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CAT5, CAT5e, and CAT6 UTP (Solid Cable) Specifications Comparison

The following chart shows the differences between CAT5, CAT5E, AND CAT6 UTP Cables

 

Category 5

Category 5e

Category 6

Frequency

100 MHz

100 MHz

250 MHz

Return Loss (Min. at 100MHz)

16.0 dB

20.1 dB

20.1 dB

Characteristic Impedance

100 ohms ± 15%

100 ohms ± 15%

100 ohms ± 15%

Attenuation (Min. at 100 MHz)

22 dB

22 dB

19.8 dB

Next (Min. at 100MHz)

32.3 dB

35.3 dB

44.3 dB

PS-Next (Min. at 100MHz)

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

Delay Skew (Max. per 100 m)

no specification

45 ns

45 ns

 

 

 

 

 

 

 

Specifications for Cat3, Cat4, Cat5, Cat5e, Cat6, and Cat7

Category

Type

Spectral R/W

Length

Lan Applications

Notes

CAT3

UTP

16MHz

100m

10Base-T, 4Mbps

For telephone

CAT4

UTP

20MHz

100m

16Mbps

Rare

CAT5

UTP

100MHz

100m

100Base-T, ATM, CDDI

LAN Use

CAT5e

UTP

100MHz

100m

100Base-T

LAN Use

CAT6

UTP

250MHz

100m

 

Emerging

CAT7

ScTP

600MHz

100m

 

 

 

Gigabit Specs – Distances

Copy tables 1,2,3 from this page please.

http://www.hp.com/rnd/pdfs/10gig_cabling_technical_brief.pdf


 


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