... party such as electric lock, alarm, door belling, sensor and so on, in order to improve security for human life and ... function keys, the left one is for door belling, the right one is for shift of identification mode.Infra-red ... /485, USB HostAccess ControlInterfaces for3rd party electric lock, door sensor, alarm, wired bell and exit button Wiegand SignalWiegand in and outOptional FunctionsID Card ...