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class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://m.cdcfah.com/cp/second-txcp_csjhsb/">傳輸、交換設(shè)備</a>?<a href="http://m.cdcfah.com/cp/third-csjhsb_dhjhj/">電話交換機(jī)</a>?景德鎮(zhèn)質(zhì)量程控交換機(jī) 南京德世偉業(yè)軟件技術(shù)供應(yīng)</p><div id="n3jhfdt" class="leftbox clearfix"><h1>景德鎮(zhèn)質(zhì)量程控交換機(jī) 南京德世偉業(yè)軟件技術(shù)供應(yīng)</h1><div id="vzh5hnz" class="proBig"><div id="jndjh55" 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="3xtbz7f" 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="tx7trzx" 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>景德鎮(zhèn)質(zhì)量程控交換機(jī)</p><p><span>***更新：</span>2020-06-18 13:19:23</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="drpfdzp" 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(jī): </span>025-84728227</p><p><span>地址: </span>經(jīng)濟(jì)開發(fā)區(qū)恒盛路5號4號樓215-D室</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="lpx3db3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ntrhnbj" class="box"><p><p style="text-indent:25px">設(shè)備功能數(shù)字程控交換機(jī) 的基本功能主要為：用戶線接入，中繼接續(xù)，計費(fèi)，設(shè)備管理等。本地交換機(jī)自動檢測用戶的摘機(jī)動作，給用戶的電話機(jī)回送撥號音，接收話機(jī)產(chǎn)生的脈沖信號或雙音多頻（DTMF)信號，然後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(jī)也可能在不同的交換機(jī)），景德鎮(zhèn)質(zhì)量程控交換機(jī)。在接續(xù)完成後，交換機(jī)將保持連接，直到檢測出通信的一方掛機(jī)。其中通話接續(xù)部分是利用交換機(jī)中的數(shù)字交換網(wǎng)絡(luò)，采用PCM方式實(shí)現(xiàn)數(shù)字交換的，控制部分是通過軟件由計算機(jī)來實(shí)現(xiàn)的。基本構(gòu)成電話交換機(jī)的主要任務(wù)是實(shí)現(xiàn)用戶間通話的接續(xù)?；緞澐譃閮纱蟛糠郑涸捖吩O(shè)備和控制設(shè)備。話路設(shè)備主要包括各種接口電路（如用戶線接口和中繼線接口電路等)和交換 (或接續(xù)）網(wǎng)絡(luò)；控制設(shè)備在縱橫制交換機(jī)中主要包括標(biāo)志器與記發(fā)器，而在程控交換機(jī)中，控制設(shè)備則為電子計算機(jī)，包括**處理器(CPU),存儲器和輸入 /輸出設(shè)備。程控交換機(jī)實(shí)質(zhì)上是采用計算機(jī)進(jìn)行“存儲程序控制”的交換機(jī)，景德鎮(zhèn)質(zhì)量程控交換機(jī)，景德鎮(zhèn)質(zhì)量程控交換機(jī)，它將各種控制功能，方法編成程序，存入存儲器，利用對外部狀態(tài)的掃描數(shù)據(jù)和存儲程序來控制，管理整個交換系統(tǒng)的工作。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="景德鎮(zhèn)質(zhì)量程控交換機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/7/17/14/636989701226092028_njdswy_1867050.png"></div><p style="text-indent:25px">程控電話是指接入程控電話交換機(jī)的電話，程控電話交換機(jī)是利用電子計算機(jī)來控制的交換機(jī)，它以預(yù)先編好的程序來控制交換機(jī)的接續(xù)動作。此程控電話與一般機(jī)電式交換機(jī)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(diǎn)。程控交換機(jī)，也稱為程控數(shù)字交換機(jī)或數(shù)字程控交換機(jī)，通常專指用于電話交換網(wǎng)的交換設(shè)備，它以計算機(jī)程序控制電話的接續(xù)。數(shù)字程控交換機(jī)分為長途交換機(jī)，本地交換機(jī)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(jī)的基本功能為：用戶線接入，中繼接續(xù)，計費(fèi)，設(shè)備管理等。本地交換機(jī)自動檢測用戶的摘機(jī)動作，給用戶的電話機(jī)回送撥號音，接收話機(jī)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(jī)也可能在不同的交換機(jī))。在接續(xù)完成后，交換機(jī)將保持連接，直到檢測出通信的一方掛機(jī)。程控電話交換機(jī)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(dá)，避免走來走去或跑上跑下的麻煩、節(jié)省了相互通話的費(fèi)用(內(nèi)部電話無需支付電話費(fèi)、無月租費(fèi)、無承諾話費(fèi))，重要的在于為企業(yè)提高工作效率、又控制辦公話費(fèi)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="景德鎮(zhèn)質(zhì)量程控交換機(jī)" src="http://tyunfile.71360.com/UpLoadFile/2019/7/17/14/636989701226871328_njdswy_4837658.png"></div><p style="text-indent:25px"> 對電話程控交換機(jī)遭受雷擊的情況分析：***.電話程控交換機(jī)是由多塊功能電路板拼插組成.電路板上有許多功能集成塊、半導(dǎo)體元件及電感、電容、電阻.其**能集成塊中大量采用CMOS電路.工作電壓在0.7~5V..CMOS電路的過電壓能力弱.容易損壞.造成電路板甚至整個程控交換機(jī)系統(tǒng)故障..第二.由于電話交換機(jī)是很多電纜、電線的**點(diǎn)..電話分機(jī)線路多在幾十米至上百米的長度.涉及區(qū)域廣、范圍大.更易受雷擊.. 　　這樣．即使是感應(yīng)雷所形成的感應(yīng)過電壓對電話程控交換機(jī)都能形成威脅..雷擊在建筑物(機(jī)房或辦公樓)、設(shè)備(電話程控交換機(jī))及電纜電路的附近發(fā)生；或閃電不直接對地放電.只是在距建筑物較近的云層和云層之間放電.閃電釋放電荷所形成的強(qiáng)電磁場.通過電話程控交換機(jī)的密集的網(wǎng)線、電源電路和數(shù)據(jù)傳輸電路中感應(yīng)生成過電壓。這種“過電壓”或?qū)㈦娫茨K.或?qū)?shù)據(jù)存儲器及微處理器、電話程控交換機(jī)用戶板擊壞。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/301822.html</p></div></div></div></div></div><div id="p7ln5xn" class="page-right twoColRt"><div id="vpfdbzx" class="box01 margin10 clearfix"><h3><a 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