Pin 3 and 8 and pin 5 and 7 what about ground pins ? sure there is a tx and rx pin but no ground 😕 ? I too am trying to find the cable pinouts to connect my US 3000 C batteries to my Voltronic inverter , I located a cable on Ebay for this and purchased and received it the next day but it does not work ...
I contacted the seller who sent me instructions on how 🤔 to connect the cable that I was connecting corectly ! Well I then reviewed the the advert and the cable I received the RJ45 is on upside down 😔.