An Installation Pocket Reference Guide.pdf - Anixter
An Installation Pocket Reference Guide.pdf - Anixter
An Installation Pocket Reference Guide.pdf - Anixter
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|3. Twisted-Pair Cable<br />
Testing<br />
Verification of the transmission performance of the installed cabling system is<br />
recommended by the ANSI/TIA 568-C.2 standard. The primary field test parameters<br />
for twisted-pair cabling systems include:<br />
• Impedance or return loss<br />
• Attenuation or insertion loss<br />
• Near-end crosstalk<br />
• Power-sum crosstalk<br />
• Attenuation-to-crosstalk ratio<br />
• Far-end crosstalk<br />
• Propagation delay and delay skew<br />
• Noise.<br />
Wire mapping is the most basic and obvious test for any twisted-pair cable<br />
installation. A proper wire-mapping tester can detect any of the following faults:<br />
• Open pair<br />
• Shorted pair<br />
• Short between pairs<br />
• Reversed pairs<br />
• Crossed pairs<br />
|30 1.800.ANIXTER
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