Provided is a method for treating contaminated soil. Components mounted on a board are separated according to whether they are related to a primary side of a power transformer or a secondary side. To counteract that and achieve a durable adjustment of the pre-tension, the actuator is pre-settled before being placed in service. If an application later starts executing on a different computer, then the application can register a different mapping. On the case of receiving a data frame transmitted from the bridge, the repeater can replace the content of transmitter address field by the address of the repeater itself, and then forwards the data frame to the station.