【摘要】 韦根接口已经成为门禁控制器与读卡器之间的标准接口,采用这一接口方式时门禁控制器与读卡器之间的距离一般不能超过百米,对门禁系统的实际应用带来很多不便。本文介绍的这种门禁远程控制扩展器能够实现读卡器和各种状态输入输出信号超过1公里的远距离传送,可以直接嵌入到控制器和现场控制单元之间而无须对原有系统作任何修改,具有很高的实用价值。更多还原

【Abstract】 Wiegand interface is the standard interface for card code transmission in the area of access control. When using this kind of interface the distance between controller and card reader can not over 100 meters, it takes inconvenience in application of access control system. The controller extension modules introduced here have the capability to extend the distance between controller and control field to more than 1000 meters; it can be embedded in all kinds of access controllers which have Wiegand interface without any modification to these systems.更多还原