To clarify: the split-flap elements used by the Swiss railway (SBB/CFF/FFS) were produced by Omega Electronics and had the controlling hardware embedded on each

To clarify: the split-flap elements used by the Swiss railway (SBB/CFF/FFS) were produced by Omega Electronics and had the controlling hardware embedded on each element, controlled via RS-485; the older Solaris needed an external controller that drove the stepper motors.