Fluke DSX-600 CableAnalyzer - Causes of Cabling Faults; Common Fault Types

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For each of the required TIA and ISO structured cabling measurements, you will nd
troubleshooting tips to help quickly pinpoint the cause of failures when they occur. In
some instances, you will nd suggested reasons why the measurement does not fail in
cases you would expect to see a failure.
Wiremap
Causes of cabling faults
Test Result Possible Cause of Result
Open
• Wires broken by stress at connections
• Cables routed to wrong connection
• Wire is not punched down properly and does not make
contact in the IDC
• Damaged connector
• Cuts or breaks in cable
• Wires connected to wrong pins at connector or punch
block
• Application-specic cable (e.g. Ethernet using 1,2/3,6
only)
Short • Improper connector termination
• Damaged connector
• Conductive material stuck between pins at a connection
• Damage to cable
• Application specic cable (e.g. factory automation)
Reversed pair • Wires connected to wrong pins at connector or punch
block
Crossed pair • Wires connected to wrong pins at connector or punch
block
• Mix of 568A and 568B wiring standards (1,2 and 3,6
crossed)
• Crossover cables used (1,2 and 3,6 crossed)
Split pair • Wires connected to wrong pins at connector or punch
block