Appendix C
Measurement Methods and Limits
C-4
Power Sum NEXT
Measures the crosstalk effects of three transmitting pairs on the fourth pair in the
same sheath.
ANSI/TIA/EIA
Frequency
(MHz/dB) Permanent Channel Permanent Channel Permanent Channel Permanent Channel
1.00 57.00 57.00 62.00 62.00
2.00 - - - -
3.00 - - - -
4.00 52.00 50.90 61.80 60.50
8.00 47.10 45.70 - -
10.00 45.60 44.10 - -
16.00 42.20 40.60 52.20 50.60
20.00 40.70 39.00 50.70 49.00
25.00 39.10 37.30 49.10 47.30
31.25 37.50 35.70 47.60 45.80
62.50 32.60 30.60 42.70 40.60
100.00 29.30 27.10 39.30 37.10
200.00 34.30 31.90
250.00 32.70 30.20
ANSI/TIA/EIA568/TSB67 ANSI/TIA/EIA568/TSB67/95 ANSI/TIA/EIA568/TSB67/95
ANSI/TIA/EIA568
Category 3 Category 5 Category 5e Category 6 (Draft 9)
EINBETTEN
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