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Universal Serial Bus ports
Your server has four Universal Serial Bus (USB) ports, which are configured
automatically. USB is a serial interface standard for telephony and multimedia
devices. It uses Plug and Play technology to determine the type of device that is
attached to the connector.
Notes:
1. If you attach a standard (non-USB) keyboard to the keyboard connector, the
2. If you install a USB keyboard that has a mouse port, the USB keyboard
3. Check to make sure that your NOS supports USB devices.
4. For additional information about USB devices, go to http://www.usb.org/.
USB cables and hubs
You need a 4-pin cable to connect devices to USB 1, or USB 2, USB 3, or USB 4.
If you plan to attach more than four USB devices, you must use a hub to connect
the devices. The hub provides multiple connectors for attaching additional external
USB devices.
USB technology provides up to 12 MBps speed with a maximum of 127 external
devices and a maximum signal distance of five meters (16 ft) per segment.
Note: After installing a USB keyboard, you might need to use the
USB-port connectors
Each USB port has an external connector on the rear of the server for attaching
USB compatible devices.
The following illustration shows the pin-number assignments for the USB ports on
the rear of your server.
Gigabit Ethernet port
Your server comes with an integrated Gigabit Ethernet controller. This controller
provides an interface for connecting to 10-Mbps, 100-Mbps, or 1000-Mbps networks
and provides full-duplex (FDX) capability, which enables simultaneous transmission
and reception of data on the Ethernet local area network (LAN).
USB ports and devices will be disabled during the power-on self-test (POST).
emulates a mouse, and you will not be able to disable the mouse settings in the
Configuration/Setup Utility program.
Configuration/Setup Utility program (see "Starting the Configuration/Setup
Utility program" on page 11) to Enable keyboardless operation and prevent
the POST error message 301 from being displayed during startup.
1
4
Table 14. USB-port connector pin-number assignments
Pin
Signal
1
VCC
2
-Data
3
+Data
4
Ground
Chapter 4. Customer replaceable units
113
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