Abbreviated term for Solid State InterlockingA first generation processor based system for controlling the Interlocking between Points and Signals, as well as communication with lineside Signalling Functio... More.
The site for Miniature and model signalling!
Abbreviated term for Solid State InterlockingA first generation processor based system for controlling the Interlocking between Points and Signals, as well as communication with lineside Signalling Functio... More.