Black Box PC472C, PC473C manual Appendix B. Non-Interrupt Mode, PC470C, PC471C, and PC478C

APPENDIX B: Non-Interrupt Mode

Appendix B. Non-Interrupt Mode

The Adapter normally uses one of the PC’s Interrupt Request Lines (IRQ) for optimum performance. However, the Adapter may be configured to operate without using an IRQ. This non-interrupt mode is valuable for PCs that have no free IRQs.

Depending on your Adapter Card and PC operating system, you will have different options for configuring the interrupt mode. For more detailed information, see the online help.

PC470C, PC471C, AND PC478C

In the Windows 95/98 environment, select the IRQ Mode tab on the Properties screen on the 5250 adapter in Device Manager and select “No Interrupt Mode.”

For Windows 3.x and Windows NT systems, run the Set IRQ Mode program in the 5250 Card program group/folder.

PC473C

In the Windows 95/98 environment, select the Resources tab on the Properties screen on the Adapter in Device Manager and select “Basic Configuration 2” in the Settings Based On list.

In the Windows 3.x environment, run the PnP Configuration Manager and change the IRQ definition to “None” for the adapter.

PC472C

Non-interrupt mode is not available for this Adapter Card.

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