20
Wire Mapper Pro Model CA7028
CHAPTER 5
WIRE PROTOCOL
The following drawings are examples depicting cable faults:
CABLE OK
(OK)
Cable is good.
Pair 1
4
5
3
6
1
2
7
8
4
5
3
6
1
2
7
8
Pair 2
Pair 3
Pair 4
OPEN PAIR
(OP)
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
4
5
3
6
1
2
7
8
Pair 1
Pair 2
Pair 3
Pair 4
SHORTED PAIR
(SH)
One specific pair is shorted.
4
5
3
6
1
2
7
8
4
5
3
6
1
2
7
8
Pair 1
Pair 2
Pair 3
Pair 4
Message: Cable OK
Message:
Open at Near End
or Remote End
Pin 1 2
Message:
Short at Remote End
or Near End
Pin 1 2
