OCB-K2804 access controller, using the logical architecture design. The uplink and downlink adopt TCP/IP and wiegand communicate respectively.

  • Massive storage with 10 thousand cards information and 50 thousand card swiping records.
  • Supports first card function, super card and super password function, online upgrade function and online remote control of the doors.
  • Supports various card types such as normal/disabled/blacklist/patrol/visitor/duress/ super card, etc.•Supports tamper-proof alarm for card reader, un secured door alarm, forced entry door alarm, alarm for door opening timeout, duress alarm, and alarm for invalid card swiping attempts alarm, case in alarm and restore, insufficient storage alarm for offline event, network break alarm.
  • The recognition and storage of card number with maximum 20 digits.
  • Supports online and offline operating mode.
  • Supports time synchronization via NTP, manual or automatic method.
  • Watchdog for device running status detection.
  • Data can be permanently saved when the Client supports attendance function.
  • High/low temperature resistant design(-20℃ to+65℃).
Model OCB-K2804
Working Voltage DC 12V
Power consumption ≤3.5W(without load)
Processor 32-bit
Uplink   Communication Interface TCP/IP Network Interface and RS-485 Interface
Downlink   Communication Interface Wiegand interface
Storage Storage for 10 thousands valid cards information and   50 thousands card swiping records
LED Indicator Power Supply Status, Communication Status, Abnormal   Status
Built-in Clock Yes
Accessible Card   Reader  4 Card   Readers (Wiegand Interface) Connectable
Input Interface  



Door Magnetic×4,

Door Switch×4,

Case Input×4

Output   Interface Door Switch Relay×4, Alarm Relay×4
Working   Temperature -20°C to +65°C   (-4°F~+149°F)
Working   Humidity 10% to 90% (Non-Condensing)
Dimensions (L×W×H) 285(L)mmx237(W)mmx69(H)mm