Manual KeerPlus3 │ version 2 – 2019
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Detection
The switching outputs can also be used for a busy reporting module for control via software.
As you can see on the bottom of the module on the picture, the black conductor (DCC-B) goes to the
DR4088LN busy reporting module. That can be any other busy reporting module on the market. This is
independent of the DCC connection as written in section 3.2. This is necessary for the operation of the
module itself.
However, what is important is that the other conductor (DCC-A on the diagram) is brought to terminal 9
on the KeerPlus3. The reason that it should be the other polarity if the person you offer on the busy
reporting module is because the busy reporting module in this case does not feed the section as normal,
but only detects it.
You connect this dcc polarity to the terminal 9 with a carbon resistor with the value 10 kOhm (10,000
Ohm). Only this value will generate a detection on your busy reporting module. The resistor can
optionally be ordered with the KeerPlus3 in our webshop. You then bring the terminals 10/11/12 (S1 / S2
/ S3, respectively) with a wire to one of the outputs on the busy reporting module. Incidentally, it is not
mandatory to use all 3 detectors, this has no influence whatsoever on the operation of the KeerPlus3. The
outputs are electrically separated from the electronics on the module.
