EXFO VDSL2 - Manual (Page 65)

Auto Tests
Copper, VDSL2, ADSL2+ and IP Triple-Play Test Set 57
Configuring Final/Active Pair Test
Thresholds 2
The Thresholds 2 tab displays the
threshold parameters for the Inactive
Pair Test. They are part of the CQ
profile and cannot be edited on this
pane.
³
Max. Loop Loss (dB) is the
maximum threshold loop loss
in dB.
³
Max. Power Influence (dBrnC) is
the maximum threshold power influence level on the circuit.
³
Max. Noise Metallic (dBrnC) is the maximum threshold noise energy
level on the circuit.
³
Min. Real Balance (dB) is the minimum difference between Power
Influence and Noise Metallic when the measured Power Influence is
> 70 dBrnC. If Power Influence is < 70 dBrnC, N/A is displayed.
³
Min. Long Balance (dB) is the minimum voice frequency threshold
longitudinal balance level.
³
Min. Metallic Insulation (MOhm) are the minimum threshold
resistance values for the circuit.
³
Max. Opens Variance (%) is the maximum capacitance balance
percentage.