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href="http://m.cdcfah.com/cp/third-txcp_jrsbtn/">接入設(shè)備</a>?云南代理光傳輸設(shè)備烽火 E1板卡深圳市騰云科創(chuàng)供應(yīng)</p><div id="7qjwy0w" class="leftbox clearfix"><h1>云南代理光傳輸設(shè)備烽火 E1板卡深圳市騰云科創(chuàng)供應(yīng)</h1><div id="nl3vx98" class="proBig"><div id="73ac22f" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="6pbdkzq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="sqnu74a" 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(chǎn)品關(guān)鍵詞：</span>云南代理光傳輸設(shè)備烽火 E1板卡,烽火</p><p><span>***更新：</span>2020-09-14 09:06:11</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="fyaxztq" 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="pn7j8sw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vp8vfja" class="box"><p><p> SDH的特點(diǎn) </p> <p> 1）SDH傳輸系統(tǒng)在國際上有統(tǒng)一的幀結(jié)構(gòu)數(shù)字傳輸標(biāo)準(zhǔn)速率和標(biāo)準(zhǔn)的光路接口，使網(wǎng)管系統(tǒng)互通，因此有很好的橫向兼容性，它能與現(xiàn)有的PDH完全兼容，并容納各種新的業(yè)務(wù)信號，形成了全球統(tǒng)一的數(shù)字傳輸體制標(biāo)準(zhǔn)，提高了網(wǎng)絡(luò)的可靠性； </p> <p> （2）SDH接入系統(tǒng)的不同等級的碼流在幀結(jié)構(gòu)凈負(fù)荷區(qū)內(nèi)的排列非常有規(guī)律，而凈負(fù)荷與網(wǎng)絡(luò)是同步的，它利用軟件能將高速信號一次直接分插出低速支路信號，實(shí)現(xiàn)了一次復(fù)用的特性，克服了PDH準(zhǔn)同步復(fù)用方式對全部高速信號進(jìn)行逐級分解然后再生復(fù)用的過程，由于**簡化了DXC，減少了背靠背的接口復(fù)用設(shè)備，云南代理光傳輸設(shè)備烽火 E1板卡，改善了網(wǎng)絡(luò)的業(yè)務(wù)傳送透明性； </p> <p> （3）由于采用了較先進(jìn)的分插復(fù)用器（ADM），云南代理光傳輸設(shè)備烽火 E1板卡、數(shù)字交叉連接（DXC）、網(wǎng)絡(luò)的自愈功能和重組功能就顯得非常強(qiáng)大，具有較強(qiáng)的生存率，云南代理光傳輸設(shè)備烽火 E1板卡。因SDH幀結(jié)構(gòu)中安排了信號的5％開銷比特，它的網(wǎng)管功能顯得特別強(qiáng)大，并能統(tǒng)一形成網(wǎng)絡(luò)管理系統(tǒng)，為網(wǎng)絡(luò)的自動化、智能化、信道的利用率以及降低網(wǎng)絡(luò)的維管費(fèi)和生存能力起到了積極作用； SDH接入系統(tǒng)的不同等級的碼流在幀結(jié)構(gòu)凈負(fù)荷區(qū)內(nèi)的排列非常有規(guī)律。云南代理光傳輸設(shè)備烽火 E1板卡</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南代理光傳輸設(shè)備烽火 E1板卡,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/4175838.jpg"></div><p> <p> 傳輸網(wǎng)上的業(yè)務(wù)按流向可分為單向業(yè)務(wù)和雙向業(yè)務(wù)。以環(huán)網(wǎng)為例說明單向業(yè)務(wù)和雙向業(yè)務(wù)的區(qū)別。 </p> <p> <br /> </p> <p> 若A和C之間互通業(yè)務(wù)，A到C的業(yè)務(wù)路由假定是A→B→C，若此時C到A的業(yè)務(wù)路由是C→B→A，則業(yè)務(wù)從A到C和從C到A的路由相同，稱為一致路由。 </p> <p> 若此時C到A的路由是C→D→A，那么業(yè)務(wù)從A到C和業(yè)務(wù)從C到A的路由不同，稱為分離路由。 </p> <p> 我們稱一致路由的業(yè)務(wù)為雙向業(yè)務(wù)，分離路由的業(yè)務(wù)為單向業(yè)務(wù)。