Access controller DS-K2604T 4-door with box

Supports multi-door interlocking function, anti-passback function, multi-card function, first person function, super card and super password functionOnline upgrade function and online remote control of the doorsSupports alarm event upload (including tamper-proof alarm, unsecured door alarm, forced entry alarm, delayed door alarm, duress card and code alarm, blocklist alarm and alarm for invalid card swiping attempts alarmSupports RS-485 interface and Wiegand interface for accessing card reader. Wiegand interface supports W26/W34 and is seamlessly compatible with third-party card reader with Wiegand interfaceSupports time synchronization via NTP, manual or automatic methodSupports standby batteryData can be permanently saved when the access controller is powered off