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Appendix B: Windows NT Configuration
NOTE BEFORE INSTALLING: In NT, you must have a Plug and Play (PNP) BIOS for the adapter to be recognized and configured. These instructions assume this requirement has been met and that no optional PNP utilities are being used by Windows NT.
Technical Notes
These instructions are for either PNP I/O card. The Turbo 2x2 is the same as the 1x1 unless you attach the second serial or parallel port. Your BIOS should not recognize any ports unless they are physically attached to the card. The J12 jumper must be set before installing card. This jumper has three settings.
1.Software selectable. This requires that the ports UART be determined by a
2.Normal operation. This sets the serial ports statically, to 550 UART.
3.High speed operation. This sets the serial ports statically, to 650 UART.
You can not use the first option in NT. So, if using the 2x2, both serial ports will be the same UART. Many devices will not function properly on a high speed port, such as a mouse, and/or require additional drivers. Make sure that any devices attached to these ports are supported by the jumper selected mode.
Windows NT Notes
Before installing, check what ports are already installed in NT. Go to Start> Settings> Control Panel> Ports.
Any COM ports will be listed here with the exception of devices that are initialized at boot.
Windows NT Configuration
