Versiv Series Cabling Certification Product Family
Technical Reference Handbook
200
The HDTDX Analyzer
While NEXT test results shows crosstalk signals relative to
frequency, the HDTDX
™
(High-Definition Time Domain Crosstalk)
analyzer shows crosstalk signals relative to their distance from the
tester. The HDTDX plot shows the locations and amplitudes of
crosstalk signals to help you find the causes of NEXT and ACR-F
failures.
After an Autotest, you can see HDTDX plot if the Autotest had a
FAIL, FAIL* or PASS* result, or if HDTDX/HDTDR on the TEST
SETUP screen was set to All Autotests when you did the test.
To see the HDTDX plot for an Autotest, tap the DIAGNOSTIC tab
or the FAULT INFO tab on the Autotest results screen, then tap
HDTDX ANALYZER. Figure 88 shows an example of an HDTDX
plot. Figure 89 shows how some common faults appear on HDTDX
plots.
To get HDTDX analyzer results you can also tap Tools >
Diagnostics, but you cannot save these results.
Note
If Store Plot Data is off, the tester does not include
the HDTDX plot with results you save.
To zoom in and out, use the pinch, reverse-pinch, and
double-tap gestures on the touchscreen. You can also use
the zoom controls to change the magnification on the
distance and amplitude scales independently. See Figure 5
on page 24.
Note
For HDTDX plots for short cables such as patch cords,
the tester does not change the magnification for the
distance (horizontal) scale.
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