新疆光傳輸設備SDH烽火RET 深圳市騰云科創(chuàng)供應-b2b網(wǎng)站_b2b電子商務平臺【買產品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 二纖雙向復用段保護環(huán)將每根光纖的前一半時隙傳送主用業(yè)務，后一半時隙傳送額外業(yè)務，也就是說一根光纖的保護時隙用來保護另一根光纖上的主用業(yè)務。業(yè)務容量為四纖雙向復用段保護環(huán)的1/2，即M/2（STM-N），其中M是節(jié)點數(shù)"><meta name="keywords" content="新疆光傳輸設備SDH烽火RET,烽火"><link rel="canonical" href="http://www.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 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深圳市騰云科創(chuàng)供應</p><div id="vegnuov" class="leftbox clearfix"><h1>新疆光傳輸設備SDH烽火RET 深圳市騰云科創(chuàng)供應</h1><div id="gacj8p8" class="proBig"><div id="3yv3f3x" 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="c32x3pz" 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="dxprtcy" 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>產品關鍵詞：</span>新疆光傳輸設備SDH烽火RET,烽火</p><p><span>***更新：</span>2021-01-27 06:06:58</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="875dxug" 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="jdfmofm" class="page-proshow02"><p class="title">詳細說明</p><div id="xm27l5p" class="box"><p><p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 二纖雙向復用段保護環(huán)將每根光纖的前一半時隙傳送主用業(yè)務，后一半時隙傳送額外業(yè)務，也就是說一根光纖的保護時隙用來保護另一根光纖上的主用業(yè)務。業(yè)務容量為四纖雙向復用段保護環(huán)的1/2，即M/2（STM-N），其中M是節(jié)點數(shù)，新疆光傳輸設備SDH烽火RET。它在組網(wǎng)中使用得較多，主要用于622M和2.5G系統(tǒng)，也是適用于業(yè)務分散的網(wǎng)絡。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">二纖單向通道保護環(huán)和二纖雙向復用段保護環(huán)的比較：</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 業(yè)務容量（單考慮主用業(yè)務）：</span><span style="font-family:"Microsoft YaHei";font-size:16px;">單向通道保護環(huán)的比較大業(yè)務容量是STM-N，二纖雙向復用段保護環(huán)的業(yè)務容量為M/2 ×STM-N（M是環(huán)上節(jié)點數(shù)）。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 復雜性：</span><span style="font-family:"Microsoft YaHei";font-size:16px;">二纖單向通道保護環(huán)，無論從實現(xiàn)控制的復雜性，新疆光傳輸設備SDH烽火RET，還是設備的開發(fā)和制作難度來說，都是各種倒換環(huán)中比較簡單的。由于它不涉及APS的協(xié)議處理過程，因而業(yè)務倒換時間也比較短。二纖雙向復用段保護環(huán)的控制邏輯和設備開發(fā)制作則是各種倒換環(huán)中比較復雜的，新疆光傳輸設備SDH烽火RET。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 兼容性。</span> 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。新疆光傳輸設備SDH烽火RET</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆光傳輸設備SDH烽火RET,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845103378907/6385040.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 近些年，點播電視、多媒體業(yè)務和其他寬帶業(yè)務如雨后春筍般紛紛出現(xiàn)，為SDH應用在接入網(wǎng)中提供了廣闊的空間。SDH技術應用于接入網(wǎng)的好處是：1）對于要求高可靠、高質量業(yè)務的大型企事業(yè)用戶，SDH可以提供較為理想的網(wǎng)絡性能和業(yè)務可靠性。2）可以將網(wǎng)管范圍擴展至用戶端，簡化維護工作。3）利用SDH固有靈活性，可使網(wǎng)絡運營者更快、更有效地提供用戶所需的長期和短期業(yè)務需求。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 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）上提供高質量專線、ATM 、IP 等業(yè)務的接入、傳送和保護。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 新疆光傳輸設備SDH烽火RET環(huán)形網(wǎng)拓撲實際上是指將鏈形拓撲首尾相連。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆光傳輸設備SDH烽火RET,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">SDH的基本傳輸原理：</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> SDH采用的信息結構等級稱為同步傳送模塊STM－N（Synchronous Transport，N=1，4， 16，64），比較基本的模塊為STM－1，四個STM－1同步復用構成STM－4，16個STM－1或四個 STM－4同步復用構成STM－16；SDH采用塊狀的幀結構來承載信息，每幀由縱向9行和橫向 270×N列字節(jié)組成，每個字節(jié)含8bit，整個幀結構分成段開銷（Section OverHead，SOH）區(qū)、STM－N凈負荷區(qū)和管理單元指針（AU PTR）區(qū)三個區(qū)域，其中段開銷區(qū)主要用于網(wǎng)絡的運行、管理、維護及指配以保證信息能夠正常靈活地傳送，它又分為再生段開銷和復用段開銷。</span> </p><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">SDH的缺點，</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 1，頻帶利用率低。