Thank you Florian for your answer.
Unfortunately I do not have access to the module at the moment, but as far as I remember the value of the two added resistors is 100 kohm.
I'll take a picture of the board as soon as I can.
By the way : I call these two resistors "added resistors" because obviously they were not part of the initial electronic design of the module, since they are soldered to the soldering side of the board, as opposed to the component side. And this is a brand new module, it was not modified by anyone. Obviously the two resistors have been put there at the factory.
I'll have to look at the component side of my two A-141-1 modules side-by-side to see if all other resistors (and other components) have the same values. Then
I'll report here whatever I find out.
Have a nice day,
Thomas
(komyta)