Technical data

84 Agilent Connectivity Guide
4 Connecting Instruments to USB
USB Software Checks
This section provides guidelines to make software troubleshooting
checks for connected USB instruments. If you have not already done so,
we suggest you start your troubleshooting sequence by performing the
hardware checks in USB Hardware Checks. If performing the hardware
and then the software checks does not correct the problem, contact
Agilent for instructions. See Contacting Agilent for addresses.
Verify USB Driver Installation
1 Check for USB Driver Files. Files are listed in their default Windows
directories. Verify that the driver files are installed. If they are
installed, go to Check Agilent IO Control Operation. If not, go to
step 2.
2
Uninstall/Reinstall the Agilent IO Libraries Suite. If the driver files are
not found, uninstall the Agilent IO Libraries Suite by inserting the
Automation-Ready CD with Agilent IO Libraries Suite and following
the instructions to install the libraries. The installation program will
detect the existence of the IO Libraries Suite and offer you the option
to remove it. Then reinstall the IO Libraries Suite.
Windows 2000
Program Files
C:/Program Files/Agilent/IO Libraries
Suite/drivers/agusb48832.dll
Driver Files
C:/Winnt/system32/drivers/ausbtmc.sys
.inf Files
C:/Winnt/inf/ausbtmc.inf
Windows XP / Vista
Program Files
C:/Program Files/Agilent/IO Libraries
Suite/drivers/agusb48831.dll
Driver Files
C:/Windows/system32/drivers/ausbtmc.sys
.inf Files
C:/Windows/inf/ausbtmc.inf