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Autotest
Autotest Results for Twisted Pair Cable
3
3-13
Pressing @ View Plot produces the NEXT plot screen. Figure 3-4 shows
an example of the screen and Table 3-5 describes the items on the screen.
6
5
4
3
2
1
gc11c.eps
Figure 3-4. The NEXT Plot Screen
Table 3-5. Items on the NEXT Plot Screen
Item Description
1
The cable pairs relevant to the plot.
2
Frequency range in MHz of the NEXT test.
3
Margin is the difference between the limit and measured values plotted at the cursor’s
position. Use L R to move the cursor left or right. If you move the cursor beyond the highest
test frequency specified by the selected test standard, the readout shows the NEXT value at
the cursor’s position.
4
The limits for NEXT, as defined by the selected test standard. A crosshair is shown if the
limit is defined for only one frequency.
5
Decibels of crosstalk attenuation (NEXT) between the cable pairs.
6
The measured NEXT for the cable pairs.