HighEnd ShowPix - RJ45 port

My boss just picked up some old HighEnd ShowPix fixtures and I'm hitting a wall on what looks to be RJ45 ports on the fixtures. (I have not dug these out of their roadcases yet as they are squirrelled away in a closet far away.)


The manual makes no mention of such a port, only the USB for updates. Nothing in the manual for control config or anything. I'm assuming it's just an interface for uploading content like the USB given the age of the fixtures, but I wanted to ask here. Anyone know anything about them?