User Manual

CableIQ Qualification Tester
Users Manual
28
Signal Performance Results
avv23f.eps
Note
Signal performance results for cables
less than 13 ft (4 m) long may be
unreliable.
A Qualified/unqualified result for the signal
performance. Signal performance includes
crosstalk, insertion loss, and return loss. For
1000BASE-T, ELFEXT (equal-level far-end
crosstalk) is also tested.
B Information about the signal performance:
• Qualified for <application name>: The cabling will support the
application.
• No Signal Performance tests needed for qualification: Appears
for the Telco and Wiremap only tests.
• Wiring fault! Not tested.: The tester does not evaluate signal
performance if there is a wiremap, length, or delay skew fault.
• Connection fault: A localized crosstalk fault was detected.
Localized faults are usually caused by bad connections. Check
the cabling at the location given. See the Appendix for other
causes of crosstalk faults.
• Distributed cable faults: Crosstalk or an impedance problem was
detected along most or all of the cabling. The cabling is of poor
quality or is the wrong category for the selected application.
-continued-
Figure 11. Signal Performance Results