Take smart card as information carrier, Semtong intelligent access control system takes use of PC management system, distinguishes the information of cards, and sends control signal to magnetic door lock to control door opening. At the same time, it can record and store information of card reading time, card numbers and etc. into corresponding database, so as to make it convenient for administrator to enquiry at any time, and strengthen the safety management for doors.Semtong access controllers include single door double-directional controller, two-door double-directional controller and four-door uni-directional controller. Adapting latest ARM chipset technologies and dual core architecture, it provides faster speed, stronger function and expansibility. It mainly applies in frequency card identification, user data loading, information storage, door lock control, passage control, and linkage fire alarm interlock control. Each controller supports stand-alone running, and also supports running on-line or off-line via, multi-node and trans-regional RS232/485, TCP/IP network communication. System can connect up to 2000 controllers.Semtong intelligent access control system, is not a simple door lock tool, but a fast, convenient, safe, reliable management system with multi-function, high efficiency and high quality. It will truly make you enjoy numerous convenience and benefits that hi-tech brings to you.