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WFD-27 5A Wi-Fi/DCC Trackside Command Station/Booster

WFD-27 5A Wi-Fi/DCC Trackside Command Station/Booster

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The WFD-27 along with a phone or tablet is a complete 5A Wi-Fi DCC solution!
You can install this Wi-Fi/DCC Command Station/Booster on your layout to provide bipolar DCC encoded power to your track or layout accessories. You can control trains from your tablet or smart phone running one of the WiThrottle Apps such as Engine Driver for Android, WiThrottle for Apple or the TCS UWT-100. Commands will be passed on to a set of locomotives or accessories equipped with DCC decoders. Each locomotive will be addressed separately and be under independent control. The WFD-27 module may receive commands from more than one tablet, addressing the same or different locomotives. A roster of up to 100 locomotives with Function Labelling, or 200 accessories can be stored in the WFD-27 so that you can select the locomotive you want to drive from the WiThrottle app. The WFD-27 also provides its own in-built Web Throttle that can be used to drive trains from any phone, table or computer with a browser such as Safari, Edge or Chrome. You can also build panels with track plans including turnouts, lights, signals, track etc. and control DCC accessories from there.

The WFD-27 also supports a programming track so that you can read and write DCC configuration variables in DCC Service Mode. You can program operational mode configuration variables on the main track.

Read the Quick Start Document

Read the Full Manual

WiThrottle is the name of a communication protocol authored by Brett Hoffman and also of an IOS app written by Brett Hoffman. Engine Driver is the name of an Android app written by M. Steve Todd.
SKU :WFD-27 Categories : Fixed Wi-Fi/DCC Interfaces,Mobile Controllers Tag :Wifi Control

WFD-27 5A Wi-Fi/DCC Trackside Command Station/Booster

This module is a complete Wi-Fi/DCC Command Station/Booster and can be easily installed on any scale model railroad to provide Wi-Fi control of DCC Locomotives and Accessories. It is compatible with NMRA compliant decoders.

You can drive your trains from your tablet or smart phone running one of the WiThrottle Apps such as Engine Driver for Android, WiThrottle for Apple or the TCS UWT-100.

You can enter up to 100 locomotives in the roster with function labelling, then select a loco from the roster to drive. Alternatively you can just enter a DCC address of an unrostered loco.

For example you might have a collection of locomotives HO or N scale that you have bought with DCC deccoders already installed or you might have installed some yourself. You can mount this module on your layout and connect its Track output to your track and/or accessory DCC controllers. You can then enter all your locomotives (up to 16) into the roster contained within the module. The WFD-27 module will behave as a DCC command/station booster compatible with any NMRA decoder.

Up to 32 named accessories may be entered and selected via the phone app or you can simply enter the accessory address. You can build Panels with track, turnouts, lamps signals etc. in a schematic track plan. You 200 use these to operate DCC accessories on your layout. You can also create up to 50 Routes each with as many as 10 turnouts and operate these from buttons on your panels.

The WFD-27 operates either in direct mode or home-net mode. Up to four throttles may be connected in direct mode and up to six in home-net mode. In home-net mode you can leave your phone connected to your home Wi-Fi network while you operate trains.

Main Track and Program Track outputs are provided. Connect the Track outputs to your main track and the Program output to your DCC programming track. On the programming track you can program and read DCC Configuration variables including the DCC Address in DCC service Mode. On the Main Track you can program DCC Configuration variables in operational mode but not read them.

Read about Wi-Fi/DCC

Read the Quick Start Document

15 Volt mains power adapter sold separately.

WFD-27 5A Wi-Fi/DCC Trackside Command Station/Booster

Preliminary Specification - Subject to change until product is released for sale.


Length: 90mm (3.54") Width: 60mm (2.36") Maximum Height: 14mm (0.55")

Functions and Modes of Operation

Installs on your layout to provide direct Wi-Fi control and supply of Bipolar DCC to Main and Programming Tracks.

Output Ratings

Maximum Continuous Current Main Track: 5.0 Amp. Maximum Continuous Current Programming Track: 1.0 Amp.

Power Supply Options

(1) 12 to 18 Volts DC independent power, wired to screw teminals on unit. This unit does not operate using AC. Input must be connected with correct polarity but module is protected against power reversal.
(3) Plug-in 15V mains adapter connected directly to unit - available separately.


Four M3 mounting holes for use with screws, nuts and spacers, or suitable wood screws with spacers. Mounting kit provided.


One pair of screw terminal outputs to connect bipolar DCC power to main track.
One pair of screw terminal outputs to connect bipolar DCC power to programming track.
Two screw terminal connections for DC power input, (acts as power output when barrel connector used).
Barrel connector for alternative 15V DC Mains Adapter (Sold Separately).

LED Indicators

Red LED indcates that power is present at the unit.
Green LED flashes when a hand-held device communicates via Wi-Fi.
Blue LED indicates DCC supplied on main track. Blue LED flashes when overload shutdown occurs.

Mains Adapter Details

The power adapter must supply between 12 and 18 Volts DC (15V recommended) with a Barrel Plug (2.5mm I.D. x 5.5mm O.D. x 9.5mm). The center pin must be positive. A recommended power adaptor is available from WifiTrax: http://www.wifitrax.com/products/product-PA15-43-1-detail.html


The module shuts down automatically when the current on its track outputs exceeds approximately 6A or when a short of the main track occurs. Power is restored automatically when the short is removed.
The output DCC driver to the programming track is protected against shorts.
Protection is provided against accidental reversal of the power input to the module.

Read the Quick Start Document