Re: cat5 cable length problem

On 22 Feb 2007 08:25:57 -0800, wattywatts@xxxxxxxxx wrote:

On 22 Feb, 14:14, "Kay Archer" <kayhyphenarc...@xxxxxxxx> wrote:
<wattywa...@xxxxxxxxx> wrote in message

news:1172153098.062017.81140@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

hi, im trying to run an internet connection into our mess room at work
which is about 25 meters away from the office where the computers and
modem etc are. in the office the modem is connected to a router then
in to a switch to feed the several computers, i have connected a short
patch cable from a spare socket on the switch to my laptop and all is
fine, but when i run a length (about 25 meters) of cable down to the
mess room it will not connect(starts to aquire a netwok address then
stops and starts again repeatedly), is the length of the cable the
problem and if so is there anyway round it, the cable is the copper
core (solid) type cat5 cable.

Cat5 (if properly configured and installed) should be good up to 100 metres.

no sharp bends in the cable, correct tool used, only the allowed amount
stripped or untwisted, etc.
Seehttp://en.wikipedia.org/wiki/Category_5_cable,http://grouper.ieee.org/groups/802/3/tutorial/july98/kish_070798.pdforhttp://grouper.ieee.org/groups/802/3/tutorial/march98/mick_170398.pdf

Use punch down (110) jacks at each end and then (factory made) patch cables.

For cabling materials and tools, I've always had good luck with Milestek
(and I'm close enough that an order this afternoon will arrive tomorrow on
ups ground (g)).

hi thanks for the reply, i know that it should be good for 100 meters,
but for some reason it isnt, i have tested the cable with a lan cable
tester and all is fine, so i made up another run of 25 meters an left
it coiled up by the side of me, just to check whether it was the other
cable, but still the same. would it make any difference that the cable
is coming out of a switch, as when i put an adapter on the end to
convert it to a crossover cable and link to pc's to gether its fine,
ive read that the max length for patch leads is 10m does this affect
me at all?

No.

Let's see. You're using 4 pair Cat-5e or higher rated cable, and it's
within the length limits. HOW ARE YOU WIRING THE CABLE?

Did you punch the cable down on IDC jacks and use a patch cable? Did
you crimp connectors on the ends of the solid wire? Did you make the
pretty wires match some form of color code?

I'm guessing not.

Carl Navarro

.