STB devices at stations are used to control the arrows and signals and provide such mutual dependencies that exclude the opening of the signal when the arrows are incorrectly installed or unlocked, and when the signal is open, do not allow the translation of those arrows that pass the train.
Microprocessor centralization of arrows and signals Analysis of existing ETS systems and their exploitation experience indicate that the relay system is used and operated for more than 60 years, resulting in a significant increase in the number of fraud Read more…
Modernized Arrow electric motor Electric motor The engine is located in a cylindrical sheath with closed ends heads at both ends. Two square collars / mounting protrusions protrude from each end edge supported by clutch and engine mounting. The engine is attached to the frame with two reverse mounting screws Read more…