A method for allocating addresses to passenger service units (PSUs) and a service controller for a passenger cabin of an aircraft are provided. A coding device of the controller defines multiple coding parameters each corresponding to an installation position of a PSU. Each coding parameter defines a coding value. The PSUs are installed at respective installation positions in an installation space. A head unit of the controller communicates with the PSUs. In response to a start command, a respective coding value is determined at a respective installation position of a respective PSU. A respective waiting time is determined from the respective coding value according to a time rule. A response is transmitted to the head unit for each PSU upon expiration of the waiting time from the start command. Upon receiving the response, an address is allocated to a PSU which transmitted the response.