Abstract: A method and a system are proposed, wherein all the terminals of a physical unit and a control appliance are connected to a physically separate control center via a base terminal appliance. This control center has the base terminal appliances of further physical units connected to it. In addition, the control center has producers connected to it which manufacture the terminals or supply services for the terminals or types of terminals. To actuate the terminals, provision is made for selection processes which are input on the control appliance to be conveyed via the control center to the producers of the appliances, from where the control signals produced there are supplied via the control center to the relevant terminals. There is thus no direct connection made between a type of remote control and the appliance controlled by it.