Controleur d'accès principal Dahua à quatre portes sens unique > Support 200,000 valid cards & 150,000 records. > CAN bus can cascade 16 sub controller modules. > Support card, password, fingerprint and combination. > TCP/IP interface . > Wiegand or RS-485 interface to readers. > Door close time out alarm, intrusion alarm, duress alarm and tamper alarm. > Global anti-passback, multi-door interlock, multi-personal open, remote verification unlock.