Class 101 DMU Sound Decoder & speaker (21)

Below is a list of the Function keys and their assignments applicable to this model. F0. Lights on /off F1. Sound on/off F2. Double horn 1 F3. Double horn 2 F4. Single horn F5. Double carriage door slam F6. Single carriage door slam F7. Guards whistle F8. Driver/Guard communication buzzer F9. Flange squeal F10. Rail joints (increases and decreases with train speed) F11. Shunting mode, Press once for half speed, press again and you are back to normal control. F12. Acceleration/Deceleration speed over ride. F13. Aux 1 F14. Aux 2