在網(wǎng)絡(luò)發(fā)達(dá)的今天，交換機(jī)被許多需要使用網(wǎng)絡(luò)的朋友使用，可以實(shí)現(xiàn)一個(gè)網(wǎng)絡(luò)多臺(tái)電腦公用。但是什么是工業(yè)以太網(wǎng)交換機(jī)，很慣性的思維就是工業(yè)用的交換機(jī)，但是具體工業(yè)以太網(wǎng)交換機(jī)性能特點(diǎn)有什么呢大家就可能會(huì)疑惑了。工業(yè)以太網(wǎng)交換機(jī)主要是應(yīng)用于復(fù)雜的工業(yè)環(huán)境中的實(shí)時(shí)以太網(wǎng)數(shù)據(jù)傳輸，利用了交換機(jī)技術(shù)以及以太網(wǎng)傳輸?shù)募夹g(shù)，特別是以太網(wǎng)傳輸?shù)乃俣取Ｏ旅嫘【幘蛠?lái)和大家分享一下工業(yè)以太網(wǎng)交換機(jī)性能特點(diǎn)，以及它于普通交換機(jī)的區(qū)別。

　　首先是工業(yè)以太網(wǎng)交換機(jī)的簡(jiǎn)介，由于它是用于復(fù)雜而且苛刻的工業(yè)環(huán)境中(高溫、實(shí)時(shí)性要求高、傳輸速率要求很快，相應(yīng)需要快速等)，在以太網(wǎng)在設(shè)計(jì)時(shí)，普通的交換機(jī)都是采用載波偵聽(tīng)多路復(fù)用沖突檢測(cè)(CSMA/CD機(jī)制)，工業(yè)應(yīng)用時(shí)可靠性低;而工業(yè)以太網(wǎng)交換機(jī)則是采用存儲(chǔ)轉(zhuǎn)換交換方式，利用以太網(wǎng)的通信速度，內(nèi)置智能報(bào)警設(shè)計(jì)監(jiān)控網(wǎng)絡(luò)運(yùn)行狀況，在惡劣危險(xiǎn)的工業(yè)環(huán)境也保證以太網(wǎng)可靠穩(wěn)定的運(yùn)行。

　　我們?cè)谡f(shuō)一下工業(yè)以太網(wǎng)交換機(jī)的特點(diǎn)，高性能以太網(wǎng)交換機(jī)技術(shù)來(lái)保證通信速度，采用的是IEEE802.3/802.3d/802.3u/802.3x接口標(biāo)準(zhǔn)和存儲(chǔ)轉(zhuǎn)換交換方式的輸出方式，具有抑制廣播風(fēng)暴功能、端口鏈路告警功能;電源發(fā)生故障時(shí)故障信息用繼電器輸出進(jìn)行報(bào)警，冗余24伏直流電源輸入，工作溫度在-40度～75度工作溫度，高強(qiáng)度外殼，防護(hù)等級(jí)達(dá)到IP30，工業(yè)級(jí)標(biāo)準(zhǔn)設(shè)計(jì)，10Base-T/100Base-TX自適應(yīng)的以太網(wǎng)接口，MDI/MDI-X，全雙工/半雙工自適應(yīng)方式;安裝方便，傳輸距離較大(相對(duì)而言)，為了不受磁電的影響，具有電磁隔離和電磁保護(hù)的功能，它的這些特性決定工業(yè)以太網(wǎng)交換機(jī)可以用于工業(yè)控制自動(dòng)化，道路交通控制自動(dòng)化，樓宇自動(dòng)控制系統(tǒng)，礦井自動(dòng)控制系統(tǒng)，油田控制自動(dòng)化，水電站控制自動(dòng)化，電力系統(tǒng)控制自動(dòng)化，機(jī)房監(jiān)控系統(tǒng)等工業(yè)的應(yīng)用。

　　工業(yè)以太網(wǎng)交換機(jī)

　　工業(yè)以太網(wǎng)交換機(jī)與普通交換機(jī)的區(qū)別，主要體現(xiàn)在功能和性能上。

　　工業(yè)以太網(wǎng)交換機(jī)在工業(yè)級(jí)設(shè)計(jì)一般在設(shè)計(jì)上滿足：工業(yè)寬溫設(shè)計(jì)，4級(jí)電磁兼容設(shè)計(jì)，冗余交直流電源輸入，另外PCB板一般做“三防”處理。工業(yè)現(xiàn)場(chǎng)的環(huán)境比普通環(huán)境都要惡劣，至少在震動(dòng)，濕氣，溫度上都要比普通環(huán)境惡劣，普通交換機(jī)在設(shè)計(jì)上沒(méi)有抵御在工業(yè)環(huán)境中出現(xiàn)的各種情況的能力，普通交換機(jī)不能長(zhǎng)時(shí)間工作在這種惡劣環(huán)境下，經(jīng)常容易出現(xiàn)故障，更使維護(hù)成本上升，一般不建議在工業(yè)環(huán)境中使用商業(yè)交換機(jī)，為了能使交換機(jī)在這種惡劣環(huán)境中使用，故生產(chǎn)出能適應(yīng)這種環(huán)境的交換機(jī)，工業(yè)級(jí)別的交換機(jī)的可靠性有電源故障，端口中斷，可由繼電器輸出報(bào)警，冗余雙直流電源輸入，主動(dòng)式電路保護(hù)，過(guò)壓、欠壓自動(dòng)斷路保護(hù)。

　　(1)功能：工業(yè)以太網(wǎng)交換機(jī)與工業(yè)網(wǎng)絡(luò)通訊更加接近，比如各種現(xiàn)場(chǎng)總線的互通互聯(lián)、設(shè)備的冗余以及設(shè)備要求的實(shí)時(shí)性。

　　(2)性能：主要體現(xiàn)在適用外界環(huán)境的參數(shù)不一樣，工業(yè)環(huán)境除了特別惡劣的環(huán)境之外，還要求有EMI電磁兼容、溫度、濕度、防塵等，特別是溫度對(duì)工業(yè)網(wǎng)絡(luò)設(shè)備的影響是zui廣泛的。

　　工業(yè)以太網(wǎng)交換機(jī)使用的注意事項(xiàng)：

　　(1)不要將設(shè)備放置在接近水源或者潮濕的地方;

　　(2)電源電纜上不要放任何的東西，將其放在碰不到的地方;

　　(3)為了避免火災(zāi)，不要將電纜打結(jié)或者包住;

　　(4)電源接頭以及其他設(shè)備連接件需要連接牢固，并經(jīng)常檢查線路的牢固性;

　　(5)保持光纖插座和插頭的清潔，設(shè)備工作時(shí)，不要直視光纖的斷面;

　　(6)注意設(shè)備清潔，必要時(shí)可以用棉布擦拭;

　　(7)設(shè)備出現(xiàn)故障時(shí)，為了安全起見(jiàn)不要自己維修。

◆ 企業(yè)名稱：廈門興潤(rùn)星貿(mào)易有限公司

◆ 企業(yè)性質(zhì)： 有限責(zé)任公司

◆ 主營(yíng)業(yè)務(wù)：DCS,PLC

◆ 經(jīng)營(yíng)模式： 貿(mào)易

◆ 貿(mào)易地區(qū)： 全國(guó)

◆ :陽(yáng)

◆ 商務(wù)：

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Mindman Pneumatic Solenoid Valve MVSC-460-4E1
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Minertia Motor Servo Motor UGRMEM-01SSW11 
Mini Dog Cable Winder Cord Wrapper 4 MP3 MP4 Headphone
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