Keyspan USB Serial Adapter version 2.0 User Manual page 30

Keyspan USB Serial Adapter Software v2.x for Mac OS X User Manual
Next, select COM1 or COM2 depending on which port you wish to emulate. Please note which
port you select as you will be selecting this port in your serial device's software later.
Now that you've selected COM1 or COM2, you will need to map the VirtualPC COM port to
a Keyspan MAC serial port. This is what causes data to be sent to COM1 or COM2 to be sent
to to your Keyspan serial port. To do this, turn on the Mac serial port radio button and select
your Keyspan serial port from the list of available ports (this is same port from Step 1).
Rev 2006aug07 Page 30