User`s manual

Page 25 of 26
V. Application Notes
1. IMPORTANT: Please select “Safely Remove Hardware” or “Eject” for
USB devices connected to any of the 3 downstream USB ports on the 2-port
USB KVM Switch before switching between the hosts. Switching hosts is
equivalent of removing the USB devices, which may damage your USB
devices or data if not removed properly by the OS.
2. The 2-port USB KVM Switch normally derives its own power from host
computer. When the 2-port USB KVM Switch and the USB port of computer
are connected, the LED will turn red, and the keyboard and mouse can
operate.
3. Unknown Device:
If the installation process has been completed and some of the devices still
don't work, please go to: Device Manager, check to see if any “Unknown
device” icons appear on the screen. You may need to “Remove” and “Refresh”,
then start the installation process again. If after trying the above mentioned
process and your device still does not work, please contact your retail dealer.
**Note: If you are connected to a heavy-duty HDD / CD-ROM, ‘unknown
device’ might occur. Please plug in the appropriate adaptor for power
sufficiency.