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href="http://m.cdcfah.com/cp/">產品供應</a>?<a href="http://m.cdcfah.com/cp/second-_txcp/">通信產品</a>?<a href="http://m.cdcfah.com/cp/third-txcp_jrsbtn/">接入設備</a>?青海光端機烽火PEOW 深圳市騰云科創(chuàng)供應</p><div id="mes0cwy" class="leftbox clearfix"><h1>青海光端機烽火PEOW 深圳市騰云科創(chuàng)供應</h1><div id="scg2uo4" class="proBig"><div id="2qckkk2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/9165528.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="6cg0oco" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/9165528.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ausoyy2" class="content"><p><span>需求數量：</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>青海光端機烽火PEOW,烽火</p><p><span>***更新：</span>2020-08-09 08:09:05</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="sweiweo" 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="y2sq2my" class="page-proshow02"><p class="title">詳細說明</p><div id="2siuwke" class="box"><p><p> 電力通信**網的特點 </p> <p> 隨著網絡傳輸技術的不斷發(fā)展, 電力系統(tǒng)中基于寬帶數據網的應用也越來越多, 如圖像監(jiān)控、實時數據采集、實時控制、各種管理信息系統(tǒng)(MIS) 等,原先采用窄帶數據網承載的業(yè)務也逐步轉移到寬帶數據網上。除此之外, 電力通信**網本身還具有一些特點: </p> <p> (1) 電力通信網基本上應以光纖通信為主, 以微波通信作備份或補充。 </p> <p> (2) 光纖網絡拓撲結構復雜, 整個網絡節(jié)點數非常多, 需要傳輸設備有很強的組網和網絡管理能力,且對設備的可靠性要求非常高。 </p> <p> (3) 電力系統(tǒng)所敷設光纜通常芯數較少, 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。 </p> <p> (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、視頻和數據多網融合。 </p> <p> （5) 目前的業(yè)務接口需求主要有POTS、2W/4W、E&M、V.24、V.35，青海光端機烽火PEOW、ISDN，青海光端機烽火PEOW、E1、E3/T 3、10Mb/100Mb以太網接口等, 未來的業(yè)務需求大,多基于寬帶數據網，青海光端機烽火PEOW。采用基于SDH 和MSTP, 可使調度網實現計算機網絡的遠程互聯(lián), 在SDH平臺上實現以太網業(yè)務傳送功能, 從而實現二網合一, 且極大地降低網絡建設成本。標準的開放型光接口可以在基本光纜段上實現橫向兼容，降低了聯(lián)網成本。青海光端機烽火PEOW</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青海光端機烽火PEOW,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/9165528.jpg"></div><p> 電力通信**網的構建思路 </p> <p> 電力通信網可以在樞紐節(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網元設備組網或STM-21網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等寬帶數據接入則在SDH傳輸平臺上提供,這樣能夠充分保證帶寬和服務質量(QoS)。環(huán)網光纜建設綜合考慮通信、計算機網絡及有線電視傳輸的需要,采用不等芯數配置, 做到既滿足要求, 又節(jié)省投資。考慮到全網的性能價格比, 比較好采用系列化較完整的產品, 對不同節(jié)點選用不同配置的網元設備, 并能進行統(tǒng)一網管, 以實現有效的分層管理, 便于故障快速定位, 從而有效減輕維護工作量。隨著網絡規(guī)模的擴大, 應實現多廠家的設備管理, 要求網管支持標準接口, 即網管系統(tǒng)具備開放性。 </p> <p> 通過基于SDH 的MSTP, 可支持全業(yè)務, 局域網互聯(lián)帶寬可按VC212×N (1～ 48) 平滑設置, 可利用SDH 層的網絡自愈功能實現電信級的保護, 統(tǒng)一的網管方便網絡維護。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方式具有其明顯的優(yōu)勢。寧夏銷售光傳輸設備烽火ASON 780B目前環(huán)形網絡的拓撲結構用得很多，因為環(huán)形網具有較強的自愈功能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青海光端機烽火PEOW,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105205079/5635847.jpg"></div><p> SDH的基本傳輸原理 </p> <p> 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），**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； </p><p> 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，為SDH應用在接入網中提供了廣闊的空間。