Fluke DSP-2000 Manual do Utilizador Página 113

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7-1
Chapter 7
Basic Cable Testing
Chapter 7 provides the following information:
A description of LAN cable construction.
Definitions and explanations of attenuation, noise, characteristic impedance,
crosstalk, near-end crosstalk (NEXT), NVP, ACR, and RL.
Explanations of the TDR and TDX analyzer tests and plots.
Basic troubleshooting procedures for LAN cable.
LAN Cable Construction
LAN cables have a number of characteristics in common with other types of
electrical cables. All electrical cables have continuity, which means that they
serve as a complete path for electrical current flow. Each end of a cable has some
type of connector for connecting the cable to the appropriate electrical device.
Cables with multiple wires usually have a pin assignment that describes how the
wires are arranged in the connectors.
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