Agilent Technologies N2600A WireScope 350 User's ... - messkom.de
Agilent Technologies N2600A WireScope 350 User's ... - messkom.de
Agilent Technologies N2600A WireScope 350 User's ... - messkom.de
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Measurements<br />
8−2<br />
Wiremap<br />
Length<br />
The <strong>WireScope</strong> <strong>350</strong> makes the following test measurements.<br />
Wiremap testing checks for proper continuity and termination of cables.<br />
The test i<strong>de</strong>ntifies the following faults:<br />
• Short circuit<br />
• Open circuit<br />
• Reversed pairs<br />
• Transposed pairs<br />
• Split pairs<br />
• Shield continuity faults<br />
Length measurements <strong>de</strong>termine the electrical length of cable runs up to<br />
1100 feet (335 meters). Accurate length measurements require accurate<br />
NVP settings. Choosing a cable type from the <strong>WireScope</strong>’s database<br />
automatically loads NVP settings, or the NVP for a cable can be<br />
measured on a sample (see Learning the NVP of a Cable, on page 6-22).<br />
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Propagation Delay and Skew<br />
The Propagation Delay test measures the one-way propagation <strong>de</strong>lay<br />
over each pair of the tested cable run. Skew is the difference in<br />
propagation <strong>de</strong>lay between the pairs with the longest and shortest <strong>de</strong>lay<br />
in a cable.<br />
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