SDH技術應用于接入網的好處是：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絡性能和業(yè)務可靠性。2）可以將網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。 </p> <p> <br /> </p> <p> 深圳騰云科創(chuàng)信息咨詢有限公司主營中興ZXMP系列產品：ZXMP S200｜ZXMP S320｜ZXMP S330｜ZXMP S325｜ZXMP S385｜ZXMP S390整機及各型號單板。華為Metro系列產品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機及各型號單板。華為OSN系列產品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機及各型號單板。烽火IBAS系列產品： IBAS780A｜IBAS780B， PCM綜合接入設備介紹：FA16接入設備｜BX10接入設備將所有網元節(jié)點兩兩相連，就形成了網孔形網絡。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="青海光端機烽火PEOW,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg"></div><p> 環(huán)網——自愈環(huán) </p> <p> 自愈環(huán)的分類 </p> <p> 目前環(huán)形網絡的拓撲結構用得很多，因為環(huán)形網具有較強的自愈功能。自愈環(huán)的分類可按保護的業(yè)務級別、環(huán)上業(yè)務的方向、網元節(jié)點間光纖數等來劃分。 </p> <p> 按環(huán)上業(yè)務的方向可將自愈環(huán)分為單向環(huán)和雙向環(huán)兩大類；按網元節(jié)點間的光纖數可將自愈環(huán)劃分為兩纖環(huán)（一對收/發(fā)光纖）和四纖環(huán)（兩對收發(fā)光纖）；按保護方式還可將自愈環(huán)劃分為通道保護環(huán)和復用段保護環(huán)兩大類。 </p> <p> 對于通道保護環(huán)，業(yè)務的保護是以通道為基礎的，也就是保護的是STM-N信號中的某個VC通道，根據環(huán)上的某一個別通道信號的傳輸質量來決定是否倒換，通常利用收端是否收到簡單的AIS信號來決定該通道是否應進行倒換。 </p> <p> 復用段倒換環(huán)是以復用段為基礎的，根據環(huán)上傳輸的復用段信號的質量決定是否倒換。倒換是由K1、K2（b1～b5）字節(jié)所攜帶的APS協(xié)議來啟動的。復用段保護倒換的觸發(fā)條件是LOF、LOS、MS-AIS告警信號。 </p> <p> 通道保護環(huán)的倒換無需APS協(xié)議，采用“并發(fā)優(yōu)收”的倒換機理---簡單。 </p> <p> 復用段保護環(huán)要使用APS協(xié)議，倒換機理---較復雜。積極響應配合客戶做好售后服務，在業(yè)界贏得廣大客戶認可及一致好評。努力奉獻，您的滿意是我們一直的追求。湖南SDH光端機烽火</p><p style="text-indent:25px">各種PDH支路信號復用進STM-N幀的過程都要經歷映射、定位、復用三個步驟。青海光端機烽火PEOW</p><p style="text-indent:25px">SDH出現以前，沿用的數字傳輸設備均屬準同步數字系（ Plesiochronous Digital Hierarchy，縮寫為PDH）。SDH技術的誕生有著其必然性。隨著通信的發(fā)展，要求傳送的信息不*是話音，還有文字、數據、圖像和視頻等。加之數字通信和計算機技術的發(fā)展，在70至80年代，陸續(xù)出現了T1(DS1)／E1載波系統(tǒng)(1.544／2.048Mbps)、X.25幀中繼、ISDN(綜合業(yè)務數字網) 和FDDI(光纖分布式數據接口)等多種網絡技術。隨著信息社會的到來，人們希望現代信息傳輸網絡能快速、經濟、有效地提供各種電路和業(yè)務，而上述網絡技術由于其業(yè)務的單調性，擴展的復雜性，帶寬的局限性，*在原有框架內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。青海光端機烽火PEOW</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司是一家電力設備、電子元器件、電子產品、建筑材料、通信設備(中興通訊及華為技術各系列產品板件及整套設備的銷售與安裝，設備維護及板件返修，以及各設備可配置的單板，用戶電纜，中繼電纜等)、辦公設備、五金交電、化工原料（不含危險及監(jiān)控化學品）的銷售；經濟信息咨詢；經營進出口業(yè)務。的公司，致力于成為客戶業(yè)務創(chuàng)新、通信產品可信賴的合作伙伴。騰云科創(chuàng)深耕行業(yè)多年，始終以客戶的需求為向導，為客戶提供***的[ "SDH光傳輸設備", "光端機", "PCM接入設備", "PTN OTN光傳輸設備" ]。公司堅持以技術創(chuàng)新為發(fā)展引擎，以客戶滿意為動力，目前擁有5人以下專業(yè)人員，年營業(yè)額達到50-100萬元。騰云科創(chuàng)創(chuàng)始人卓龍飛，始終關注客戶，以優(yōu)化創(chuàng)新的科技，竭誠為客戶提供比較好的服務。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/857131.html</p></div></div></div></div></div><div id="y8qeami" class="page-right twoColRt"><div id="a4m8g68" class="box01 margin10 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