On Fri, 01 Jul 2005 15:24:00 -0700, Alex Dean writes:
>How do I recognize a crossover port? The ports on my current router are
>WAN,1,2,3,4. I'm connecting from the DSL modem to router via the WAN
>port with a patch cable. For that matter, how do I spot a patch vs.
>crossover cable if I've forgotten to label them? The order of the wires
>in the jack, correct?
>
A crossover port is typically marked with a X. Sometimes the 1,2,3,4 can be shared.
You can't get a link light without the proper port/cable combination. Like you would
put a straight cable from the 1,2,3,4 ports on your router the the uplink/X-over
ports on the switches. However, you're setup may be more complicated than needed
unless you are running an absurd amount of nodes in the house.
On the RJ-45 connector, you check the color sequence of the 8 wires. If the color
sequence is the same, it is a patch cable. For a crossover cable, terminate one
cable with 568B standard, the other w/ 568A.
568B (Clip Down)
Orange-white, Orange, Green-white, Blue, Blue-White, Green, Brown-white, Brown.
568A (Clip Down)
Green-white, Green, Orange-White, Blue, Blue-White, Orange, Brown-White, Brown.
>I was going to just drill a hole in the ceiling, push the cabling up
>there, go up into the crawlspace, drag the cable to the end of the
>house, and drop it down through another hole I drill. Are you talking
>about pvc or metal tubing I'd put the cable inside? I hadn't considered
>that - what's the benefits?
Crawl space in summer, you're crazy ;)
I assumed the house you were talking about was being built, not already finished
(dry-walled). If you could run some flexible tube, called "Smurf Tube", throughout
the walls, it would protect the cable and provide a means for running more cable at
a later date, like if technology advances past twisted pair cable, etc. It is also
handy for adding more cables at a later date, for a phone line, cable TV, etc. I
don't know if smurf tube the actual name, but it is a blue tube that is flexible.
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