Authorised Retailer/Installer



  Sales and DCC Repairs
Esu Sound Decoders
SoundTraxx DCC Decoders
TCS DCC Decoders

DCC Solutions

  For DCC and Sound Installations 


Auscision GT46C-ACe

Now available with a NEW Remastered
Custom Sound Project including the 
"Full Throttle - Drive Hold" feature.


The GT46C ACe is a diesel electric locomotive designed and built by Downer Rail, Cardiff using Electro-Motive Dieselcomponents between 2007 and 2013. A total of 79 locomotives were built with the first units built as the SCT class for freight operator SCT Logistics from 2007 followed by the LDP class for Downer Rail's Locomotive Demand Power division, the TT class for Pacific National, the GWA class for Genesee & Wyoming Australia, the WH class for Whitehaven Coal, and the SSR class for Southern Shorthaul Railroad.

The first GT46C-ACe went into service in 2007 and presently all 79 are still in service with the various operators under their own class.

The SCT class are used by SCT Logistics on their freight services from Adelaide to Melbourne, Parkes and Perth.

The LDP class were built by Downer EDI Rail to be leased out to rail operators through their subsidiary Locomotive Demand Power. In December 2008 it was announced that QR National has signed a five-year deal for the nine locomotives, covering the construction and delivery of the locomotives, maintenance, the provision of spare parts, and options to extend the lease for an additional five years. They are used on standard gauge intermodal freight services, LDP001-003 were painted in a blue and white Downer EDI Rail livery, while the remainder are in QR National yellow livery. A further five were manufactured in 2013.
The TT class were 31 units purchased by Pacific National  to haul their Hunter Valley coal trains. They are fitted with ECP braking and are used with similarly fitted NHDH, NHEH & NHYH hopper wagons built by Bradken Rail. They differ in some respects to the SCT/LDP class units, as they can be operated at two different weights: when weighing between 139 and 132 tonnes they are restricted in speed, fuel load, and range of operation in the same way as the heavyweight 90 class; but below 132 tonnes they are cleared for normal operations like the SCT/LDP class.  The first locomotives were originally intended to be built as LDP010 - LDP018 and leased to other rail operators, until Downer EDI reached an agreement with Pacific National for their outright sale. TT01 worked its first trial on 26 November 2009.
The three WH class locomotives were ordered by Whitehaven Coal entering service painted blue and white. They are used to haul coal trains from Whitehaven's mines in theGunnedah Basin and are operated by Pacific National.
In early 2011 the GWA class Genesee & Wyoming Australia ordered seven locomotives (later increased to 10) for the Adelaide–Darwin railway.
The SSR class were 2 locomotives ordered by Southern Shorthaul Railroad in 2014 to operate its grain services, replacing hired motive power.
In August 2015, Auscision released the GT46C-ACe Class of Locomotives which includes a 21 Pin socket for fitting a DCC decoder plus provision in the fuel tank for a 20 x 40mm speaker. There are micro switches under the model for turning the operating LED headlights, markerlights & ditch lights on/off in DC. In DCC all lights operate directional.

For this installation we recommend the ESU LokSound V4.0 (Sound) with our Custom Sound Project for the GT46C-ACe Class or the LokPilot V4.0 (No Sound) for those not wishing sound.  We offer several different options of DCC installation for this model to suit all budgets and can supply the decoders only for the DIY installers.

The DCC Solutions GT46C-ACe Class Custom Sound Project packed with sounds and features!

Our Custom Sound Project now includes some new features:

Full Throttle – Drive Hold

This feature allows you to simulate a loaded or empty train by pressing the F1 function button. When the button is pressed, the motor will remain at a constant speed, while the sound can be controlled independently by adjusting the speed on the throttle. This exciting, new feature gives the operator the ability to have the train crawl in notch 8 or coast at 100 km/h. Release the Drive Hold function button and you simply go back to throttle-controlled speed and motion.

Coasting on Demand

The sounds of the locomotive coasting are set in our sound project to come on automatically when you decrease the throttle by +10 speed steps quickly. Increasing the speed will exit coasting back to normal running.

However, pressing F5 will activate coasting on demand to suit your running environment allowing variable speed coasting so changes in speed will not turn it off until you turn it off.

