I understand now - so the only 10bt port will be the dmx-arnet converter port

- all the others will run at 1G, therefore files will still be able to travel between each connected MAC at 1G at the same time as they are receiving ArtNet data....

therfore no need for 2nd 1G network cards in the macs - it can all happen via the inbuilt port (which supports 1G) along with the 1G switch we;re using....

thanks for that! - it;s all clear now......