Interlocking System Extension for CTC (ProSigma)

In the field of railway interlocking systems copper-based, long distance connections exists between relay switches and remote equipments. In the case of constructing a new system, the state-of-the-art solution is to apply signal transmission based on GSM or fibre-optic communication. Since our company has gained a wealth of experience in SIL4 certified safety systems whilst developing relay based railway safety equipment, we took it upon ourselves to design and create a Safety Signal Transmitter (SST). Our equipment called ProSigma provides fail-safe signal transmission ensuring the availability of SIL4 using GSM or fibre optic communication. The project is funded by the European Union and the European Regional Development Fund.

    The main functionality of the ProSigma is to realize a fail-safe signal transmission on the highest SIL (Safety Integrity Level)
    The availability of the equipment is over 99,99%. In case of disconnection the outputs move into a safety position
    Equipment communicates with each other via IP-based network
    The microprocessor controlled equipment are modular, and implement the two-out-of-three safety architecture
    Functions are achieved through a diverse software system on a diverse hardware base
    The system fulfils MSZ EN 50159 standard on open networks, so we are able to guarantee safe transmission over public networks

Reference Kőbánya-Kispest Station (MÁV Zrt, Thales)
Interface Integra D70 or other relay interlocking, ERTMS Level-2 systems
Response 500ms
Possible applications CTC, CTS, ERTMS Level-2
Standard EN 50126 family (SIL4)