Independent Brake

Press the Independent Brake Function button and your loco will come to a stop at a much shorter distance than if you were to bring the loco to a stop by reducing the speed throttle. Press the function button to release the brake and your loco will move off again. 

Move Off and Stopping Sounds
These are all automatic sounds plus some random sounds programmed into our Custom Sound Project that are activated with the moving off and stopping of the locomotive to add to the realism.and they can be disable using F28.
Prototypical Ditchlight Operation
The front and rear ditch lights can be operated as constant on/off or alternate flashing

And includes all these great features to make your GT46C-ACe Class drive and sound impressive. 
  • EMD 16-710G3C-ES Prime Mover.
  • Automatic Hot or Cold Engine Start.
  • Nathan K Series Horns.
  • Air and Brake Release Sounds when loco moves off and stops including Brake Squeal.
  • When the loco stops after braking the compressor cuts in to fill the reservoir and will turn off when the tanks are full.
  • Speed sensitive Wheel Squeal and Rail Noise when the loco moves off.
  • Full Throttle Drive Hold - Lock the loco speed and control the sound independently to simulate a heavy loaded or empty train
  • Dynamic Braking - Turn it on then reduce the throttle to active, increase the throttle to deactivate
  • Coasting On Demand
  • Working Independent Brake.
  • Coupling and Release with brake line release
  • Stop & Drive Random Sounds including fans, compressor, rail noise, track wheel squeal, air releases
  • And more (See below for full list)
  • Prototypical Ditchlight operation. Constant on or Alternate Flashing on both front and rear ditch lights.
  • Low beam/High beam Headlight.
  • Motor settings and sound volumes tuned to specifically suit the Auscision GT46C-ACe Class Locomotive Model.
  • Slow Speed Motor Performance
  • Full 28 function button remapping to suit your personal requirements
  • Individual master sound volumes can be adjusted by the user to suit personal requirements.
  • DCC Solutions High Performance Speaker delivering impressive sound.

Standard DCC Installation and Light Modification: ESU LokPilot Non sound decoder with ditchlight modification upgrade

Premium Sound Installation and Light Modification ESU V4.0 sound decoder with our custom EMD 16-710G3C-ES  sound project and ditchlight modification upgrade.

Standard Sound Installation: ESU SELECT Diesel Sound Decoder, TCS WOW Diesel Sound Decoder or Soundtraxx Econami Sound Decoder with factory generic EMD 710 Sounds.

Here is the selection of sound and function labels using the ESU V4.0 Sound Decoder


Premium Sound Installation and Light Modification

with ESU Full Throttle Drive Hold Feature

Function                      Description
      0  (HEADLIGHT)         Directional Headlights

      1                             Full Throttle Drive Hold

      2  (HORN)                 Long Horn

      3                             Coupling (Reverse) /Uncoupling (Forward)

      4                             Dynamic Brakes

      5                             Coasting on Demand

      6                             Independent Brake

      7                             Shunting Mode/Reduces Speed 50%               

      8                             Prime Mover Cold/Hot Start Up/Shut Down

      9                             Front Ditch Lights On/Off

    10                             Rear Ditch Lights On/Off

    11                             Front Ditch Lights Alternate Flashing 

    12                             Rear Ditch Lights Alternate Flashing

    13                             Directional Ditch Lights

    14                             Short Horn

Function                      Description
    15                             Fan   

    16                             EMD Air Compressor

    17                             Brake Set/Release

    18                             Wheel Flange Squeal

    19                             Reserved

    20                             Volume Control (+/-) Double Key Press

    21                             Volume Fader - Reduces Sound 50%

    22                             High Beam Headlight

    23                             Cab Door Open/Close

    24                             Sanding Valve

    25                             Spitter Valves

    26                             Short Air Release

    27                             Run Notch 8

    28                             Disable Move Off and Stopping Sounds

Note: The above functions are for the LokSound V4.0 Decoder programmed with DCC Solutions Custom Sound Project. The functions and sounds will be different for Alternate Sound Decoders. To learn how to use these functions see the Info & Help page. All functions can be reprogrammed to suit your own personal requirements.