If you are dealing with PLCs or CNCs, they have nowadays a remote access module: - Fernwartungsmodul.
But we are talking about another module that you need to mount beside (immediately next to) the remote access module: - Montage bitte direkt neben dem Fernwartungsmodul.
Steuerung (D) = Control (E) = Commande (Fr)
They are protecting their sources (their business)..
Yep, I know. I'm quite used to that kind of situation.