RS485 panel door access control

Functions:RS485 and RS232 communicationCould control four doors by 2 readers(which means this door could be controlled by both in&out direction)Card capacity: maximum 20,000 cardholdersEvents storage capacity on controller:100,000Access control:256 time zones & unlimited holidaysRemote openDoor status monitoring mapDoor open too long alarmDoors interlock ( only one door could be opened at the same time )Anti tail-after ( the access will be denied when you exit if you don't read the card when you enter)Card, password, card + password optional ( depends on the type of the reader )Access events history queryMulti-card access ( the access could be granted only by a certain group of people read their own individual card simultaneously )First card in (all the other access could be granted during a period only after an appointed card being read )Forced open alarm( input a durass code to launch the alarm in control center )Peripherals controlTiming upload tasks to controllers