• 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