IBM 847620U - Netfinity 3000 - 20U, Руководство по техническому обслуживанию аппаратной части, Страница: 167 / 270

Ethernet connector:
The system board in the
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 the 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 38 for
additional information about the Ethernet controller.
Table 11 shows the pin-number assignments for the RJ-45
connector. These assignments apply to both 10BASE-T
and 100BASE-TX devices.
10BASE-T or 100 BASE-TX
UTP Cable
RJ-45 Modular Plug Connector
1
2
3
Pins 6
Table 11. Ethernet Connector Pin-Number Assignments
Pin Signal Pin Signal
1 Transmit data
+
5 Reserved
2 Transmit data
−
6 Receive data
−
3 Receive data
+
7 Reserved
4 Reserved 8 Reserved
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