IBM 847651U Handbook - Page 177
Ethernet connector, The 10BASE-T Ethernet and the 100BASE-TX Fast Ethernet cabling
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Page 177 highlights
Connecting external options Ethernet connector The system board in your Netfinity 3000 server contains an Ethernet controller. The controller has an external RJ-45 connector on the rear of the server that is used with a Category 5 twisted-pair cable. Through this connector, you can attach an Ethernet network cable to the internal transceiver in your server. Attention: The 10BASE-T Ethernet and the 100BASE-TX Fast Ethernet cabling in the network must be Category 5 or higher to meet various standards, including electromagnetic compatibility. See "Configuring the Ethernet controller" on page 59 for additional information about the Ethernet controller. Table 10 shows the pin-number assignments for the RJ-45 connector. These assignments apply to both 10BASE-T and 100BASE-TX devices. 1 23 Pins 6 10BASE-T or 100 BASE-TX UTP Cable RJ-45 Modular Plug Connector Table 10. Ethernet connector pin-number assignments Pin Signal Pin Signal 1 Transmit data+ 2 Transmit data− 3 Receive data+ 4 Reserved 5 Reserved 6 Receive data− 7 Reserved 8 Reserved Chapter 4. Installing options 143