Question:

【What is the product model?】:Serial to Ethernet converter USR-TCP232-304
【Where do you purchase the products?】:Amazon
【Is this your first time to use this product? If not how long do you use USR device?】:first time
【What's the firmware version?(You can get firmware version from AT command AT+VER or settings webpage)】:V4018
【How do you connect and configure the USR device?】:Lan 
【What's your application? What do you want to realize?】:I want to extend the rs485 connection of an inverter over network. 
I bought 2 of the TCP232-304 to connect the rs485 signal to the network with one and to read the rs485 signal again from the network with the other. 
Is such a thing even possible?

Answer:

This application is achievable.
After configuring the parameters of serial to Ethernet converter UR-TCP232-304, you can connect the network ports of two USR-TCP232-304 directly through a network cable and establish a TCP connection.
In this way, RS485 devices can be connected for network communication.

For specific setup steps, you can refer to the documentation in this link：

https://www.usriot.com/download/M4/Transparent-transmission-between-USRIOT-Serial%20to%20Ethernet-products.pdf