

After you have accomplished step 1 we can continue with this step which will
finish the conversion. I have tried to make this as simple as possible, but
if you cannot understand what I have written PLEASE DO NOT ATTEMPT THIS
CONVERSION. Even though my technical writing skills might be lacking, some-
one with enough electronics knowledge will be able to understand what I
am getting at.


1) UNPLUG THE MINI CONTROLLER

2) Remove the screws that hold the mini controller case together and
   open the case. Remove the circuit board and set on your work bench.
   Discard the buttons.

3) Remove the clear plastic tape from the circuit board which will also
   remove the metal bubble switches. Discard

4) Examine the circuit board carefully. You will notice that the traces
   that make up the OFF portion of the switches all have one common point
   and the ON portion of the switches have one common point. See FIG01.BMP
   For sake of disscusion we will call these common points OFF COMMON and
   ON COMMON. These two common points are not connected together. You will
   also see that switch one OFF and ON center points are also connected
   together, as are switch two through four. we shall call these ONE COMMON
   TWO COMMON, THREE COMMON, and FOUR COMMON. To turn on switch one you
   would connect ONE COMMON to ON COMMON. TO turn on switch three you
   would connect THREE COMMON to ON COMMON. If you wanted to turn off
   switch two you would connect TWO COMMON to OFF COMMON. Since we have
   allready converted this controller to momentary operation, connecting
   FOUR COMMON to OFF COMMON would send an OFF signal, when we unconnected
   those two points a ON signal would be sent.

5) If you will be using this interface for a motion sensor you will most
   likely have normally closed contacts (fail safe). Some other applications
   may have normally open contacts. Lets assume your application has
   normally closed contacts. Locate the small holes below the OFF switch
   contacts. Strip about 1/4 inch of insulation from some 22 guage wire
   and insert it into one of the holes from the component side of the
   controller. Solder the exposed end of the wire to one of the OFF COMMON
   pads. Locate the small holes near the ON switch contacts. Solder one
   piece of wire to each of the contacts (ONE COMMON, TWO COMMON, THREE
   COMMON, & FOUR COMMON, All on and bright dim are not used)
  
6) If you need your interface to handle normally open contacts solder
   your wires to ONE COMMON, TWO COMMON, THREE COMMON, FOUR COMMON, AND
   ON COMMON.

7) Put the controller back together and put the wires through the
   switch holes in the case.

8) USE A MULTIMETER AND CHECK YOUR WORK. THE VOLTAGE BETWEEN ANY OF
   THE WIRES SHOULD BE BELOW 12 VOLTS OR SO

9) If all is ok in step 7, take the wire connected to ONE COMMON and
   touch it to the wire connected to OFF COMMON. An X-10 OFF signal
   should be sent. When the wires are taken apart an ON signal will
   be sent. Do the same with TWO THREE AND FOUR COMMON.

10) You should isolate the controller from your motion sensor with a relay
    or some other means. In case of some unfortunate incident or poor
    soldering on your part you dont want 120V AC traveling down some
    20 guage twisted pair wire to your motion sensor. See FIG02.BMP
    for an example on how to isolate the controller from your sensor.
    You will need one relay for each input that you are using. Mount
    the whole mess in some kind of metal box and use some terminal
    strips for a neater appearance.

Let me know how this worked for you

                                   William Scalione
                                   73467,2075
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