Faulty RJ45 Cable
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Florent_31
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Florent_31 -
Florent_31 -
Hello everyone,
I'm posting this message because I'm having a problem with an RJ45 cable that runs through my walls and baseboards and seems to be defective.
That is to say, when I test this RJ45 cable with an Indy tester, I notice that wire number 3 (the white-green) doesn't work (it might be cut or stuck in a corner), and it's impossible for me to change it or run a new one.
I have re-crimped my connectors twice to make sure the problem didn't come from the termination.
However, from what I've read, wire number 3 is crucial for carrying the internet (wires 1-3 and 3-6).
My question is: given this defective cable that I can't replace, is it possible for me to get internet through another means?
For example, I was thinking of rearranging the wires in such a way that I can still get internet (and disable telephony in the process: wires 4-5).
I'm not from this field, so any other ideas or advice would also be welcome :)
I'm posting this message because I'm having a problem with an RJ45 cable that runs through my walls and baseboards and seems to be defective.
That is to say, when I test this RJ45 cable with an Indy tester, I notice that wire number 3 (the white-green) doesn't work (it might be cut or stuck in a corner), and it's impossible for me to change it or run a new one.
I have re-crimped my connectors twice to make sure the problem didn't come from the termination.
However, from what I've read, wire number 3 is crucial for carrying the internet (wires 1-3 and 3-6).
My question is: given this defective cable that I can't replace, is it possible for me to get internet through another means?
For example, I was thinking of rearranging the wires in such a way that I can still get internet (and disable telephony in the process: wires 4-5).
I'm not from this field, so any other ideas or advice would also be welcome :)
4 answers
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hi,
you don't need to change the wiring of the cords connected to the two sockets, what really matters are the twisted pairs technically, not their color which is just a convention.
however,
you can't be sure that it's the wire that's cut in the cable, it could be the contact 3 of one of the two sockets that's defective, either on the blade side or on the cad side, so having the same problem with the blue pair as with the green pair.
in the end, well, you'll find out with your manipulation.
--
and ... there you go! -
Hello,
What exactly do you connect, the central box (patch panel) to a wall socket? Not 2 wall sockets, which unless specially installed, are not directly visible?
An Ethernet wiring to support gigabit requires all 8 wires. With 4 wires, you can achieve an installation limited to 100 mbps.
In this case, the positions are 1,2,3,6. Thus, you can replace the pair on 3,6 with the pair originally on 4/5. Or better, do not touch the telephone pair by using 7/8.
You could also leave the wiring untouched by using 2 RJ45 splitters for Ethernet. This is usually used to run 2 Ethernet connections at 100 mbps over a single cable. One on 1,2,3,6 and the other on 4,5,7,8, the splitter ensuring the crossover. Of course, in this case, only one Ethernet 100 mbps connection is usable, not both. Like: https://www.amazon.fr/kwmobile-Doubleur-câble-réseau-Alimentation/dp/B01N7YWMMG/
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Thank you for your response, jee Pee
To summarize the setup: my box is in the living room and there's a wall socket RJ45 right next to it that brings the internet via cable to the bedroom.
So the connection consists of linking the box to the wall socket in the living room and connecting the wall socket in the bedroom to the PC.
Well, 100mbps is definitely better than nothing! :)
Could you confirm that the new setup should look like this:
1 - Orange/White
2 - Orange
3 - Blue (previously Green/White)
4 - Green/White (previously Blue)
5 - Green (previously Blue/White)
6 - Blue/White (previously Green)
7 - White/Brown
8 - Brown
Another question:
Once I've changed the wiring of my wall socket, do I also need to redo the RJ45 cable that goes from the box to the wall socket and the RJ45 cable that goes from the bedroom wall socket to the PC according to this same model?
The idea of the splitter is nice too, but for aesthetic reasons, I'd prefer to redo the wiring of my wall socket.
Thanks -
I made the connection mentioned above and it worked: internet is arriving wired in the bedroom.
The 100mbps are more than enough for me
Thank you for your help Jee Pee and Brupale
