Inc Sound Module Decoder - Manual

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capable decoder(s). In this case, program the decoders with the lock

feature first, locking each one when programming is complete, and

leave the non-lockable decoder to be programmed last.

To access a decoder after installation:

1. When you want to program CVs in the target decoder with ID XX

again, unlock it by programming CV15 to match the ID XX pro-

grammed in CV16. In the case of the example decoder, program

CV15 to 02.

2. Once the decoder is unlocked, program CVs as desired.

3. When programming is finished, lock the decoder by programming

CV15 to 0.

To identify the decoder(s) present in a locomotive:

1. Write a 0 to CV15

2. Attempt to read a 0 from CV16.

3. If no acknowledge is received, there is no decoder with ID 0. If an

acknowledge is received, a decoder with ID 0 exists.

Repeat this process for ID 1 through 7 to check for those IDs. Because the ID

values are low, a successful read is usually quick. An unsuccessful read, i.e.

when the decoder is not present, will take some time on many existing com-

mand stations, but eventually give an answer.

10.3 Decoder ID CVs 105, 106, 07, 08

CVs 105 & 106 are user private ID CVs. These can be programmed to any

value you choose.

CV07 is the version ID. This is a read only CV that can’t be changed.

CV08 is the decoder reset CV which also contains the manufacturer ID. The

manufacturer ID is read only and can’t be changed.

11.0 Digitrax SoundFX System

Digitrax SoundFX

decoders come “ready to run” with a pre-loaded sound

project appropriate for the locomotive each decoder was designed to fit.

Decoders not built for specific locos come preloaded with a multiple scheme

sound project that gives the choice of a either generic diesel or generic steam

sound project or, in the case of the multi-scheme project, several different

choices including both steam and diesel. Some sound projects include addi-

tional sounds such as horns, whistles and bells that can be used to customize

schemes within the project.