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USB-port connectors
Each USB port has an external connector on the rear of the server for attaching
USB compatible devices.
The following table shows the pin-number assignments for the USB-port connectors
on the rear of the server.
Table 20. USB-port connector pin-number assignments
Pin Signal
1 VCC
2 -Data
3 +Data
4 Ground
Ethernet port
The server comes with an integrated Ethernet controller. This controller provides an
interface for connecting to 10-Mbps or 100-Mbps networks and provides full-duplex
(FDX) capability, which enables simultaneous transmission and reception of data on
the Ethernet local area network (LAN).
To access the Ethernet port, connect a Category 3, 4 or 5 unshielded twisted-pair
(UTP) cable to the RJ-45 connector on the rear of the server.
Note: The 100BASE-TX Fast Ethernet standard requires that the cabling in the
network be Category 5 or higher.
The Ethernet (RJ-45) connector has two lights. The Ethernet link-status light is on
the left. When this green light is on, there is an active connection on the Ethernet
port. The Ethernet transmit/receive activity light on the right. When this amber light
is on, there is activity between the server and the network. These lights have the
same functions as the Ethernet link-status light and the Ethernet transmit/receive
activity light on the information panel (see “Information LED panel” on page 9).
Configuring the Ethernet controller
When you connect the 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. That is, the Ethernet controller 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 controller supports half-duplex (HDX) and full-duplex (FDX) modes at both
speeds.
The Ethernet controller is a PCI Plug and Play device. You do not need to set any
jumpers or configure the controller for your operating system before you use the
Ethernet controller. However, you must install a device driver to enable your
operating system to address the Ethernet controller. The device drivers are provided
on the ServerGuide CDs.
Failover for redundant Ethernet
The IBM 10/100 Fault Tolerant Adapter is an optional redundant network interface
card (NIC adapter) that you can install in the server. If you install this NIC adapter
and connect it to the same logical LAN segment as the primary Ethernet controller,
you can configure the server to support a failover function. You can configure either
the integrated Ethernet controller or the NIC adapter as the primary Ethernet
controller. In failover mode, if the primary Ethernet controller detects a link failure,
Installing options 83