IBM eServer xSeries 135, User Reference Manual

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Chapter 5. Installing options
61
The following table shows the pin-number assignments for the auxiliary-device
connector on the end of the cable.
Ethernet ports
Your server comes with two integrated Ethernet controllers. These controllers provide
an interface for connecting to 10-Mbps or 100-Mbps networks and provide full-duplex
(FDX) capability, which enables simultaneous transmission and reception of data on
the Ethernet local area network (LAN).
To access the Ethernet ports, connect a Category 3, 4, or 5 unshielded twisted-pair
(UTP) cable to the RJ-45 connector on the rear of your server.
Note: The 100BASE-TX Fast Ethernet standard requires that the cabling in the
network be Category 5 or higher.
Configuring the Ethernet controllers
When you connect your server to the network, the Ethernet controllers automatically
detect the data-transfer rate (10Mbps or 100Mbps) on the network and then set the
controllers to operate at the appropriate rate. In addition, if the Ethernet ports that
your server is connected to support auto-negotiation, the Ethernet controllers will set
the appropriate duplex state. That is, the Ethernet controllers will adjust to the
network data rate, whether the data rate is standard Ethernet (10BASE-T), Fast
Ethernet (100BASE-TX), half duplex (HDX), or full duplex (FDX). The controllers
support half-duplex (HDX) and full-duplex (FDX) modes at both speeds.
The Ethernet controllers are PCI Plug and Play devices. You do not need to set any
jumpers or configure the controllers for your operating system before you use the
Ethernet controllers. However, you must install a device driver to enable your
operating system to address the Ethernet controllers.
Failover for redundant Ethernet
The IBM Netfinity 10/100 Ethernet Adapter or the IBM 10/100 EtherJet
™
PCI family
of adapters are optional redundant network interface cards (NIC adapter) that you
can install in your server. If you install this NIC adapter and connect it to the same
logical segment as the primary Ethernet controller, you can configure the server to
support a failover function. You can configure either one of the integrated Ethernet
controllers or the NIC adapter as the primary Ethernet controller. In failover mode, if
Table 9. Auxiliary or pointing-device connector (6 pin female) number assignments
Pin Signal
1 Data
2 Not connected
3 Ground
4 +5 V dc
5 Clock
6 Not connected
6
4
2
1
3
5