port on your computer. If this solves the problem, then this may be an issue with your USB hub. If
you are encountering this problem or something similar to it, please contact
for further instructions.
Keyspan:USB Twin Serial Adapter for Mac OS-v1.9 User Manual
This User Manual applies to the Keyspan USB Twin Serial Adapter Software for Mac OS.
(rev 02may12JA)
Page 22