IBM Netfinity 3500, Руководство пользователя

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Appendix A. Ethernet Cable Specifications
This appendix contains the specifications for the unshielded
twisted-pair (UTP) cables that can be used to connect the server to
an IEEE Standard 802.3 network.
The Ethernet controller on your system board provides 10BASE-T
and 100BASE-TX support through the RJ-45 connector on the back
of your server. When you connect your server to the network, the
Ethernet controller automatically detects the data-transfer rate
(10 Mbps or 100 Mbps) on the network and then sets the controller
to operate at the appropriate rate.
The Ethernet controller supports the auto-detection mode only.
When you install your device drivers and configure the Ethernet
controller for use with your operating system, do not select the
10BASE-T mode. To ensure proper operation of your controller,
always select the default parameters provided.
The following information describes the specifications for the
unshielded twisted-pair (UTP) cable that can be used to connect the
server to an IEEE Standard 802.3 network.
To connect the server 10BASE-T or 100BASE-TX port to a 10BASE-T
or 100BASE-TX port on a repeater, use a UTP cable with RJ-45
connectors at both ends. An EIA/TIA-568 Category 5 cable must be
used for 10BASE-T and 100BASE-TX.
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.
The cables used in 10BASE-T or 100BASE-TX link segments do not
require grounding. However, all devices connected to the cables
must be grounded.
Connect the appropriate type of UTP cable to the repeater.
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If the port on the repeater is a crossover port (also called an
MDI-X port), use a UTP cable that is wired as a straight-through
cable.
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Copyright IBM Corp. 1998
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