User`s manual

QSP-200/300 parent device. Right click on the chosen child device and
choose "Properties".
6. The base I/O address and IRQ level displayed here is the base I/O address
and IRQ level of the entire parent device. The resources cannot be modified
here. For information on how to change these settings, got to the section
labeled "Changing Configuration of the QSP-200/300".
7. Use the Logical Com Port name to access any of the particular serial ports
on the QSP-200/300. This name is required by a Windows 2000 application
when accessing a particular port.
QSP-200/300 User's Manual 10