
Testing Twisted Pair Cabling
15
Split Pair
Figure 10 shows a split pair on 3,6 and 4,5. The split pair
flashes to indicate the fault. The cable length is 75.4 m.
In a split pair, continuity from end to end is correct, but is
made with wires from different pairs. Split pairs cause
excessive crosstalk that interferes with network operation.
Note
Cables with untwisted pairs, such as telephone
cords, typically show split pairs due to excessive
crosstalk.
egk10.eps
Figure 10. Split Pair
Split pair
icon
The split
pair flashes
Split pair wiring