One of the reasons that I insist that all PoE cables and PoE capable switches are coloured/labelled separately from everything else where I work. I use red cables throughout the school I work just for PoE. Nobody touches the red cables, and there's no "extending" them or "replacing" them or "moving" them or anything else. Outside the other end of a suitable PoE-sucking device, on it's unpowered daisychained port, sure we just chop and change and crimp Ethernet like email@example.com wrote:I have such a cable + PSU combo on my workbench which I use to power up ALIX boards that I use. Now a different colour from the others!
I tried this with an led/resistor on the tx pin but to no avail. The tx pin never even went high. In addition the SoC became extremely hot, which makes sense considering that the bench supply indicated it was sinking more than two amps.hippy wrote: It could be worth removing RG2, providing 3.32V to the GPIO power pins from a Bench Supply and seeing if anything good happens. It really depends on if you've totalled the regulator, the SoC, or everything.
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