Frequency track circuit

Siemens remote-fed audio-frequency track circuits are used for the precision clear or occupied indication of track sections. The track section is remote-fed with a frequency-modulated voltage. Preferred application areas are for main-line railways as well as on metro, rapid transit, and suburban railways.

Clearguard TCM 100

Clearguard TCM 100 is the successor of the proven Clearguard FTGS audio-frequency track circuits from Siemens. They are used for the seamless clear and occupied indication of track sections. The track section is remote-powered by a frequency-modulated voltage; the transmitter and receiver can be accommodated centrally in the interlocking which is located at a distance of up to 6.5 km from the track section. Clearguard TCM 100 and FTGS are used for mainline services, underground and suburban railways, and light-rail transit systems.

The indoor equipment is of compact, modular design and enables state-of-the-art diagnostics via the web. For an optimum migration of existing customer systems, the proven FTGS outdoor equipment is retained and remains thus compatible with the relevant standards (TSI, EN 50238, etc.).