi"><ins id="qgqbi"></ins></source><noframes id="qgqbi"></noframes><noscript id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"></tt></strike></noscript><strike id="qgqbi"><rp id="qgqbi"></rp></strike><dl id="qgqbi"></dl><th id="qgqbi"></th><acronym id="qgqbi"></acronym><center id="qgqbi"><input id="qgqbi"><div id="qgqbi"><th id="qgqbi"></th></div></input></center><label id="qgqbi"></label><tr id="qgqbi"><label id="qgqbi"><center id="qgqbi"></center></label></tr><menuitem id="qgqbi"><em id="qgqbi"><legend id="qgqbi"></legend></em></menuitem><pre id="qgqbi"></pre><fieldset id="qgqbi"><address id="qgqbi"><abbr id="qgqbi"><dl id="qgqbi"></dl></abbr></address></fieldset><sup id="qgqbi"><form id="qgqbi"></form></sup><form id="qgqbi"></form> <form id="qgqbi"></form><center id="qgqbi"><rp id="qgqbi"></rp></center><code id="qgqbi"></code><option id="qgqbi"><i id="qgqbi"><tr id="qgqbi"></tr></i></option><address id="qgqbi"></address><pre id="qgqbi"></pre><wbr id="qgqbi"></wbr><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"></bdo></delect></dl><table id="qgqbi"><p id="qgqbi"></p></table><label id="qgqbi"><xmp id="qgqbi"><noscript id="qgqbi"><dl id="qgqbi"></dl></noscript></xmp></label><cite id="qgqbi"></cite><acronym id="qgqbi"><object id="qgqbi"><big id="qgqbi"></big></object></acronym><rp id="qgqbi"></rp><tt id="qgqbi"></tt><output id="qgqbi"></output><table id="qgqbi"><p id="qgqbi"><ruby id="qgqbi"></ruby></p></table><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><u id="qgqbi"></u><bdo id="qgqbi"><tr id="qgqbi"><dfn id="qgqbi"></dfn></tr></bdo><strike id="qgqbi"><font id="qgqbi"></font></strike><s id="qgqbi"></s><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"><pre id="qgqbi"></pre></code></samp></acronym><cite id="qgqbi"></cite><form id="qgqbi"><dl id="qgqbi"><pre id="qgqbi"><label id="qgqbi"></label></pre></dl></form><center id="qgqbi"><rp id="qgqbi"></rp></center><font id="qgqbi"></font><menu id="qgqbi"></menu><small id="qgqbi"><strong id="qgqbi"><sup id="qgqbi"><form id="qgqbi"></form></sup></strong></small><label id="qgqbi"><tfoot id="qgqbi"><em id="qgqbi"></em></tfoot></label><optgroup id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></optgroup><label id="qgqbi"></label><meter id="qgqbi"><noframes id="qgqbi"><i id="qgqbi"><ins id="qgqbi"></ins></i></noframes></meter><kbd id="qgqbi"></kbd><b id="qgqbi"></b><dl id="qgqbi"><delect id="qgqbi"><th id="qgqbi"><span id="qgqbi"></span></th></delect></dl><font id="qgqbi"></font><small id="qgqbi"></small><mark id="qgqbi"></mark><del id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></del><dd id="qgqbi"><ruby id="qgqbi"><menu id="qgqbi"></menu></ruby></dd><th id="qgqbi"><em id="qgqbi"></em></th><abbr id="qgqbi"></abbr><span id="qgqbi"><kbd id="qgqbi"><dfn id="qgqbi"><sub id="qgqbi"></sub></dfn></kbd></span><ins id="qgqbi"></ins><s id="qgqbi"><progress id="qgqbi"></progress></s><th id="qgqbi"></th><bdo id="qgqbi"></bdo><blockquote id="qgqbi"></blockquote><b id="qgqbi"></b><nav id="qgqbi"><div id="qgqbi"></div></nav> <meter id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></meter><tfoot id="qgqbi"></tfoot><big id="qgqbi"><pre id="qgqbi"><s id="qgqbi"></s></pre></big><small id="qgqbi"></small><table id="qgqbi"><td id="qgqbi"><sup id="qgqbi"></sup></td></table><form id="qgqbi"><tr id="qgqbi"></tr></form><tr id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></tr><ul id="qgqbi"></ul><center id="qgqbi"><optgroup id="qgqbi"><div id="qgqbi"></div></optgroup></center><rp id="qgqbi"><input id="qgqbi"><blockquote id="qgqbi"><th id="qgqbi"></th></blockquote></input></rp><tbody id="qgqbi"></tbody><form id="qgqbi"><u id="qgqbi"><fieldset id="qgqbi"></fieldset></u></form><rp id="qgqbi"></rp><b id="qgqbi"><small id="qgqbi"></small></b><dd id="qgqbi"></dd><kbd id="qgqbi"></kbd><code id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"></ul></pre></code><strong id="qgqbi"></strong><cite id="qgqbi"><sub id="qgqbi"></sub></cite><object id="qgqbi"></object><dfn id="qgqbi"></dfn><pre id="qgqbi"></pre><xmp id="qgqbi"></xmp><pre id="qgqbi"></pre><sup id="qgqbi"><form id="qgqbi"><cite id="qgqbi"></cite></form></sup><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><input id="qgqbi"></input><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"></code></samp></acronym><nobr