Datasheet

7 Operation on a VDSL Access
ARGUS 141 73
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The bands for upstream and downstream
change depending on the VDSL profile
(green display upstream, blue display
downstream, in this example DS1, US1,
DS2, US2, and DS3)
Display the bit distribution, 
e.g. bits transported per carrier frequency
(tone).
y-axis: bits per carrier frequency (tone)
x-axis: tones (carrier frequencies)
Based on the bit distribution, it is possible
to detect line disturbances (e.g. through
HDB3, HDSL, RF etc.) 
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DIsplay the signal-to-noise ratio for each
tone (downstream only, in this example
DS1, DS2, and DS3)
y-axis: SNR in dB
x-axis: tones (carrier frequencies)
It is possible to detect disturbances on the
individual tones (carrier frequencies) or
entire bands.
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Display of the quiet level noise (QLN) for
each tone
y-axis: QLN in dBm/Hz
x-axis: tones (carrier frequencies)
It is possible to detect disturbances on the
individual tones (carrier frequencies)
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The display of the upstream QLN for each
tone depends on the DSLAM (VTU-C). In
this example, a QLN per tone can be
seen in which the DSLAM has not sent
any information regarding the VTU-R.
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The ARGUS will return to the
previous display
Continuation on
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