Inc Sound Module Decoder - Manual

www.digitrax.com- 7 -

5 and 6 Digitrax decoders. This Mobile Decoder Manual and all Decoder

Instruction Sheets are available at www.digitrax.com. In addition, the first

edition of the Digitrax Mobile Decoder Manual is available at www.digitrax.

com for pre-Series 4 decoders that are no longer in production.

Specification sheets and Instruction Sheets for all Digitrax decoders past and

present are available at www.digitrax.com

2.1 Digitrax Decoder Part Numbering System

Current production Digitrax mobile decoders use the following numbering/

naming system:

All motor + function decoders begin with a “D” for digital decoder.

All sound + motor + function decoders begin with either SD or SDX:

SD is a standard sound decoder with 8-bit sound.

SDX is a premium sound decoder with 16-bit sound.

The next character indicates physical size.

This is based on the smallest “scale” the decoder is designed to fit. This will be

a Z, N, H, O, or G.

The next character is the current rating.

This is 1, 2, 3, 4 or 5. We designate 1.25 & 1.5 amp decoders as 1 and 3.5 amp

decoders as 3 for simplicity and as a conservative rating.

The next character is the number of function outputs, including direc-

tional lights.

This is not necessarily the number of function leads. In some cases, function

output pads are provided so leads can be added to operate additional functions.

Consult your decoder instruction sheet for the location and function output

numbers associated with these output pads.

The next character is a Digitrax series designator.

Series 3, 4, 5 & 6 decoders are current production decoders. These have FX

function outputs, torque compensation, supersonic (silent operation), scaleable

speed stabilization (Back EMF) and transponding.

Series 3 decoders with less than 6 functions have a modified set of features.

See decoder descriptions for actual features available in each decoder.

Series 4 & 5 decoders have all the features of Series 3 plus support for sound

on board or the ability to add sound using a SoundBug sound only decoder.

Series 4 sound decoders are 3 voice, 8-bit sound/motor/function decoders.