Cables and Pinouts
The following figure illustrates how the pins on the RJ-45 connector are numbered. Be sure to hold the connectors in the same orientation when attaching the wires to the pins.
10/100BASE-TX Pin Assignments
Use unshielded twisted-pair (UTP) or shielded twisted-pair (STP) cable for RJ-45 connections: 100-ohm Category 3 or better cable for 10 Mbps connections, or 100-ohm Category 5 or better cable for 100 Mbps connections. Also be sure that the length of any twisted-pair connection does not exceed 100 meters (328 feet).
The RJ-45 port on the access point is wired with MDI pinouts. This means that you must use crossover cables for connections to PCs or servers, and straight-through cable for connections to switches or hubs. However, when connecting to devices that support automatic MDI/MDI-X pinout configuration, you can use either straight-through or crossover cable.
| 10/100BASE-TX MDI Port Pinouts |
Pin | | MDI Signal Name |
| | |
1 | | Transmit Data plus (TD+) |
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2 | | Transmit Data minus (TD-) |
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3 | | Receive Data plus (RD+) |
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4 | | GND (Positive Vport) |
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5 | | GND (Positive Vport) |
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6 | | Receive Data minus (RD-) |
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