O Wifi TIU module control through DCS App Only

DCS is a system for controlling your entire layout —
multiple sound-equipped engines, switches, and accessories —
from one or more smart devices with the DCS App installed. DCS is
compatible with all M.T.H. Proto-Sound 2.0- or 3.0- equipped
locomotives. In O gauge, it is also compatible with locomotives
equipped with Lionel® TMCC® and Legacy™, as
well as conventional AC-powered engines.

The full DCS Digital Command System is an all-encompasing
network of components that brings true interactive wireless control to
a model railroad. Users utilize their own smart device — iOS
or Android — and an intutive app to run multiple tracks,
hundreds of trains and control switches and accessories. Bi-directional
communication between locomotives and the system’s WTIU WiFi
Track Interface Unit makes adding and programming locomotives simple
and easy. No more ID numbers to remember and no complex icons to
decipher. It’s fast, it’s easy and it’s
fun!

The all-new WTIU combines a wifi module and a track interface
unit into one unit. Featuring four channels, the new WTIU can now
control conventional DC locomotives by varying DC power to the track,
allowing the user to control command and non-command equipped
locomotives on the same track at the same time. The WTIU sets up in
seconds and doesn’t require a home WiFi system to operate. It
can control accessories and switches when connected to the separately
sold AIU Accessory Interface Unit and can receive commands from an
unlimited number of smart devices.

WHAT IS COMMAND CONTROL?

In conventional model train operation, an AC or DC transformer
varies track voltage to adjust engine speed and direction. Command
systems such as DCS, however, put a constant voltage on the track
(around 18 volts for DCS) and vary speed by telling each engine how
much of that voltage to use.

Unlike conventional control, command control allows
different engines to do different things, even when they are on the
same track — like run at different speeds, go in
different directions, or make different sounds. You can even combine
several engines into a “lashup,” working together
under a single throttle.

How it works: In the DCS system, commands
such as speed, direction, and sound control are sent as radio signals
from a smart device to a receiver, which translates those signals into
digital information. That digital signal is sent through the rails and
picked up only by the appropriate engine — telling it to go,
for example, 37 miles per hour, blow the whistle, or smoke more heavily.

SIMPLE, EASY SETUP!

The DCS System is simple to hook up. You’ll have
trains running in just minutes using the handheld or the App!

Each WTIU Fixed Input Channel can handle either AC or DC
power. You can even mix and run one channel with DC power and the other
with AC. This makes it easy to run M.T.H. HO Proto-Sound 3.0 equipped
trains using the same WTIU you use to run all other M.T.H. Proto-Sound
2.0 or later locomotives.

Each WTIU Variable Input Channels accept AC or DC power from
virtually all AC or DC power supplies, including all M.T.H. AC
transformers like the Z-4000, Z-1000, Z-750 and Z-500.

Once you’ve got power into the TIU, run the outbound
channels directly to the track or to a terminal block for larger
layouts. We recommend wiring the channels to the track in 15’
sections to best distribute power and the DCS digital signal. Full
details are explained in the DCS User Guide.