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SD-34 / WD-34
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After placing the parts, please double check for correct polarity.
Check the PCB tracks for solder bridges and short circuits created
by accident. This would cause faulty operation or, in the worst
case, damage. You can remove excess solder by putting a clean
soldering tip on the spot. The solder will become liquid again and
flow from the soldering spot to the soldering tip.
4. Operation overview
Driving the decoder
The decoder´s outputs are operated via accessory decoder commands
in DCC or Motorola format, sent from the central unit to one of the four
accessory decoder´s addresses. The decoder automatically recognizes
the commands´data format. It is possible to switch the outputs via
mixed DCC and Motorola commands as well as to operate one output
alternately in DCC and Motorola format.
Use
The point decoder WD-34 activates up to four connected points or up
to eight other solenoid accessories. Application areas are coil driven
points, semaphore type signals and decouplers.
The accessory decoder SD-34 has four integrated change-over relays to
operate connected accessories. Application areas are lightings of all
kind, light signals and motor-run points with tape shut-off.
Programming
Using a DCC central unit the decoder´s features can be defined by
programming the configuration variables (CV). It is also possible to set the
address by using a programming jumper.
When using a Motorola central unit the decoder address has to be set
with a programming jumper. Changing the other decoder´s features is
neither necessary nor possible in layouts run in Motorola format only.
English
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