*Note- The Bell [F1] Dynamic Brake [F6] and
Rail-Wheel Clack [F10] can not be played
simultaneously-the Bell sound will interrupt the
other two sounds.
*Note- Because this locomotive has a dual
function sound decoder on-board, it does not
support CV read back features.
This decoder supports all program methods
including: register mode, paged mode, CV pro-
gramming mode, direct mode, and program-
ming on the mainv [OPS mode programming].
Program the locomotive the same way you
would program any other NMRA compatible
decoder with your DCC system.
Out Of The Box DCC Running
The first time you run your new SD45-2 loco-
motive there are a few steps you should take
to make sure the locomotive operates properly:
Test the locomotive in it’s analog mode
[D.C.] if possible. If it runs properly [lights,
sound, forward and reverse] on D.C., it will
run trouble free on DCC.
The locomotive comes with a factory de-
fault DCC address of #3. Before program-
ming a new address into the locomotive,
test run it on your DCC system on address
#3. This will also insure there are no prob-
lems with the locomotive.
Test all functions [lights and sound] on
default address of #3. Use the supplied
Function Chart.
To avoid a current overload on your DCC
system when starting it up with a lot of sound
equipped locomotives on your layout, your new
Athearn Genesis SD45-2 locomotive does not
automatically start up in the DCC mode. To
start the locomotive, in Run Mode, enter the
address you have assigned for the locomotive,
then press any function button [F1-F9] two
times (do not press F0 2 times or you will shut
off the sound). You will then hear the locomotive
go through it’s start up procedure [there will be
no movement or operating functions for a few
seconds until the locomotive’s idle steadies
out]. Once your locomotive finishes it’s start up,
it is ready to go to work on your layout.
When you are finished running your locomotive,
pressing function button 8 [F8] four times will
shut your locomotive down. When the locomo-
tive is shut down this way, it will not automati-
cally start up next time you need it. You will
have to press any function button 2 times to
re-start it.
Once these steps have been completed, fol-
low the included CV chart to program any new
programming features you want into the loco-
motive. When you initially program your new
SD45-2 locomotive, this step should be done
on a program track for best results. You must
know how to properly use your DCC systems
programming mode to program any decoder. If
you are unsure of programming a decoder with
your system, please consult your DCC systems
instruction book regarding programming or
contact the manufacturer of your DCC system
for proper guidance.
1.
2.
3.
FACTORY
VALUE
RANGE
CV
REGISTER
Short address
R1
1-127
3
CV1
Start voltage
R2
0-32
0
CV2
Acceleration
R3
0-32
0
CV3
Deceleration
R4
0-32
0
CV4
Top voltage
-
0-32
32
CV5
Speed curve select (0=linear, 1=slow
increase at slow speed, 2=fast increase
at slow speed)
CV6
Basic configuration
R5
R6
-
-
-
Page number
-
-
-
2
CV29
Manufacturer Version #
R7
-
32
CV7
Manufacturer I.D.
R8
-
143
CV8
Long address upper byte
-
192-231
192
CV17
Long address lower byte
-
0-255
3
CV18
Advance consist address
-
-
-
-
-
0-127
-
0
CV19
When CV-21=0, all accessory functions will follow
its own address. When CV-21=1, all functions
will follow the consist address
0
CV21
Horn type
0-14
4
CV50
Sound on/off (0=off)
0-1
1
CV49
Horn volume
0-3
3
CV51
Bell type
-
-
-
0-6
3
CV52
Bell volume
0-7
3
CV53
Bell ring rate
0-50
3
CV54
Diesel rumble volume
-
0-3
3
CV55
Brake squeal volume
-
-
-
-
-
-
-
-
-
0-3
3
CV56
Dynamic brake volume
0-3
3
CV57
Air release volume
0-3
3
CV58
Air pump volume
0-3
3
CV59
Safety pop valve volume
0-3
3
CV60
Engine cooling fan volume
0-3
3
CV61
Coupling volume
0-3
3
CV62
Random noise volume
0-3
3
CV63
Rail wheel clack
0-3
3
CV64
User identification number
-
0-255
0
CV105
User identification number
-
-
-
-
-
-
-
0-255
0
CV106
Light effects
see chart
0
CV112
Coupling fire volume
0-3
3
CV113
Brake release volume
see chart
0
CV114
Auto brake squeal enable/disable
0-1
1 (enable)
CV115
Coupling sound type
0-2 (0 is off)
1
CV116
Random sound enable
0-1
1 (enable)
CV118
-
Ditch light flash rate
0-10
3
CV120
Diesel sound type (0=off, 1=rpm & notch synchro
to speed, 2=linear rpm synchro to speed, 3=notch
up/down) ( F8=notch down, F9=notch up)
-
0-3
1
CV122
Factory default setting: Programming to 1 will
restore all CV’s to default setting
-
-
0
CV125
DESCRIPTION
Programming for DCC Operation – Digital Mode
This decoder supports all program methods including register mode, paged mode, CV programming, direct mode
and programming on the main (OPS mode programming). Program the locomotive the same way you would pro-
gram any other NMRA compatible decoder with your DCC system.
Note: Due to the nature of dual function decoders, it does not support the CV read back feature.
The Dual-Function decoder is manufactured by Model Rectifier Corporation for Athearn Trains.
1550 Glenn Curtiss Street
Carson, CA 90746
www.athearn.com
©2006 Horizon Hobby, Inc., Champaign, IL.
G101 04/14/06
GENESIS SD45-2
WITH DC/DCC
SOUND SYSTEM