Replace rj45 connector which pinout standard?

Andy_82 · 30 Mar 2014 at 02:48

Hi,

Just a quick question, I need to replace the rj45 connector on one end of a belkin cat5e patch cable. I have all the tools needed but not sure which standard pinout to use? I know it is either 568a or 568b. I'm guessing it's the latter but would like to get it right first time.

Cannot easily replace the cable as it pretty much inaccessible without taking floor boards up in several rooms.

Thanks

bremen1874 · 30 Mar 2014 at 03:38

It's likely to be b. You should be able to see the pairs at the other end well enough to tell which way it's wired.

Tealc · 30 Mar 2014 at 08:35

I've never seen one wired with a. All the dozens if cables I've used, modified or built have been b.

K.C. Leblanc · 30 Mar 2014 at 15:30

I've only seen B on pre made cables.

Back in the dark ages you used to need cross wired cables to link hubs/switches together, modern kit is now auto sensing.

The chances are if you did mix standards your router/switch wouldn't mind.

bledd · 30 Mar 2014 at 18:57

PistolPete · 30 Mar 2014 at 19:30

As Bremen says - What's on the other end as that will dictate which "standard" to use.

leigh_boy · 30 Mar 2014 at 20:50

iv only seen b and only can remember how to do b

Swarfega · 30 Mar 2014 at 21:04

B.
A is a crossover (cable) of greens and oranges.

Andy_82 · 1 Apr 2014 at 01:22

OK, thanks guys, thought it would be b but just wanted to make sure.