Fluke DSP-2000 Manual de usuario Pagina 136

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DSP-100/2000
Users Manual
7-24
Table 7-1. Identifying Cable Faults (continued)
Test Failure Likely Causes of Failure
Wire map: short Wires connected to wrong pins at connector or punchdown blocks.
Conductive material stuck between pins at a connection.
Damage to cable insulation.
NEXT Excessive untwisting of pairs at connection.
Insufficient quality of connecting hardware.
Damage to cable (pinches, kinks, etc.)
Damaged connector
Insufficient cable quality.
Impedance anomaly detected Poor connection between two lengths of cable.
Damage to cable (pinches, kinks, etc.)
Taps into wire pair. (Twisted pair cable should never be tapped.)
Excessive loading at coaxial cable tap.
Mismatch of cable types.
Incorrect terminator value.
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