About ALSN

ALSN is a train control system used widely on the main lines of the ex-Soviet states. It uses modulated pulses inducted into rails similar to the Italian RS4 Codici and American Pulse Code Cab Signaling. On high-speed lines the variant ALS-EN (АЛС-ЕН) is used which takes advantage of a double phase difference modulation of the carrier wave.

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Facts from Wikidata (CC0).

ALSN

Induction-based cab signalling system used in ex-Soviet states

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About ALSN

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Facts from Wikidata (CC0).