id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"><strong id="qgqbi"></strong></ul></pre></nobr><menuitem id="qgqbi"><em id="qgqbi"><wbr id="qgqbi"><mark id="qgqbi"></mark></wbr></em></menuitem><dl id="qgqbi"></dl><rp id="qgqbi"><input id="qgqbi"><div id="qgqbi"></div></input></rp><div id="qgqbi"><button id="qgqbi"><pre id="qgqbi"><meter id="qgqbi"></meter></pre></button></div><address id="qgqbi"></address><thead id="qgqbi"><abbr id="qgqbi"><sup id="qgqbi"></sup></abbr></thead><em id="qgqbi"></em><ul id="qgqbi"><listing id="qgqbi"><wbr id="qgqbi"></wbr></listing></ul><listing id="qgqbi"></listing><wbr id="qgqbi"></wbr><thead id="qgqbi"><abbr id="qgqbi"><strike id="qgqbi"></strike></abbr></thead><menuitem id="qgqbi"></menuitem><pre id="qgqbi"></pre><pre id="qgqbi"></pre><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"><span id="qgqbi"></span></bdo></delect></dl><ruby id="qgqbi"></ruby><pre id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"><i id="qgqbi"></i></tt></strike></pre><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset><cite id="qgqbi"><sub id="qgqbi"></sub></cite><optgroup id="qgqbi"></optgroup><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset></div><div id="6hy3k" class="pl_css_ganrao" style="display: none;"><u id="6hy3k"></u><rp id="6hy3k"><del id="6hy3k"><center id="6hy3k"><object id="6hy3k"></object></center></del></rp><output id="6hy3k"><samp id="6hy3k"><wbr id="6hy3k"></wbr></samp></output><tr id="6hy3k"></tr><legend id="6hy3k"></legend><listing id="6hy3k"></listing><td id="6hy3k"><input id="6hy3k"></input></td><strong id="6hy3k"><address id="6hy3k"><kbd id="6hy3k"><dl id="6hy3k"></dl></kbd></address></strong><legend id="6hy3k"></legend><dl id="6hy3k"><small id="6hy3k"></small></dl><xmp id="6hy3k"></xmp><button id="6hy3k"><rt id="6hy3k"><meter id="6hy3k"></meter></rt></button><abbr id="6hy3k"><strong id="6hy3k"></strong></abbr><th id="6hy3k"><style id="6hy3k"></style></th><tt id="6hy3k"></tt><tfoot id="6hy3k"></tfoot><table id="6hy3k"><p id="6hy3k"><ruby id="6hy3k"></ruby></p></table><pre id="6hy3k"></pre><address id="6hy3k"></address><strong id="6hy3k"></strong><dl id="6hy3k"></dl><th id="6hy3k"><span id="6hy3k"><dfn id="6hy3k"><cite id="6hy3k"></cite></dfn></span></th><u id="6hy3k"></u><menu id="6hy3k"><legend id="6hy3k"><pre id="6hy3k"></pre></legend></menu><code id="6hy3k"><dfn id="6hy3k"><u id="6hy3k"><thead id="6hy3k"></thead></u></dfn></code><track id="6hy3k"></track><kbd id="6hy3k"></kbd><menuitem id="6hy3k"><listing id="6hy3k"><address id="6hy3k"></address></listing></menuitem><p id="6hy3k"></p><tt id="6hy3k"></tt><legend id="6hy3k"><dfn id="6hy3k"><table id="6hy3k"><p id="6hy3k"></p></table></dfn></legend><input id="6hy3k"></input><strike id="6hy3k"><rp id="6hy3k"><nav id="6hy3k"><blockquote id="6hy3k"></blockquote></nav></rp></strike><abbr id="6hy3k"><strong id="6hy3k"></strong></abbr><acronym id="6hy3k"></acronym><bdo id="6hy3k"><ins id="6hy3k"></ins></bdo><legend id="6hy3k"></legend><ins id="6hy3k"><label id="6hy3k"><thead id="6hy3k"></thead></label></ins><form id="6hy3k"></form><form id="6hy3k"></form><acronym id="6hy3k"><samp id="6hy3k"><nobr id="6hy3k"><pre id="6hy3k"></pre></nobr></samp></acronym><option id="6hy3k"><s id="6hy3k"><menuitem id="6hy3k"><em id="6hy3k"></em></menuitem></s></option><mark id="6hy3k"></mark><cite id="6hy3k"><form id="6hy3k"><optgroup id="6hy3k"><fieldset id="6hy3k"></fieldset></optgroup></form></cite><acronym id="6hy3k"><strong id="6hy3k"><strike id="6hy3k"></strike></strong></acronym><fieldset id="6hy3k"><address id="6hy3k"><strong id="6hy3k"></strong></address></fieldset><video id="6hy3k"></video><bdo id="6hy3k"><span id="6hy3k"><del id="6hy3k"><cite id="6hy3k"></cite></del></span></bdo><legend id="6hy3k"></legend><dfn id="6hy3k"></dfn><span id="6hy3k"><form id="6hy3k"><cite id="6hy3k"></cite></form></span><ins id="6hy3k"><optgroup id="6hy3k"></optgroup></ins><output id="6hy3k"><table id="6hy3k"><font id="6hy3k"></font></table></output><del id="6hy3k"><dfn id="6hy3k"><form id="6hy3k"></form></dfn></del><th id="6hy3k"><button id="6hy3k"><pre id="6hy3k"><strike id="6hy3k"></strike></pre></button></th><cite id="6hy3k"><form id="6hy3k"><optgroup id="6hy3k"><fieldset id="6hy3k"></fieldset></optgroup></form></cite><b id="6hy3k"><small id="6hy3k"></small></b><strong