接到環(huán)中它的下一個(gè)模塊的接收器上,從而不斷形成-一個(gè)通信環(huán)。下圖說明了由4個(gè)UR系列保護(hù)裝置組成的環(huán),這些保護(hù)裝置的連接是:UR1-Tx至UR2-Rx,UR2-Tx至UR3-Rx,UR3-Tx至UR4-Rx,和UR4-Tx至UR1-Rx。一個(gè)單環(huán)上最多可連接16個(gè)UR系列保護(hù)裝置。e)測(cè)試模塊(開關(guān)85和S6)
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