Firmware Downloads and Updates

We've had recent reports of the latest JMRI 4.2.x having problems IPLing (updating) various Digitrax products and downloading sound decoder projects. We recommend using prior known stable versions of JMRI to avoid problems. If you are having issues using JMRI and Digitrax products, please visit our Help Desk and open a support ticket to communicate the issues you are seeing.

From time to time, Digitrax issues firmware updates for our products.  Check below to see if any firmware updates are available for dowload for your Digitrax equipment.

In addition throttle hardware conversions are available if you want to convert from walk around operation to wireless.  Please click here for more information on conversions that are available.

DT402 Firmware

Nov. 17, 2015 (version 1.7) - Stability fixes to improve address selection.

LNRP Firmware

Oct. 20, 2015 (version R4) - This code improves the Railsync current drive capability and protection and allows better performance on bigger layouts with more connected loads.

PR1 Drivers

April 24, 2013 (version 1.0) -

PR2 Software

Nov. 15, 2013 (version 2.0) - All required software for the PR2 is included in the SoundLoader download. more

PR3 Firmware

March 6, 2014 (version 1.0) - Update for 64 bit operating systems.

  • PR3 1.0 Firmware

    This is a product upgrade to expand the PR3 beyond the original 32 bit operating system design capability. Users on 32 bit systems and whose PR3's are working fine do not need to modify their PR3's. This IPL is only recommended for users with 64 bit systems or have had issues with Vista/Win7/Win8.

  • PR3 1.0 Update Instructions (for 64 bit systems)

    Instructions for the PR3 1.0 update. Please read before trying to install the 1.0 update!

PR3 Installation Instructions

Sept. 11, 2013 (version 1.0) -

PR3 Windows 2000 Drivers

Nov. 4, 2011 (version 1.0) -

PR3 Windows XP, Vista, 7, 8, and 10 Drivers

Nov. 4, 2011 (version 1.0) -

UR92 Firmware

Dec. 10, 2015 (version R8) - This rev 8 fixes UR92 link issues with multiple UR devices on the LocoNet and improves Duplex reliability. We want to thank Frank Fezzie Jr. and others that have supported him in helping isolated this intermittent problem. Merry Christmas! more

Zephyr Xtra (DCS51) Firmware

July 27, 2015 (version R5) - Small timing changes for the LED driver hardware update.


DigiGroupSetup - 1.03

This program allows convenient Duplex Group setup for any UR92 on LocoNet.

DigiIPL - 1.09

Firmware Loader and Updater.

DigiMon - 1.01

This program allows monitoring of LocoNet message traffic and operations.

SoundLoader v2.0 and Utilities - 2.0

The free SoundLoader 2.0 program gives the user the ability to overlay sounds in SoundFX project files. Customize sound schemes to suit you!

USBDeview - 2.40

USBDeview is a small utility that lists all USB devices that currently connected to your computer, as well as all USB devices that you previously used.

Manuals & Instruction Sheets

For product documentation, see our Manuals & Instruction Sheets page.