How to make the Ethernet to Serial communication cable for the Voltronic Axpert RCT solar inverter

Voltronic Power Technology Corp
Axpert 5K MK2
Axpert VM III 3K
Axpert MK4 5.6K
RCT-AXPERT MX2 TWIN 8K48V
RCT-AXPERT MX2 TWIN 11K48V
RCT-AXPERT KING MK2 5K48V

[@user_foxnick]

What type of the exchange protocol is here? Modbus RTU, CAN bus or just COM on RS-232?

[@abusam1]

thank you for the great demo, how did you figure out the inverter RJ45 pins map, if no documentation is available? I tried to test pins with multimeter randomly but I could not figure it out

[@bokooo3129]

thank you very much

[@gfljs2100]

Commented so no one can say first