| Key | Function | Soundslots | Volume CVs | Volume value |
|---|---|---|---|---|
| Light | front light on/off | |||
| F1 | sound on/off | 2, 18 | 267, 395 | 128, 25 |
| F2 | airhorn | 3 | 275 | 128 |
| F3 | short airhorn signal | 16 | 379 | 128 |
| F4 | motor fan | 5 | 291 | 95 |
| F5 | compressor | 6 | 299 | 45 |
| F6 | acceleration/brake time, shunting mode/shunting speed | |||
| F7 | curve squeal on/off | 15 | 371 | 128 |
| F8 | AUX1 | |||
| F9 | compressed air let off | 9 | 323 | 90 |
| F10 | conductor's signal | 10 | 331 | 115 |
| F11 | coupler clank | 8 | 315 | 70 |
| F12 | sanding valve | 11 | 339 | 32 |
| F13 | locomotive brake release/set | 13 | 355 | 40 |
| F14 | station announcement #1 | 7 | 307 | 128 |
| F15 | station announcement #2 | 4 | 283 | 128 |
| F16 | open/close door | 12 | 347 | 110 |
| F17 | rail clank sound on/off | 17 | 387 | 128 |
| F18 | train brake release/set | 20 | 411 | 40 |
| F19 | motor fan off | |||
| F20 | radio communication #1 | 14 | 363 | 105 |
| F21 | radio communication #2 | 19 | 403 | 105 |
| F22 | radio communication #3 | 21 | 419 | 105 |
| F23 | radio communication #4 | 22 | 427 | 105 |
| F24 | hand brake set/release | 24 | 443 | 80 |
| F25 | sound fader | |||
| F26 | disable brake squeal sound |