LaCie Biggest Quadra | USB Questions & Answers |
User Manual | page 51 |
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If you buy a hub, make sure that it supports per-port switching. This function prevents the entire chain of pe- ripherals from freezing up if one of them is not working properly or is down.
Will Hi-Speed USB 2.0 Devices Work On USB Hubs And Vice Versa?
You can use your Hi-Speed USB 2.0 devices with USB hubs, but the peripherals will be limited to USB performance levels.
There are Hi-Speed USB 2.0 hubs that are able to communicate in three modes: high-speed (480Mb/s), full-speed (12Mb/s), and low-speed (1.5Mb/s). Hi- Speed USB 2.0 is backwards compatible, so you will
be able to connect USB devices to Hi-Speed USB 2.0 hubs; however, the USB devices will still maintain their normal performance levels (i.e. 12 Mb/s).
In order to achieve the fast data transfer rates of Hi- Speed USB 2.0, you must connect your Hi-Speed USB
2.0device directly to a Hi-Speed USB 2.0 port on ei- ther a computer or hub.
For more information about the USB interface, please visit: www.lacie.com/technologies
Technical note: Avoid using USB connec- tors found on certain peripherals such as keyboards. These are passive (or pass-through) connectors that lead to power loss and unstable operation.
Only use USB cables shorter than 5 meters (ap- proximately 15 feet). Using longer cables may cause the peripherals to malfunction due to excessive re- duction in electrical signal strength.
