### Requirements and Considerations

Read this section before beginning the RealPort driver installation.

- The SCO OpenServer RealPort driver is compatible with SCO OpenServer System V Release 3.2 and SCO OpenServer. The SCO OpenServer RealPort driver is not compatible with SCO UnixWare. SCO UnixWare is supported by the SVR4 driver.
- Installing the RealPort software on a SCO OpenServer host where RealPort has already been installed will overwrite the existing RealPort configuration on that host. If a PortServer is added to an existing RealPort configuration, the software must be reinstalled and all the Digi devices configured again. It is best to configure extra Digi devices during the initial RealPort configuration. By doing this, additional Digi devices can be connected later without reinstalling the driver.
- The Digi RealPort driver for SCO OpenServer is an installable device driver. The software development system is not required to create a new kernel.