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Chapter 40 Loop Diagnostic
After the DELT test completes, a summary report displays at the bottom of this screen. This is an
example.
Figure 234 Dual-End Loop Test Report
The following table describes the test report labels in this screen.
Table 172 Dual-End Loop Test Report
LABEL
Attainable net
data rate
Actual
Aggregate Tx
Power
Band Status
LATN
SATN
SNRM
Sub-Carrier
Status
Items
Direction
362
DESCRIPTION
The is the maximum upstream/downstream data rate for this line.
This is the total amount of upstream/downstream output power for this line.
The fields in this section display the status for upstream bands 0, 1, 2, 3, 4 (U0, U1, U2,
U3, U4) and downstream bands 1, 2, 3, 4 (D1, D2, D3, D4).
This field displays the line attenuation situation in each band. NA displays when the band is
not used.
This field displays the signal attenuation situation in each band. NA displays when the band
is not used.
This field displays signal-to-noise ratio margin in each band. NA displays when the band is
not used.
This section allows you to select the criteria and display you the statistics in a raw data list or
in a graph.
Select Hlog-ps (Channel Transfer Function per sub-carrier) to see the line's capability
against attenuation.
Select QLN-ps (Quiet Line Noise per sub-carrier) to see the line's noise level.
Select SNR-ps (Signal-to-Noise-Ratio per sub-carrier) to see the line's signal strength level
by calculating the ratio between the received signal power and the received noise power for
that sub-carrier.
Select Hlin-ps to see the line's capability against attenuation.
Select Downstream or Upstream for the direction.
VES1724-56 User's Guide
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