Solid State Interlocking (SSI) is the brand name of the first generation processor-based interlocking developed in the 1980s by British Rail's Research Division, GEC-General Signal and Westinghouse Signals Ltd in the UK.
Read more about Solid State Interlocking: Interlocking Hardware, Data, External Hardware, Data Links, Market Penetration, Future
Famous quotes containing the words solid and/or state:
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