id="6hy3k"></strong><code id="6hy3k"><pre id="6hy3k"><table id="6hy3k"></table></pre></code><del id="6hy3k"></del><tfoot id="6hy3k"><samp id="6hy3k"><small id="6hy3k"><pre id="6hy3k"></pre></small></samp></tfoot><sup id="6hy3k"></sup><legend id="6hy3k"></legend><em id="6hy3k"><style id="6hy3k"><dl id="6hy3k"></dl></style></em><ul id="6hy3k"><listing id="6hy3k"></listing></ul><track id="6hy3k"><s id="6hy3k"><progress id="6hy3k"><em id="6hy3k"></em></progress></s></track><form id="6hy3k"></form><wbr id="6hy3k"><mark id="6hy3k"><strong id="6hy3k"></strong></mark></wbr><sup id="6hy3k"></sup><sup id="6hy3k"><form id="6hy3k"><xmp id="6hy3k"></xmp></form></sup><delect id="6hy3k"><listing id="6hy3k"><rt id="6hy3k"><kbd id="6hy3k"></kbd></rt></listing></delect><var id="6hy3k"></var><li id="6hy3k"></li><acronym id="6hy3k"><strong id="6hy3k"><dl id="6hy3k"><dd id="6hy3k"></dd></dl></strong></acronym><blockquote id="6hy3k"><tbody id="6hy3k"><acronym id="6hy3k"><b id="6hy3k"></b></acronym></tbody></blockquote><li id="6hy3k"><ol id="6hy3k"><xmp id="6hy3k"><small id="6hy3k"></small></xmp></ol></li><font id="6hy3k"></font><noframes id="6hy3k"></noframes><meter id="6hy3k"></meter><strike id="6hy3k"><option id="6hy3k"></option></strike><ins id="6hy3k"><var id="6hy3k"><thead id="6hy3k"><output id="6hy3k"></output></thead></var></ins><nobr id="6hy3k"><pre id="6hy3k"></pre></nobr><ins id="6hy3k"><optgroup id="6hy3k"><thead id="6hy3k"></thead></optgroup></ins><sup id="6hy3k"><form id="6hy3k"><legend id="6hy3k"></legend></form></sup><table id="6hy3k"><td id="6hy3k"></td></table><dfn id="6hy3k"><u id="6hy3k"><listing id="6hy3k"><wbr id="6hy3k"></wbr></listing></u></dfn><wbr id="6hy3k"><mark id="6hy3k"></mark></wbr><label id="6hy3k"><progress id="6hy3k"></progress></label><video id="6hy3k"></video><font id="6hy3k"></font><dd id="6hy3k"><ruby id="6hy3k"><ol id="6hy3k"></ol></ruby></dd><bdo id="6hy3k"><pre id="6hy3k"></pre></bdo><optgroup id="6hy3k"><div id="6hy3k"><video id="6hy3k"></video></div></optgroup><samp id="6hy3k"></samp><menuitem id="6hy3k"></menuitem><sup id="6hy3k"><font id="6hy3k"><tbody id="6hy3k"><tfoot id="6hy3k"></tfoot></tbody></font></sup><del id="6hy3k"><dfn id="6hy3k"></dfn></del><sup id="6hy3k"></sup></div><header class="header container"><span id="jr32scb" class="logo"><a href="http://m.cdcfah.com/"><img src="/static/new_net_01/images/logo.png" alt="找產(chǎn)品網(wǎng)"></a></span><span id="x2etg8c" class="tigs"> 發(fā)信息做推廣就找產(chǎn)品網(wǎng)<br />企業(yè)電商信息綜合服務(wù)平臺(tái) </span><div id="fvawt0i" class="searchbox"><div id="fua3pel" class="searchLt"><div id="8zurti8" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="jhyqi4g" class="clearfix searchWrap"><div id="q2uhe98" class="searchInput"><input type="text" name="keywords" placeholder="請(qǐng)輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="u23kr4f" class="container"><ul><li id = "index_index"><a href="http://m.cdcfah.com/"><span>首頁(yè)</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://m.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://m.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://m.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://m.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="3r37het" class="twoCol"><div id="n7olixo" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁(yè)?<a 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>?重慶SDH設(shè)備烽火ASON 780A 深圳市騰云科創(chuàng)供應(yīng)</p><div id="3ycoqkq" class="leftbox clearfix"><h1>重慶SDH設(shè)備烽火ASON 780A 深圳市騰云科創(chuàng)供應(yīng)</h1><div id="zoqnpzl" class="proBig"><div id="3x2lhwn" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="febifrt" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fjlikro" 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>重慶SDH設(shè)備烽火ASON 780A,烽火</p><p><span>***更新：</span>2020-10-10 12:04:36</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="mq3cebd" 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="d8dvczq" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="3cw3lnp" class="box"><p><p> SDH網(wǎng)絡(luò)的常見(jiàn)網(wǎng)元和功能 </p> <p> SDH傳輸網(wǎng)是由不同類(lèi)型的網(wǎng)元通過(guò)光纜線路的連接組成的，通過(guò)不同的網(wǎng)元完成SDH網(wǎng)的傳送功能：上/下業(yè)務(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等。下面我們講述SDH網(wǎng)中常見(jiàn)網(wǎng)元的特點(diǎn)和基本功能。 </p> <p> TM——終端復(fù)用器 </p> <p> 終端復(fù)用器用在網(wǎng)絡(luò)的終端站點(diǎn)上，例如一條鏈的兩個(gè)端點(diǎn)上，它是一個(gè)雙端口器件。它的作用是將支路端口的低速信號(hào)復(fù)用到線路端口的高速信號(hào)STM-N中，或從STM-N的信號(hào)中分出低速支路信號(hào)。請(qǐng)注意它的線路端口輸入/輸出一路STM-N信號(hào)，而支路端口卻可以輸出/輸入多路低速支路信號(hào)。在將低速支路信號(hào)復(fù)用進(jìn)STM-N幀（將低速信號(hào)復(fù)用到線路）上時(shí)，有一個(gè)交叉的功能，例如：可將支路的一個(gè)STM-1信號(hào)復(fù)用進(jìn)線路上的STM-16信號(hào)中的任意位置上，也就是指復(fù)用在1~16個(gè)STM-1的任一個(gè)位置上，重慶SDH設(shè)備烽火ASON 780A。將支路的2Mbit/s信號(hào)可復(fù)用到一個(gè)STM-1中63個(gè)VC12的任一個(gè)位置上去。對(duì)于華為設(shè)備，重慶SDH設(shè)備烽火ASON 780A，重慶SDH設(shè)備烽火ASON 780A，TM的線路端口（光口）一般以西向端口默認(rèn)表示的。例如一條鏈的兩個(gè)端點(diǎn)上，它是一個(gè)雙端口器件。重慶SDH設(shè)備烽火ASON 780A</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶SDH設(shè)備烽火ASON 780A,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103808594/6520524.jpg"></div><p> STM-N的幀結(jié)構(gòu)由3部分組成： </p> <p> 1、信息凈負(fù)荷（payload）。 </p> <p> 信息凈負(fù)荷位于STM-N幀中第1到第9行，第9×N+1到第270×N列，共9×261×N個(gè)字節(jié)。信息凈負(fù)荷是在STM-N幀結(jié)構(gòu)中存放將由STM-N傳送的各種用戶信息碼塊的地方。 </p> <p> 為了實(shí)時(shí)監(jiān)測(cè)貨物（打包的低速信號(hào)）在傳輸過(guò)程中是否有損壞，在將低速信號(hào)打包的過(guò)程中加入了通道開(kāi)銷(xiāo)（POH）字節(jié)。POH作為凈負(fù)荷的一部分與信息碼塊一起裝載在STM-N這輛貨車(chē)上在SDH網(wǎng)中傳送，它負(fù)責(zé)對(duì)打包的貨物（低速信號(hào)）進(jìn)行通道性能監(jiān)視、管理和控制。 </p> <p> 2、段開(kāi)銷(xiāo)（SOH） </p> <p> 段，相當(dāng)于一條大的傳輸通道，段開(kāi)銷(xiāo)是為了保證信息凈負(fù)荷正常傳送所必須附加的網(wǎng)絡(luò)運(yùn)行、管理和維護(hù)（OAM）字節(jié)。也就是說(shuō)SOH完成對(duì)貨物整體的監(jiān)控，POH是完成對(duì)某一件特定的貨物進(jìn)行監(jiān)控，當(dāng)然，SOH和POH還有一些其他管理功能。 </p> <p> 段開(kāi)銷(xiāo)又分為再生段開(kāi)銷(xiāo)（RSOH）和復(fù)用段開(kāi)銷(xiāo)（MSOH），可分別對(duì)相應(yīng)的段層進(jìn)行監(jiān)控，二者的區(qū)別在于監(jiān)管的范圍不同。 </p> <p> 3、管理單元指針（AU-PTR） </p> <p> 管理單元指針位于STM-N幀中第4行的***到第9×N列，共9×N個(gè)字節(jié)。AU-PTR是用來(lái)指示信息凈負(fù)荷的***個(gè)字節(jié)在STM-N幀內(nèi)的準(zhǔn)確位置的指示符，以便接收端能根據(jù)這個(gè)位置指示符的值（指針值）準(zhǔn)確分離信息凈負(fù)荷。重慶SDH設(shè)備烽火ASON 780ASDH是數(shù)字傳輸體制上繼PDH之后的一次劃時(shí)代的飛躍。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶SDH設(shè)備烽火ASON 780A,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105000000/3722756.jpg"></div><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(lèi) </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(guò)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> SDH的發(fā)展趨勢(shì) </p> <p> 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。迄今，SDH得到了空前的應(yīng)用與發(fā)展。在標(biāo)準(zhǔn)化方面，已建立和即將建立的一系列建議已基本上覆蓋了SDH的方方面面。在干線網(wǎng)和長(zhǎng)途網(wǎng)、中繼網(wǎng)、接入網(wǎng)中它開(kāi)始廣泛應(yīng)用。且在光纖通信、微波通信、衛(wèi)星通信中也積極地開(kāi)展研究與應(yīng)用。 </p> <p> <p> 近些年，點(diǎn)播電視、多媒體業(yè)務(wù)和其他寬帶業(yè)務(wù)如雨后春筍般紛紛出現(xiàn)，為SDH應(yīng)用在接入網(wǎng)中提供了廣闊的空間。SDH技術(shù)應(yīng)用于接入網(wǎng)的好處是：1）對(duì)于要求高可靠、高質(zhì)量業(yè)務(wù)的大型企事業(yè)用戶，SDH可以提供較為理想的網(wǎng)絡(luò)性能和業(yè)務(wù)可靠性。2）可以將網(wǎng)管范圍擴(kuò)展至用戶端，簡(jiǎn)化維護(hù)工作。3）利用SDH固有靈活性，可使網(wǎng)絡(luò)運(yùn)營(yíng)者更快、更有效地提供用戶所需的長(zhǎng)期和短期業(yè)務(wù)需求。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> 分/插復(fù)用器用于SDH傳輸網(wǎng)絡(luò)的轉(zhuǎn)接站點(diǎn)處。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="重慶SDH設(shè)備烽火ASON 780A,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847603603516/458709.jpg"></div><p> 電力網(wǎng)的發(fā)展對(duì)電力系統(tǒng)專(zhuān)用通信網(wǎng)提出了更高的要求, 電力通信要求確保電能的生產(chǎn)、輸送、分配、消費(fèi)在瞬間是同時(shí)完成的。為了保證電網(wǎng)安全、經(jīng)濟(jì)地運(yùn)行, 必須配置調(diào)度、保護(hù)、遠(yuǎn)程控制等系統(tǒng)。這些系統(tǒng)的所有信息傳輸都必須由通信系統(tǒng)提供通道。由此可見(jiàn), 通信在電力系統(tǒng)中的作用是非常關(guān)鍵的。隨著經(jīng)濟(jì)的發(fā)展, 電力系統(tǒng)容量急劇增加, 隨之而來(lái)的是輸電超高壓化, 接入業(yè)務(wù)多樣化。 </p> <p> 電力系統(tǒng)一旦發(fā)生故障, 如果通信不暢, 不能及時(shí)調(diào)度指揮,就會(huì)擴(kuò)大***范圍, 造成大面積停電甚至系統(tǒng)瓦解,不僅經(jīng)濟(jì)損失十分慘重, 而且會(huì)給社會(huì)造成嚴(yán)重影響。因此電力系統(tǒng)的通信要有非常高的可靠性。由于SDH技術(shù)具有特有的優(yōu)勢(shì), 采用SDH技術(shù)組網(wǎng)不僅適合現(xiàn)代通信發(fā)展的需要,而且特別適合電力系統(tǒng)通信的需要。SDH網(wǎng)是由不同類(lèi)型的SDH網(wǎng)元設(shè)備, 如終端復(fù)用設(shè)備(TM )、再生器(REG)、分插復(fù)用設(shè)備(ADM )、數(shù)字交叉連接(DXC) 設(shè)備等, 通過(guò)光纜互連而成的, 由這些網(wǎng)元設(shè)備完成SDH 網(wǎng)的上下業(yè)務(wù)、交叉連接業(yè)務(wù)、網(wǎng)絡(luò)故障自愈等傳送功能。SDH網(wǎng)的網(wǎng)絡(luò)節(jié)點(diǎn)(網(wǎng)元) 和傳輸線路的幾何排列就構(gòu)成了網(wǎng)絡(luò)的拓?fù)浣Y(jié)構(gòu)。網(wǎng)絡(luò)的基本拓?fù)浣Y(jié)構(gòu)大致有這樣幾種方式: 鏈形、星形、樹(shù)形、環(huán)形和網(wǎng)格形等。由于幀周期的恒定使STM-N信號(hào)的速率有其規(guī)律性。廣東光傳輸設(shè)備烽火RET</p><p style="text-indent:25px">各種PDH支路信號(hào)復(fù)用進(jìn)STM-N幀的過(guò)程都要經(jīng)歷映射、定位、復(fù)用三個(gè)步驟。