Ethernet, RJ45
Ethernet EIA/TIA-568A/B
Pin | Pair | Signal | Wire | Color | |||
---|---|---|---|---|---|---|---|
T568A | T568B | 10/100Base-T | 1000Base-T | T568A | T568B | ||
1 | 3 | 2 | TX+ | BI_DA+ | +/tip | ![]() white/green |
![]() white/orange |
2 | 3 | 2 | TX- | BI_DA- | -/ring | ![]() green |
![]() orange |
3 | 2 | 3 | RX+ | BI_DB+ | +/tip | ![]() white/orange |
![]() white/green |
4 | 1 | 1 | BI_DC+ | -/ring | ![]() blue |
![]() blue |
|
5 | 1 | 1 | BI_DC- | +/tip | ![]() white/blue |
![]() white/blue |
|
6 | 2 | 3 | RX- | BI_DB- | -/ring | ![]() orange |
![]() green |
7 | 4 | 4 | BI_DD+ | +/tip | ![]() white/brown |
![]() white/brown |
|
8 | 4 | 4 | BI_DD- | -/ring | ![]() brown |
![]() brown |
Direct Connection EIA/TIA-568A
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Direct Connection EIA/TIA-568B
![]() ![]() |
Cross-over cable pinouts
Cross-over cable EIA/TIA-568A/B (10Base-T, 100Base-TX)
![]() ![]() |
10BASE-T or 100BASE-TX crossover
Pin | Connection 1: T568A | Connection 2: T568B | ||||
---|---|---|---|---|---|---|
signal | pair | color | signal | pair | color | |
1 | BI_DA+ | 3 | ![]() white/green |
BI_DB+ | 2 | ![]() white/orange |
2 | BI_DA- | 3 | ![]() green |
BI_DB- | 2 | ![]() orange |
3 | BI_DB+ | 2 | ![]() white/orange |
BI_DA+ | 3 | ![]() white/green |
4 | 1 | ![]() blue |
1 | ![]() blue |
||
5 | 1 | ![]() white/blue |
1 | ![]() white/blue |
||
6 | BI_DB- | 2 | ![]() orange |
BI_DA- | 3 | ![]() green |
7 | 4 | ![]() white/brown |
4 | ![]() white/brown |
||
8 | 4 | ![]() brown |
4 | ![]() brown |
Gigabit T568A crossover
10BASE-T, 100BASE-TX, 100BASE-T4 or 1000BASE-T crossover
Pin | Connection 1: T568A | Connection 2: T568A Crossed | ||||
---|---|---|---|---|---|---|
signal | pair | color | signal | pair | color | |
1 | BI_DA+ | 3 | ![]() white/green |
BI_DB+ | 2 | ![]() white/orange |
2 | BI_DA- | 3 | ![]() green |
BI_DB- | 2 | ![]() orange |
3 | BI_DB+ | 2 | ![]() white/orange |
BI_DA+ | 3 | ![]() white/green |
4 | BI_DC+ | 1 | ![]() blue |
BI_DD+ | 4 | ![]() white/brown |
5 | BI_DC- | 1 | ![]() white/blue |
BI_DD- | 4 | ![]() brown |
6 | BI_DB- | 2 | ![]() orange |
BI_DA- | 3 | ![]() green |
7 | BI_DD+ | 4 | ![]() white/brown |
BI_DC+ | 1 | ![]() blue |
8 | BI_DD- | 4 | ![]() brown |
BI_DC- | 1 | ![]() white/blue |
Gigabit T568B crossover
10BASE-T, 100BASE-TX, 100BASE-T4 or 1000BASE-T crossover
Pin | Connection 1: T568B | Connection 2: T568B Crossed | ||||
---|---|---|---|---|---|---|
signal | pair | color | signal | pair | color | |
1 | BI_DA+ | 2 | ![]() white/orange |
BI_DB+ | 3 | ![]() white/green |
2 | BI_DA- | 2 | ![]() orange |
BI_DB- | 3 | ![]() green |
3 | BI_DB+ | 3 | ![]() white/green |
BI_DA+ | 2 | ![]() white/orange |
4 | BI_DC+ | 1 | ![]() blue |
BI_DD+ | 4 | ![]() white/brown |
5 | BI_DC- | 1 | ![]() white/blue |
BI_DD- | 4 | ![]() brown |
6 | BI_DB- | 3 | ![]() green |
BI_DA- | 2 | ![]() orange |
7 | BI_DD+ | 4 | ![]() white/brown |
BI_DC+ | 1 | ![]() blue |
8 | BI_DD- | 4 | ![]() brown |
BI_DC- | 1 | ![]() white/blue |

