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Class 43 functions
Function number Sound Operation
F0 - Directional lights (FOf+FOr)
F1 Startup/shutdown -
F2 High-low horns -
F3 Low-high horns -
F4 Brake hiss Brakes are applied
F5 - Light engine mode
F6 Air release -
F7 Coupling/uncoupling -
F8 Flange squeal -
F9 Low short horn -
F10 - Cab lights
F11 ETHEL mode (maintains idle sound at all speeds) -
F12 Fade out/in -
F13 Guard's whistle -
F14 Coach door slam -
class 43 notching
CV 265 value Notch 1 Notch 2 Notch 3 Notch 4
101 1 24 46 64
102 1 31 55 78
103 1 35 64 90
104 1 41 73 108
F4 Brake On pressing F4 the sound of the brakes being applied will be heard. At the same time, if the throttle is set to zero, the loco will slow down as if the brakes have been applied. The rate of braking can be adjusted via CV4. For best results, and to closely simulate the prototype, it is recommended to set the F4 action on your DCC controller to 'trigger' (momentary) action, rather than latching, if your DCC system offers this as an option.
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