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Whats The Difference Between CAT5 & CAT6?

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Old 10 August 2005, 12:18 PM
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ian_sadler
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Question Whats The Difference Between CAT5 & CAT6?

Old 10 August 2005, 12:34 PM
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David_Wallis
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pinched of the net..

Code:
Category	Type	Spectral B/W	Length	LAN Applications	Notes
Cat3	UTP	16 MHz	100m	10Base-T, 4Mbps	Telephone Cables
Cat4	UTP	20 MHz	100m	16Mbps	Rarely Used
Cat5	UTP	100MHz	100m	100Base-Tx,ATM, CDDI	LAN
Cat5e	UTP	100MHz	100m	100Base-T	LAN
Cat6	UTP	250MHz	100m	1000Base-T	LAN
Cat7	ScTP	600MHz	100m	1000Base-T	LAN
CAT 5, 5e, 6 Detailed Cable Specifications
Code:
				CAT 5			CAT 5e	 	CAT 6 
Frequency			100 MHz			100 MHz		250 MHz
Attenuation (Min. at 100 MHz)	22 dB			22 dB		19.8 dB
Characteristic Impedance	100 ohms ± 15%		100 ohms ± 15%	100 ohms ± 15%
NEXT (Min. at 100 MHz)		32.3 dB			35.3 dB		44.3 dB
PS-NEXT (Min. at 100 MHz)	no specification	32.3 dB		42.3 dB
ELFEXT (Min. at 100 MHz)	no specification	23.8 dB		27.8 dB
PS-ELFEXT (Min. at 100 MHz)	no specification	20.8 dB		24.8 dB
Return Loss (Min. at 100 MHz)	16.0 dB			20.1 dB		20.1 dB
Delay Skew (Max. per 100 m)	no specification	45 ns		45 ns

Basically use cat6 and above for gigabit / 10GBaseT

David

Last edited by David_Wallis; 10 August 2005 at 12:36 PM.
Old 10 August 2005, 05:25 PM
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Chris L
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Ian - if you want that in English - just let us know

Nice find David
Old 10 August 2005, 06:03 PM
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David_Wallis
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Well he did ask

in english, most cat6 seems to be purple these days


David
Old 10 August 2005, 07:26 PM
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J4CKO
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Sounds like a Doctor Suess line that !

'Oh mercy me , how can it be, here's Cat1, Cat2 and Cat3'
'And later on, all full of tricks arrive cat's 4, 5 and 6'

And yes I have been drinking.
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