Track Circuit - Siding Turnout

Siding Turnout

It is sometimes convenient to wire the detectors of a set of points through the track circuit over those points. This can be done in one of two ways:

• a contact of the points detector can shunt the track circuit when the points are reverse, putting the signals to red, however this is not failsafe.
• the track circuit can be split with extra blockjoints and the detectors in the points complete the track circuit when the points are normal and the signal is entitled to receive a green light. This is fail-safe.