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pmjdebruijn
Guru
Joined: 24 Jul 2003
Posts: 506
Location: Sittard, The Netherlands
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 Posted: Tue Aug 12, 2003 12:12 pm Post subject: UTP vs STP |
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I'm having trouble finding information about STP cabling.
What are the advantages of STP?
Does it have cat ratings? How do they compare to UTP cat ratings? What STP category is good enough for 1gbit?
When should I use STP instead of UTP? Is STP always better than UTP?
Bye,
DrZ |
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stonent
Veteran
Joined: 07 Aug 2003
Posts: 1139
Location: Texas
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| Posted: Tue Aug 12, 2003 7:15 pm Post subject: |
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I don't think anyone uses STP anymore it costs more and is harder to cable. Everyone use UTP. STP is thicker because it has shielding on the outside. UTP doesn't use it because the twisting of the wires shields the signal. The CAT number tells how many twists per inch.
CAT-3 is rated up to 10Mbps. 10Base-T
CAT-4 is rated up to 16Mbps. Token Ring
CAT-5 is rated up to 100Mbps. 100Base-T
CAT-5e is rated up to 1000Mbps. 1000BaseT (I think it uses a different kind of wire) |
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erik_swanson
Retired Dev
Joined: 02 Feb 2003
Posts: 123
Location: Corvallis, OR USA
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| Posted: Tue Aug 12, 2003 10:36 pm Post subject: |
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| BTW: CAT-6 has the pairs seperated by a + shaped spacer, reducing crosstalk amongst the pairs. (A good thing, especially for gigabit ethernet.) If you have any intention of ever going to gigabit, don't waste your money on CAT-5(e). |
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neocui
Apprentice
Joined: 21 Apr 2003
Posts: 186
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| Posted: Wed Aug 13, 2003 1:27 pm Post subject: |
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| STP uses serial connectors... not RJ-45... so u can't use them for regular ethernets... (I think that's what i remeber from Cisco class...) |
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