107
Can't have those nice pairs after all ๐
(lemmy.nz)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 27 Jun 2025
107 points (100.0% liked)
iiiiiiitttttttttttt
1761 readers
1 users here now
you know the computer thing is it plugged in?
A community for memes and posts about tech and IT related rage.
founded 1 year ago
MODERATORS
Yeah, why is this the case? I have to refer to a diagram whenever I punch down a jack. Always forget where the green goes.
I sing a little ditty in my head:
Orange-stripe, orange, green-strip, blue,
Blue stripe, green, brown-stripe, brown.
If it's the "other" scheme? Fuck me, to the diagrams I go.
EDIT: Realized you're talking about jacks. Aren't they all clearly labelled these days, with both schemes?
Yeah, the good ones are labeled, but I have a bag of unknown origin that don't have it on the side. I should probably just get a new bag.
Was going to say, despite my loathing of waste, I'd probably chunk of bag of unlabelled jacks. Hell, you'll waste a few fucking up anyway.
I'm usually the type to just deal with the annoyance and use them up to prevent tossing them. Probably a minor enough annoyance.
They made 2 variations so it could coexist with older Telco wiring.
Blue in the middle is pair 1. Orange around that is pair 2. Green on the left, brown to the right.
CC-B-AA-B-DD.
Pair A is for telephone back when Ethernet was wired to a punch down block. Pair B and C are for data. Swap b and c on one end for crossover.
The fourth pair is basically useless.
Useless for 10/100. If you want gig you need the 4th pair.
So, useless for home internet, but useful if you want to use your PC VM on your laptop
Thankfully I don't need to worry about that for stuff later than ~2010.
Yeah but it still explains the โwhy?โ
To prevent crosstalk inside the cable and between cables in the same location, among other reasons.