重慶SDH設(shè)備烽火ASON 780A</p>隨著信息社會(huì)的到來(lái)，人們希望現(xiàn)代信息傳輸網(wǎng)絡(luò)能快速、經(jīng)濟(jì)、有效地提供各種電路和業(yè)務(wù)，而上述網(wǎng)絡(luò)技術(shù)由于其業(yè)務(wù)的單調(diào)性，擴(kuò)展的復(fù)雜性，帶寬的局限性，僅在原有框架內(nèi)修改或完善已無(wú)濟(jì)于事，此時(shí)SDH的產(chǎn)生并憑借其眾多特性，使其在廣域網(wǎng)領(lǐng)域和專(zhuān)用網(wǎng)領(lǐng)域得到了巨大的發(fā)展。 <p> 深圳市騰云科創(chuàng)信息咨詢有限公司是一家專(zhuān)業(yè)從事中興傳輸設(shè)備、華為SDH光傳輸設(shè)備、PCM接入設(shè)備、以及設(shè)備所配置的業(yè)務(wù)板卡等通信產(chǎn)品銷(xiāo)售及通信智能化項(xiàng)目施工的公司。我們秉承“客戶至上，誠(chéng)信務(wù)實(shí)”的服務(wù)理念，用心、創(chuàng)新、高效，以優(yōu)質(zhì)的專(zhuān)業(yè)技術(shù)為客戶提供最。。佳的需求服務(wù)。我司供應(yīng)光傳輸設(shè)備，SDH光端機(jī)，中興ZXMP系列產(chǎn)品：ZXMP </p> <p> S200｜ZXMP S320｜ZXMP S330｜ZXMP S325｜ZXMP S385｜ZXMP S390整機(jī)及各型號(hào)單板。供應(yīng)華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機(jī)及各型號(hào)單板。供應(yīng)華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機(jī)及各型號(hào)單板。供應(yīng)烽火IBAS系列產(chǎn)品： </p> <p> IBAS780A｜IBAS780B供應(yīng)PCM綜合接入設(shè)備：FA16接入設(shè)備｜BX10接入設(shè)備，您的滿意，是我們一直的追求！重慶SDH設(shè)備烽火ASON 780A</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司致力于通信產(chǎn)品，是一家貿(mào)易型公司。騰云科創(chuàng)致力于為客戶提供良好的SDH光傳輸設(shè)備，光端機(jī)，PCM接入設(shè)備，PTN OTN光傳輸設(shè)備，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事通信產(chǎn)品多年，有著創(chuàng)新的設(shè)計(jì)、強(qiáng)大的技術(shù)，還有一批獨(dú)立的專(zhuān)業(yè)化的隊(duì)伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。騰云科創(chuàng)立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/1497703.html</p></div></div></div></div></div><div id="7r8zbif" class="page-right twoColRt"><div id="xmejamj" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ysz7qsp" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="cheofrt" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)</p></a></div><div id="3vprt3z" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/2083415.html"><div><img src="https://tyunfile.71360.com/UploadFile/WZAJZNKJ/637332852248037109/2461316.png" alt="200l桶自動(dòng)灌裝機(jī)生產(chǎn)廠歡迎來(lái)電溫州奧基智能科技供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>200l桶自動(dòng)灌裝機(jī)生產(chǎn)廠歡迎來(lái)電溫州奧基智能科技供應(yīng)</p></a></div><div id="3kmj7ou" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/1387.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/8/3/11/637004297269091023_cyjqc_1306937.jpg" alt="烏魯木齊市會(huì)務(wù)租車(chē)網(wǎng) 車(chē)永捷供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>烏魯木齊市會(huì)務(wù)租車(chē)網(wǎng) 車(chē)永捷供應(yīng)</p></a></div><div id="qaxzbsp" class="clear"></div></div><div id="cm7ivs8" class="box01 box03"><h3><a href="http://m.cdcfah.com/xw/">最新產(chǎn)品資訊</a></h3><ul></ul></div></div></section><div id="rqspwtq" class="page-proshow02"><p class="title">本企業(yè)其它產(chǎn)品 <span style="float:right;"><a >更多>></a></span></p><div id="wlnu3kr" class="box box-add clearfix"><ul class="box-list"><li><a href="http://m.cdcfah.com/cp/1009.html"><div id="zjqspri" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242898969345703/9897699.jpg" alt="深圳華為e1光端機(jī) 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>深圳華為e1光端機(jī) 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1010.html"><div id="etlipry" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242902004560546/1392138.jpg" alt="華為Metro2050 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>華為Metro2050 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1011.html"><div id="8tldamy" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242902007998046/6082480.jpg" alt="上海華為Metro100 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>上海華為Metro100 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1012.html"><div id="dikxjax" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg" alt="SDH光端機(jī)烽火STM-4 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>SDH光端機(jī)烽火STM-4 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1013.html"><div id="y77xpwi" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845102001954/2472236.jpg" alt="海南烽火8路帶交換功能快速以太網(wǎng)處理板深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>海南烽火8路帶交換功能快速以太網(wǎng)處理板深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1014.html"><div id="cwt8jld" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637242899280878906/1996302.jpg" alt="廣州華為EGS2以太網(wǎng)板深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>廣州華為EGS2以太網(wǎng)板深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1015.html"><div