PiXtend V2 -L- Hardware Manual
The connection shown here with bridges to the DO supplies ("VCC DO") is just one
example. You can work on any of the three "VCC DO" connectors with a different voltage,
if necessary or useful for your application.
Next to "VCC DO" there is a GND connection, which is used when an additional power
supply (e.g. for other voltages) is to be used to supply the digital outputs.
With the illustrated power supply (figure 41), the voltage can still be set exactly to 24.0 V
with a small screwdriver. This should be done before the voltage is applied to PiXtend V2
-L-. To do this, measure the output voltage of the power supply using a voltmeter or
multimeter.
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