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标题:
带考勤门禁
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作者:
chinesecao
时间:
2007-5-23 22:05
标题:
带考勤门禁
请问很简单的一个系统，就一扇门是带考勤的门禁，在前端读卡器这儿要接几根线啊，电源线、信号线都用网线代替可以吗？
作者:
canty
时间:
2007-5-24 00:10
一般读卡器和控制器接4根线（＋12V,GND,D0,D1），距离不是很远的话，用网线足够了。
作者:
欧品科技
时间:
2007-5-24 12:42
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作者:
ship
时间:
2007-5-24 15:29
<p>够了。</p>
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