Some do and some don't.
Compu 1024EC uses DMX-512
NSI has dimmers that use DMX-512 and other dimmers the use MultiPlex or MPX
Do not for any reason in any way connect your Compu into the MPX port.. you will burn the DMX chip in the Compu 1024, and it will no longer work.
Some NSI dimmers have both MPX and DMX. So it depends on your dimmers.