An exemplary method of automatically addressing a plurality of fixtures in an elevator system includes establishing a shared communication link between a central controller and the plurality of fixtures. The method includes determining whether a selected elevator device operation is performed at a location of a fixture and enabling the corresponding fixture to receive initializing information, such as addressing information. The central controller broadcasts the initializing information over the communication link for automatically providing the initializing information to the enabled, corresponding fixture. By enabling only one fixture at a time, based on the selected elevator device operation, the central controller is able to accurately address each of the fixtures individually even though the initializing information is broadcast over the shared link.