Digitrax DS78V Eight-Servo LocoNet Stationary Decoder for DCC Servo Control

Bring smooth, realistic motion to your layoutwith theDigitrax DS78V— a LocoNet-based stationary decoder built to driveeight 9G-style servosforslow-motion turnout control(or configure it for3-position semaphore operation). It’s a great choice for modelers who want reliable, repeatable servo movement with clean wiring and flexible programming on a LocoNet-equipped DCC railroad.

What the DS78V Does

• Controls8 servo channelsfor 2-position slow-motion turnout operation
• Can be configured to controleight 3-position semaphores
• Designed for use withcompatible LocoNet systems

Why Modelers Choose It

• On-layout remote programmabilityvia LocoNet for convenient setup and changes
• 16 System Routeswith EZ-Route setup for coordinated turnout moves
• Stabilized 5V servo drivefor consistent motion and dependable operation
• Plug-in connectionsmake installation and service simpler

Power & Inputs

• Power input via2mm DC jackorDCC track voltage(10V min to 20V max)
• 16 input linesavailable for control/detection use cases

Helpful Notes

• Scale:Multi-Scale (works anywhere you’re using DCC + LocoNet)
• Ideal for layouts using servos forturnouts, signals, gates, and animated details
• If you’re building out a LocoNet ecosystem, this is a clean way to addservo-based accessory control

Looking for more Digitrax gear?Browse our Digitrax selection here: Digitrax DCC Decoders, Sound & Accessories.

Frequently Asked Questions

What is the Digitrax DS78V used for?

The Digitrax DS78V is a LocoNet stationary decoder designed to control up to eight servos on a DCC model railroad. It’s commonly used for slow-motion turnout control, semaphore signals, and other animated layout accessories.

Does the DS78V work with all DCC systems?

The DS78V is designed for layouts usingLocoNet. It works with Digitrax command stations and other systems that fully support LocoNet communication.

What type of servos does the DS78V support?

The DS78V is intended for use with standard hobby-style micro servos (commonly 9g servos). These are widely available and ideal for slow, realistic turnout motion.

Can the DS78V control more than just turnouts?

Yes. In addition to turnout control, the DS78V can be configured for three-position semaphore signals, gates, and other animated accessories that benefit from precise servo movement.

How is the DS78V powered?

The decoder can be powered either through a 2mm DC power jack or directly from DCC track voltage. It provides a stabilized 5V output for consistent servo operation.

Is programming required to use the DS78V?

Basic programming is required, but the DS78V supports on-layout remote programming via LocoNet. This makes setup and adjustment straightforward without removing the decoder from the layout.

What scales can use the DS78V?

The DS78V is scale-agnostic. It works equally well for HO, N, O, and other scales as long as you’re using DCC and compatible servos.