IBM 866631Y - Netfinity 7100 - 8666, Hardware Maintenance Manual

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The following table shows the pin-number assignments for the USB-port
connectors on the rear of the server.
Table 16. 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.
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 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 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.
Note that only one controller in the redundant pair is active at any given time. For
example, if the primary Ethernet controller is active, then the secondary Ethernet
controller cannot be used for any other network operation.
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Hardware Maintenance Manual: Netfinity 7100 – Type 8666