I recovered the program for this device from old disk, and this week was first time in history I actually inserted the device to my MSX. The reason was that the device has 11 DIP-switches and I had no any sort of manual... so the thing stayed on the garage unused for about 20 years. Now I anyway did some reverse engineering... The device seems to work like new, so I've now uploaded the original software and included also some usage & programming instructions that I wrote.
I've not managed to find any information about this device, so I post here just in case someone has the same problem.
You can download original software + my notes by clicking here.
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The PC version needs extra power adapter, cable to the computer and that mess takes half of the table. This one I just plug in. No extra wires needed and when I type programming voltage ie. 18.2v the output is exactly 18.2v no more or less... Pretty good result after being unused for 20+ years. 
I never saw it before. 
