SoundTraxx LC Series Owners Manual User Manual
Page 24
LC SERIES DIGITAL SOUND DECODER OWNER’S MANUAL
24
Step 5: Function Mapping
Function Mapping Explained
Function mapping allows the DSD-LC to be reconfigured so that sound effects and function
outputs can respond to a different function key input. This is especially useful for users who have
throttles with less than eight function keys as now they can pick and choose what effects they
can control instead of being restricted to an arbitrary assignment.
There are 10 function mapping CVs - eight CVs, 35-42 are used to assign output control to func-
tion keys 1 through 8 respectively.
The other two CVs, 33 and 34 are both for the F0 function. CV 33 controls which outputs are on
when F0 is on and the locomotive is moving forward. CV 34 controls which outputs are on when
F0 is on and the locomotive is moving in reverse. If the same output is selected in both CV 33
and CV 34, that function will turn on when the F0 function is on regardless of locomotive direc-
tion.
Not all keys can control all outputs or effects. The table below shows which functions can be
mapped to which outputs. Note that a function key can be set up to control more than one output
and also an output can be controlled by more than one function key. In the second case, if an
output is mapped to two function keys, either key will turn that output on, however, the output will
not turn off until both function keys have been turned off.
To determine the correct CV value,
1.
Find the column in the function mapping table corresponding to the function or sound
effect output you wish to control.
2.
Next locate the row corresponding to the function key you wish to use for controlling
the selected output.
3.
Note the number located in the box at the intersection of the row and column you have
selected.
4.
Program the CV listed in the row chosen in step 2 with the value found in step 3.
F0 (f)
F0 (r)
F1
F2
F3
F4
F5
F6
F7
F8
33
34
35
36
37
38
39
40
41
42
1
1
1
1
32
32
32
32
4
4
4
4
16
16
16
16
2
2
2
2
64
64
64
64
8
8
8
8
1
1
128
128
128
128
16
16
16
16
2
2
32
32
32
32
4
4
64
64
64
64
8
8
128
128
128
128
16
16
32
32
2
2
2
2
4
4
4
4
8
8
8
8
1
1
1
1
Function
K
ey
Contr
ol CV
Headlight
Bac
kup Light
Whistle/Airhorn
Bell
Reserved
FX1
Dynaimic Brake
(Diesel Only)
FX2
Table E. DSD-LC Function Mapping
RPMs (-)
(Diesel Only)
RPMs (+)
(Diesel Only)
Dimmer
Mute