Gefen USB 400 FO EXT-USB-400FON - Manual (Page 12)

9
TROUBLESHOOTING
Verifying Installation on PC or Macintosh Computers
1. For Windows users (2000, XP, Vista, Windows 7), open the Device Manager
to confi rm that the USB 400 FO has installed correctly. Expand the entry for
Universal Serial Bus controllers by clicking the + sign. If the USB 400 FO has
been installed correctly, you should fi nd it listed as a “Generic USB Hub”.
2. For Mac OS X users, open the System Profi ler to confi rm that the
USB 400 FO has installed correctly. In the left hand column under Hardware,
select “USB” and inspect the right hand panel. If the USB 400 FO has been
installed correctly, you should fi nd it listed as a “Hub” under the USB high-Speed
Bus/USB Bus.
The following table provides additional troubleshooting tips. The topics are
arranged in the order in which they should be executed in most situations. If
you are unable to resolve the problem after following these instructions, please
contact technical support for further assistance.
PROBLEM CAUSE SOLUTION
All LEDs on
Sender unit are
off. The Sender unit is not
receiving power from the
USB port or the optional)
Sender 5VDC power supply. 1. Ensure that the USB
connection between the
Sender and host computer is
properly installed.
2. Move the USB connector to
another USB port on the host
computer.
All LEDs on
Receiver unit
are off. The Receiver unit is not
receiving power from the
5VDC power supply. 1. Ensure that the 5VDC
power supply is properly
connected to the Receiver
unit.
2. Check that the 5VDC
power supply is connected
to a live source of electrical
power. Check that the
Receiver power LED is
illuminated.