Solid State Interlocking

A GEC-manufactured SSI interlocking cubicle

Trackside functional modules (points module on left, signal module on right)

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.

单词	Solid State Interlocking
释义	Solid State Interlocking 英语百科 Solid State Interlocking 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.
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