[orients22]

I want to use single utp cable for conneting two PC;s through hub, I mean , want to use only two pairs in the utp cables, by using only 1, 2, 3 and 6, cables for each.

[StuMegu]

I'm not sure what you are asking, but that configuration should work as those four wires are what are used for communication anyway. Just make sure both cables going into the hub are wired up the same at both ends (hub end and PC end) Then you just have to set the IP addresses and workgroup details to finish!

Is this what you were looking for?

[orients22]

I'm not sure what you are asking, but that configuration should work as those four wires are what are used for communication anyway. Just make sure both cables going into the hub are wired up the same at both ends (hub end and PC end) Then you just have to set the IP addresses and workgroup details to finish!

Is this what you were looking for??

Yes thanks for your reply, I just tried the same configuration and I was successful in connecting the HUB to the two pCS by using only 2 pairs of UTP cable.

[tpeters]

I worked for a large company with Cisco 5000 switches (two or more) in the closets to serve the users, and bigger switches in the data center. They used to routinely split the pairs in order to get two Ethernet conections out of each 4-pair (standard UTP Cat 5 cable) for some of the connections.

This caused problems where the runs were long, i.e. nearing the limits of the Enternet cabling standard. We could run two 10mb conections, or one 100mb if the other was not in use. You could tell when this was going on because the 100mb connections would be filled with retries and run at about the same speed as the 10mb connections.

Using both for 100mb/full duplex caused errors, and would occasionally put a port into ErrorDisable mode.

Runs that were shorter didn't have this problem, or didn't have it very bad. To some extent, this would depend on your cable quality-- Lucent GigsSpeed probably has better NEXT and FEXT specs.