A train safety assembly has an onboard apparatus of a first train safety system and a specific transmission device for transmission with a trackside part of a second train safety system. The onboard apparatus is started using a version of a first software and the specific transmission device is started using a version of a second software. The versions of the first and second software are checked for their compatibility. In order to be able to provide the train safety assembly for use on a track section, which is equipped with the trackside part of the second train safety system, and to put same into operation in a faster and more cost-efficient manner, if the started versions of the first and second software are incompatible, the transmission device is automatically restarted with another version of the second software, and the started first and second software are checked for their compatibility.
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