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| Straight-Through
Cable Pin Out for T568A |
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| RJ45 Pin # |
Wire Color |
Wire
Diagram |
10Base-T
Signal |
1000Base-T Signal |
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| (T568A) |
(T568A) |
100Base-TX
Signal |
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| 1 |
White/Green |
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Transmit+ |
BI_DA+ |
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| 2 |
Green |
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Transmit- |
BI_DA- |
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| 3 |
White/Orange |
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Receive+ |
BI_DB+ |
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| 4 |
Blue |
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Unused |
BI_DC+ |
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| 5 |
White/Blue |
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Unused |
BI_DC- |
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| 6 |
Orange |
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Receive- |
BI_DB- |
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| 7 |
White/Brown |
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Unused |
BI_DD+ |
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| 8 |
Brown |
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Unused |
BI_DD |
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| Straight-Through
Cable Pin Out for T568B |
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| RJ45 Pin # |
Wire Color |
Wire
Diagram |
10Base-T
Signal |
1000Base-T Signal |
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| (T568B) |
(T568B) |
100Base-TX
Signal |
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| 1 |
White/Orange |
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Transmit+ |
BI_DA+ |
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| 2 |
Orange |
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Transmit- |
BI_DA- |
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| 3 |
White/Green |
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Receive+ |
BI_DB+ |
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| 4 |
Blue |
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Unused |
BI_DC+ |
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| 5 |
White/Blue |
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Unused |
BI_DC- |
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| 6 |
Green |
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Receive- |
BI_DB- |
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| 7 |
White/Brown |
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Unused |
BI_DD+ |
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| 8 |
Brown |
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Unused |
BI_DD- |
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| Cross Over
Cable Pin Outs |
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| RJ45
Pin # (END 1) |
Wire Color |
Diagram
End #1 |
RJ45 Pin #
(END 2) |
Wire Color |
Diagram End
#2 |
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| 1 |
White/Orange |
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1 |
White/Green |
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| 2 |
Orange |
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2 |
Green |
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| 3 |
White/Green |
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3 |
White/Orange |
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| 4 |
Blue |
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4 |
White/Brown |
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| 5 |
White/Blue |
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5 |
Brown |
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| 6 |
Green |
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6 |
Orange |
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| 7 |
White/Brown |
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7 |
Blue |
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| 8 |
Brown |
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8 |
White/Blue |
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| Power over
Ethernet Power Delivery (PoE) |
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| RJ45 Pin # |
Wire Color |
Wire
Diagram |
10Base-T
Signal |
PoE |
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| (T568A) |
(T568A) |
100Base-TX
Signal |
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| 1 |
White/Green |
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Transmit+ |
Mode A + |
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| 2 |
Green |
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Transmit- |
Mode A + |
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| 3 |
White/Orange |
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Receive+ |
Mode A - |
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| 4 |
Blue |
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Unused |
Mode B + |
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| 5 |
White/Blue |
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Unused |
Mode B + |
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| 6 |
Orange |
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Receive- |
Mode A - |
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| 7 |
White/Brown |
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Unused |
Mode B - |
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| 8 |
Brown |
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Unused |
Mode B - |
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| Protocol
Details: |
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Frequency
(MHz) |
Symbol
Encoding |
Signal Rate
(Mbaud) |
Symbol Rate |
Data
Encoding |
Data Bits
per Symbol |
Pairs per
Channel |
Pairs Used |
Minimum
Cable Category |
| 10BaseT |
10 |
Manchester |
10 |
10 |
None |
1 |
1 |
2 |
3 |
| 100BaseT4 |
12.5 |
Multi-level, 2T/Hz |
25 |
25 |
8B6T |
6-Aug |
3 |
4 |
3 |
| 100BaseTX |
31.25 |
MLT-3 |
125 |
125 |
4B5B |
5-Apr |
1 |
2 |
5 |
| 100BaseT2 |
12.5 |
PAM5x5 (2D-PAM5) |
25 |
12.5 |
None |
4 (2x2) |
2 |
2 |
3 |
| 1000BaseT |
31.25 |
4D-PAM5 |
125 |
31.25 |
None |
8 (4x2) |
4 |
4 |
5* |
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| Cable Category
Details: |
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| Cable
Category |
Rated
Frequency Bandwidth (MHz) |
Common
Uses |
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| 1 |
None |
Common Use |
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| 2 |
1 |
Telephone Wiring |
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| 3 |
16 |
Telephone Wiring, 10Base-T |
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| 4 |
20 |
Token-Ring, 10Base-T |
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| 5 |
100 |
100Base-TX, 10Base-T |
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| 5e |
100 |
1000Base-T, 100Base-TX |
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| 6 |
250 |
1000Base-T, 100Base-TX |
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| 6a* |
500 |
10GBase-T |
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| 7 |
600 |
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