HP OmniBook 5500 Notebook PC - Manual (Page 66)

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1. Press FN+F2 to start the System Configuration utility.
2. Use the Input/Output menu COM Ports command to change the COM names for
the serial port and the physical infrared port (normally COM1 and COM2).
PCMCIA serial-type cards use the remaining COM names.
3. Exit the utility without rebooting—then click Start and Shut Down to restart the
OmniBook. You must restart to make the new assignments active.
To specify serial port settings
Many applications provide a way for you to adjust the settings for serial ports they
use. Other applications don’t let you change serial port settings. However, you can
use Control Panel to set the basic serial port settings—the ones used by an
application that doesn’t change settings.
1. Open the System Properties window.
2. Click the Device Manager tab to see a list of serial (COM) ports.
3. To view the settings for a COM port, select the port and click Properties. (The
serial port is normally COM1, and the physical infrared port is normally COM2.)
To find out the port name for a particular serial connection, see the previous topic.
The changes you make to the advanced settings for a serial port should match your
hardware settings. The built-in advanced settings are listed below—you shouldn’t
use different settings in any applications.
• COM1: address 3F8 hex, interrupt 4.
• COM2: address 2F8 hex, interrupt 3.
• COM3: address 3E8 hex, interrupt 4.
•
COM4: address 2E8 hex, interrupt 3.
Making Parallel Connections
The OmniBook parallel port is a standard EPP 25-pin parallel port. It supports bi-
directional data transfer.
This section shows how to
• Connect a parallel device.
• View or change the serial port assignments.
To connect a parallel device
The OmniBook 25-pin parallel port is a standard parallel port. The most common
types of parallel connections involve connections to printers and to other computers.
• For a printer connection, use a standard parallel printer cable available at
computer dealers or electronic supply stores.
• For any other connection, such as a bi-directional connection, use a special
parallel cable designed for that purpose. See the manual for the software you’re
using.