id="b8rolc7" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845102001954/2472236.jpg" alt="遼寧烽火千兆以太網(wǎng)出線卡深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>遼寧烽火千兆以太網(wǎng)出線卡深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/1016.html"><div id="bvifcjg" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244847651777344/7289118.jpg" alt="虹口區(qū)烽火CKU 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>虹口區(qū)烽火CKU 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li></ul></div></div><div id="8yqnpwy" class="page-proshow02"><p class="title">同類(lèi)產(chǎn)品推薦 <span><a href="http://m.cdcfah.com/cp/first-_txcp/">更多>></a></span></p><div id="ynk3qsz" class="box box-add clearfix"><ul class="box-list"><li><a href="http://m.cdcfah.com/cp/750164.html"><div id="ixzgizr" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637236134615488282/8370005.jpg" alt="陜西SDH光傳輸設(shè)備中興STM-64 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>陜西SDH光傳輸設(shè)備中興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></a></li><li><a href="http://m.cdcfah.com/cp/3025567.html"><div id="3iace82" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845102001954/2472236.jpg" alt="重慶光傳輸設(shè)備價(jià)格烽火 E1板卡深圳市騰云科創(chuàng)供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>重慶光傳輸設(shè)備價(jià)格烽火 E1板卡深圳市騰云科創(chuàng)供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/35551.html"><div id="3hebnur" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637236134618779297/1165395.jpg" alt="西藏傳輸設(shè)備中興ZXMPS385 深圳市騰云科創(chuàng)供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>西藏傳輸設(shè)備中興ZXMPS385 深圳市騰云科創(chuàng)供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/422187.html"><div id="c7ryfm2" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637236134615585938/7381469.jpg" alt="北京光傳輸設(shè)備中興ZXONE5800 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>北京光傳輸設(shè)備中興ZXONE5800 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/246157.html"><div id="xlnk2b3" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637236134618779297/1165395.jpg" alt="中興OL14x4光線路板深圳市騰云科創(chuàng)供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>中興OL14x4光線路板深圳市騰云科創(chuàng)供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1425979.html"><div id="enpmeli" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105136719/8556415.jpg" alt="云南代理光傳輸設(shè)備烽火STM-1 深圳市騰云科創(chuàng)供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>云南代理光傳輸設(shè)備烽火STM-1 深圳市騰云科創(chuàng)供應(yīng)</p></a></li><li><a href="http://m.cdcfah.com/cp/1012.html"><div id="etvnuli" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg" alt="SDH光端機(jī)烽火STM-4 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>SDH光端機(jī)烽火STM-4 深圳市騰云科創(chuàng)供應(yīng)「深圳市騰云科創(chuàng)供應(yīng)」</p></a></li><li><a href="http://m.cdcfah.com/cp/2515279.html"><div id="mbtlnkw" class="reImg"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637236134615458985/8379220.jpg" alt="山東正規(guī)中興S320 深圳市騰云科創(chuàng)供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>山東正規(guī)中興S320 深圳市騰云科創(chuàng)供應(yīng)</p></a></li></ul></div></div></section></section><footer class="footer"><div id="w8wtqia" class="container"><p><a href="http://m.cdcfah.com/">首頁(yè)</a> | <a >企業(yè)名錄</a> | <a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a> | <a href="http://m.cdcfah.com/zx/">新聞資訊</a> | <a href="http://m.cdcfah.com/xw/">行業(yè)資訊</a> | <a href="http://m.cdcfah.com/zh/">展會(huì)信息</a> | <a href="http://m.cdcfah.com/sitemap.html">網(wǎng)站地圖</a> | </p><p><p><p>b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰??<a target="_blank">?<span style="white-space:normal;text-indent:24px;"><a target="_blank"><span style="font-family:" font-size:13.3333px;text-align:center;white-space:pre-wrap;caret-color:#1e6fff;background-color:#ffffff;"="">滬ICP備18002634號(hào)-32</span></a> </span><br /></a>??<span>??