The following drawings are examples depicting cable faults:
CABLE OK
Cable is good.
4
5
3
6
1
2
7
8
OPEN PAIR
One specific pair is open. It may be one or two wires in the same pair.
One or more pairs may also be opened in the same cable.
4
5
3
6
1
2
7
8
SHORTED PAIR
One specific pair is shorted.
4
5
3
6
1
2
7
8
20
CHAPTER 5
WIRE PROTOCOL
(OK)
4
5
3
6
1
2
7
8
(OP)
4
5
3
6
1
2
7
8
(SH)
4
5
3
6
1
2
7
8
Message: Cable OK
Pair 1
Pair 2
Pair 3
Pair 4
Message:
Pair 1
Open at Near End
or Remote End
Pair 2
Pin 1 2
Pair 3
Pair 4
Message:
Pair 1
Short at Remote End
or Near End
Pair 2
Pin 1 2
Pair 3
Pair 4
Wire Mapper Pro Model CA7028