RS485 port

A purpose built USB RS485 cable can be plugged into the RS485 port located on the inside the inverter. This is an RS485 cable with a specific RJ45 pinout that can be purchased in our online store. This inverter uses a different cable from the other Luxpower units, that is why the cable for this unit is sold as a "MUST" cable. It may not be sold as a Luxpower cable on our store, but that is the cable needed for this inverter.

If you buy any random USB RS485 RJ45 cable on Amazon, Ebay, Takealot, etc. which doesn't specifically state that it supports the inverter, it will most likely not work. You can read more about the communication chips we recommend using here, and you will find the pin configuration below:

Pin 1	RS485B
Pin 2	RS485A
Pin 3	-
Pin 4	-
Pin 5	-
Pin 6	-
Pin 7	-
Pin 8	-

The labelling of the RS485 monitoring port is sometimes not intuitive. Please see the list below for the correct port.

In many cases, the unit can only communicate with one device at a time. That means that having a cabled connection to the unit will require unplugging the dongle in order to get SolarAssistant to communicate with the unit directly.

Steps in SolarAssistant

On the SolarAssistant configuration page, select "Luxpower" as your inverter model.

Select the USB port where your inverter is connected. If you have multiple inverters, you need to multi-select multiple USB ports.

Click connect:

Parallel installations

With Luxpower inverters you will need to connect each inverter with its own cable.