→Example bell signals: I'm quite sure IFEs are class C!
* 3-1-2 Is line clear for Class B ordinary passenger DMU?
* 3-3-3 Is line clear for Class A/B passenger train not stopping at Bewdley?
* 2-5-1 Is line clear for Class
B footplate experience train?
Bell signals are also used by signalmen to inform each other about the passage of trains and for other reasons: