1

The shop I bought my patch cable from connected the Rj45 plug as O, O/W, G, G/W, Bl/W, Bl,Br/w Br.

How do I connect it on the wall box?

7
  • good to include a pic though you don't have rep. But I am vaguely familiar with what you're talking about. It's like when you have lots of computers and you have a thing on the wall with all the RJ45 sockets, and to connect two computers together you connect one socket to another socket on the wall area. I guess you're asking how to wire it. Straight through or crossover. Why don't you try it for two sockets. I'd guess straight through and a crossover will work.. and you use a crossover cable to connect the two.
    – barlop
    Jul 8, 2014 at 11:39
  • Yes its a P8PC wire connected as I said in the post. Need to know if I must wire the wall box/point (not sure of the right terminology here) in the same order. (unable to upload images). I have already made a patch cable connected the same way that I will run from the wall socket to a PC.
    – chips
    Jul 8, 2014 at 11:58
  • It's really not difficult to find information about cat5 cabling on the internet.
    – CharlieRB
    Jul 8, 2014 at 12:00
  • My worry is not finding information on the CAT5 wiring as I am aware of how it should be done. I just don't have the money to fork out for a call out fee to come and rewire and already laid cable. The P8PC connection was done incorrectly I need to know if I must wire the wall box in the same way for the termination point to work.
    – chips
    Jul 8, 2014 at 12:05
  • You have had not just one, but two, close votes. I strongly suggest that you include some pics. If the links don't go in somebody can always edit it and fix it. But try to.
    – barlop
    Jul 8, 2014 at 12:34

2 Answers 2

0

I would do this:

  • Connect the patch cord to the wall jack (as a user) and write down which color will connect to which pin.
  • Cut the patch cord and connect the colored cable heads to pins according to what you have written in the previous step
0

A Cat-5e cable for Ethernet should be connected to the 8P8C modular connector as per the EIA/TIA 568-B.

There's lots of images with the schema on the internet, but the pairing is: 2' 2 3' 1 1' 3 4' 4, with the ' meaning the second cable in the pair.

As per the coloring standard on cable pairs, the pairs are numerated as such:

  1. Blue
  2. Orange
  3. Green
  4. Brown

The second cable of the pair is white-striped.

So the colors should be, with the pins looking at you and with the hole in the P8PC connector towards you, from left to right, O/W, O, G/W, Bl, Bl/W, G, Br/W, Br.

If your cable does not follow EIA/TIA 568-{A,B}, my opinion is that you should buy another modular connector and patch both cables according to the standard.

Wiring the connector straight (maybe 1 1' 2 2' 3 3' 4 4') may increase crosstalk issues.

5
  • Can I wire to the wall socket as I have indicated I am quite happy with the standard problem is (silly me) never checked to see if the shop wired correctly so I have already laid the cable. Just need to know if i connect the wires the same way to the wall point (socket) will it make a difference if I then use a patch cable connected the the same way running from the wall socket to a pc
    – chips
    Jul 8, 2014 at 11:54
  • Just to be clear, it's 8P8C, not P8PC.
    – joeqwerty
    Jul 8, 2014 at 15:16
  • @joeqwerty yikes. My brain just crosswired the characters :). Edited to avoid confusion, thanks!
    – ssice
    Jul 9, 2014 at 16:36
  • @chips in TIA 568-B the wiring is straight, but the pairs are not connected "in order". That's to reduce crosstalk, and it may prevent you to reach 1000BaseT compatibility (thus, the wiring should not be called Cat. 5e, even if the patch cable follows it).
    – ssice
    Jul 9, 2014 at 16:38
  • @chips you should follow the standard. But if you really really can't do and you absolutely must not replace the wire nor the modular connector and still live with it, use a multimeter to be certain of the wiring order. But it may not work due to crosstalk. Rewiring the modular connector is a better idea if you can afford it.
    – ssice
    Jul 9, 2014 at 16:41

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .