For Ethernet, the pairs that are active are 1 and 2, and 3 and 6. Each pair
should use the twisted cable, otherwise, it will not have the noise shielding
effect of a twisted pair -- it just might still work, but not for long
distances.
Generally for card to hub connection, the wiring is straight, 1-2 pair
connected to 1-2 pair, 3-6 pair connected to the 3-6 pair, 4-5 pair connected
to 4-5 pair and 7-8 pair connected to 7-8 pair.
for a card to card connection, the 1-2 pair is connected to the 3-6 pair and
vice versa.
On 22 Nov 00 at 9:46, Reynald I. Ngo wrote:
> At 09:19 AM 11/22/00 +0800, you wrote:
>
> Roi,
>
> Actually, you only need 4 wires... you just need to make sure the
> RX and TX is right. And yes, even without following the color coding. {=)
>
> >If I didn't follow the UTP cable color coding will it affect the data
> >transmission? Will the data transmission be slower?
>
>
> ---
> Reynald I. Ngo
> Express Internet, Inc.
> Express Telecoms Co., Inc.
>
>
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