00726naa#a2200193#i#450# EN\\bibl\81862 20250103041323.5 2412-9186 20170925b2017####ek#y0engy0150####ca RUS RU A simulator of signalling, centralization and blocking cable line characteristics for light-optical light-emitting-diode systems’ testing Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2017 12 с. Journal article local Меры безопасности. Сигналы. 656.25 RUS Nasedkin Oleg A Lediaev Evgenii V atjournal.ru