Applications of fixed-port dual protocol transceivers include gaming applications (e.g. slot machines), industrial PCs, factory automation, security networks, industrial process control networks, and point of sale (POS) equipment. In almost all of these applications, data for operation control, equipment configuration and sensory inputs are transferred via RS-232. In order to exchange larger amounts of data between multiple pieces of equipment and a central host controller, a multipoint RS-485 network is utilized.