F Key

Function/Sound

Latch/
Momentary

Sound ID

CV

Volume

 CV

0

Directional Top Light

L

570

571

1

Sound On/Off

L

-

-

2

Brake Key (non-latching)

M

516

517

3

Toot

M

519

520

4

Toot Toot

M

522

523

5

Light Engine Mode

L

-

-

6

Coasting/Idle Key

L

-

-

7

Speed Lock

L

-

-

8

Engine Speed up

L

534

535

9

Flange Squeal

L

537

538

10

Cab Light

L

540

541

11 ON

Buffering up

L

543

544

11 OFF

Coupling/uncoupling

L

543

544

12

Spirax Valves

L

546

547

13

Wagons Taking up Slack

M

549

550

14

Fuel Transfer Pump

L

552

553

15

Exhauster (Vacuum Train Brakes)

L

555

556

16

Compressor

L

558

559

17

Guard’s whistle

M

561

562

18 ON

Cab Door Opened

L

564

565

18 OFF

Cab Door Closed

L

564

565

19

Fade All Sounds

L

-

-

20

Shunting Lights

L

21

Shunt Mode

L

-

-

22

Windscreen Wipers

L

679

680

23

Reserved

L

-

-

24

Reserved

L

-

-

25

Reserved

L

-

-

26

Reserved

L

-

-

27

Volume Down

M

-

-

28

Volume Up

M

-

-