Single RJ-45 with two NICs?

[your name]

Hello,

When you look at a cat5e cable, it seems to have 4 pairs of twisted
cable inside. Does that mean that a 100 Mbps NIC will use all 4 pairs of
twisted cable or only 2-pairs? If it's only 2, then can I use the other
2 pairs to run another NIC? If so, how?

Thanks.

 

[Keith Thompson]

When you look at a cat5e cable, it seems to have 4 pairs of twisted
cable inside. Does that mean that a 100 Mbps NIC will use all 4 pairs
of twisted cable or only 2-pairs? If it's only 2, then can I use the
other 2 pairs to run another NIC? If so, how?

This newsgroup discusses the C programming language. We can't help
you with questions about network cables. Perhaps another newsgroup
could, but I don't know which one.

 

[Antoninus Twink]

When you look at a cat5e cable, it seems to have 4 pairs of twisted
cable inside.

Yes it does!

Does that mean that a 100 Mbps NIC will use all 4 pairs of twisted
cable or only 2-pairs?

I believe that only 2 are used at 100Mbps. Gigabit ethernet uses all 4.

I think originally there were 4 pairs so that both phone and data could
run over the same cable (4 data wires, 4 voice wires). It does make
sense to use all 8 for data.

If it's only 2, then can I use the other 2 pairs to run another NIC?
If so, how?

Maybe if you modify your NIC and write a suitable driver for it... Why
on earth would you want to? Just get a splitter.

 

[Walter Roberson]

This newsgroup discusses the C programming language. We can't help
you with questions about network cables. Perhaps another newsgroup
could, but I don't know which one.

comp.dcom.lans.ethernet

 

[Walter Roberson]

I believe that only 2 are used at 100Mbps.

You forget 100Base-T4.

 

[Antoninus Twink]

You forget 100Base-T4.

Well, I did use the present tense

Ignoring products that bellyflopped, I believe that only...