I have some things to understand...
I can see (first picture) on the RJ45 connector, there are no 3 but 6 wires. 7 and 6 are the same pair, 3-6 and 4-5 too, so data lines are always twisted with the ground.
And now (second picture), if I well understand, pin 6 and 7 are not the same on the Unipi, one for write (pin7) and one for read (pin6). Is that true? So am I to connect sensors to the pin 6 or 7 only or to 6 and 7 together when I'm not using a HUB but weldings ?
Olso, is your Hub active (mean with DS chips inside) ?
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If you are here, thank for your time to read my posts.