I suspect they are data, voice, or video jacks. Found in a conference room for a building from the 80s-90s. It’s the same wall as the TV. There’s also other existing RJ45 Cat 5 ports.
I suspect they are data, voice, or video jacks. Found in a conference room for a building from the 80s-90s. It’s the same wall as the TV. There’s also other existing RJ45 Cat 5 ports.
There was an old DEC network connector for daisy chain coax networks where the wall socket would break the daisy chain to insert the computer being plugged in. I can’t remeber what it was called but it looked something like this.