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殤心的感覺(jué)
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樓主  發(fā)表于: 2017-11-26 09:56
不管是什么牌子，或者有沒(méi)有牌子，有io能斷電保持，就可以了，網(wǎng)口必須要，價(jià)格1k內，老哥們看看推薦下
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1樓  發(fā)表于: 2017-11-26 10:58
什么叫IO掉電保持？
那是內部繼電器或寄存器掉電保持
網(wǎng)口的？網(wǎng)口接口的很多，網(wǎng)口接口但內部是485的也有
哈哈
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