The PC4820 is a MAXSYS 2-Reader Access Control Module. Monitoring and restricting the individual entry of a large number of people within a building is not easy. To protect a building from theft or damage, M A X S Y S® allows simple and affordable access control integration with its alarm systems. The 2-reader access control module (PC4820) can be programmed to control separate doorsor be used to control user accesson both sides of the same door. The PC4820 supports a wide range of 26-bit Weigand readers, such as Polaris™, i o P r o x™, Shadowprox™, HID and Kantech XSF Technologies. The PC4820 also supports any request-toexit detector, such as the T- R E X™.