Connecting External Devices
When connecting external devices to your system, follow these guidelines:
l Most devices must be connected to a specific connector and device drivers must be installed before the device operates properly. (Device drivers are
normally included with your operating system software or with the device itself.) See the documentation that accompanied the device for specific
installation and configuration instructions.
l Always attach external devices while your system and the device are turned off. Next, turn on any external devices before turning on the system
(unless the documentation for the device specifies otherwise).
For information about individual connectors, see Jumpers and Connectors. For information about enabling, disabling, and configuring I/O ports and connectors,
see Using the System Setup Program.
Power Indicator Codes
The power button on the front panel controls the power to the system from the system's power supplies. The power indicator lights green when the system is
on.
The indicators on the redundant power supplies show whether power is present or whether a power fault has occurred (see Figure1-4). Table1-4 lists the
power supply indicator codes.
Table 1-4.RedundantPowerSupplyIndicators
Figure 1-4. Redundant Power Supply Indicators
NIC Indicator Codes
Each NIC on the back panel has an indicator that provides information on network activity and link status. See Figure1-5. Table1-5 lists the NIC indicator
codes.
Figure 1-5. NIC Indicators
