CAT 5e 6 6a 7 8 Ethernet Cable

Inpedance

100+/-15 ohms

Mutual capacitance, max.ohms/1000ft

17.1

DC resistance ,max.ohms/1000ft

28.6

DC resistance USGalance of a pair

5%max

Capacitance unbalance(pair to ground)

330pf/100m max

Propagation delay skew

45ns/100m

Normal velocity of propagation

66% at 100MHz

Attenuation to crosstalk ratio

at 100MHz, typical 22.5dB

at 100MHz, typical 13.4dB

at 100MHz, typical 7.0dB

Frequency

ATT MAX

NEXT

ACR

PS.NEXT

PS.ACR

ELFEXT

PS.ELFEXT

RL

MHz

(dB/100m)

MIN.(dB)

MIN.(dB)

MIN.(dB)

MIN.(dB)

MIN.(dB/100m)

MIN.(dB/100m)

MIN.(dB)

1

2.4

74.3

71.9

72.3

69.9

67.8

64.8

20

4

4.6

66.3

60.7

63.3

58.7

55.7

52.7

23

8

6.4

60.8

54.4

58.8

52.4

49.7

46.7

24.5

10

7.2

59.3

52.1

57.3

50.1

47.8

44.8

25

16

9.1

56.3

47.2

54.3

45.2

43.7

40.7

25

20

10.2

54.8

44.6

52.8

42.6

41.7

38.7

25

25

11.4

53.3

41.9

51.3

39.9

39.8

36.8

24.2

31.25

12.8

51.9

39.1

49.9

37.1

37.9

34.9

23.3

62.5

18.5

47.4

28.9

45.1

26.9

31.8

28.8

20.7

100

23.8

44.3

20.5

42.3

18.5

27.8

24.8

19

155

30.1

41.5

11.4

39.5

9.4

23.9

20.9

17.4

200

34.8

39.8

5

37.8

3

21.7

18.7

16.4

250

39.4

38.3

0

36.3

NA

19.8

16.8

15.6