IBM 220 manual Universal Serial Bus ports, Viewing or changing the serial-port assignments

Configuration/Setup Utility program to change serial port address assignments to prevent or resolve address conflicts.

Viewing or changing the serial-port assignments

To view or change the serial-port assignments, do the following:

1.Restart the server and watch the monitor screen.

2.When the message Press F1 for Configuration/Setup appears, press F1.

3.From the main menu, select Devices and I/O Ports; then, press Enter.

4.Select the serial port; then, use the arrow keys to advance through the available settings.

5.Select Save Settings; then, select Exit Setup to exit from the Configuration/Setup Utility main menu.

Serial-port connectors

The following table shows the pin-number assignments for the 9-pin, male D-shell serial-port connectors on the rear of the server. These pin-number assignments conform to the industry standard.

	1	5
	6	9
Pin	Signal	Pin	Signal
1	Data carrier detect	6	Data set ready
2	Receive data	7	Request to send
3	Transmit data	8	Clear to send
4	Data terminal ready	9	Ring indicator
5	Signal ground

Table 5. Serial-port connectors pin-number assignments

Universal Serial Bus ports

Your server has two Universal Serial Bus (USB) ports, which configure 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 USB ports and devices will be disabled during the power-on self-test (POST).

2.If you install a USB keyboard that has a mouse port, the USB keyboard emulates a mouse, and you will not be able to disable the mouse settings in the Configuration/Setup Utility program.

USB cables and hubs

You need a 4-pin cable to connect devices to USB 1 or USB 2. If you plan to attach more than two USB devices, you must use a hub to connect the devices. The hub provides multiple connectors for attaching additional external USB devices.

64 IBM® xSeries 220 User’s Reference