U s e r ’s G u i d e : U S B X ch a n g e
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USBXchange Power Supply
The USBXchange receives its power from either the termination power
line of attached SCSI devices or, if not present, from the USB bus. In
some cases, especially when using unpowered USB hubs with attached
SCSI devices which do not supply SCSI termination power, the USB bus
cannot supply the needed power for the USBXchange to operate. In these
cases, you may need an external DC power supply.
Note:
Adaptec strongly recommends that you plug the USBXchange
directly into a USB port on your system. If you must connect
through a USB hub, use only a self-powered USB hub.
If your USBXchange is not supplied with enough power to operate, you
will receive this error message:
You can try either of the following to correct the problem:
♦
Unplug the USBXchange and plug it directly into another USB port
on your computer or into a self-powered hub that is connected to
your computer.
♦
Connect an external DC power supply to your USBXchange.
