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Ethernet Cabling Woes


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#1 bigalxyz

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Posted 15 October 2016 - 07:34 AM

Hello forum,

 

While putting new floors in, I thought I'd take the opportunity to run some ethernet cables around my home. It's not working...

 

I bought a 30m length of cat 6 cable, cut lengths of it. I then connected the ends of the lengths to wall face plates (remove the outer sheath, strip away the shielding and then fit to face plate using one of those punch down tools). Then connected up.

 

For example:

 

Modem/router -> cable -> first face plate -> cat 6 cable along hallway -> second face plate in bedroom -> cable -> laptop

 

Nothing happens. Dead.

 

If I connect directly ie

 

Modem/router -> cable -> laptop

 

It works perfectly.

 

So something is going wrong but I'm not sure what.

 

Can anyone help please? I've ordered a gadget from eBay which tests connections but it hasn't arrived yet. Just wondering if there's some obvious schoolboy error I've made somewhere.

 

Thanks,

Alan.

 

 

 



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#2 sasschary

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Posted 15 October 2016 - 07:51 AM

Hello, Alan!

 

Be aware before reading this that I am not super knowledgeable about wiring networks and such, and so you may want someone else to confirm what I am saying. Also, I'm not sure that I'll have anything else beyond this post, since I don't generally do things with wired networks.

 

Anyway, did you run the cat 6 cable near electrical wires? I have heard previously that the electrical wires will interfere with data cables. I then found this page, and #4 talks about not running electrical wires and data cables parallel to each other, and gives an explanation of why that happens. So, that is what I would think might cause the disruption in the signal, though I'm sure there are also other possibilities.

 

Again, you may want another user to confirm this, but that is what I have heard in the past. And if you didn't run the cables parallel to electrical cables, then I'm not really sure of other possibilities, but the page I referenced above may give you something useful.

 

Sasschary



#3 bigalxyz

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Posted 15 October 2016 - 07:59 AM

Hello, Alan!

 

Be aware before reading this that I am not super knowledgeable about wiring networks and such, and so you may want someone else to confirm what I am saying. Also, I'm not sure that I'll have anything else beyond this post, since I don't generally do things with wired networks.

 

Anyway, did you run the cat 6 cable near electrical wires? I have heard previously that the electrical wires will interfere with data cables. I then found this page, and #4 talks about not running electrical wires and data cables parallel to each other, and gives an explanation of why that happens. So, that is what I would think might cause the disruption in the signal, though I'm sure there are also other possibilities.

 

Again, you may want another user to confirm this, but that is what I have heard in the past. And if you didn't run the cables parallel to electrical cables, then I'm not really sure of other possibilities, but the page I referenced above may give you something useful.

 

Sasschary

 

Thank you. At one end of the cat 6 cable it's close to a 240V socket, but from there the electrical wires go in a different direction. The cat 6 cable is about 12 metres long and I don't believe it's close to any other electrical wires along its length, no.

 

Alan.



#4 bigalxyz

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Posted 15 October 2016 - 09:13 AM

Update - testing device arrived in the post. Shows zero connectivity on ANY of the 8 wires! I can only imagine that there's a problem with the wall plates - either I haven't wired them properly or they're otherwise faulty.



#5 bigalxyz

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Posted 15 October 2016 - 09:33 AM

Update - testing device arrived in the post. Shows zero connectivity on ANY of the 8 wires! I can only imagine that there's a problem with the wall plates - either I haven't wired them properly or they're otherwise faulty.

I've had a closer look and I don't think the plastic coating on the wires has been cut properly by the punch down tool. It looks to me like the wires are very very thin and not suitable for going in this kind of connector. I might look for a thicker, better quality cable and try that instead. I did wonder about trying to solder the wires but they're very thin and everything is packed very close together - I doubt I have the skill to do a good job of it.



#6 Wand3r3r

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Posted 17 October 2016 - 05:02 PM

Modem/router -> cable -> first face plate -> cat 6 cable along hallway -> second face plate in bedroom -> cable -> laptop

 

wacky way of wiring.  hallway cable shouldn't go to a faceplate.  should be home run from router to bedroom face plate.

 

you would test where the 1st break is in the pattern

Modem/router -> cable -> first face plate -> cable -> laptop

 

what wiring standard did you use A or B?



#7 TheJokerz

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Posted 19 October 2016 - 03:19 PM

To add to this I know it matters if you have solid or stranded cable, there are different RJ45 terminations.

 

Here is a pretty good rundown of the difference of the terminations

 

http://www.l-com.com/multimedia/catalog_page/2K9M1_040%20Premium%20Modular%20Plugs.pdf

 

Hope this helps!


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