DCS Command System User’s Guide
Introduction To DCS
The Track Interface Unit
Also known as the TIU, the Track Interface Unit is the brains behind the DCS system.
Connected between the transformer and the track, the TIU receives signals from the
DCS remote control and relays those signals to each train you are controlling via the rails.
The type of signal relayed to the train depends on the operating mode at the time. If
operating conventionally, the TIU will raise and lower track voltage to control engine
speed. If operating in command mode, the TIU will send a digital signal to each train
you are controlling via the track rails.
This digital signal is very powerful and contains a lot of information much like the digital
signals used in today’s high tech products. These digital signals are what allow DCS to
perform the hundreds of functions designed into the system.
8
ATTENTION
TIU contains internal
fuses. If there is no
output, open the case (6 Screws)
and check the fuse.
More information on Page 133.
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