The iBook computer has a built-in 10/100 Mbps Ethernet port. The user can connect it to either a 10Base-T or a 100Base-TX hub; the port will automatically sense which type of hub is connected.
The connector for the Ethernet port is a shielded RJ-45 connector near the left rear corner of the computer. Table 3-3 shows the signals and pins on the connector.
When connecting two computers using Ethernet, a crossover cable is not required; circuits in the PHY detect the type of connection and switch the signal configuration as required. <8bat>u
The Ethernet interface in the iBook computer conforms to the ISO/IEC 802.3 specification, where applicable.