The AC22 is a 2-door controller based on Atrium technology. The use of AX22 expansion modules allows the management of 8 additional doors by the AC22, bringing the total capacity to 10 doors. When using 10 AC22s and 40 AX22s, up to 100 doors can be managed. The AC22 includes an RS485 communication bus with automatic detection (no risk of errors due to the lack of sweaters or dipswitches). The auto-learning mode of cards simplifies the use and start-up of the system. Built-in web server that is screen adaptive. Integrated onboard Ethernet port with AES 256 bit encryption. Automatic detection of expansions (no dip switches) Quick and easy auto-learning procedure. Operation without fuses. 1,000 access levels. 100 partitions. Fast firmware upgrade (less than 10 seconds). FREE management software. Compatible with Wiegand (26, 30 and 44 bits) and ABA Track II. Easy maintenance thanks to removable clamps. Detailed LED indication for stand-alone start-up.