Grüntal junction
At the Grüntal junction, the line from Crottendorf (staging yard) joins the single-track line Adorf - Feldberg - Grüntal - Dornbach - Zellwald.
A mechanical interlocking with key mechanism, block top and signal levers as well as a track diagram interlocking type GS II are available as operating stations.
The switch is reproduced as a locally operated, key-dependent switch. The keys match the switch locks of the switch in the outdoor layouts.
The protection switch on the layout allows the reproduction of an alternative connection point.
Main contents to be learned
- Operating a mechanical interlocking by means of a key-operated system
- Offering/accepting on single-track lines
- Coordination with the 3 neighbouring operating centres is absolutely necessary as all incoming lines are single-tracked.