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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>湖南銷售光傳輸設(shè)備烽火STM-1,烽火</p><p><span>***更新：</span>2020-08-15 06:07:03</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="3plpbnh" 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(hào)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="dddj3hl" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="jtnvzjl" class="box"><p><p> 電源系統(tǒng)SDH設(shè)備采用一48伏直流電源，湖南銷售光傳輸設(shè)備烽火STM-1，湖南銷售光傳輸設(shè)備烽火STM-1，工作電壓應(yīng)滿足：輸入電壓范圍是-40V至-57V；電話衡量雜音電壓<2mV；峰峰值雜音電壓(0．300Hz)_<400mV。 </p> <p> 根據(jù)公式：電流=功率／電壓，湖南銷售光傳輸設(shè)備烽火STM-1。各設(shè)備正常工作時(shí)的比較大電流等于滿配置功耗除以工作電壓。比較大電流再加上適當(dāng)富余量取整可得所需熔絲大小。 </p> <p> 時(shí)鐘同步系統(tǒng) </p> <p> SDH網(wǎng)元時(shí)鐘源的種類 </p> <p> (1)外部時(shí)鐘源——由SETPI功能塊提供輸入接口； </p> <p> (2)線路時(shí)鐘源一由SPI功能塊從STM．N線路信號(hào)中提??； </p> <p> (3)支路時(shí)鐘源——由PPI功能塊從PDH支路信號(hào)中提取，不過(guò)該時(shí)鐘一般不用，因?yàn)镾DH／PDH網(wǎng)邊界處的指針調(diào)整會(huì)影響時(shí)鐘質(zhì)量； </p> <p> (4)設(shè)備內(nèi)置時(shí)鐘源由SETS功能塊提供。 </p> <p> <br /> 段，相當(dāng)于一條大的傳輸通道。湖南銷售光傳輸設(shè)備烽火STM-1</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南銷售光傳輸設(shè)備烽火STM-1,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845105000000/3722756.jpg"></div><p> SDH的概念 </p> <p> SDH[1]（Synchronous Digital Hierarchy，同步數(shù)字系列）光端機(jī)容量較大，一般是16E1到4032E1。 SDH是一種將復(fù)接、線路傳輸及交換功能融為一體、并由統(tǒng)一網(wǎng)管系統(tǒng)操作的綜合信息傳送網(wǎng)絡(luò)，是美國(guó)貝爾通信技術(shù)研究所提出來(lái)的同步光網(wǎng)絡(luò)（SONET）。國(guó)際電話電報(bào)咨詢**會(huì)（CCITT）（現(xiàn)ITU-T）于1988年接受了SONET 概念并重新命名為SDH，使其成為不僅適用于光纖也適用于微波和衛(wèi)星傳輸?shù)耐ㄓ眉夹g(shù)體制。它可實(shí)現(xiàn)網(wǎng)絡(luò)有效管理、實(shí)時(shí)業(yè)務(wù)監(jiān)控、動(dòng)態(tài)網(wǎng)絡(luò)維護(hù)、不同廠商設(shè)備間的互通等多項(xiàng)功能，能**提高網(wǎng)絡(luò)資源利用率、降低管理及維護(hù)費(fèi)用、實(shí)現(xiàn)靈活可靠和***的網(wǎng)絡(luò)運(yùn)行與維護(hù)，因此是當(dāng)今世界信息領(lǐng)域在傳輸技術(shù)方面的發(fā)展和應(yīng)用的熱點(diǎn)，受到人們的***重視。 </p> <p> <br /> 湖南銷售光傳輸設(shè)備烽火STM-1標(biāo)準(zhǔn)的開放型光接口可以在基本光纜段上實(shí)現(xiàn)橫向兼容，降低了聯(lián)網(wǎng)成本。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南銷售光傳輸設(shè)備烽火STM-1,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244847724550782/6753357.jpg"></div><p> 深圳騰云科創(chuàng)信息咨詢有限公司主營(yíng)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(hào)單板。