Agilent Technologies N2600A WireScope 350 User's ... - messkom.de

�����������������
��������������������
5−8
The Data screens shown above include a table that displays details of the
test results for two twisted pairs of copper cable. To view the results for
a different set of twisted pairs, press it on the list.
Plots Screens
Plots screens display test results as plots on a graph. The examples
above show plots of a passing test, at left, and a failing one, at right. A
smooth red line on the plot indicates the limit boundary between passing
and failure. The Worst Margin button places a vertical line on the plot
at the frequency where the test results come closest to the pass/fail
boundary on passing test plots. On failing test plots, the Worst Margin
button places the line at the frequency where the results exceed the
acceptable limits the most. You can move the cursor around the plot
screen by pressing the area you want to see and then using the scroll
rocker to fine tune the location. The frequency of the cursor is displayed
and the values in the table correspond to the cursor location.
A chart below the plot shows detailed results of the current location of
the cursor at the WireScope and DualRemote, and the limits for the test
parameter, as follows:
Data: This is the worst case of the test results at the cursor location.
Limit: The limit of passing results, set when the test standard is chosen
at the cursor location.
Margin: The difference between the Data value and the Limit value at
the cursor location.
The plots are color coded for different wire pairs. The plot lines
displayed can be changed by pressing Settings and selecting All Plots,
All Local Plots, All Remote Plots, Worst Case Plot, or Select Single Plot.