Tripp Lite USA-49WG Macintosh Owner's Manual for USA-49WG 933034 - Page 24

6.1.d - VirtualPC Keyspan Support For VirtualPC... Information on how to use Keyspan serial products with VirtualPC is provided per the request of VirtualPC users. Keyspan does not support VirtualPC due to the fact that VirtualPC cannot provide the same USB and serial resources that you would find on a 'real' Windows computer. Because of this, serial devices running under VirtualPC (or any emulator) may or may not work. Serial and USB devices expect to communicate with hardware based serial and USB ports. Software based emulators, like VirtualPC, cannot provide the same level of performance as hardware based USB and serial ports. Depending on you serial device and its software, you may or may not be able to reliably use VirtualPC as a way of using a serial device. Please keep this in mind as you read these instructions. Before you begin... This Configuration Example shows you how to configure VirtualPC (with Microsoft Windows) to use a Keyspan serial port. There are two ways of doing this depending on your Keyspan serial product: Method 1 involves VirtualPC emulating COM1 or COM2 by using an existing Mac serial port. This method is compatible with all Keyspan serial ports. This method is recommended for use with DOS programs or any software that is not compatible with Microsoft's 'Win32 Communications API' (any pre-Windows 98 or 2000 programs). Method 2 involves VirtualPC emulating USB and installing Keyspan's Windows software. This method is only compatible with Keyspan serial ports that have Windows software. This method is recommended when you have: a) VirtualPC version 4.0 or later b) a Keyspan serial port that has Windows software. This method is not compatible with Mac only serial ports (USA-28, USA28X, USA-18X, SXPRO, etc.). IMPORTANT!!! YOU CANNOT USE BOTH METHOD 1 and METHOD 2 AT THE SAME TIME. Remember to disable USB is you have VPC set to use COM1/COM2 or disable COM1/ COM2 if you are using the USB. Both methods accomplish the same the same thing (adding a a serial port) but one method may work better than the other depending on what serial device is used, what operating system is installed, which Keyspan serial port is used, etc. or neither method may work. You may be able to find more information on the internet as to how to speed up VirtualPC as this often is a factor in getting a successful outcome. VirtualPC - Method 1 Page 24