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NOTES:
Appendix A
Power sum ACR (PSACR)
Computed by subtracting the measured attenuation from the computed power
sum near end crosstalk (PSNEXT) at each frequency point.
Resistance
Measures the DC loop resistance for each pair in the tested cabling run.
Range
Accuracy
Ambient noise
Measures the ambient noise spectrum of each pair immediately after the
autotest.
Frequency Range
Sensitivity
Accuracy
1. Fast check mode setting forces frequency step to 1MHz.
2. TIA level III measurement parameter and tester accuracy requirements
per TIA Category 6 Draft – Addendum to TIA-568-B and ISO/IEC
61935-1 draft amendment 1, 10/99.
5 – 1,000 W
± 5%
1 – 350 MHz
0.1 mV RMS
± 5%
Specifications 143
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