Pinouts of Connectors

Ethernet 10/100Base-T connector pinout

layout
schematic diagram
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Same connector and pinout for both 10Base-T and 100Base-TX.

8 pin RJ45 FEMALE connector pin-out & layout
8 pin RJ45 FEMALE connector  at the network interface cards/hubs
Pin Name Description EIA/TIA 568A EIA/TIA 568B or AT&T 258A
1 TX+ Tranceive Data+ White with green strip White with orange stripe
2 TX- Tranceive Data- Green with white stripe or solid green Orange with white stripe or solid orange
3 RX+ Receive Data+ White with orange stripe White with green stripe
4 n/c Not connected Blue with white stripe or solid blue Blue with white stripe or solid blue
5 n/c Not connected White with blue stripe White with blue stripe
6 RX- Receive Data- Orange with white stripe or solid orange Green with white stripe or solid
7 n/c Not connected White with brown strip or solid brown White with brown strip or solid brown
8 n/c Not connected Brown with white stripe or solid brown. Brown with white stripe or solid brown.

Note: TX & RX are swapped on Hub´s. Also, please note that it is very important that a single pair be used for pins 3 and 6. If one conductor from one pair is used for pin 3 and a conductor from another pair is used for pin 6, performance will degrade.

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8 pin RJ45 MALE connector pin-outs & layouts
8 pin RJ45 MALE connector  at the cables
Pinouts.ru > Pinouts of local network connectors >  Pinout of Ethernet 10/100Base-T connector and layout of 8 pin RJ45 FEMALE connector and 8 pin RJ45 MALE connector

Source(s): Hardware Book, Jeffrey R. Broido
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