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Appendix C
Measurement Methods and Limits
C-6
EINBETTENEINBETTENEINBETTENReturn Loss
Return Loss is the ratio of reflected to transmitted signal. Return Loss (worst pair-
to-pair).
ANSI/TIA/EIA
Frequency
(MHz/dB)
Permanent Channel Permanent Channel Permanent Channel Permanent Channel
1.00 15.00 15.00 15.00 15.00 17.00 17.00 19.10 19.00
4.00 15.00 15.00 15.00 15.00 17.00 17.00 21.00 19.00
8.00 15.00 15.00 15.00 15.00 17.00 17.00 - -
10.00 15.00 15.00 15.00 15.00 17.00 17.00 - -
16.00 15.00 15.00 15.00 15.00 17.00 17.00 20.00 18.00
20.00 15.00 15.00 17.00 17.00 19.50 17.50
25.00 14.30 14.00 16.32 16.03 19.00 17.00
31.25 13.60 13.10 15.64 15.06 18.50 16.50
62.50 11.50 10.10 13.54 12.05 16.10 14.10
100.00 10.10 8.00 12.11 10.01 14.00 12.00
155.52 11.00 9.00
250.00 10.00 8.00
Category 3 Category 5 Category 5e Category 6 (Draft 9)
ANSI/TIA/EIA568/TSB67
ANSI/TIA/EIA568/TSB67/95 ANSI/TIA/EIA568/TSB67/95
ANSI/TIA/EIA568
ISO/AS/NZS
Frequency
(MHz/dB) Permanent Channel Permanent Channel Permanent Channel Permanent Channel
1.00 15.00 15.00 17.00 17.00 15.00 15.00 19.00 19.00
4.00 15.00 15.00 17.00 17.00 15.00 15.00 19.00 19.00
8.00 15.00 15.00 17.00 17.00 15.00 15.00 19.00 19.00
10.00 15.00 15.00 17.00 17.00 15.00 15.00 19.00 19.00
16.00 15.00 15.00 17.00 17.00 15.00 15.00 19.00 19.00
20.00 17.00 17.00 15.00 15.00 19.00 19.00
25.00 16.30 16.00 14.30 14.00 18.30 18.00
31.25 15.60 15.10 13.60 13.10 17.60 17.10
62.50 13.50 12.10 11.50 10.10 15.50 14.10
100.00 12.10 10.00 10.10 8.00 14.10 12.00
155.52 12.80 10.10
250.00 11.30 8.00
Proposed
ISO Class-C ISO Class-D ISO Class-E
ISO Class-D 11801
AS/NZS 3080
EINBETTEN
Note: Return Loss applies only to TSB95.EINBETTEN