Scientific paper ID 1022 : 2014/3

In renovation and modernization of existing railway signaling systems, based on communication channels with transmission lines transported high responsibility information old lines area exchanges with new optical transmission medium, which has a number of new the quality and undoubted merits. While problems arise, the most notable of which are related to safety after a failure. This article provides such a technical decision addressed to a remote management and control of automatic crossing devices. The paper presents analyses and fail-safe electronic circuit to control the faults tract. Ananalys is of the safety and reliability of telecommunication channel is present.