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Powerline 48 Class (2012)  DCC Sound Installation.

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

About the NSWGR 48 Class Locomotive

The 48 Class diesel electric locomotives were built by A.E Goodwin, Auburn for the NSW Government Railways in four production batches (or mark versions)  between September 1959 and October 1970. They were built under the ALCO DL531 model with the largest number of 165 units built for NSW, 44 units built for the South Australian Government Railways 830 Class which operated services throughout SA on the narrow, standard and broad gauge lines. A further 3 narrow gauge examples were purchased by Silverton Rail for use on the Silverton Tramway Line around Broken Hill.

There were four versions built for the NSWGR were:

  • Mark 1: 4801 – 4845 (September. 1959 to March 1962)
  • Mark 2: 4846 – 4885 (June 1964 to September 1965)
  • Mark 3: 4886 - 48125 (March 1966 to July 1968)
  • Mark 4: 48126 – 48165 (January 1969 to October 1970)

The NSWGR 48 Class was ordered to commence the conversion of branch lines to dieselisation and to see if branch line operating costs could be reduced. They became an immediate success and by the early 1960's the heaviest trains in NSW were being hauled by multiply 48 class locomotives. They later went on to become the backbone to the NSW Fleet.

As well as branch lines they operated both mainline and metropolitan services and were seen on every line in the state. Aside from a couple written off after accidents in the mid-1980s, withdrawals didn't commence until August 1994. Others have been withdrawn since and as at January 2014, 66 units still remained in service as an extremely simple and reliable locomotive capable of performing any duty. Of the other 99 units, 7 have been preserved, 29 stored, 63 scrapped.

DCC with Sound and Light Modifications

In 2012, Powerline released yet another version of their popular NSW 48 Class Locomotive.It was supplied with a very basic "bonus" DCC decoder and an on board manual DC/DCC switch set to DC. To operate it on DCC the 48's body has to be removed and the switch changed to DCC. The decoder is very basis, unreliable and it is highly recommended to be replaced. It also came with a loud and fast spinning fan, very bright cab lights and crew painted completely green, face and all. However, the big issue with this model was that the body would not separate from the chassis without causing considerable and costly damage frustrating many owners. Here at DCC Solutions we have mastered the art of removing the body with no damage.

For this installation we recommend the ESU LokSound Range of 8 Pin decoders, such as the LokSound V4.0 (Sound), LokSound Select (Sound) or 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 also supply decoders for the DIY Installers. Be Aware!  this Model is not DCC ready with an 8 pin socket and the installation of a decoder requires the removal of the factory a complete board and complete rewire of the entire locomotive.

We have tweaked the motor control of the ESU decoder to provide super slow smooth speeds at steps 1-8 of 128 (Speed step 1 of 28) which is perfect for shunting operations allowing the loco to move ever so slowly towards its rolling stock. Also for those wanting the locomotive to move off slowly and build up speed like the prototype. You will be impressed with the smooth slow speed motor control.

The model's space inside is limited so some chassis milling was required for a speaker with an enclosure if installing sound. But not any more, we now have a custom speaker enclosure and with a high quality cube speaker fits perfectly in the chassis of the 48 Class producing an amazing sound

News Update: (June 2014)

White Marker Lights don't work!

The White Maker Lights do not operate. Models 4803, 4865, 4894 with single maker lights

After extensive examinations and testing here at DCC Solutions we have discovered it appears to be a factory production fault with all the single maker versions of the Powerline 48 Class models. The cause of the problem lies with the light transfer lenses in the body of the model.

Here at DCC Solutions we have developed a modification to the PCB light boards to rectify the issue enabling both the red and white markers to work with the single marker for these models

We offer a light modification for this 48 Class Model to separate the lights for a more prototypical operation.
In addition to rectifying the issue of the white marker lights not working we can now also modify the light boards to separate the marker lights for individual control as we have done with many other models.

Factory Lighting

1) Front Headlight, White Markers and Rear Red Markers on/off when travelling forward with the headlight button.

2) Rear Headlight, White Markers and Front Red Markers on/off when travelling in reverse with the headlight button.

    Note: White Marker lights don't work on models 4803, 4865 and 4894.

DCC Solutions Lighting

For an upgrade to 6 Function Standard Light Modification we can separate the lights as follows:

1) Front Headlight - on/off directionally with the headlight button

2) Rear Headlight - on/off directionally with the headlight button

3) Front White Markers - on/off with 1 function button

4) Front Red Markers - on/off with 1 function button

5) Rear White Markers - on/off with 1 function button

6) Rear Red Markers - on/off with 1 function button

We have an created a custom sound project for the 48 Class with the sounds of the ALCO 6-251B engine and now with our lighting modifications you can finally own a great sounding Powerline 48 Class with a more prototypical lighting.

The DCC Solutions NSW 48 Class Custom Sound Project - ALCo 6-251B
is packed with sounds and features not found on other sound decoders

Our Custom NSW 48 Class Sound Project now includes these 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
This feature allows you to enter coasting mode whenever you want with a press of a button.Often when coming to a stop, the throttle of a real locomotive is put into Idle and it can coast to a stop. Another situation that occurs is that once a train is up to speed when operating over
rolling countryside, the driver can coast to maintain a certain speed. By pressing the coast function button, the sound drops coasting and remains there. Using the throttle speed control, you can now speed up or slow down the train with the sound remaining in coasting mode.
Press the function button to exit coasting and the sound will exit and return to whatever speed is set when exiting.

