IBM 86655RY - Netfinity 7600 - 8665, Hardware Maintenance Manual

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Installing options
89
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.
Ethernet port
Your 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.
Configuring the Ethernet controller
When you connect the server to the network, the Ethernet controller automatically
detects the data-transfer rate (10Mbps or 100Mbps) 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 the operating system before you use the
Ethernet controller. However, you must install a device driver to enable the operating
system to address the Ethernet controller. The device drivers are provided on the
ServerGuide CDs.
Failover for redundant Ethernet
The IBM Netfinity 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, all Ethernet traffic associated with it is switched to the redundant (secondary)
controller. This switching occurs without any user intervention. When the primary
link is restored to an operational state, the Ethernet traffic switches back to the
primary Ethernet controller. The switch back to the primary Ethernet controller can be
automatic or manually controlled, depending on the setup and operating system.
Table 16. USB-port connector pin-number assignments.
Pin Signal
1 VCC
2 -Data
3 +Data
4 Ground