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A transponder fixed between the rails.
Also known as: Track transponder, ETCS beacon
A European track-mounted transponder that transmits position and data to a passing train under ETCS.
Transmits position and route data to a passing train under ETCS.
Contexts: Public information
Is the point at which a train learns where it is, so a signalling system with no visible signals still has fixed physical points that define the geography.
Contexts: Public information
A flat rectangular unit fixed between the running rails, unmarked and carrying no device to be read by eye.