The A22K is ATRIUM’s encrypted web-based (https) door controller. Use your smartphone, tablet or any web-enabled device to easily manage the system over a secure connection in the office, at home or on the road! ATRIUM’s unique and effortless card enrollment mode minimizes system start up and simplifies your life Main Features Controls 2 doors and 4 readers (Entry/Exit per reader port) Pre-assembled universal plug-in power supply (120V/240V) Convert any A22K door controller to an A22KEC elevator controller by simply updating the firmware for free (up to 256 floors) On-board Ethernet Port with AES 256-bit encryption On-board RS485 communication bus, 1220 m (4000 feet) Embedded secure HTTPS web server Auto-detect hardware modules Quick and easy card enrollment procedure Lock outputs: 2 (750 mA at 12 VDC/each) Relay Outputs: 2 Form C relays (Dry Contact) 5 A @ 250 VAC, 7 A at 125 VAC, 7 A at 30 VDC