TIA568A vs TIA568B

WaterfallSandSun

So I have wired the house with ethernet with 4 ethernet cables going into each room/wallplate. For the connections to the back side of the wallplates, I have learned that the instructions that I have been following was for the TIA568A specification. On every other end of the ethernet runs that is not going to a wall plate, they are wired according to the TIA568B specification.

So imagine all the ethernet cable connections that are not directly connected to the back end of each wallplate, such as the connection to the media panel, then from there to a switch/router/modem, or from the front side of the wall plate to whatever it is connected to (t.v., cable box, blu ray player,
desktop computer, laptop, another switch etc etc) are wired according to the TIA568B specification.

The only location wired according to the TIA568A specification is directly behind each wall plate.

Would there be any problems if I left it that way? Would it be more efficient if I rewired the back of each wallplate connection to the TIA568B specification?

I would probably do it if it was just a couple, but just wondering if it would make any difference or if it would be a waste of time. (Because there would be a crap load of work to be done to rewire each one, also, some of the runs are pretty tight with little to no slack left.)

Please explain everything to me in layman's terms if the post will be technical. Thanks.

Aioua

A/B only matters in that both ends of a given wire need to be pinned the same. You can plug something A into B and it doesn't matter, but you can't have a cable or run that's A on one end and B on the other.

Where do your runs from the wall plate go to? Is there a central patch panel? If that panel is wired up B then the wall plates being A is gonna be a problem.

WaterfallSandSun

I have a central "media panel" or "patch panel" or "smart panel" where everything is run to (inside a closet). There is a modem, router, and switch there, which from that point distributes service to every room via multiple ethernet cables. But behind each wall plate it is wired according to the TIA568A specification. Everywhere else it is TIA568B.

Just hoping to avoid rewiring behind every wallplate with the multiple ethernet cords, especially since some of the runs are really tight.

dispatch.o

WaterfallSandSun wrote: »

I have a central "media panel" or "patch panel" or "smart panel" where everything is run to (inside a closet). There is a modem, router, and switch there, which from that point distributes service to every room via multiple ethernet cables. But behind each wall plate it is wired according to the TIA568A specification. Everywhere else it is TIA568B.

Just hoping to avoid rewiring behind every wallplate with the multiple ethernet cords, especially since some of the runs are really tight.

I think what @Aioua is saying is that even if you had to rewire something, it would probably be rewiring the panel to match the plates. If every plate is A and the Panel is B, wire the panel to A and all is well is my understanding of it. As long as both ends of a single end of cable are wired the same, you should be fine. Lots of people probably know way more about this than I do.

WaterfallSandSun

phooey

spool32

Yep they need to be same-same from end to end. Luckily changing them at the plate will be tedious but not horrible, as it's just a matter of removing the face, popping the jacks out of the plate, popping the wires out of the jack, and repunching them in the right order.

bowen

Yeah I would change them at the patch panel/drop rather than at the plate/jack.