... control connectivity for Wigand-in, Wigand-out, Door lock connection, Alarm, Bell, Remote to Exit switch. Features: 3.5'' ... and professional unlocking combination function, easy integration with door lock system. Versatile interface options including RS232/485, TCP/IP, USB ... Access Control Interface for: Lock, door sensor, exit button, alarm, Door Bell, Anti-pass back Wiegand Signal: Input & Output ...