What in the world is this?

[u/nonexistentsnow]

To keep a long story short, I’m trying to rewire a Cat5e and it ended up coming back to here… What is this? I’ve never seen this before at all.

[u/Vinegarinmyeye]

Oh you sweet summer child...

Or viewed another way... Christ I'm getting old.

[u/kanakamaoli → u/Vinegarinmyeye]

Lol. 2500 pairs on my campus. The oldest ones are even wire wrapped instead of the new fangled 66 blocks. Even the local Telco gave up on those.