Wb impulse noise, Dsl rate tests – EXFO VDSL2 User Manual
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Auto CQ/Video-DSL Rate Prediction
58
AXS-200/635
Running Video-DSL Rate Prediction Tests and Viewing Results
WB Impulse Noise
The WB Impulse Noise pane displays
the measured values from the
wideband impulse noise tests.
DSL Rate Tests
The DSL Rate tab allows you to view
the down/up stream Predicted Rate
based on measurements of PSD noise
and attenuation.
Configurable parameters include:
³
Annex lists the modes of available
ADSL Annexes from the
ITU standards.
³
A is ADSL service functioning over POTS.
³
B activates the ADSL functionality over ISDN.
³
L Mask 1 assumes an increase in ADSL2 range/distance.
³
L Mask 2 also extends the signal reach but can show an
improvement in the upstream data rate.
³
M allows increased upload speeds from 1 Mbps to 3.5 Mbps.
Available only for ADSL2 and ADSL2+.
³
Target SNR is the desired signal-to-noise ratio ranging from 0 to 31 dB.
Default value is 6 dB.