Agilent Technologies USB/GPIB Interface Converter 82357A - Manual (Page 15)

Chapter 1 15
Installing the 82357A
Step 3: Connecting the 82357A
2
Observe the LEDs. Observe the LEDs on the 82357A for at least 10
seconds. See Chapter 2 - Using the 82357A for a description of the
normal LED sequence with an initial installation of an 82357A.
a Initially, only the red FAIL LED should be ON. After a few seconds,
all three LEDs should be ON. All three LEDs ON shows the
82357A has been successfully installed, but is not yet configured
for use with the Agilent IO Libraries Suite.
b If all three LEDs are not ON after 10 seconds and all Windows Plug
and Play Manager activity has ceased, STOP . See Chapter 3 -
Troubleshooting the 82357A for diagnostics information.
c If all three LEDs are still ON after 10 seconds, go to “Observing
Windows Plug and Play Manager Sequence (Windows XP Only)”.
Connecting the 82357A to a USB Hub
This section shows steps to connect the 82357A to a USB port on your PC
via a standard USB hub.
1 Plug the power adapter into the hub and into an electrical outlet.
Make sure the hub is operating in self-powered mode. For example,
the following figure shows a 4-port self-powered USB hub with two
82357A USB/GPIB Interface Converters connected.
2 Make sure your PC is ON. Connect the USB cable of the USB hub
to any available USB port on your PC.
3 Plug at least one 82357A USB/GPIB Interface Converter into the
port(s) on the USB hub. It is not necessary to connect GPIB
instruments to any 82357A at this time.
NOTE
Any USB hub used with the 82357A MUST be self-powered (must not
be bus-powered or powered from the USB bus). Also, be sure to check
the applicable USB hub documentation for hub operating parameters,
such as power requirements and maximum length of USB cables.