PiXtend eIO Hardware Manual
Similarly, the potential equalization between several power supplies (GND connection
between all power supplies, which supply devices on the bus) must not be omitted!
Summary:
•
Make the conductor cross section for the supply connections larger in case of doubt
(we recommend 0.75 or 1.00 mm²)
•
Separate wiring of each module from the supply point / ground point
•
Supply of the digital outputs also with two lines and provided with external fuse (see
also page 94 and following)
•
Connect GNDs of all power supplies together (central ground point)
•
Separate GND line for supply - independent of the RS485 lines
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