B&B Electronics 00-00327 - Manual User Manual
Page 15

PROBLEM
CAUSE
SOLUTION
Host	LED	on	LEX/
REX	units	are	off.
•		The	host	computer	is	not	
 powered on.
•		The	LEX	unit	is	not	
 connected to the computer 
 (when used with the optional 
			LEX	AC	adapter).
•		The	Spectra	3022	is 
 malfunctioning.
1. Disconnect all USB devices from the REX unit.
2. Disconnect the LEX unit from the computer.
3. Disconnect the REX unit from the AC power
adapter.
4. Reconnect the LEX unit to the computer.
5. Reconnect the REX unit to the AC power
adapter.
6. In the Universal Serial Bus controllers section of 
 Device Manager, check that the Spectra 3022 is 
 recognized as two “Superspeed Hub”s or two 3.0
 Hub”s
note
It may be recognized as “Superspeed Hub”,
 “3.0 Hub” or by other names, depending on 
 the operating system and driver installed.
All	LEDs	on	both	
the	LEX	unit	and	
REX	unit	are	on	
but the USB device 
does not operate 
correctly, or is 
detected as an 
“Unknown Device” 
in the operating 
system.
•		The	USB	device	is	
 malfunctioning.
•		The	computer	does	not	
 recognize the USB device.
•		The	application	software	for	
 the device is not operating.
•		The	Spectra	3022	is
 malfunctioning.
1. Disconnect the Spectra 3022 from the
 computer.
2. Connect the USB device directly to the USB port 
 on the computer.
3. If the USB device does not operate properly, 
 consult the user documentation for the device.
4. Update your system BIOS, chipset, or USB Host 
					controller	drivers	from	your	System/Mother
 board manufacturer’s website.
5. If the USB device operates properly when
 directly connected to the computer, connect
 another device (of a different type) to the 
 Spectra 3022. Connect the Spectra 3022 to the
 computer.
6. If the second USB device does not operate, the 
 Spectra 3022 may be malfunctioning. 
 Contact 
or assistance.
7. If the second USB device does operate properly, 
 the first device may not be compatible with
 the Spectra 3022. 
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