Connecting The 82357B To A Usb Hub - Agilent Technologies 82357B User Manual

Connecting the 82357B to a USB Hub

N O T E
82357B USB/GPIB Interface User's Guide
2 Observe the LEDs. Observe the LEDs on the 82357B for at least 10
seconds. See Chapter
description of the normal LED sequence during an initial
installation of the 82357B.
a Initially, only the red FAIL LED should be ON. After a few
seconds, all three LEDs should be ON. When all three LEDs are
ON, this shows that the 82357B 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 Agilent 82357B" for diagnostics
information.
c If all three LEDs are still ON after 10 seconds, go to
Windows Plug- and- Play Manager Sequence (Windows XP
Only)".
This section shows steps to connect the 82357B to a USB port on your
PC via a standard USB hub.
Any USB hub used with the 82357B 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.
1 Plug the power adapter into the hub and into an electrical outlet.
Make sure the hub is operating in self- powered mode. Figure 1- 6
shows a 4- port self- powered USB hub with two 82357B USB/GPIB
Interfaces 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 82357B USB/GPIB Interface into the port of the
USB hub. It is not necessary to connect GPIB instruments to any
82357B at this time.
Installing the Agilent 82357B
2, "Using the Agilent 82357B" for a
1
"Observing
15