Dahua DOOR CONTROLLER 4 DOOR/ASC2204B-S DAHUA

Access Controller
> Support TCP/IP communication
> Two dual communication protocols: RS-485 and Wiegand (W26 and W34)
> Holds 100,000 users and stores 500,000 card swiping records
> Support interlock, group combination, anti-passback, remote unlock, and more
> Support card reader tamper alarm, intrusion alarm, door sensor timeout alarm, duress alarm, illegal card exceeding threshold alarm, and incorrect password alarm
> Built-in RTC, support manual time synchronization and auto time synchronization
> Support power-off memory protection and online upgrade
> Support watchdog (a device that protects a system from software or hardware failures)
> Support PoE power supply