BRCW Class 27 XL Sound Decoder

Below is a list of the Function keys and their assignments applicable to this model. F1. Sound on/off F2. Horn 1 – double tone a F3. Horn 2 – double tone b F4. Horn 3 – single tone F5. Buffering up F6. Coupling up F7. Flange squeal F8. Seagull for those coastal layouts! F9. Shunting mode. Press once the loco goes slowly press again and you are back to normal control. F10. Accelleration/Decelleration. Press once to over ride, press again to cancel. F11. Aux 1 F12. Aux 2 F0. Lights on/off (if fitted on model)