</span></p></p><p style="text-align:center;white-space:normal;"> <br /> </p> <p style="white-space:normal;text-align:center;"> <a target="_blank"></a> </p></p></div></footer> <footer> <a href="http://m.cdcfah.com/" title="六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu id="qgqbi"></menu><blockquote id="qgqbi"></blockquote><track id="qgqbi"><label id="qgqbi"></label></track><tbody id="qgqbi"></tbody><legend id="qgqbi"></legend><th id="qgqbi"><button id="qgqbi"></button></th><listing id="qgqbi"><rt id="qgqbi"></rt></listing><sup id="qgqbi"><dd id="qgqbi"><tbody id="qgqbi"></tbody></dd></sup><menu id="qgqbi"><xmp id="qgqbi"></xmp></menu><fieldset id="qgqbi"><acronym id="qgqbi"></acronym></fieldset><wbr id="qgqbi"><mark id="qgqbi"><strong id="qgqbi"></strong></mark></wbr><tbody id="qgqbi"><small id="qgqbi"></small></tbody><label id="qgqbi"><tfoot id="qgqbi"></tfoot></label><div id="qgqbi"><th id="qgqbi"><object id="qgqbi"></object></th></div><listing id="qgqbi"></listing><source id="qgqbi"><ins id="qgqbi"></ins></source><noframes id="qgqbi"></noframes><noscript id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"></tt></strike></noscript><strike id="qgqbi"><rp id="qgqbi"></rp></strike><dl id="qgqbi"></dl><th id="qgqbi"></th><acronym id="qgqbi"></acronym><center id="qgqbi"><input id="qgqbi"><div id="qgqbi"><th id="qgqbi"></th></div></input></center><label id="qgqbi"></label><tr id="qgqbi"><label id="qgqbi"><center id="qgqbi"></center></label></tr><menuitem id="qgqbi"><em id="qgqbi"><legend id="qgqbi"></legend></em></menuitem><pre id="qgqbi"></pre><fieldset id="qgqbi"><address id="qgqbi"><abbr id="qgqbi"><dl id="qgqbi"></dl></abbr></address></fieldset><sup id="qgqbi"><form id="qgqbi"></form></sup><form id="qgqbi"></form> <form id="qgqbi"></form><center id="qgqbi"><rp id="qgqbi"></rp></center><code id="qgqbi"></code><option id="qgqbi"><i id="qgqbi"><tr id="qgqbi"></tr></i></option><address id="qgqbi"></address><pre id="qgqbi"></pre><wbr id="qgqbi"></wbr><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"></bdo></delect></dl><table id="qgqbi"><p id="qgqbi"></p></table><label id="qgqbi"><xmp id="qgqbi"><noscript id="qgqbi"><dl id="qgqbi"></dl></noscript></xmp></label><cite id="qgqbi"></cite><acronym id="qgqbi"><object id="qgqbi"><big id="qgqbi"></big></object></acronym><rp id="qgqbi"></rp><tt id="qgqbi"></tt><output id="qgqbi"></output><table id="qgqbi"><p id="qgqbi"><ruby id="qgqbi"></ruby></p></table><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><u id="qgqbi"></u><bdo id="qgqbi"><tr id="qgqbi"><dfn id="qgqbi"></dfn></tr></bdo><strike id="qgqbi"><font id="qgqbi"></font></strike><s id="qgqbi"></s><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"><pre id="qgqbi"></pre></code></samp></acronym><cite id="qgqbi"></cite><form id="qgqbi"><dl id="qgqbi"><pre id="qgqbi"><label id="qgqbi"></label></pre></dl></form><center id="qgqbi"><rp id="qgqbi"></rp></center><font id="qgqbi"></font><menu id="qgqbi"></menu><small id="qgqbi"><strong id="qgqbi"><sup id="qgqbi"><form id="qgqbi"></form></sup></strong></small><label id="qgqbi"><tfoot id="qgqbi"><em id="qgqbi"></em></tfoot></label><optgroup id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></optgroup><label id="qgqbi"></label><meter id="qgqbi"><noframes id="qgqbi"><i id="qgqbi"><ins id="qgqbi"></ins></i></noframes></meter><kbd id="qgqbi"></kbd><b id="qgqbi"></b><dl id="qgqbi"><delect id="qgqbi"><th id="qgqbi"><span id="qgqbi"></span></th></delect></dl><font id="qgqbi"></font><small id="qgqbi"></small><mark id="qgqbi"></mark><del id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></del><dd id="qgqbi"><ruby id="qgqbi"><menu id="qgqbi"></menu></ruby></dd><th id="qgqbi"><em id="qgqbi"></em></th><abbr id="qgqbi"></abbr><span id="qgqbi"><kbd id="qgqbi"><dfn id="qgqbi"><sub id="qgqbi"></sub></dfn></kbd></span><ins id="qgqbi"></ins><s id="qgqbi"><progress id="qgqbi"></progress></s><th id="qgqbi"></th><bdo id="qgqbi"></bdo><blockquote id="qgqbi"></blockquote><b id="qgqbi"></b><nav id="qgqbi"><div id="qgqbi"></div></nav> <meter id="qgqbi"><dfn id="qgqbi"><source id="qgqbi"><tr id="qgqbi"></tr></source></dfn></meter><tfoot id="qgqbi"></tfoot><big id="qgqbi"><pre id="qgqbi"><s id="qgqbi"></s></pre></big><small id="qgqbi"></small><table id="qgqbi"><td id="qgqbi"><sup id="qgqbi"></sup></td></table><form id="qgqbi"><tr id="qgqbi"></tr></form><tr id="qgqbi"><fieldset id="qgqbi"><thead id="qgqbi"><strong id="qgqbi"></strong></thead></fieldset></tr><ul id="qgqbi"></ul><center id="qgqbi"><optgroup id="qgqbi"><div id="qgqbi"></div></optgroup></center><rp id="qgqbi"><input id="qgqbi"><blockquote id="qgqbi"><th id="qgqbi"></th></blockquote></input></rp><tbody id="qgqbi"></tbody><form id="qgqbi"><u id="qgqbi"><fieldset id="qgqbi"></fieldset></u></form><rp id="qgqbi"></rp><b id="qgqbi"><small id="qgqbi"></small></b><dd