華為Metro系列產(chǎn)品：Metro1000｜Metro2050｜Metro3000｜Optix2500+｜Metro5000整機(jī)及各型號(hào)單板。華為OSN系列產(chǎn)品：OSN1500B｜OSN2000｜OSN2500｜OSN3500｜OSN7500整機(jī)及各型號(hào)單板。烽火IBAS系列產(chǎn)品： IBAS780A｜IBAS780B， PCM綜合接入設(shè)備介紹：FA16接入設(shè)備｜BX10接入設(shè)備 </p> <p> <br /> </p> 以太網(wǎng)業(yè)務(wù)的接入和傳送應(yīng)用,支持端口捆綁( IEEE802. 3ad) 和生成樹算法( IEEE802.1D) , 支持VLAN ( IEEE802. 1Q ) 和QoS ( IEEE802.1p ) , 可以直接提供10Mb/100Mb自適應(yīng)以太網(wǎng)接口, 通過(guò)內(nèi)置2 層、3 層以太網(wǎng)交換機(jī)實(shí)現(xiàn)統(tǒng)計(jì)復(fù)用, 并且支持VC212 虛級(jí)聯(lián), 帶寬從1～ 48 個(gè)2M b平滑設(shè)置。<p> SDH的發(fā)展趨勢(shì) </p> <p> SDH作為新一代理想的傳輸體系，具有路由自動(dòng)選擇能力，上下電路方便，維護(hù)、控制、管理功能強(qiáng)，標(biāo)準(zhǔn)統(tǒng)一，便于傳輸更高速率的業(yè)務(wù)等優(yōu)點(diǎn)，能很好地適應(yīng)通信網(wǎng)飛速發(fā)展的需要。迄今，SDH得到了空前的應(yīng)用與發(fā)展。在標(biāo)準(zhǔn)化方面，已建立和即將建立的一系列建議已基本上覆蓋了SDH的方方面面。在干線網(wǎng)和長(zhǎng)途網(wǎng)、中繼網(wǎng)、接入網(wǎng)中它開始廣泛應(yīng)用。且在光纖通信、微波通信、衛(wèi)星通信中也積極地開展研究與應(yīng)用。 </p> <p> <p> 近些年，點(diǎn)播電視、多媒體業(yè)務(wù)和其他寬帶業(yè)務(wù)如雨后春筍般紛紛出現(xiàn)，為SDH應(yīng)用在接入網(wǎng)中提供了廣闊的空間。SDH技術(shù)應(yīng)用于接入網(wǎng)的好處是：1）對(duì)于要求高可靠、高質(zhì)量業(yè)務(wù)的大型企事業(yè)用戶，SDH可以提供較為理想的網(wǎng)絡(luò)性能和業(yè)務(wù)可靠性。2）可以將網(wǎng)管范圍擴(kuò)展至用戶端，簡(jiǎn)化維護(hù)工作。3）利用SDH固有靈活性，可使網(wǎng)絡(luò)運(yùn)營(yíng)者更快、更有效地提供用戶所需的長(zhǎng)期和短期業(yè)務(wù)需求。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> 分/插復(fù)用器用于SDH傳輸網(wǎng)絡(luò)的轉(zhuǎn)接站點(diǎn)處。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南銷售光傳輸設(shè)備烽火STM-1,烽火" src="https://tyunfile.71360.com/UploadFile/sztykc/637244845102001954/2472236.jpg"></div><p> 基本的網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu) </p> <p> SDH網(wǎng)是由SDH網(wǎng)元設(shè)備通過(guò)光纜互連而成的，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)。網(wǎng)絡(luò)的有效性、可靠性和經(jīng)濟(jì)性在很大程度上與其拓?fù)浣Y(jié)構(gòu)有關(guān)。 </p> <p> 網(wǎng)絡(luò)拓?fù)涞幕窘Y(jié)構(gòu)有鏈形、星形、樹形、環(huán)形和網(wǎng)孔形。 </p> <p> 鏈形網(wǎng) </p> <p> 鏈形網(wǎng)絡(luò)拓?fù)涫菍⒕W(wǎng)中的所有節(jié)點(diǎn)一一串聯(lián)，而首尾兩端開放。這種拓?fù)涞奶攸c(diǎn)是較經(jīng)濟(jì)，在SDH網(wǎng)的早期用得較多，主要用于專網(wǎng)如鐵路網(wǎng)中。 </p> <p> 星形網(wǎng) </p> <p> 星形網(wǎng)絡(luò)拓?fù)涫菍⒕W(wǎng)中一網(wǎng)元做為中心節(jié)點(diǎn)設(shè)備與其他各網(wǎng)元節(jié)點(diǎn)相連，其他各網(wǎng)元節(jié)點(diǎn)之間互不相連，網(wǎng)元節(jié)點(diǎn)的業(yè)務(wù)都要經(jīng)過(guò)這個(gè)特殊節(jié)點(diǎn)轉(zhuǎn)接。 </p> <p> <br /> </p> <p> <br /> 電力通信要求確保電能的生產(chǎn)、輸送、分配、消費(fèi)在瞬間是同時(shí)完成的。湖南銷售光傳輸設(shè)備烽火STM-1</p><p style="text-indent:25px">真正的REG只需處理STM-N幀中的RSOH，且不需要交叉連接功能（w—e直通即可）。湖南銷售光傳輸設(shè)備烽火STM-1</p><p> <p> <p> 從技術(shù)上來(lái)看，接入層的相對(duì)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(jià)地在一個(gè)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)能力不僅僅是網(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?lái)說(shuō)，低成本、靈活快速的完成運(yùn)營(yíng)商端局到用戶端的業(yè)務(wù)接入和業(yè)務(wù)收斂是對(duì)未來(lái)城域網(wǎng)接入系統(tǒng)的主要需求。 </p> </p> <p> <br /> </p> </p> <p> <br /> 湖南銷售光傳輸設(shè)備烽火STM-1</p><p style="text-indent:25px">深圳市騰云科創(chuàng)信息咨詢有限公司創(chuàng)立于2015-10-29，總部位于廣東省深圳市，是一家電力設(shè)備、電子元器件、電子產(chǎn)品、建筑材料、通信設(shè)備(中興通訊及華為技術(shù)各系列產(chǎn)品板件及整套設(shè)備的銷售與安裝，設(shè)備維護(hù)及板件返修，以及各設(shè)備可配置的單板，用戶電纜，中繼電纜等)、辦公設(shè)備、五金交電、化工原料（不含危險(xiǎn)及監(jiān)控化學(xué)品）的銷售；經(jīng)濟(jì)信息咨詢；經(jīng)營(yíng)進(jìn)出口業(yè)務(wù)。的公司。騰云科創(chuàng)作為電力設(shè)備、電子元器件、電子產(chǎn)品、建筑材料、通信設(shè)備(中興通訊及華為技術(shù)各系列產(chǎn)品板件及整套設(shè)備的銷售與安裝，設(shè)備維護(hù)及板件返修，以及各設(shè)備可配置的單板，用戶電纜，中繼電纜等)、辦公設(shè)備、五金交電、化工原料（不含危險(xiǎn)及監(jiān)控化學(xué)品）的銷售；經(jīng)濟(jì)信息咨詢；經(jīng)營(yíng)進(jìn)出口業(yè)務(wù)。的品牌企業(yè)，為客戶提供優(yōu)質(zhì)的[ "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" ]。公司終堅(jiān)持自主研發(fā)創(chuàng)新發(fā)展理念，不斷優(yōu)化的技術(shù)、產(chǎn)品為客戶帶來(lái)效益，目前年?duì)I業(yè)額達(dá)到50-100萬(wàn)元。騰云科創(chuàng)創(chuàng)始人卓龍飛，始終關(guān)注客戶，以優(yōu)化創(chuàng)新的科技，竭誠(chéng)為客戶提供最好的服務(wù)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/920865.html</p></div></div></div></div></div><div id="l3dzzvp" class="page-right twoColRt"><div id="ln5zz7f" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pjft7df" 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(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="bdz3l5v" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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