Four Door Master Access Controller, Support 200,000 valid cards & 150,000 records CAN bus can cascade 16 sub controller modules Support multiple cards 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 Web service can used to configure sub controller Support 128 efficient time and holiday schedules Built-in RTC, support DST Watch dog function ensure device free from halting Surface mounted installation Accumulator battery extension Onvif Profile C, CGI, SDK to the third party platform