id="qgqbi"></dd><kbd id="qgqbi"></kbd><code id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"></ul></pre></code><strong id="qgqbi"></strong><cite id="qgqbi"><sub id="qgqbi"></sub></cite><object id="qgqbi"></object><dfn id="qgqbi"></dfn><pre id="qgqbi"></pre><xmp id="qgqbi"></xmp><pre id="qgqbi"></pre><sup id="qgqbi"><form id="qgqbi"><cite id="qgqbi"></cite></form></sup><tt id="qgqbi"><tbody id="qgqbi"><acronym id="qgqbi"><b id="qgqbi"></b></acronym></tbody></tt><input id="qgqbi"></input><acronym id="qgqbi"><samp id="qgqbi"><code id="qgqbi"></code></samp></acronym><nobr id="qgqbi"><pre id="qgqbi"><ul id="qgqbi"><strong id="qgqbi"></strong></ul></pre></nobr><menuitem id="qgqbi"><em id="qgqbi"><wbr id="qgqbi"><mark id="qgqbi"></mark></wbr></em></menuitem><dl id="qgqbi"></dl><rp id="qgqbi"><input id="qgqbi"><div id="qgqbi"></div></input></rp><div id="qgqbi"><button id="qgqbi"><pre id="qgqbi"><meter id="qgqbi"></meter></pre></button></div><address id="qgqbi"></address><thead id="qgqbi"><abbr id="qgqbi"><sup id="qgqbi"></sup></abbr></thead><em id="qgqbi"></em><ul id="qgqbi"><listing id="qgqbi"><wbr id="qgqbi"></wbr></listing></ul><listing id="qgqbi"></listing><wbr id="qgqbi"></wbr><thead id="qgqbi"><abbr id="qgqbi"><strike id="qgqbi"></strike></abbr></thead><menuitem id="qgqbi"></menuitem><pre id="qgqbi"></pre><pre id="qgqbi"></pre><dl id="qgqbi"><delect id="qgqbi"><bdo id="qgqbi"><span id="qgqbi"></span></bdo></delect></dl><ruby id="qgqbi"></ruby><pre id="qgqbi"><strike id="qgqbi"><tt id="qgqbi"><i id="qgqbi"></i></tt></strike></pre><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset><cite id="qgqbi"><sub id="qgqbi"></sub></cite><optgroup id="qgqbi"></optgroup><fieldset id="qgqbi"><address id="qgqbi"></address></fieldset></div> <div class="friend-links"> <a href="http://www.bjcldhs.com">亚洲另类在线欧美制服</a> <a href="http://www.ahlxmyzz.com">色七七在线综合视频</a> <a href="http://www.junzishuo.com">亚洲中文字幕久久精品91</a> <a href="http://www.yhzblp.com">国产精品自在在线免费</a> <a href="http://www.zwlkg.com">久久国产乱子伦精品免费午夜</a> </div> </footer> <script> (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> </body><div id="1bzdc" class="pl_css_ganrao" style="display: none;"><abbr id="1bzdc"><dl id="1bzdc"><font id="1bzdc"></font></dl></abbr><noframes id="1bzdc"></noframes><form id="1bzdc"></form><p id="1bzdc"></p><bdo id="1bzdc"><span id="1bzdc"></span></bdo><nav id="1bzdc"></nav><strike id="1bzdc"><font id="1bzdc"><tbody id="1bzdc"><tfoot id="1bzdc"></tfoot></tbody></font></strike><wbr id="1bzdc"></wbr><delect id="1bzdc"></delect><cite id="1bzdc"><sub id="1bzdc"><input id="1bzdc"></input></sub></cite><p id="1bzdc"></p><meter id="1bzdc"><noframes id="1bzdc"><source id="1bzdc"><ins id="1bzdc"></ins></source></noframes></meter><font id="1bzdc"></font><legend id="1bzdc"></legend><acronym id="1bzdc"></acronym><nobr id="1bzdc"></nobr><sup id="1bzdc"></sup><strong id="1bzdc"></strong><pre id="1bzdc"><strike id="1bzdc"><option id="1bzdc"><i id="1bzdc"></i></option></strike></pre><ol id="1bzdc"></ol><tr id="1bzdc"><abbr id="1bzdc"></abbr></tr><source id="1bzdc"><tr id="1bzdc"></tr></source><output id="1bzdc"></output><style id="1bzdc"></style><tr id="1bzdc"><abbr id="1bzdc"></abbr></tr><pre id="1bzdc"></pre><form id="1bzdc"><u id="1bzdc"><fieldset id="1bzdc"></fieldset></u></form><code id="1bzdc"></code><label id="1bzdc"><xmp id="1bzdc"></xmp></label><u id="1bzdc"></u><legend id="1bzdc"></legend><thead id="1bzdc"><sup id="1bzdc"><form id="1bzdc"></form></sup></thead><video id="1bzdc"><menu id="1bzdc"><big id="1bzdc"></big></menu></video><b id="1bzdc"></b><output id="1bzdc"><table id="1bzdc"><dd id="1bzdc"><ruby id="1bzdc"></ruby></dd></table></output><bdo id="1bzdc"></bdo><sup id="1bzdc"></sup><legend id="1bzdc"></legend><dfn id="1bzdc"><sub id="1bzdc"><tr id="1bzdc"></tr></sub></dfn><object id="1bzdc"></object><source id="1bzdc"><ul id="1bzdc"><abbr id="1bzdc"></abbr></ul></source><delect id="1bzdc"></delect><track id="1bzdc"></track><rp id="1bzdc"></rp><label id="1bzdc"></label><video id="1bzdc"><menu id="1bzdc"><samp id="1bzdc"><track id="1bzdc"></track></samp></menu></video><wbr id="1bzdc"><kbd id="1bzdc"></kbd></wbr><tfoot id="1bzdc"></tfoot><center id="1bzdc"><abbr id="1bzdc"><sup id="1bzdc"><font id="1bzdc"></font></sup></abbr></center><address id="1bzdc"></address></div></html>