SignalAspectCondition
The ETCS telegram is sent when a signal frame shows a given aspect.
When this specialisation is used, the asset-and-state relation may be nil.
SignalAspectCondition
The ETCS telegram is sent when a signal frame shows a given aspect.
When this specialisation is used, the asset-and-state relation may be nil.
activeWhenShowingAspect
withExtraSignalCondition
comment
The ETCS telegram is sent when ...... and-state relation may be nil.