EXFO VDSL2 - Manual (Page 40)

Auto CQ/Video-DSL Rate Prediction
32 AXS-200/635
Configuring CQ Auto Tests
WB Test Parameters
The WB Parameters tab allows you to
set up parameters used in the
wideband tests.
Each parameter is described below:
³
WB Noise Filter defines the level
of wideband noise filtering. The
available choices are: NONE,
50 kbit, ISDN-E, HDSL-F, ADSL-G,
ADSL, ADSL2+, VDSL, VDSL2-8,
VDSL2-12, VDSL2-17, or VDSL2-30.
Note: VDSL2-x filters are only available if VDSL2 is enabled in the software
options.
³
Bandwidth specifies the frequency range for the test: 2.2 MHz,
12 MHz, 17 MHz, or 30 MHz.
Note: Frequency bands in excess of 2.2 MHz are only displayed if VDSL2 is
enabled in the software options.
³
WB Termination defines if the unit uses normal test impedance
termination or high bridging impedance when the cable is active or
terminated by other external equipment. For normal test termination
select TERMINATED, otherwise select BRIDGING.
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WB Termination Impedance defines the impedance of the dummy
load connected to the line. Select one of the following: 100 Ohm or
135 Ohm.
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Imp. Noise Threshold(dBm) is the maximum impulse noise level.
Specify a value between -50 and 0 (-40 and 0 if any filter applied).
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Imp. Noise Measure. Time defines the time duration to measure
impulse noise. The available choices are: 1 minute, 5 minutes,
10 minutes, 15 minutes, 60 minutes, or 24 hours.