User Manual

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Appendix A: Diagnosing Wiremap Faults
Appendix A lists the typical causes of wiremap failures.
Open
• Wires connected to wrong pins at connector or
punchdown blocks
• Faulty connections
• Damaged connector
• Damaged cable
• Wrong pairs selected in setup
• Wrong application for cable
Split Pair
Wires connected to wrong pins at connector or punchdown
block.
Reversed Pairs
Wires connected to wrong pins at connector or punchdown
block.
Crossed Pairs
• Wires connected to wrong pins at connector or
punchdown block.
• Mix of 568A and 568B wiring standards (12 and 36
crossed).
• Crossover cables used where not needed (12 and 36
crossed).