Working Brake

Press the Brake Function button and your locomotive will come to a stop at a much shorter distance than if you were to bring it to a stop by reducing the throttle speed. Release the brake and your locomotive will move off again or choose to have it remain stationary when the brake is released.

Random Start-up sequences with Move Off and Stopping Sounds

Now with random start-up sequences including hot or cold engine starts your start up and shut down will not always sound the same. As your locomotive begins to move off you will hear the sounds of brakes releasing with random speed activated wheel squeal, rail noises and other sounds. Some of these sounds are random or speed sensitive that will turn on/off automatically depending on your take off speed. When the locomotive comes to a stop you will hear the squeal of the brakes, air releases and then the compressor will cut in automatically to fill the reservoirs with air until full.

Remastered Horn Sounds
A new remastered NSWGR WABCo A/B Series playable and short blast horn
Coupling and Release with Shunting Mode
Activate coupling or release and your loco will automatically reduce it's speed to allow for for a more realistic coupling or release operation. Once the operation is completed your loco will continue to run at slow speed for a few more seconds before returning to the speed set on your throttle.

And includes all these great features to make your Powerline 48 Class drive and sound impressive
  • ALCO 6-251B Turbo Prime Mover
  • 48 Class Short Blast and Playable Horn. NSWGR WABCo Pneuphonic type A/B airhorns or NSWGR RVB Hurricane 5 chime airhorns
  • Random Start-up sequences including Automatic Hot or Cold Engine Start.
  • 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
  • Coasting On Demand
  • Working Brake Function
  • Directional Coupling and Release with brake line release  plus auto active shunting mode to reduce the speed of the loco for shunting
  • Stop & Drive Random Sounds including fans, compressor, rail noise, track wheel squeal, air releases
  • Wheel Squeal
  • Guard's Whistle
  • Modified Lighting Options for more prototypical light operation.
  • Low beam/High beam Headlights
  • And more (See function mapping list below)
  • Motor settings and sound volumes tuned to specifically suit the Powerline 48 Class Locomotive Model.
  • Individual sounds slots and the master sound volumes can be adjusted by the user for increased volumes to suit personal requirements.
  • Full function button remapping to suit your personal requirements.
  • This Sound Project is also suitable for other brands of 48 Class Models.


Our DCC sound installation addresses all of these issues:

1. Replace the basic, unreliable "bonus" DCC decoder with the ESU Range of decoders

2. Modify the Single Marker Lights to enable both the White and Red Markers to work.(Excludes Mk4 models)

3. Individual operational control of all 4 Maker Lights

4. Reduce the brightness of the cab light and control it on/off using a function button.

5. Separate the fan, reduce the speed to a more realistic level and control it on/off with the fan sound using a function button,

7. And the crew get a face paint.

Standard DCC Installation: Non sound decoder with no lighting modifications.

Standard Sound Installation: ESU Select decoder with ESU factory generic sound or alternate brand sound decoder . No lighting modifications.

Premium Sound Installation: ESU LokSound V4.0 sound decoder with our Custom ALCO 6-251B Sound Project. No lighting modifications.

Premium Sound Installation and Light Modification: Upgrade to 6 Function lighting outputs with the DCC Solutions Light Modification to separate some lighting to have individual  function control on your DCC controller plus our ESU V4.0 Custom ALCO 6-251B Sound Project

Here is the selection of sound and function labels using the ESU V4.0 sound decoder with 6 Function Lighting Outputs.


Premium Sound Installation and Light Modification

Function                     Description   


      0  (HEADLIGHT)         Directional Headlights/Number Boards Only

      1                             Full Throttle Drive Hold

      2  (HORN)                 NSWGR WABCo A/B Series Playable Horn

      3                             NSWGR WABCo A/B Series Short Blast

      4                             Reserved (Dynamic Brakes in other DCCS Sound Projects)

      5                             Coasting On Demand

      6                             Brake

      7                             Shunting Mode/Reduces Speed 50%               

      8                             Start Up/Shut Down/Mute

      9                             Front White Markers

    10                             Rear Red Markers

    11                             Rear White Markers 

    12                             Front Red Markers

    13                             Directional Marker Lights

    14                             Coupling and Release + Shunting Mode

Function                     Description 

    15                             Fan 

    16                             Air Compressor

    17                             Manual Brake Set/Release On/Off

    18                             Wheel Flange Squeal

    19                             NSWGR Guard's Whistle

    20                             Volume Control (+/-) Double Key Press

    21                             Volume Fader - Reduces Sound 50%

    22                             Headlight High Beam On/Off

    23                             Cab Door Open/Close

    24                             Sanding Valve

    25                             Cab Light

    26                             Short Air Release

    27                             Front Headlight On/Off

    28                             Disable Start Off and Stopping Sounds


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

Options Available

ESU LokSound V4.0 Sound Decoder programmed with DCC Solutions Custom 48 Class Sound Project

ESU LokSound Select Sound Decoder programmed with ESU generic downloadable sound file

ESU LokPilot V4.0 (Non Sound Decoder)

Alternative brands of Sound and Non Sound Decoders of your choice.

DCC Solutions upgraded 6 Function Light Modifications

Supply only Decoders and Speakers for DIY Installations