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3Com Switch can not use long cable

3Com Switch can not use long cable

3Com Switch can not use long cable

Dear All,

I have 3Com Superstack 3 Baseline 10/100 Autosensing and Auto MDI/X. The unmanage switch one.

When I use short UTP cable (about 10 meters), and on the network properties configure the NIC Card (3Com 3C905B) to 100 Mbps or Autosensing. The switch is working good.

But when I use long UTP cable (about 50 meters) and set NIC to 100 Mbps or Autosensing, the LED in switch show I get 100 Mbps, but the network is not working (time out in ping) and when I configure the NIC to 10 Mbps, the network is intermittent.

What's wrong with my switch...?



RE: 3Com Switch can not use long cable

These are premade cat 5 or better cables?  this sounds like a home made cable (spilt pair) issue, just my guess.

I tried to remain child-like, all I acheived was childish.

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