USB to RS-422 & RS-485 Adapter
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Windows 98SE Installation Guide
If a device of the same type has been installed on your machine before and the drivers that are about to be
installed are different from those installed already, the original drivers need to be uninstalled. Please refer to
the uninstalling instruction.
Download the latest available drivers from the FTDI website and unzip them to a location on your
PC.
Connect the device to a spare USB port on your PC. This will launch the Windows Add New
Hardware Wizard. Windows may display a message reading "Building driver database" at this point
which may take a few minutes to pass. Click "Next" to proceed with the installation.
Select "Search for the best driver for your device. (Recommended)." as shown below and then click "Next".