What is Door Access Controller?
Door Access Controller is the core of data processing and storage part of the door access control system.

The purpose of this device is to restrict the access to certain areas in your office / home etc. without the proper authentication.

The type of Door Access Controller
Door Access Controller may be classified by the protocol of communication. They are divided into: RS485 network-based access controller and TCP / IP network-based access controller.

Note: RS485 network-based access controller usually has the RS232 serial communication function. That means they can connect to computer with RS232 serial port.

Door Access Controller may be classified by the number of doors they are divided into: single door access controller, two-door access controller, four-door controller etc.