... connectivity for Wigand-in, Wigand-out, Door lock connection, Alarm, Bell, Remote to Exit switch. Features: ... and professional unlocking combination function, easy integration with door lock system. 4. Communications Versatile interface options ... , built-in batteryAccess Control Interface forLock, door sensor, exit button, alarm, Door Bell, Anti-pass backWiegand SignalInput & OutputOptional FunctionsID ...