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href="http://www.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/second-txcp_csjhsb/">傳輸、交換設(shè)備</a>?<a href="http://www.cdcfah.com/cp/third-csjhsb_dhjhj/">電話交換機</a>?永川區(qū)程控交換機系統(tǒng)報價南京德世偉業(yè)軟件技術(shù)供應(yīng)</p><div id="she8pef" class="leftbox clearfix"><h1>永川區(qū)程控交換機系統(tǒng)報價南京德世偉業(yè)軟件技術(shù)供應(yīng)</h1><div id="dxu7gvh" class="proBig"><div id="7df878g" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/17/14/636989701226092028_njdswy_1867050.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="w28bdub" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/7/17/14/636989701226092028_njdswy_1867050.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ixuelse" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>永川區(qū)程控交換機系統(tǒng)報價</p><p><span>***更新：</span>2020-05-23 04:25:45</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="scubd3y" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南京德世偉業(yè)軟件技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>李永亮</p><p><span>郵箱: </span>634765682@qq.com</p><p><span>電話: </span>13276689930</p><p><span>傳真: </span>025_84728227</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>025-84728227</p><p><span>地址: </span>經(jīng)濟開發(fā)區(qū)恒盛路5號4號樓215-D室</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="ti28sol" class="page-proshow02"><p class="title">詳細說明</p><div id="87lhjgd" class="box"><p><p style="text-indent:25px">程控電話是指接入程控電話交換機的電話，程控電話交換機是利用電子計算機來控制的交換機，它以預(yù)先編好的程序來控制交換機的接續(xù)動作。此程控電話與一般機電式交換機的電話相比，具有接續(xù)速度快、業(yè)務(wù)功能多、交換效率高、聲音清晰、質(zhì)量可靠等優(yōu)點。程控交換機，也稱為程控數(shù)字交換機或數(shù)字程控交換機，通常專指用于電話交換網(wǎng)的交換設(shè)備，它以計算機程序控制電話的接續(xù)。數(shù)字程控交換機分為長途交換機，永川區(qū)程控交換機系統(tǒng)報價，本地交換機等。另外還有**于信令網(wǎng)和智能網(wǎng)的類型。數(shù)字程控交換機的基本功能為：用戶線接入，中繼接續(xù)，計費，設(shè)備管理等。本地交換機自動檢測用戶的摘機動作，給用戶的電話機回送撥號音，接收話機的產(chǎn)生的脈沖信號或雙音多頻(DTMF)信號，然后完成從主叫到被叫號碼的接續(xù)(被叫號碼可能在同一個交換機也可能在不同的交換機)。在接續(xù)完成后，交換機將保持連接，直到檢測出通信的一方掛機。程控電話交換機的作用是為中小企業(yè)構(gòu)架的內(nèi)部通訊網(wǎng)絡(luò)，幫助企業(yè)內(nèi)部與外界信息的傳遞與交流、生產(chǎn)調(diào)度與指令的傳達，永川區(qū)程控交換機系統(tǒng)報價，避免走來走去或跑上跑下的麻煩、節(jié)省了相互通話的費用(內(nèi)部電話無需支付電話費、無月租費，永川區(qū)程控交換機系統(tǒng)報價、無承諾話費)，重要的在于為企業(yè)提高工作效率、又控制辦公話費</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="永川區(qū)程控交換機系統(tǒng)報價" src="http://tyunfile.71360.com/UpLoadFile/2019/7/17/14/636989701226092028_njdswy_1867050.png"></div><p style="text-indent:25px">防雷擊可采取以下措施： 1．程控交換機應(yīng)有良好的工作接地和保護接地.接地電阻值應(yīng)小于3Ω..每年都應(yīng)檢測并有檢測報告.. 2．程控交換機各控制板和外接電纜插口處應(yīng)安裝光電隔離器.. 3．電話電纜的屏蔽接地線應(yīng)和保護接地極連接良好.. 4．是程控交換機供電的交流電路(從配電室到交換機)應(yīng)采用屏蔽電纜.屏蔽層應(yīng)和保護接地極連接良好.. 交換機遭雷擊損壞大多由雷電天氣在網(wǎng)線上產(chǎn)生的感應(yīng)電壓經(jīng)交換機信號端口竄入機內(nèi)造成，一般的整機防雷措施如裝設(shè)避雷針、機殼接地等無法解決這個問題。一般交換機信號端口內(nèi)部都設(shè)計有防雷擊電路，可以抵抗一般的輕微雷擊，但對大型雷電產(chǎn)生的雷擊則有些力不從心。為進一步解決信號端口引進的雷擊問題，可以采取以下一些措施： 1、外線盡量使用鎧裝電纜，并將鎧裝層妥善接地； 2、在外線與交換機端口之間加接防雷單元，具體措施有： ①串接防雷模塊， ②串接LC吸收單元， ③并接過壓保護元件， ④串接其它防雷保護電路。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="永川區(qū)程控交換機系統(tǒng)報價" src="http://tyunfile.71360.com/UpLoadFile/2019/7/17/14/636989701226871328_njdswy_4837658.png"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/12171.html</p></div></div></div></div></div><div id="ncz3mjl" class="page-right twoColRt"><div id="o889gia" class="box01 margin10 clearfix"><h3><a 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