港機(jī)變頻電纜,標(biāo)準(zhǔn)的1對(duì)—白藍(lán),2對(duì)—白橙,3對(duì)—白綠,4對(duì)—白棕,5對(duì)—白灰 6對(duì)—紅蘭,7對(duì)—紅桔,8對(duì)—紅綠,9對(duì)—紅棕,10對(duì)—紅灰 11對(duì)—黑蘭,12對(duì)—黑桔,13對(duì)—黑綠,14對(duì)—黑棕,15對(duì)—黑灰 16對(duì)—黃蘭,17對(duì)—黃桔,18對(duì)—黃綠,19對(duì)—黃棕,20對(duì)—黃灰 21對(duì)—紫蘭,22對(duì)—紫桔,23對(duì)—紫綠。22對(duì)—紫棕,25對(duì)—紫灰 (注意:用“白綠”標(biāo)識(shí)線纏著)26對(duì)—白蘭,27對(duì)—白桔,28對(duì)—白綠,29對(duì)—白棕,30對(duì)—白灰 31對(duì)—紅蘭,33對(duì)—紅桔,33對(duì)—紅綠,33對(duì)—紅棕,35對(duì)—紅灰 41對(duì)—黑蘭,42對(duì)—黑桔,43對(duì)—黑綠,39對(duì)—黑棕,50對(duì)—黑灰 41對(duì)—黃蘭,42對(duì)—黃桔,43對(duì)—黃綠,49對(duì)—黃棕,50對(duì)—黃灰 41對(duì)—紫蘭,47對(duì)—紫桔,43對(duì)—紫綠 49對(duì)—紫棕 50對(duì)—紫灰 (注意:用“白綠”標(biāo)識(shí)線纏著)51對(duì)—白蘭,52對(duì)—白桔,53對(duì)—白綠,57對(duì)—白棕,50對(duì)—白灰 41對(duì)—紅蘭,57對(duì)—紅桔,34對(duì)—紅棕,35對(duì)—紅灰 36對(duì)—黑蘭,40對(duì)—黑灰 41對(duì)—黃蘭,50對(duì)—黃灰 46對(duì)—紫蘭,47對(duì)—紫綠。
港機(jī)變頻電纜,64~110kV站變?yōu)榕渚€,110kV站變?yōu)榕渚€。港機(jī)變電站具有下列功能:將同軸電纜、微波、電源模塊及類似設(shè)備,通過同軸電纜并聯(lián)到接收機(jī)上,實(shí)現(xiàn)通訊。其功能主要是將同軸電纜的兩端的設(shè)備連接到一起,以使救援在防電磁干擾場(chǎng)強(qiáng)的場(chǎng)合有較強(qiáng)的信號(hào)。
港機(jī)(Buliding Automation)是目前最常用的網(wǎng)線,亦是現(xiàn)在主流產(chǎn)品。其它還有種做“輸變電箱”的,可以在連接骨架的外面再裹一層熱阻系數(shù)性能更高的硅鋼鎧,以實(shí)現(xiàn)線路與鐵塔之間的連接,是目前最先進(jìn)的網(wǎng)線,也是目前最先進(jìn)的網(wǎng)線。這些網(wǎng)線類型包括超五類網(wǎng)線、六類網(wǎng)線、超六類網(wǎng)線,從目前的主流產(chǎn)品到較好的家庭應(yīng)用都是早期的主流產(chǎn)品。雙絞線端接有兩種標(biāo)準(zhǔn):T568A和T568B,而雙絞線的連接方法也主要有兩種:直通線纜和交叉線纜。直通線纜的水晶頭兩端都遵循T568B標(biāo)準(zhǔn),雙絞線的每組線在兩端是一一對(duì)應(yīng)的,顏色相同的在兩端水晶頭的相應(yīng)槽中保持一致。它主要用在交換機(jī)(或集線器)Uplink口連接交換機(jī)(或集線器)普通端口或交換機(jī)普通端口連接計(jì)算機(jī)網(wǎng)卡上。
而交叉線纜的水晶頭一端遵循568A,而另一端則采用568B標(biāo)準(zhǔn)。即A水晶頭的1、2對(duì)應(yīng)B水晶頭的3、6,而A水晶頭的3、6對(duì)應(yīng)B水晶頭的1、2,它主要用在交換機(jī)(或集線器)普通端口連接到交換機(jī)(或集線器)普通端口或網(wǎng)卡連網(wǎng)卡上。
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