The TowiTek Universal Access Controller UAC400 is the central control unit for access control systems with up to 400 authorized cards. Targeted deletion of individual lost cards is conveniently possible thanks to the display. The switching contact can be configured as a time or changeover contact. An input unit must be connected to the Wiegand interface for operation. For the use of RFID transponders, the RFID long-range reading antenna is utilized. The access controller is delivered fully assembled and mounted in a universal housing.