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Question

CAT 5 Connection problem

Mar 6, 2016 9:16AM PST

I am struggling with a basic connectivity problem and I hope someone out there can give me new ideas.

I have laid 3 lines, 35 m each, of "Enhanced Net 5 UTP 4 Pair Solid Cable" from one floor/corner of the house to the other. The RJ45 connectors were successfully crimped and tested with a "Master CHL-468" tester.

However, none of the 3 lines are working reliably. By that I mean that only 1 out of 100 times I manage to get the orange led to lit indicating electrical connection established. When it does, I am getting a reasonable 90 Mbits/sec (out of an ADSL modem capable of 300 Mbits/sec) of performance.

One of the tests I did was to join two of the runs with a female to female then test the full 70m with the CHL-468 and even that worked.

Right now, the only idea that occurs to me is that he modem does not have enough power to drive the signal across 35m of wire but I don't know how to test that theory.

Any further ideas you may have will be greatly appreciated.

Discussion is locked

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Answer
Since 100m is not a problem here.
Mar 6, 2016 9:41AM PST

Tell me about the pairing system you used.

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Pairing system used
Mar 6, 2016 11:40AM PST

I guess you are asking how I have aligned the cables inside the RJ45 at each end. I have followed he instruction on this page:

http://www.wikihow.com/Crimp-Rj45

And my connectors are looking just like the picture above step 10 on that site.

If you meant something else by "pairing system" please let me know.

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I was hoping for something clearer.
Mar 7, 2016 9:23AM PST
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Answer
I had
Mar 6, 2016 6:37PM PST

problems with long cables out of a switch that was 5V powered. Replaced with a 12V switch and it worked. Don't know if 7.5V or 9V types would suffice. Guess you just have to try.

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That would be my solution too (n/t)
Mar 8, 2016 6:15PM PST

n/t