Guide to LAN Wiring Schemes & Configurations
The diagrams below represent modular sockets viewed from the front. The sequence of wire colours is the same for the modular cord (connecting the socket to the device), if the cord is viewed from the gold-contact side. Following these standards is critical for network performance and interoperability.
10Base-T Wiring
| Pin | Colour |
|---|---|
| 1 | Blue/White |
| 2 | Blue |
| 3 | Orange/White |
| 6 | Orange |
T568A Wiring
| Pin | Colour |
|---|---|
| 1 | Green/White |
| 2 | Green |
| 3 | Orange/White |
| 4 | Blue |
| 5 | Blue/White |
| 6 | Orange |
| 7 | Brown/White |
| 8 | Brown |
T568B Wiring
| Pin | Colour |
|---|---|
| 1 | Orange/White |
| 2 | Orange |
| 3 | Green/White |
| 4 | Blue |
| 5 | Blue/White |
| 6 | Green |
| 7 | Brown/White |
| 8 | Brown |
Token Ring Wiring
| Pin | Colour |
|---|---|
| 3 | Orange/White |
| 4 | Blue |
| 5 | Blue/White |
| 6 | Orange |
TP-PMD Wiring
| Pin | Colour |
|---|---|
| 1 | Blue/White |
| 2 | Blue |
| 7 | Orange/White |
| 8 | Orange |
USOC Wiring
| Pin | Colour |
|---|---|
| 1 | Green/White |
| 2 | Orange/White |
| 3 | Blue |
| 4 | Blue/White |
| 5 | Orange |
| 6 | Green |
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