Originally posted by: spidey07
Originally posted by: EyeMWing
I'm not sure what spec you read, but the spec for ethernet-over-UTP at 10/100/1000mbit speeds is 150m - and the connector on the end doesn't matter as far as the length goes, and all "patch cable" tells you is that you have a straight-through male RJ45-male RJ45.
And what, precisely, do you mean by scan? Packet loss tests? The worst-made CAT5 installations on earth seem to pass those tests with flying colors, except in very odd situations.
I'm referring to EIA/TIA 568 specifications which calls for no more than 5 meters of patch cable on each end (90 meters of horizontal cable, 5 meters of patch on each end for no more than 100 meters)
By scan I mean running a cable certification on the channel and link. this measures all aspects of the cable (NEXT, FEXT, return loss, attentuation, etc). It "scans" the cable by measuring all these parameters while running through the frequency range from 1 to 250/350 Mhz. You may find that all of your cables using category 6 equipment might not even pass category 5 parameters.
The number 1 cause of network performance problems is the cable - like 90%. I just don't like mucking with the physical layer.
If you're going to be working with cabling much you might want to pick up a cat6 scanner. Fluke makes a good one...runs about 4 grand I think. But they are worth their weight in gold. It's almost a required tool to for a network.