DCEbus is a computer bus standard, originally developed for industrial control computers interfacing to the "real world"[how?]
by the Belgian company Data Applications International.
It is physically based on Eurocard sizes, mechanicals and 31-pin connectors (DIN 41617 similar to the DIN 41612 but simpler), and using its own signalling system, which Eurocard does not define.
Most often these setup was used to control another Intel 8255 on the actual interface card.
The remaining seven pins of the 31-pin DIN connector were used for power and ground signals.