LanTEK® II Series Manual - Ideal Industries Inc.
LanTEK® II Series Manual - Ideal Industries Inc.
LanTEK® II Series Manual - Ideal Industries Inc.
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Chapter 6<br />
Structured cabling testing<br />
Depending on cable type and specified test standard, the following single test analyses are<br />
available:<br />
Wiremap Resistance Length<br />
Capacitance NEXT Loss/Insertion Loss<br />
ACR-N (ACR) Return loss Impedance<br />
Delay and Skew Power Sum NEXT Power Sum ACR-N (Power Sum ACR)<br />
Margin ACR-F (ELFEXT) Power Sum ACR-F (Power Sum ELFEXT)<br />
NOTE:<br />
The following tests do not require a Remote handset (RH): Resistance, Length,<br />
Capacitance, Impedance, Delay and Skew.<br />
6.6. Wiremap Test<br />
With the aid of Wiremap tests it is possible to pinpoint short circuits, interrupts and incorrect<br />
wiring. To facilitate evaluation, the test results are displayed in graph format.<br />
Illustration 6.6. Wiremap Test<br />
An error indicated by the Wiremap test should always be corrected first, since it will cause<br />
errors in other tests. An unwired contact can cause the tests for DC loop resistance and loss<br />
to receive a failing grade as well. An interrupt can also lead to a zero result when testing<br />
capacitance, resulting in failed NEXT measuring values.<br />
The Wiremap test ensures the following minimum thresholds for fault recognition (based on<br />
four wire pairs, optional shield):<br />
‣ All Wiremap errors or combined Wiremap errors are indicated as errors in the Wiremap<br />
diagram.<br />
‣ All combinations of up to three interrupts, short circuits or reversed connections are<br />
correctly detected.<br />
‣ In case of interrupts and short circuits, the cable end at which the error occurred is<br />
indicated (on Autotest screen for length measurement).<br />
‣ Split wire pairs (Split Pairs) are detected by specific patterns of contradictory NEXT values<br />
(Near End Cross-Talk).<br />
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