All Aboard!
Tsunami2 Electric User’s Guide
5
Using Tsunami2
The Tsunami2 Digital Sound Decoder is designed to enhance your model railroading
experience by giving you a wide variety of innovative features and incredibly realistic sound for
your models. Some of the features discussed in this user’s guide include Dynamic Digital
Exhaust for electric locomotives, Hyperdrive2 advanced motor control, Flex-Map function
mapping technology, two volume mixers, independent and train brake functions, and Motorman
Omura sound effects. Tsunami2 also provides selectable airhorns, bells, air compressors,
couplers, and traction motors to allow more versatility in creating your ideal model railroading
experience.
You can start using Tsunami2 right out of the package without making any adjustments.
However, you may adjust settings at any time by making changes to Configuration Variables
(CVs). Most DCC decoder and command station manuals call this “programming”, though this is
misleading and sounds scarier than it is. At no point are you required to learn programming!
This user’s guide will walk you through operating and programming Tsunami2 to its full capacity.
Default Function Assignments
The first time you operate your Tsunami2
decoder, you will be able to activate features and
sound effects by simply pressing the appropriate
key on your cab or command station console.
These are “default” function assignments. The
effects listed in Table A are assigned to function
keys F0-F28 by default. This section describes
how to activate each effect with function keys.
Note: You can assign any effect to function keys
labeled as “Not Assigned” in Table A with Flex-
Map function mapping CVs. Refer to
“Configuring Function Mapping” for more
information about customizing function
assignments.
Note:
Pressing function keys F0-F28 will toggle
functions “on” and “off” and activate effects.
Turn On the Lights
Ensure your locomotive is in the forward
direction, then turn on F0 to illuminate the
headlight. Reverse the locomotive direction to
turn off the headlight and turn on the backup
light. Pressing F0 a second time will turn off the
headlight and backup light outputs.
Turn on F7 to dim the headlight or backup light
before passing oncoming trains, or while waiting
on a siding. Press F7 again to return the
headlight and backup light outputs to full
brightness.
Table A. Default Functions
Function Key Effect
F0(f) Headlight
F0(r) Backup
Light
F1 Bell
F2 Airhorn
F3 Short
Airhorn
F4
Pantograph Extend, Retract
F5
Stop Request Bell
F6 Pneumatic
Doors
F7 Dimmer
F8 Mute
F9 Grade-Crossing
Signal
F10 Not
Assigned
F11 Independent/Train
Brake
F12 Brake
Select
F13 Couple/Uncouple
F14 Switching
Mode
F15 Handbrake
F16 Not
Assigned
F17 Not
Assigned
F18 General
Service
F19 Not
Assigned
F20 Steam
Generator
F21 Sander
Valve
F22 Cab
Chatter
F23
All Aboard/Coach Doors
F24
FX3 Function Output
F25
FX4 Function Output
F26
FX5 Function Output
F27
FX6 Function Output
F28 Not
Assigned