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LaCie Mobile Disk
User Manual
page 18
Interface and Data Transfer Information
A data transfer is the flow of data that accomplishes
a task, usually related to moving data from storage to
computer RAM or between storage devices. During
data transfers, it’s best to wait before launching other
applications on the same USB 2.0 port. Anomalies may
arise with computers that have USB 2.0 controllers that
do not conform to OHCI (Open Host Controller In-
terface) standards. In any other configurations, we can-
not ensure 100% correct operation.
If you experience hanging problems, proceed as fol-
lows:
Make sure that the USB 2.0 cable is connected tight-
ly and securely on both ends of the cable, from the
drive to the computer. If you are using a USB 2.0
cable other than the one supplied with your LaCie
drive, check that it is certified. e cables provided
with your LaCie drive are USB 2.0 certified.
Check that the power supply and ground connection
are seated properly.
Disconnect your computer’s USB 2.0 cable. Wait 30
seconds. Reconnect.
1.
2.
3.
CAUTION: Do not connect USB cables so that
they form a ring of devices. ere is no need for
terminators on USB or devices, so the unused USB
connectors should be left empty.
TeChNICAl NOTe: Controller - A control-
ler is a component or an electronic card (referred
to in this case as a “controller card”) that enables a
computer to communicate with or manage certain
peripherals. An external controller is an expansion
card which fills one of the free slots (i.e. PCI or
PCMCIA) inside your PC and which enables a pe-
ripheral (ex. CD-R/RW drive, scanner or printer)
to be connected to the computer. If your computer
is not equipped with a USB controller card, you
can purchase an external controller through LaCie.
Contact your LaCie reseller or LaCie Technical
Support (section 6, Contacting Customer Support)
for more information.
4.2. Data Transfers