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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>中興390價(jià)格便宜,中興</p><p><span>***更新：</span>2021-02-07 03:09:55</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gacjlct" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘭州山河通訊科技服務(wù)有限公司</a></p><p><span>聯(lián)系人：</span>李總</p><p><span>郵箱: </span>41879341@qq.com</p><p><span>電話: </span>18993078721</p><p><span>傳真: </span>1899_</p><p><span>網(wǎng)址: </span>http://lzshtx.shop.88360.com</p><p><span>手機(jī): </span>1899-3078721</p><p><span>地址: </span>晏家坪北路9號(hào)-19</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="32iphea" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ds3icov" class="box"><p><p style="text-indent:25px"> 光端機(jī)選購(gòu)注意事項(xiàng)：從發(fā)送到光纖上的信號(hào)來分，光端機(jī)可分為依據(jù)模仿技能的模仿光端機(jī)和依據(jù)數(shù)字技能的數(shù)字光端機(jī)，中興390價(jià)格便宜。模仿光端機(jī)其作業(yè)原理不外乎調(diào)制解調(diào)、濾波和信號(hào)混合等。不論是LED仍是LD，其光電調(diào)制特性都不是線性的，在信號(hào)傳輸進(jìn)程中不免出現(xiàn)失真、攪擾等模仿處理中不可避免的問題，中興390價(jià)格便宜，中興390價(jià)格便宜，且在大容量傳輸和多事務(wù)混合傳輸方面有難以克服的技能難點(diǎn)。數(shù)字光端機(jī)的狀況就不同了，光纖中只要“有光”和“無光”兩種狀態(tài)，因而對(duì)光源的線性要求不高或幾乎沒有要求，從而避免了信號(hào)在處理進(jìn)程中的丟掉。別的，數(shù)字光端機(jī)比較簡(jiǎn)略完結(jié)多通道、多種信號(hào)的混合傳輸。中興SDH設(shè)備價(jià)格便宜。中興390價(jià)格便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中興390價(jià)格便宜,中興" src="https://tyunfile.71360.com/UploadFile/lzshtx/637306808367734375/1769497.png"></div><p style="text-indent:25px">室外運(yùn)用ZXMPM721OD61設(shè)備為室外型盒式一體化設(shè)備，用于承載移動(dòng)Fronthaul網(wǎng)絡(luò)?！?0G帶寬業(yè)界**大，支撐12路事務(wù)接入；·支撐星型、鏈型、環(huán)型組網(wǎng)，支撐單纖雙向和雙纖雙向的傳輸辦法；·滿意IP65規(guī)范要求，適用于-40℃~55℃的環(huán)境溫度，防雷才能到達(dá)C級(jí)；·裝置辦法靈敏，支撐抱桿和壁掛裝置中興ZXMPM800ZXMPM800城域密布波分設(shè)備（以下均簡(jiǎn)稱ZXMPM800）是中興通訊股份有限公司開發(fā)的DWDM產(chǎn)品，適用于大容量的光傳輸，能充沛滿意不同層次用戶的組網(wǎng)和辦理要求。中興s330供應(yīng)中興光端機(jī)設(shè)備通信設(shè)備。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中興390價(jià)格便宜,中興" src="https://tyunfile.71360.com/UploadFile/lzshtx/637306801613691406/8669800.png"></div><p style="text-indent:25px"> 2）支撐視頻無損再生中繼，因而能夠選用多級(jí)傳輸辦法；3）受環(huán)境攪擾較小，傳輸質(zhì)量高；4）支撐的信號(hào)容量可達(dá)16路，乃至更多（32路、64路、128路）。特性●視頻選用8位數(shù)字編碼●彩色圖畫信號(hào)●高質(zhì)量實(shí)時(shí)傳輸●10Hz-24kHz聲響頻寬●完全兼容NTSC,PAL,SECAM制式圖畫●可傳輸RS232,RS485,RS422規(guī)范數(shù)據(jù)●可一起傳輸以太網(wǎng)信號(hào)●指示燈能協(xié)助對(duì)體系毛病做出快速診斷●在各種野外條件下的高牢靠性●支撐網(wǎng)管功用視頻特性視頻接口數(shù)：1-32路視頻視頻接口辦法：BNC信號(hào)制式：PAL/NTSC/SECAM標(biāo)稱輸入輸出電平：1Vp-p視頻輸入/輸出阻抗:75Ω不平衡)視頻輸入/輸出電壓:1VP-P(峰-峰值)視頻帶寬：8MHz視頻采樣：15MHz高速采樣微分增益：（10%-90%APL）DG<1%(典型值)微分相位：（10%-90%APL）DP<(典型值)視頻信噪比(加權(quán))：S/N≥70dB（**大光學(xué)鏈路損耗時(shí)）色亮度延時(shí)差10ns（典型值）色亮度增益差：±10%（典型值）注：支撐正向、反向、雙向視頻。</p><p style="text-indent:25px"> 由于都只轉(zhuǎn)化為數(shù)字信號(hào)，憑借TDM（時(shí)分復(fù)用）技能就能很簡(jiǎn)略地完結(jié)多通道多種信號(hào)的傳輸。