Windows Nt - Quatech QSC-200 User Manual

1. Double click the "System" icon inside the Control Panel folder. This opens up the
System Properties box.
2. Click the "Device Manager" tab located along the top of the System Properties box. This
lists all hardware devices registered inside the Windows 95 registry. Additional
information is available on any of these devices by click on the device name and then
selecting the "Properties" button.
3. Double click the device group "Multi-function Adapters". The QSC-200/300 model
name should appear in the list of Multi-function adapters.
4. Double click the QSC-200/300 model name and a properties box should open for the
hardware adapter.
5. Click the "Resources" tab located along the top of the properties box to view the
resources Windows has allocated for the QSC-200/300 match the hardware configuration.
Because PCI is a true plug-and-play bus, do not attempt to modify the
configuration values listed. Click "Cancel" to exit without making changes.
6. The QSC-200/300 serial ports are also listed under the group Ports (COM and LPT).
Windows 95 does not assign COM1-COM4 to ports addressed at nonstandard locations.
The QSC-200/300 ports will be enumerated starting with COM5 (or higher) even if lower
logical numbers are available.
7. Select any of the Quatech Serial Ports listed under the group Port (COM and LPT) and
click the "Properties" button. This action opens a properties dialog for the specific COM
port on the QSC-200/300.
8. Click the "Port Settings" tab and then click the "Advanced" button. The QSC-200/300
driver will display a custom Advanced Port Settings control, which allows the ports
UART compatibility mode and FIFO threshold levels to be configured. The threshold
values of full-scale for the transmit buffer and 3/4-scale for the receive buffer shown
below are optimal for most applications. Note that the FIFO option for each of the
QSC-200/300's four ports is configured independently.
9. Use the Logical COM Port names to access the serial ports on your QSC-200/300 through
your software applications. Note: The Logical COM Port name is assigned to your ports
by Windows 95. This name is required by a Windows application when accessing a
particular port.
Device drivers for Windows NT, OS/2, 98, Millennium, and 2000 are also available for
the QSC-200/300. The board can be used under DOS and other operating systems as well in
many circumstances. The software described below can be obtained from the Quatech web site if
it did not come with the board.

5.6 Windows NT

Quatech QSC-200/300 Users Manual 23