The MK3-USB or Smart dongle goes between the VE. Bus port on the inverter/charger, and either USB or Bluetooth connection on your computer. You will also need a straight RJ45 UTP cable.
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Red wires represent positive terminals, while black or blue wires denote negative terminals. This color distinction aids even those with minimal technical expertise in conducting accurate checks.
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How to connect solar panels together in parallel: Join the positive (+) cables of all the panels into a single one, then do the same with all the negative (-) cables. For this, you will need branch connectors or a combiner box.
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This solar panel wiring guide explains different methods and includes practical wiring diagrams and actual examples of ways to design a reliable and efficient solar power system.
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