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Appendix II: Connecting Transformer &
Horn/Bell Controllers To Your Track
Connecting the Transformer to Your Track
The chart on the next page shows the correct wire attachments from the
transformer to the track. References to left or right terminals are when viewed
from the back of the transformer.
Some older transformers send a negative DC signal when the horn button is
pressed, instead of the positive DC signal QS-2+ requires. For these
transformers, the wires to the inside and outside tracks are switched compared
to the instructions that came with the transformer.
Your transformer has to have a horn button to send commands to QS-2+. Some
transformers, like the Lionel Type V or Z, do not have horn buttons and will
need a QSI SideKick II or other accessory horn and/or bell buttons to operate
QSI features. The Lionel MW is not recommended for use with QS-2+ because
the MW direction button will not always work properly and the horn button
does not respond the same at different throttle settings.
The last column in the chart lists the type of transformer and the choice to
make in RESET Position #19, if you wish to assign QS-2+ to this specific
transformer. "Standard" transformers are variable amplitude transformers, like
the ZW. The new chopped waveform transformers are called "Electronic"
transformers. A few of the new electronic transformers provide a smooth
waveform, and these are called "Smooth Electronic."
Using QSI systems with transformers not recommended or not listed here may
void the QSI warranty.
Note: If you are in Europe, QS-2+ is designed to work at 50hz, but not below
49hz or above 51hz.
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