Wallboard display - reverse engineering

So I got a wallboard display, power adapter, a moxa eth-rs232 converter and cable for free :-) No software, driver or whatsoever further included.

What to do with it?

Well mostly for the sake of investigation and making it work together gets me satisfied !

The final result

To not waste your time. The final result is

An online page where you can send text and effect to the wallboard.

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