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 可靠性和有效性是矛盾的，增加了有效性必將降低可靠性，增加了可靠性也會相應的使有效性降低。例如，收音機的選擇性增加，可選的電臺就增多，這樣就提高了選擇性。但是，由于這時頻帶相應的會變窄，必然會使音質下降，也就降低了可靠性。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 2，指針調整機理復雜。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> SDH體制可以從高速信號（STM-1）中直接下低速信號（例如2Mbit/s），省去了多級復用，解復用過程，這種功能的實現(xiàn)是通過指針機理來完成的。但是，指針功能的實現(xiàn)增加了系統(tǒng)的復雜性。比較重要的是系統(tǒng)產生SDH的一種特有抖動—由指針調整引起的結合抖動。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 3，軟件的大量使用對系統(tǒng)的安全性的影響。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">在***無處不在的***，軟件的的大量使用，很容易受到破壞，加上人為操作，軟件故障，對系統(tǒng)的影響也是致命的。</span> </p> <p> <br /> </p> <p> <br /> 但是由于系統(tǒng)的冗余度高，必會使系統(tǒng)有效性降低，成本高且結構復雜。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="新疆光傳輸設備SDH烽火RET,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg"></div><p> <span style="font-size:16px;font-family:"Microsoft YaHei";"> 在各種寬帶光纖接入網(wǎng)技術中，采用了SDH技術的接入網(wǎng)系統(tǒng)是應用比較普遍的。SDH的誕生解決了由于入戶媒質的帶寬限制而跟不上骨干網(wǎng)和用戶業(yè)務需求的發(fā)展,而產生了用戶與網(wǎng)之間的接入"瓶頸"的問題，同時提高了傳輸網(wǎng)上大量帶寬的利用率。SDH技術自從90年代引入以來，至今已經(jīng)是一種成熟、標準的技術，在骨干網(wǎng)中被采用，且價格越來越低，在接入網(wǎng)中應用可以將SDH技術在網(wǎng)中的巨大帶寬優(yōu)勢和技術優(yōu)勢帶入接入網(wǎng)領域，充分利用SDH同步復用、標準化的光接口、強大的網(wǎng)管能力、靈活網(wǎng)絡拓撲能力和高可靠性帶來好處，在接入網(wǎng)的建設發(fā)展中長期受益。</span> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 在進行字節(jié)間插復用過程中，各幀的信息凈負荷和指針字節(jié)按原值進行字節(jié)間插復用。四川SDH光端機烽火NMU</p><p style="text-indent:25px">在各種寬帶光纖接入網(wǎng)技術中，采用SDH技術的接入網(wǎng)系統(tǒng)是應用**普遍的。新疆光傳輸設備SDH烽火RET</p><p> <span style="font-size:16px;font-family:"Microsoft YaHei";">電力通信專門用途網(wǎng)的特點</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">隨著網(wǎng)絡傳輸技術的不斷發(fā)展, 電力系統(tǒng)中基于寬帶數(shù)據(jù)網(wǎng)的應用也越來越多, 如圖像監(jiān)控、實時數(shù)據(jù)采集、實時控制、各種管理信息系統(tǒng)(MIS) 等,原先采用窄帶數(shù)據(jù)網(wǎng)承載的業(yè)務也逐步轉移到寬帶數(shù)據(jù)網(wǎng)上。除此之外, 電力通信專門用途網(wǎng)本身還具有一些特點:</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(1) 電力通信網(wǎng)基本上應以光纖通信為主, 以微波通信作備份或補充。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(2) 光纖網(wǎng)絡拓撲結構復雜, 整個網(wǎng)絡節(jié)點數(shù)非常多, 需要傳輸設備有很強的組網(wǎng)和網(wǎng)絡管理能力,且對設備的可靠性要求非常高。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(3) 電力系統(tǒng)所敷設光纜通常芯數(shù)較少, 考慮到今后可能作為電信運營商, 應盡量節(jié)約光纖通信系統(tǒng)所占用的光纖芯數(shù)。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">(4) 為滿足整個電力部門目前和將來的所有通信需求, 需要做到話音、視頻和數(shù)據(jù)多網(wǎng)融合。</span> </p> <p> <span style="font-size:16px;font-family:"Microsoft YaHei";">（5) 目前的業(yè)務接口需求主要有POTS、2W/4W、E&M、V.24、V.35、ISDN、E1、E3/T 3、10Mb/100Mb以太網(wǎng)接口等, 未來的業(yè)務需求大,多基于寬帶數(shù)據(jù)網(wǎng)。采用基于SDH 和MSTP, 可使調度網(wǎng)實現(xiàn)計算機網(wǎng)絡的遠程互聯(lián), 在SDH平臺上實現(xiàn)以太網(wǎng)業(yè)務傳送功能, 從而實現(xiàn)二網(wǎng)合一, 且極大地降低網(wǎng)絡建設成本。</span> 新疆光傳輸設備SDH烽火RET</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司位于沙井街道蠔四社區(qū)街尾塘一巷5號幸福家園A棟、B棟、C棟、D棟D棟110D。公司自成立以來，以質量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下SDH光傳輸設備，光端機，PCM接入設備，PTN OTN光傳輸設備深受客戶的喜愛。公司從事通信產品多年，有著創(chuàng)新的設計、強大的技術，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產品及服務。騰云科創(chuàng)秉承“客戶為尊、服務為榮、創(chuàng)意為先、技術為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3031204.html</p></div></div></div></div></div><div id="zroaxo3" class="page-right twoColRt"><div id="bkmy7kh" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gvcefwd" class="recomPic likePro"><a href="http://www.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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="lqxp2vm" class="recomPic likePro"><a 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