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CAT5 or CAT5E

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Name: Steven Evison
Date: August 15, 2001 at 03:05:02 Pacific
Comment:

Dose any one know what is the difference between cat5 and cat5e ?

TA !



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Response Number 1
Name: Viper
Date: August 15, 2001 at 07:08:28 Pacific
Reply:

I believe Cat 5 is rated for 100MB sec transmission and CAT 5e is rated 1GB sec transmission.


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Response Number 2
Name: Dan
Date: August 17, 2001 at 11:55:56 Pacific
Reply:

Cat 5 can run gigabit ethernet (just installed a gigabit card in a server today). Cat 5e is a improved version of cat 5. You probably won't notice any difference if you are running 100 meg line.



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Response Number 3
Name: T.J.
Date: December 6, 2001 at 05:48:08 Pacific
Reply:

The main difference between CAT5 and CAT5e is that CAT5E is set to run at 350MHz where as CAT5 is only set to run at 100MHz, a difference you won't notice until you get a connection directly from a server.


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Response Number 4
Name: Justa Passerby
Date: December 8, 2001 at 23:57:31 Pacific
Reply:

Copied from another website..hope it's helpful:

1. What is the difference between CAT5, CAT5e, CAT6, CAT7...
The Simple Answer:
CAT5 is rated to 100M
CAT5e is rated to 350M
CAT6 and CAT6e is rated to 550M or 1000M depending on your source
CAT7 is supposedly rated to 700M or presumably 1000M

Today there is no approved CAT6 or CAT7. While some folks are selling products they call Level 6 or 7, there aren’t even specs for them, making CAT5e the best available option. CAT6 cable is being made with 23 guage conductor wire as opposed to the slightly smaller 24 guage for CAT5e and also has a separator to handle crosstalk better.

Both CAT5 and CAT5e have 100 ohm impedance and electrical characteristics supporting transmissions up to 100 MHz. The differences between CAT5 and CAT5e show in all aspects of performance: capacitance, frequency, resistance, attenuation, and NEXT. CAT5e components were designed with high-speed gigabit Ethernet in mind. While CAT5 components may function to some degree in a gigabit Ethernet, they perform below standard during high-data transfer scenarios. CAT5e cables work with ATM and gigabit speed products. Simply, if you are using a 100Mbps switch, get CAT5e cable instead of CAT5.

CAT5e is formally called ANSI/TIA/EIA 568A-5 or simply Category 5e (the e stands for ‘enhanced’). CAT5e is completely backward compatible with current CAT5 equipment. The enhanced electrical performance of CAT5e ensures that the cable will support applications that require additional bandwidth, such as gigabit Ethernet or analog video.



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