常見組網(wǎng)的業(yè)務(wù)方向和路由。 </p> <p> 深圳市騰云科創(chuàng)信息咨詢有限公司以質(zhì)量的服務(wù)、良好的信譽(yù)、雄厚的技術(shù)力量為廣大客戶提供質(zhì)量服務(wù)。我司供應(yīng)中興ZXMP系列產(chǎn)品：ZXMP S200｜ZXMP S320｜ZXMP S330｜ZXMP S325｜ZXMP S385｜ZXMP S390整機(jī)及各型號單板。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)及各型號單板。供應(yīng)烽火IBAS系列產(chǎn)品： 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。努力奉獻(xiàn)，您的滿意是我們一直的追求！ </p> </p> <p> <br /> 云南代理光傳輸設(shè)備烽火 E1板卡為了保證電網(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)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南代理光傳輸設(shè)備烽火 E1板卡,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845101689454/9165528.jpg"></div><p> 隨著科學(xué)技術(shù)的不斷發(fā)展,各行各業(yè)為了滿足自身內(nèi)部的需求，將會建設(shè)更多，更復(fù)雜的**網(wǎng)絡(luò)，這些網(wǎng)絡(luò)必將承擔(dān)更多的任務(wù)。 </p> <p> 對于大多數(shù)專網(wǎng)，在目前的技術(shù)條件下，則應(yīng)利用公眾網(wǎng)實(shí)現(xiàn)企業(yè)或?qū)I(yè)部門的通信需求。利用公眾網(wǎng)滿足專業(yè)部門的需求具有各種不同的方式。如租用公眾網(wǎng)的光芯或傳輸容量，配置自己的交換設(shè)備。這就免除了**困難的光纜輔設(shè)工程，比較適用于具有大規(guī)模用戶的企業(yè)。又如委托公眾網(wǎng)**為本企業(yè)或部門使用的虛擬**網(wǎng)，它所提供的功能和容量完全按照用戶的要求進(jìn)行，這就免除了全部的投資風(fēng)險和維護(hù)工作，應(yīng)用機(jī)動靈活，使用部門可以專心致力于其本行業(yè)的業(yè)務(wù)工作。 </p> <p> <br /> </p><p> <p> <p> 從技術(shù)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(wù)傳送。以SDH 系統(tǒng)為基礎(chǔ)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(wù)提供點(diǎn)（POP）上提供高質(zhì)量專線、ATM 、IP 等業(yè)務(wù)的接入、傳送和保護(hù)。 </p> <p> 隨著骨干傳輸容量不斷增大，城域傳輸網(wǎng)絡(luò)的接入能力也多樣化。但以IP為主的網(wǎng)絡(luò)業(yè)務(wù)仍然是不可預(yù)知的，這需要傳輸網(wǎng)絡(luò)具有更好的自適應(yīng)能力，而這種自適應(yīng)能力不**是網(wǎng)絡(luò)接口或網(wǎng)絡(luò)容量的適應(yīng)能力，而且要求網(wǎng)絡(luò)連接的自適應(yīng)能力?？偟膩碚f，低成本、靈活快速的完成運(yùn)營商端局到用戶端的業(yè)務(wù)接入和業(yè)務(wù)收斂是對未來城域網(wǎng)接入系統(tǒng)的主要需求。 </p> </p> <p> <br /> </p> </p> <p> <br /> 深圳市騰云科創(chuàng)信息咨詢有限公司，成立于2015年專業(yè)從事通信產(chǎn)品購銷以及施工。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南代理光傳輸設(shè)備烽火 E1板卡,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845102001954/2472236.jpg"></div><p> SDH的復(fù)用包括兩種情況： </p> <p> 1、由STM-1信號復(fù)用成STM-N信號 </p> <p> 復(fù)用的方法主要通過字節(jié)間插的同步復(fù)用方式來完成的，復(fù)用的基數(shù)是4，即4×STM-1→STM-4，4×STM-4→STM-16。在復(fù)用過程中保持幀頻不變（8000幀/秒），這就意味著高一級的STM-N信號是低一級的STM-n信號速率的4倍。 </p> <p> 在進(jìn)行字節(jié)間插復(fù)用過程中，各幀的信息凈負(fù)荷和指針字節(jié)按原值進(jìn)行字節(jié)間插復(fù)用，而STM-N的段開銷并不是由所有低階STM-N幀中的段開銷間插復(fù)用而成，而是舍棄了某些低階幀中的段開銷。 </p> <p> 2、由PDH支路信號復(fù)用成STM-N信號 </p> <p> 各種PDH支路信號復(fù)用進(jìn)STM-N幀的過程都要經(jīng)歷映射、定位、復(fù)用三個步驟。映射相當(dāng)于信號打包，定位伴隨與指針調(diào)整，復(fù)用相當(dāng)于字節(jié)間插復(fù)用。ITU-T規(guī)定了一整套完整的映射復(fù)用結(jié)構(gòu)，也就是映射復(fù)用路線，通過這些路線可將PDH的3個系列的數(shù)字信號以多種方法復(fù)用成STM-N信號。 </p> <p> 復(fù)用結(jié)構(gòu)包括了一些基本的復(fù)用單元：C－容器、VC－虛容器、TU－支路單元、TUG－支路單元組、AU－管理單元、AUG－管理單元組，這些復(fù)用單元的下標(biāo)表示與此復(fù)用單元相應(yīng)的信號級別。 </p> <p> 從一個有效負(fù)荷到STM-N的復(fù)用路線不是***的，有多條路線（也就是說有多種復(fù)用方法），8Mbit/s的PDH支路信號是無法復(fù)用成STM-N信號的。 </p> <p> <br /> 由于SDH有多種網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu)，它所組成的網(wǎng)絡(luò)非常靈活。重慶光傳輸設(shè)備烽火STM-4</p><p style="text-indent:25px">網(wǎng)絡(luò)節(jié)點(diǎn)設(shè)備（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)。云南代理光傳輸設(shè)備烽火 E1板卡</p><p> SDH的應(yīng)用 </p> <p> 由于以上所述的SDH的眾多特性，使其在廣域網(wǎng)領(lǐng)域和**網(wǎng)領(lǐng)域得到了巨大的發(fā)展。中國移動、電信、聯(lián)通、廣電等電信運(yùn)營商都已經(jīng)大規(guī)模建設(shè)了基于SDH的骨干光傳輸網(wǎng)絡(luò)。利用大容量的SDH環(huán)路承載IP業(yè)務(wù)、ATM業(yè)務(wù)或直接以租用電路的方式出租給企、事業(yè)單位。而一些大型的**網(wǎng)絡(luò)也采用了SDH技術(shù)，架設(shè)系統(tǒng)內(nèi)部的SDH光環(huán)路，以承載各種業(yè)務(wù)。比如電力系統(tǒng)，就利用SDH環(huán)路承載內(nèi)部的數(shù)據(jù)、遠(yuǎn)控、視頻、語音等業(yè)務(wù)。 </p> <p> 而對于組網(wǎng)更加迫切、而又沒有可能架設(shè)**SDH環(huán)路的單位，很多都采用了租用電信運(yùn)營商電路的方式。由于SDH基于物理層的特點(diǎn)，單位可在租用電路上承載各種業(yè)務(wù)而不受傳輸?shù)南拗?。承載方式有很多種，可以是利用基于TDM技術(shù)的綜合復(fù)用設(shè)備實(shí)現(xiàn)多業(yè)務(wù)的復(fù)用，也可以利用基于IP的設(shè)備實(shí)現(xiàn)多業(yè)務(wù)的分組交換。SDH技術(shù)可真正實(shí)現(xiàn)租用電路的帶寬保證，安全性方面也優(yōu)于VPN等方式。在****和對安全性非常注重的企業(yè)，SDH租用線路得到了***的應(yīng)用。一般來說，SDH可提供E1、E3、STM-1或STM-4等接口，完全可以滿足各種帶寬要求。同時在價格方面，也已經(jīng)為大部分單位所接受。云南代理光傳輸設(shè)備烽火 E1板卡</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)易型的公司。公司業(yè)務(wù)分為SDH光傳輸設(shè)備，光端機(jī)，PCM接入設(shè)備，PTN OTN光傳輸設(shè)備等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司從事通信產(chǎn)品多年，有著創(chuàng)新的設(shè)計、強(qiáng)大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1277162.html</p></div></div></div></div></div><div id="xlnpm3r" class="page-right twoColRt"><div id="mgiprlc" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="apgn8ah" 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="sczbiu7" class="recomPic likePro"><a href="http://m.cdcfah.com/cp/846569.html"><div><img 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