Owner's manual

GND Ground (0VDC)
GPO +5VDC at 20 mA
Figure 13: General Purpose Output
WARNING If connecting a relay, be sure that it is fully clamped using
a diode and capacitor in order to absorb any electro-motive force (EMF)
which will be generated.
2.7 Dallas 1-Wire Bridge
In addition to the six general purpose outputs the LK204-25-USB offers a standard Dallas One-Wire
bridge, to allow for an aditional thirty two 1-wire devices to be connected to the display.
Matrix Orbital LK204-25-USB 12