I operate an MP2 on a Pylontech US3000C. The whole thing is managed by a Venus OS 3.12 running on a Raspberry Pie 3. Now I would like to expand the system with an MPPT150/35, which is also to be integrated via Venus OS. Now my question: how do I connect the VE.Direct connector (which appears to be a simple RS232 interface) to the rest of the system? CAN communication to the battery is available, as well as VE.BUS ports on the MP2. Which adapter is needed? I have not found any answers in Victron's documentation.