JMRI: Decoder - Decoder Information

# JMRI: DecoderPro User Guide

## Decoder Information

The JMRI project has collected a large amount of information about DCC decoders, which it makes publicly available in several ways. These are described on this page.

## Access to the information via the web

Web pages are automatically created from the DecoderPro configuration files as part of each release. These contain:

- Decoder identification CV values used by DecoderPro to identify the manufacturer and type of an unknown decoder.
- Index to individual decoder pages, listed by manufacturer. This provides a one-page summary of the characteristics and CV contents of the decoders.
- Selection guides listing decoder size, and by decoder electrical characteristics.
- Combined summary of CVs for all decoders.
  Note that this is a very large page!

## Information in Comma-Separated-Values (CSV) format

To make it easier to import into a spreadsheet or other program, these are also made available as files in Comma-Separated-Values (CSV) format.

- decodersizes.csv Physical size for each defined decoder
- cvsummary.csv CVs present in each decoder
- decoderpower.csv Power limits and connector by decoder

## XML files

The definitive version of the data is in XML files. These can be obtained from any JMRI distribution, or via the web at https://jmri.org/xml.