>       Why bother with Cat6? Why not go straight to Cat7 and be
> prepared for
> the next decade?  ;-)
>
> -- Ed Leafe
>

Sheee-ittt!  There is a Cat7 spec!

http://www.connectworld.net/syscon/support.htm

1. What is the difference between CAT-5, CAT-5e, CAT-6, CAT-7...

The Simple Answer:
CAT-5 is rated to 100M
CAT-5e is rated to 350M <keep reading below, used for gigabit - Gil>
CAT-6 and CAT6e is rated to 550M or 1000M depending on your source
CAT-7 is supposedly rated to 700M or presumably 1000M

Today there is no approved CAT-6 or CAT-7. While some folks are selling
products they call Level 6 or 7, there aren't even specs for them, making
CAT-5e the best available option. CAT-6 cable is being made with 23 guage
conductor wire as opposed to the slightly smaller 24 guage for CAT-5e and
also has a separator to handle crosstalk better.

Both CAT-5 and CAT-5e have 100 ohm impedance and electrical characteristics
supporting transmissions up to 100 MHz. The differences between CAT-5 and
CAT-5e show in all aspects of performance: capacitance, frequency,
resistance, attenuation, and NEXT. CAT-5e components were designed with
high-speed gigabit Ethernet in mind. While CAT-5 components may function to
some degree in a gigabit Ethernet, they perform below standard during
high-data transfer scenarios. CAT-5e cables work with ATM and gigabit speed
products. Simply, if you are using a 100Mbps switch, get CAT-5e cable
instead of CAT-5.

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




> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Ed Leafe
> Sent: Saturday, September 13, 2008 12:18 PM
> To: [EMAIL PROTECTED]
> Subject: Re: [NF] Looking for small network
> gigabitrouterrecommendation(CLARIFIED)
>
>
> On Sep 13, 2008, at 11:16 AM, Gil Hale wrote:
>
> > I have always heard Cat5e was adequate for 1,000mps.  But Cat6 could
> > not
> > hurt, eh?  Once all my Cat5e stock is expended I am going to migrate
> > to
> > Cat6, just because.
>
>
>       Why bother with Cat6? Why not go straight to Cat7 and be
> prepared for
> the next decade?  ;-)
>
> -- Ed Leafe
>
>
>
>
>
[excessive quoting removed by server]

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