EXFO VDSL2 - Manual (Page 44)

Auto CQ/Video-DSL Rate Prediction
36 AXS-200/635
Configuring CQ Auto Tests
Thresholds 2
The Thresholds 2 tab allows you to set
additional threshold values.
Each parameter is described below:
³
Min. VF Long. Balance(dB)
defines the minimum voice
frequency threshold longitudinal
balance level. Specify a value
between 10 and 80.
³
Max. VF RMS Noise defines the maximum threshold RMS noise energy
level. Specify a value between -90 and 10 dBm if the ITU standard is
used. Specify a value between 0 and 100 dBrn if the ANSI standard is
used.
³
Max. VF Power Influence defines the maximum threshold power
influence level on the circuit. Specify a value between -90 and 20 dBm
if the ITU standard is used. Specify a value between 0 and 110 dBrnC if
the ANSI standard is used.
³
Min. WB Long. Balance(dB) defines the minimum threshold
wideband longitudinal balance level. Specify a value between
10 and 80.
³
Attenuation(dB) defines the threshold wideband attenuation level.
Specify a value between 0 and 80.
To set a threshold value:
1. Press the up/down arrow keys to highlight the desired parameter.
2. Press to select the value.
3. Press the left arrow key to erase the existing value, and then use the
alphanumeric keypad to enter a value. To cancel the entry, press .
4. Press to accept the value.