REVERSED PAIR
(RP)
The wires in one specific pair are Reversed at one end.
One or more pairs may be reversed in the same cable.
4
4
Pair 1
5
5
3
3
Pair 2
6
6
1
1
Pair 3
2
2
7
7
Pair 4
8
8
SHORTED WIRES
(SW)
Two wires from different pairs are shorted.
Two or more wires and pairs may be affected in the same cable.
4
4
Pair 1
5
5
3
3
Pair 2
6
6
1
1
Pair 3
2
2
7
7
Pair 4
8
8
CROSSED WIRES
(CW)
Two wires from different pairs are crossed at one end.
Two or more pairs may have wires crossed with another pair.
4
4
Pair 1
5
5
3
3
Pair 2
6
6
1
1
Pair 3
2
2
7
7
Pair 4
8
8
Message:
Reversed pair
Pin 3 6
Message:
Short at Remote End
or Near End
Pin 2 3
Message:
Crossed Wires
pin 3 5 at Remote
End or Near End
42
CROSSED PAIRS
(CP)
Two pairs are crossed at one end.
Two or more pairs may be crossed in the same cable.
4
4
Pair 1
5
5
3
3
Pair 2
6
6
1
1
Pair 3
2
2
7
7
Pair 4
8
8
SPLIT PAIRS (SP)
One pair uses one wire from another pair. The cable will work, but cross-talk may occur.
Two or more pairs in the same cable may be split.
4
4
Pair 1
5
5
3
3
Pair 2
6
6
1
1
Pair 3
2
2
7
7
Pair 4
8
8
Message:
Crossed Pairs
Pin 1 2 7 8
Message:
Split Pairs
Pin 2 7
43