1/ There are over-current protection, over-voltage protection, reversal protection for the power supply and all the input and output terminal. 2/ Multiple hardware protection measure. 3/ C4-SMART can be integrated with other security systems such as CCTV, fire alarm, BAS(building automation system) and other systems to configure total security system. 4/ Supports different wiegand reader(wiegand 26-40 bit). 5/ The controller support different wiegand format and can connect to different reader, including ID card reader and MFcard reader . 6/ Input/Output Ports to Control Doors 7/ Connect with variety of sensors, alarms, exit buttons, electric lock and other devices. 8/ Variety of Communication Function 9/ Using either serial or TCP/IP communication, it provides reliable network system 10/ Normal open after first punch card can be setup 11/ Real-time Monitoring of Door status 12/ Using the management software, it allows real-time monitoring and control of door opening and closing of the whole system. 13/ Interlock function 14/ Link different doors with special logic that one door is Open, others should be closed. 15/ Multi-card operation 16/ This function is used to manage visitors or to manage some special high secure place. The doors are opened when appointed number registered cards are read together. 17/ Anti-Passback, Duress Mode, SDK available 18/ The system integrator can use the SDK to integrate the hardware into their existing access control software system or to develop a new software.