Ethernet Port - IBM eServer 240 xSeries User Reference Manual

Ethernet port

The system board in your 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 3, 4, or 5 unshielded twisted-pair (UTP) cable. The connector enables an
Ethernet network to attach to the internal transceiver in your server.
Note: The 100BASE-TX Fast Ethernet standard requires that the cabling in the
network be Category 5 or higher.
See "Configuring the Ethernet controller" on page 35 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
2
3
Pins 6
Table 10. Ethernet port pin-number assignments
Pin Signal
1 Transmit data+
2 Transmit data−
3 Receive data+
4 Reserved
10BASE-T or 100 BASE-TX
UTP Cable
RJ-45 Modular Plug Connector
Pin Signal
5 Reserved
6 Receive data−
7 Reserved
8 Reserved
Chapter 4. Installing options
97