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TOPIC: CAT5 Cable Configuration

CAT5 Cable Configuration 13 years 10 months ago #26

Please let me know ...we use 4 pair cable in CAT5, where as only 2 are used for trasmission and receiving...why are rest use for.

Thanks.
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CAT5 Cable Configuration 13 years 10 months ago #28

Thanks for replying, but I came to know that the rest of the 2 pairs are used for synchronization and audio/video data transmission, secondly, sometimes when using 100Mbps, if any of the remaining 2 pairs are not connected properly the network slows down.

Please advise.

Regards.
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CAT5 Cable Configuration 13 years 10 months ago #27

  • Chris
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Ali,

The rest are not used at all when running upto 100 Mbits full duplex.

However, when running Gigabit ethernet, it will use all 4 pairs. Gigabit ethernet is a topic that will be covered in the future.

Cheers,
Chris Partsenidis.
Founder & Editor-in-Chief
www.Firewall.cx
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Re: CAT5 Cable Configuration 8 years 4 months ago #26958

  • sose
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the rest could sometimes be used for earthing

thanks

just backtracking into the past
sose
Network Engineer
analysethis.co/index.php/forum/index
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Re: CAT5 Cable Configuration 8 years 3 months ago #27323

  • Faizan
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TWo for voice and two for POE (Power over ethernet)
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