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Question by Mark Connolly posted 21 Jul 2005 | | 120' foot cable tests 100% but no link | Hello,
I'm hoping someone can help me with this. I made a 120' cable to run from the back room of my house (where the switch is) to the front room (my sons bedroom). I have all the necessary tools etc. and after crimping I tested the cable using a CompuCable tester. Using both the loopback feature and the remote receiver, the cable tested 100% perfect (unsheilded CAT 5). But I plug my laptop or a desktop into it, connect it to the switch and I get no link. When I look at the switch log, the port link keeps bouncing up and down. The workstation always reports "Media Disconnected".
I've double checked the seating in the ports, and the cable itself.
I don't do this for a living, but I've crimped patch cables 100's of times with no problems.
Any pointers is greatly appreciated. |  |
Answer by Joseph Golan posted 23 Jul 2005 | Dear Mark,
Not familiar with that tester but it is most likely to be for continuety only and does not measure pair performace.
Sounds like you have split pairs, please receck your terminations at both ends for the proper pairing of the cable at the jacks.
see this url for5 the proper pairing
http://www.cabling-design.com/references/pinouts/t568ab.shtml
Sincerely,
Joseph Golan, RCDD
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