The A22 is Atrium’s powerful web based IP hybrid module. The flexibility of the A22 module allows it to be set either as a 2-door controller or expander (2 in 1). The A22 includes an embedded web server that combines performance and simplicity enabling you to manage users/cards, lock or unlock doors, view system events and display controller information from anywhere in the world! Industry unique and effortless card enrollment mode minimizes system start up and simplifies your life. A pre assembled universal power supply is included with every A22, making this unit an industry leader in efficiency and simplicity.