IBM xSeries 342 2RX Maintenance Manual

Contents

USB-port connectorsEach USB port has an external connector on the rear of the server for attachingUSB compatible devices.1 4The following table shows the pin-number assignments for the USB-portconnectors on the rear of your server.Table 9. USB-port connector pin-number assignmentsPin Signal1 VCC + 5 V VCC2 -Data3 +Data4 GroundEthernet portYour server comes with an integrated Ethernet controller. This controller providesan interface for connecting to 10-Mbps or 100-Mbps networks and providesfull-duplex (FDX) capability, which enables simultaneous transmission andreception 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 your server.Note: The 100BASE-TX Fast Ethernet standard requires that the cabling in thenetwork be Category 5 or higher.Configuring the Ethernet controllerWhen you connect your server to the network, the Ethernet controllerautomatically detects the data-transfer rate (10 Mbps or 100 Mbps) on the networkand then sets the controller to operate at the appropriate rate. That is, the Ethernetcontroller will adjust to the network data rate, whether the data rate is standardEthernet (10BASE-T), Fast Ethernet (100BASE-TX), half duplex (HDX), or fullduplex (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 anyjumpers or configure the controller for your operating system before you use theEthernet controller. However, you must install a device driver to enable youroperating system to address the Ethernet controller. The device drivers areprovided on the ServerGuide CDs.Failover for redundant EthernetThe IBM Netfinity 10/100 Fault Tolerant Adapter is an optional redundant networkinterface card (NIC adapter) that you can install in your server. If you install thisNIC adapter and connect it to the same logical segment as the primary Ethernetcontroller, you can configure the server to support a failover function. You canconfigure either the integrated Ethernet controller or the NIC adapter as theprimary Ethernet controller. In failover mode, if the primary Ethernet controllerdetects a link failure, all Ethernet traffic associated with it is switched to theredundant (secondary) controller. This switching occurs without any userintervention. When the primary link is restored to an operational state, theInstalling options 69