DS-K2804 is a series of powerful and stable access controller, using the logical architecture design. The uplink and downlink adopt TCP/IP and wiegand communicate respectively. Its signal processed with special encryption and can be run offline. Anti-tampering function is also supported. DS-K2804 Four-door Access Controller 32-bit high-speed processor TCP/IP network communication, with self-adaptive network interface. The communication data is encrypted to ensure information security Supports Wiegand interface for accessing card reader. Wiegand interface supports W26/ W34 and is seamlessly compatible with third-party card reader Massive storage with 10, 000 cards information and 50,000 card swiping records.