Auto CQ/Video-DSL Rate Prediction
Copper, VDSL2, ADSL2+, and IP Triple-Play Test Set
27
Configuring CQ Auto Tests
³
Isolation
measures the quality of insulation or sheathing for the copper
pairs.
³
Load Coil Detection
detects the presence of load coils in the line.
Toggle between
Enable
and
Disable
.
³
Power Influence
measures the effects that 50 Hz and 60 Hz powerline
(AC Mains) interference has on the circuit under test. Toggle between
Enable
and
Disable
.
³
VF Longitudinal Balance
is very useful in identifying loops that will
suffer from crosstalk. Toggle between
Enable
and
Disable
.
³
VF Noise
measures VF noise in the line. Toggle between
Enable
and
Disable
.
³
VF Impulse Noise
measures the random occurrences of energy spikes
in the voice frequency range that have random amplitude and spectral
content.
To select tests:
1.
Press the up/down arrow keys to highlight a desired test.
2.
Press
to toggle between
Enable
and
Disable
.
3.
Select other tests as required.
Содержание AXS-200/635
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