Digitrax DH126P Series 6 DCC Decoder - NMRA 9-pin JST to NEM652 8-pin Wired Plug

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Digitrax DH126P Series 6 DCC Decoder - NMRA 9-pin JST to NEM652 8-pin Wired Plug
  • .672” x 1.074” x .259”
    17.08mm x 27.28mm x 6.6mm
  • Digitrax Easy Connect 9 Pin Harness
  • 1.5 Amp/2 Amp Peak Current Rating
  • 2 FX3 Functions, 0.5 Amp Total Function Current Rating

Series 6 Decoder Features

  • 2 Digit and 4 Digit Addressing
  • Basic, Advanced & UniVersal Consisting
  • SuperSonic motor drive for silent operation
  • Scaleable Speed Stabilization (Back EMF) for smooth operation.
  • Direct mode programming
  • Decoder Reset CV with or without speed table reset
  • Transponder Equipped ready for transponding on your Layout
  • Motor Isolation Protection helps prevent damage to your decoder
  • DCC Compatible
  • FCC Part 15, Class B RFI compliant
  • Digitrax “No Worries” Warranty

Additional Series 6 Features

  • Compatible with Digitrax PX series Power Xtenders to keep locos and sound running in the presence of dirty/poor track work.

SoundFX Series 6 Features

  • Sound decoders available with either 8 bit standard or 16 bit premium sound.
  • Sound decoders configured for 8 Ohm speakers.
  • Allows for longer sound fragments.
  • Available in either standard 3 or premium 4 voice versions.
  • Auto CV configuration by sound projects
  • Scaleable Speed Stabilization (BEMF) optimized for sound operation.

FX3 Function outputs for prototypical lighting effects and on/off control:

  • Constant Brightness Lighting with directional or independent control.
  • Realistic Effects like Ditch lights, Mars lights, strobes, and many more
  • FX3 & Standard Function Qualifiers operate functions based on direction,
  • F0 on or off, direction and F0, and whether loco is moving.
  • FX3 effects optimized for selectable LED or lamp operation
  • Configurable FX3 Pulse Function available on all function outputs.
  • Function Remapping for custom function setup.
  • Master Light Switch turns off all lights & functions with one keystroke.
  • Advanced Consist Function Controls

Digitrax LocoMotion® System-Your locomotives look like the real thing.

  • The Digitrax LocoMotion System makes them run like the real thing, too!
  • Torque Compensation for smooth as silk silent operation.
  • 128 Speed Step operation (14 or 28 steps can also be used).
  • Momentum with acceleration and deceleration.
  • Normal Direction of Travel is user selectable.
  • Switching Speed feature for easier and faster access to yard speeds.
  • 3 Step Speed Tables set start, mid and max voltage for custom control.
  • 28 Step Speed Tables with 256 level resolution for precise control.

Program CVs using any Digitrax Compatible Control system without having to buy any extra equipment.

Digitrax Real FX3

  • Turn functions on and off. 
  • Head lights and tail lights are automatically reversing unless you make them independent. 
  • All function outputs have FX generators for prototypical lighting effects and have qualifiers for FX effects and qualifiers for standard on/off functions.
  • All Digitrax Series 3 decoders have FX3type functions.
  • FX3 decoders offer full function mapping so you can choose which function (F0-F12) controls each function lead.
  • FX3 decoders offer master light switch capability.
  • FX3decoders offer qualifiers for FX function operation qualified by one of the following:  the loco's direction of travel, whether F0 is on or off, loco direction and F0, or whether the loco is moving or not. These qualifiers are also available on function outputs that are used as standard on/off functions.

Motor Isolation Note:  FX3 decoders have motor isolation protection. If the decoder senses that the motor is not isolated, it will not run the motor. In this case, you will be able to control the loco’s functions but the motor will not work.

Here is an explantion of how the CVs that control FX3 effects work.  Most modern Digitrax systems do not use hexadecimal format but it is provided here in case you need it for older systems.

CV 49-52, CV113-116, CV62 & 63: Digitrax Real FX3 Special Light Effects

Decoders with FX3 features have 8 user configurable, independent special effects generators.  These are set up by programming CV values as described below.  If your decoder is not a “series 3” decoder, please check the spec sheet to determine which type of functions it supports.

FX3 functions incorporate FX generators with additional dynamic and static qualifiers.  FX3 functions are fully remappable so they can be controlled by any function key on your system.  A master light switch can be set up to turn off all lights on a locomotive. Functions associated with advanced consists can be controlled, too.


Decoder Specifications: 
  • Size: .672 x 1.074 x .259 (17.08mm x 27.28mm x 6.6mm)
  • Connection: 9-Pin JST to 8-Pin NMRA (NEM652) - 3.25"
  • Motor Rating: 1.5 Amp
  • Functions: (2) 150mA outputs (500mA Total)
  • BEMF: No
  • Protocol: NMRA DCC Compliant (Multi-Protocol Options Available)
  • Transponding: Digitrax
  • Additional Features: Fwd and Rev Trim Adjustment, PX112-2 Quick Connection
  • Manufacturers Website: Digitrax

.672” x 1.074” x .259” (17.08mm x 27.28mm x 6.6mm)
DCC Medium Plug Long Harness (read more)Function Outputs
2 (read more)Function Type
FX3 (read more)Features
Series 6 (read more)For Use With
Current Rating-Functions
0.5 Amps total all functions
Original Release Date
Current Rating
1.5/2.0 Amps Max
No Worries Warranty (read more)

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