ethernet patch cord - same as phone cord?

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I read an ad for a cat5e patch cord and it said it could be used as a phone cord. Is this accurate? I know it is different from a regular ethernet cable. And, I know that a cat5e or even 6 would be a better quality phone cable than the usual phone cable. Comments?
 
CAT5, 5e or 6 aren't going to make any difference regarding call quality over regular CAT 3 phone cable.
 
It's not supposed to be. Phone cord is supposed to "twist" the pair from the input to the output while Ethernet doesn't twist the input from the output. I'm not talking about the twists-per-inch along the length of the cable, I'm talking about swapping positions on the inputs and outputs.

Looks like it matters more to a Ground Start trunk.
http://en.wikipedia.org/wiki/Ground_start

Also, some PABXes really care about this.
 
Can it be used?

Yes. With appropriate ends.

Will it make anything better? No.

Its just convenient to reuse CAT5 if you have some then get CAT3 if you need a phone patch.
 
As long as we're on the subject of these cables, with Cat5 there used to be patch and crossover cables. The crossovers have the wires' positions switched on one end. These are largely no longer necessary as most routers (and even some built in NICs) now have auto-sensing cabability - even the cheap low end ones like the TP-Links I bought a few months ago employ auto sensing to switch a regular patch over to crossover operation in the necessary scenario.
 
Phone cord uses RJ11, and has 2-4 wires inside. The inner 2 are twist pair and the outer 2 are twist pair.

Ethernet cord uses RJ45 and has 8 wires inside. The twist pair are 1-2, 3-6, 4-5, 7-8, so if someone want to use the same RJ45 socket for Ethernet as phone connection, they can and will not blow up the system. Ethernet uses the 1-2 and 3-6 pairs for data and unless modified for dual connection in one socket, the 3-6 and 7-8 pairs are not used.
 
Originally Posted By: PandaBear
Originally Posted By: spackard
Gig-Ethernet uses all 4 pairs, PandaBear.


LOL, I'm outdated, still using 10/100 at home.


Hey, don't knock it. I'm still talking over a house full of Bell Telephone five line copper from 1968. Still sounds great, even after we stopped using POTS.
 
Originally Posted By: PandaBear
Originally Posted By: spackard
Gig-Ethernet uses all 4 pairs, PandaBear.


LOL, I'm outdated, still using 10/100 at home.


Not necessarily, whats your home network used for? Web surfing is nowhere near those speeds. I have several GB routers here. But the best performance is still my 10/100 WHR-G125 flashed with tomato for internet connections.
 
Originally Posted By: bmwjohn
And, I know that a cat5e or even 6 would be a better quality phone cable than the usual phone cable. Comments?


If the usual phone cable is "quad" (with 4 wires, red/green/yellow/black) and you're running two phone lines in that quad cable and you're getting crosstalk between them (which is very common when you're running two lines in quad cable), replacing the quad cable with cat5e would eliminate the crosstalk.

Of course, so would replacing it with cat3, but I've noticed that cat3 is nearly the same price as cat5e.
 
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