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.

  • whaleross@lemmy.world
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    1 day ago

    From the 80s-90s, my guess would be some proprietary format of conferencing or intercom that has not existed for thirty years or more.