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VDV Wire Tester / English
4-3-4.Wiring and Display Examples for Data Cable
T568B Data Cable Properly Wired
• Pass appears on the display indicating a properly wired cable.
• The pin numbers on the top row agree with the bottom row indicating proper continuity.
Notes: Both the T568A and T568B wiring standard will test the same as long as the
same standard is used on both ends of the cable.
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
T568B Cross Over Data Cable Properly Wired
• The pairs cross over (transmit to receive and receive to transmit).
• Pass and X-over appear on the display and the pin numbers on the bottom row indicate
the corresponding cross over to the pin numbers on the top row.
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
T568B Data Cable With Split Pairs
• There is a split between the pairs on pins 3, 4 and 5, 6.
• Fail and Split appear on the display and the pin numbers with the split will flash.
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
14
T568B Data Cable With a Shorted and Open Pair
• Pins 1 and 2 are shorted and the pair on pins 7 and 8 is open.
• Fail, Short and Open appear on the display and the pins with wiring errors will flash.
• Dash lines will appear below the shorted pins and a blank space will appear below the
open pair.
1
1
Short
2
2
3
3
4
4
5
5
6
6
7
7
Open
8
8
T568B Data Cable With Reversed Pair and Crossed Connection
• The pair on pins 1 and 2 is reversed and the wires on pins 5 and 6 are crossed at one
end of the cable.
• Fail will appear on the display indicating a defective cable, the pins with wiring errors
will flash.
• Pins 2 and 1 shown below pins 1 and 2 indicate a reversal on the Orange pair.
• Pins 6 and 5 shown below 5 and 6 indicate a crossed connection.
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
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