... M880 has access control connectivity for Wiegand-in, Wiegand-out, Door lock connection, Alarm, Bell, Remote to Exit switch.Features:.Color ... function keys.Relay contacts for alarm, bell, lock, exit, switch, etc.Built-in USB port allows for manual data transfer when ... ,Self-Service Query, Automatic Status Switch, T9 input, photo-ID, Camera, Web-serverAccess Control Interface for3rd party electric lock, ...