In case you're wondering, some broadcast equipment, such as the Axia Radius, uses Ethernet sockets for the connection of balanced and unbalanced audio.
This simplifies cabling, but you need adapters at the end of each cable to go back to RCA, TRS, XLR etc.
In my home studio I have a Behringer S16 digital snake which connects to my X32 in the control room with only a single CAT5 cable in between. So it's literally sending 16 channels of audio with a single ethernet cable. Pretty cool!