Wiring Problems w/new and existing wiring 1

[KIMBARQ]

Can someone help me with this problem.

Engineering dept moves into offices that finance used to occupy for several years. Finance works fine in all jacks, months later when engineering moves in, none of the jacks work. I determined that they were old and needed reterminating (the wire crumbled in my hand). Engineering needed new jacks, so the electrician ran new cable, and Sprint terminated it and tested it on a fluke meter...all passed. The network Plotter (assigned a static IP) won't work at the reterminated jack, but will work directly into the switch. Guy #1 won't work in the new jack in his office or any of the 3 new jacks. Guy#2 works in his own new jack and Guy #1's new jack. Why are these cable passing tests but nothing works in them?

Kim Joseph
Franklinton, NC

 

[franklin97355]

Did you get a printout of the tests from Sprint? are you using new patch cables? Have you tried different ports on the switch? What are your total distances?

 

[mikeydidit]

You may want to look into the Ethernet adaptor cards setings and see what they are on. I would bet the original departments cards were set to 10/ half duplex. These are probably set to 100. Also look into the possibilites of VLANS.

Mike Jones
Louisiana State University Health Sciences center

 

[KIMBARQ]

I found out what the problem was. I came to this company last year and these buildings have been here since about 1973. It seems that the problem with the old wiring was that it was just old...and reterminating it did the trick. For the new drops the problem was that I had Sprint terminate everything 568-B, but it appears that building was terminated 568-B at the jack and 568-A at the panel which is the silliest thing I've ever seen.

Kim Joseph
Franklinton, NC

 

[wires]

For the new drops the problem was that I had Sprint terminate everything 568-B, but it appears that building was terminated 568-B at the jack and 568-A at the panel"

Which would have caused it to fail even the most basic "fluke meter" wiremap test.

Trust, but verify. If you are not present for all the testing than you should get printed reports for each jack.

 

[KIMBARQ]

I doubt that anybody even requested testing. I can't imagine why it was done that way, but it was. when the sprint guy was here i asked him to test some of the existing and they all failed. I was ready to pull the cable out of the ceiling and have them drop new cable, until I looked closely at a patch cord, which said 568-A and is a crossover cable. That's when I started to put it together.

Kim Joseph
Franklinton, NC