Digital signalling in the Simmental

摘要

Components and signal lamps enabling a continuous digital connection with the light points have been used for the first time along a 30 km track section operated by BLS AG, the second largest Swiss railway company, in the Swiss Sim-mental between Spiez and Zweisimmen as part of the replacement of an interlocking system by Thales Switzerland. The ELEKTRA2 electronic interlocking system commands the local control and monitoring unit, the single element controller (SEC) which is installed on or next to the signal mast via an IP-based data network. Intelligent LED lamps (iLED) and an intelligent LED matrix indicator (iAnzeiger), which are connected to the SEC via a CAN bus, are used as the light points. The completely replaced system (fig. 1) with 70 SEC, 250 iLED and one LED matrix indicator was commissioned in October 2017. The experience of this new signalling technology has been positive after eight months of commercial operations.