Hypertherm board pinout for RS485 extension board

Hi,
I would like to check if you know if Hypertherm RS485 board is just a converter from RS232 from the mainboard to RS485 (RS422 to be more specific) for running over longer distances?

Does anyone know the pinout of the connector J11 from the main board of Hypertherm 45XP?

The pinout is in the schematic

www.hypertherm.com/Download?fileId=HYP174752&zip=False

Thank you very much, in the document you have attached I found schematic

It looks like the board sends RS232-TTL 3.3V signal and the extension board and the board coverts it to RS485 for long distance communication.

I'm planning to connect one of the modules I have found from some Arduino projects and see if it will work with my ModBus software.



I'm puzzled by ENABLED pin - I'm guessing that pin 5 is either the voltage going back to the main board to tell it that the extension is in place or the other option - the main board activates / deactivates the extension somehow.

More reading will be required.

Am I right saying that with RS485 / ModBus data LinuxCNC /PlasmaCNC can act as it would have THC?

There is no pin 5 there, that is the IC.
And having Rs485 does not replace THC, they are not the same thing, so as you said more reading.

What’s the reason you don’t just buy hypertherms module?