Have a look at the User Instructions if you are unsure where to use this unit.
A Diode Matrix can be used to control multiple points, multiple signals, or multiple tracks.
The PM111 Route Selector can switch 8 Point Sets and can have 8 route switches. The board is 139 x 64 mm with fixing holes in each corner.
It comes complete with 4 10mm spacers and 4 20mm self tapping screws, also 50 x 1N4004 diodes. Each diode will handle up to 400v at 1 Amp.
It is recommended that you use our ‘Titan’ Capacitor Discharge Unit (CDU) as this can handle in excess of 8 point sets at one time.
 
A Diode Matrix is simply a set of Diodes placed in an order between a switch and a set of Points. You will remember that a diode only allows current to pass in one direction. So we can use this ability to set a number of points to change to create a path for the train to travel, all from one switch. As you will have in certain cases more than one switch connected to a point motor, the diode stops the current flowing to a point set that you do not need at that point in time.