User Manual-for Windows

INSTALLING THE AUDIO EXPRESS HARDWARE
19
For the most reliable connection, it is
recommended that you connect the Audio Express
directly to one of your computer’s USB 2.0-
compatible ports. However, since USB 2.0 hubs are
compatible with both types of devices, the Audio
Express can be connected to a USB 2.0 hub along
with USB 1.1 devices if necessary. The Audio
Express will not operate properly if it is connected
to a USB 1.1 hub.
Follow these instructions to determine whether
your computer supports USB 1.1 or USB 2.0:
1 Open the Windows Control Panel, and choose
Hardware and Sound.
2 In the Devices and Printers section, click Device
Manager.
3 In Device Manager, open the Universal Serial
Bus Controllers section.
4 Look in the list of USB devices. An Enhanced
USB Host Controller Interface (EHCI) represents a
USB 2.0 controller. An Open USB Host Controller
Interface (OHCI) or Universal USB Host
Controller Interface (UHCI) represents a USB 1.1
controller.
If you are connecting via high-speed USB 2.0
1 Before you begin, make sure your computer and
the Audio Express are switched off.
2 Plug the flat “type A” plug of the Audio Express
USB cable (included) into a USB2-equipped socket
on the computer as shown below in Figure 4-1.
3 Plug the squared “type B” plug of the USB cable
into the Audio Express I/O as shown below in
Figure 4-1.
Figure 4-2: Connecting the Audio Express to the computer via USB.
Switching Between FireWire and USB
Most of the time, the Audio Express can detect
whether a FireWire or a USB cable is connected to
it, and it will automatically switch to FireWire
operation or USB operation accordingly. Some
FireWire or USB ports that do not provide bus
power can not be automatically detected by the
Audio Express, and you may need to switch the
device to FireWire mode or USB mode manually:
When the Audio Express switches to FireWire
operation, it displays
F on the front panel LEDs.
When it switches to USB operation, it displays
U on
the front panel LEDs.
To switch to Press and hold this knob while turning on the Audio
Express
FireWire LINE 3 knob
USB LINE 4 knob