Wiegand and RS485 Elevator Access Control PanelElevator control panel support both RS485 and wiegand interface. It can restrict access up to 16 floors when combining the BF-333 floor secure I/O together. Each SEMAC S3 panel can connect with a BF-333. For example, a lift with floor accession would be – SEMAC S3 + BF-333 + RS485/Wiegand reader. With integration with our SOMAC software, it’s easy to manage the whole elevator control systems.