已有光端機(jī)出產(chǎn)廠商能夠做到在一個(gè)波長(zhǎng)通道上一次傳輸10路非緊縮實(shí)時(shí)視頻圖畫。光纖網(wǎng)絡(luò)拓?fù)滢k法，光纖網(wǎng)絡(luò)拓?fù)滢k法決議了視頻光端機(jī)類型。依據(jù)光纖傳輸網(wǎng)絡(luò)拓?fù)湫褪匠商暨x傳統(tǒng)的點(diǎn)對(duì)點(diǎn)傳輸光端機(jī)外，還有節(jié)點(diǎn)式和環(huán)網(wǎng)式光端機(jī)可供挑選。節(jié)點(diǎn)式視頻光端機(jī)將前端各節(jié)點(diǎn)組成鏈網(wǎng)或樹型網(wǎng)絡(luò)，節(jié)點(diǎn)機(jī)在每個(gè)節(jié)點(diǎn)首先將信號(hào)接納下來，轉(zhuǎn)化成電信號(hào)，再和本地節(jié)點(diǎn)的信號(hào)交流復(fù)用，光電轉(zhuǎn)化后選用WDM技能復(fù)用到一條光纖上傳輸。中興S390設(shè)備售后電話。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="中興390價(jià)格便宜,中興" src="https://tyunfile.71360.com/UploadFile/lzshtx/637306808403095703/1190255.png"></div><p style="text-indent:25px">HUB型ROADM節(jié)點(diǎn)完結(jié)的功用如下：l完結(jié)各個(gè)方向的波長(zhǎng)信號(hào)的波長(zhǎng)級(jí)調(diào)度。l具有本地上路和下路功用。l支撐十個(gè)光方向波長(zhǎng)調(diào)度。l靈敏裝備為波長(zhǎng)相關(guān)、方向相關(guān)到波長(zhǎng)無關(guān)、方向無關(guān)的不同組合。ZXMPM820能夠供給以太網(wǎng)二層交流和客戶事務(wù)功用檢測(cè)功用。此功用首要是經(jīng)過A型會(huì)聚交流板（ASMA板）完結(jié)的，依據(jù)VLAN的二層交流功用，可完結(jié)以太網(wǎng)幀的MAC地址辨認(rèn)，多個(gè)GE/10GE到10GE的帶寬會(huì)聚/解會(huì)聚功用，事務(wù)的QoS辦理，VLAN等功用。電穿插功用ZXMPM820供給依據(jù)OTN的分布式穿插和集中式穿插功用，可完結(jié)GE/。l集中式穿插包含群路單元。中興光端機(jī)設(shè)備傳輸單板。中興S390設(shè)備維護(hù)</p><p style="text-indent:25px">中興S390設(shè)備銷售電話。中興390價(jià)格便宜</p><p style="text-indent:25px">由于選用了圖象緊縮技能，它能**下降信號(hào)傳輸帶寬。全數(shù)字非緊縮視頻光端機(jī)選用全數(shù)字無緊縮技能，因而能支撐任何**辨率運(yùn)動(dòng)、靜止圖畫無失真?zhèn)鬏?；克服了常?guī)的模仿調(diào)頻、調(diào)相、調(diào)幅光端機(jī)多路信號(hào)一起傳輸時(shí)交調(diào)攪擾嚴(yán)峻、簡(jiǎn)略受環(huán)境攪擾影響、傳輸質(zhì)量低劣、長(zhǎng)期作業(yè)安穩(wěn)性不高級(jí)缺點(diǎn)。而且支撐音頻雙向、數(shù)據(jù)雙向、開關(guān)量雙向、以太網(wǎng)、電話等信號(hào)的并行傳輸，現(xiàn)場(chǎng)接線方便，即插即用。與傳統(tǒng)的模仿光端機(jī)相比，數(shù)字光端機(jī)具有顯著的優(yōu)勢(shì)：1）傳輸間隔較長(zhǎng)：可達(dá)80Km，乃至更遠(yuǎn)（120Km）。中興390價(jià)格便宜</p><p style="text-indent:25px">蘭州山河通訊科技服務(wù)有限公司致力于通信產(chǎn)品，以科技創(chuàng)新實(shí)現(xiàn)高品質(zhì)管理的追求。蘭州山河通訊作為電子信息技術(shù)及電子產(chǎn)品的技術(shù)開發(fā)、轉(zhuǎn)讓、咨詢服務(wù)；弱電、監(jiān)控的銷售和施工；電子計(jì)算機(jī)、通訊設(shè)備（不含衛(wèi)星地面接收設(shè)施）的安裝調(diào)試；電子產(chǎn)品、通訊設(shè)備（以上兩項(xiàng)不含衛(wèi)星地面接收設(shè)施）、機(jī)械設(shè)備、電氣設(shè)備、五金交電、辦公設(shè)備、建筑材料、儀器儀表、電力設(shè)備及器材的批發(fā)零售；電力工程技術(shù)及施工（以上各項(xiàng)依法須經(jīng)批準(zhǔn)的項(xiàng)目，經(jīng)相關(guān)部門批準(zhǔn)后方可開展經(jīng)營(yíng)活動(dòng)）。的企業(yè)之一，為客戶提供良好的華為通訊設(shè)備，中心通訊設(shè)備。蘭州山河通訊始終以本分踏實(shí)的精神和必勝的信念，影響并帶動(dòng)團(tuán)隊(duì)取得成功。蘭州山河通訊始終關(guān)注通信產(chǎn)品市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3199511.html</p></div></div></div></div></div><div id="y2dfh2a" class="page-right twoColRt"><div id="847jlkf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2t879m3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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