LaCie d2 Hard Drive User Manual

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LaCie d2 Hard Drive User Manual Manual pdf 34 page image

3. Installing Your LaCie Drivepage 34LaCie d2 Hard DriveUser’s Manual3.4. Installing Multiple DevicesBoth the FireWire and USB interfaces allow for multiple devices to be connected.3.4.1. FireWireFireWire 400 and FireWire 800 allow for the connection of up to 63 devices on the bus, with a maximum of 16 devices onone branch. FireWire 400 and FireWire 800 devices can be connected on a chain and do not necessarily need a hub.Simply connect the first peripheral to a FireWire 400 or FireWire 800 port on your computer. Connect the second peripheralto the other FireWire 400 or FireWire 800 port on the first drive etc., using the cables provided with your drives.FireWire 800 devices can be chained together with the original FireWire 400 standard (provided the correct cables areused), but transfer rates will be limited to the original FireWire 400 speeds.Tech Note: To daisy-chain devices, you must be using the same interface, either FireWire or USB. Your computerwill not recognize the daisy-chained device if the interfaces are mixed, i.e. a FireWire device attached to a drivethat is connected to the computer via the Hi-Speed USB 2.0 interface.Daisy-chain configurations:• FireWire 400 device connected directly to the LaCie d2 Hard Drive, which is connected to the computer viathe FireWire 800 port.• iLink/DV device connected directly to the LaCie d2 Hard Drive, which is connected to the computer via theFireWire 800 port.• FireWire 800 device connected directly to the LaCie d2 Hard Drive, which is connected to the computer viathe FireWire 800 port.Tech Note: For more information about FireWire and improving performance, please sections5.3. Optimizing Data Transfers and 6. FireWire Questions & Answers.3.4.2. USBTechnically, you can connect up to 127 individual USB peripherals at one time. However, you probably will not use more than6 to 8 peripherals on your USB system. Most computers only have two USB ports, so you would need a hub to connect morethan two peripheral drives. The hub regenerates the signals, generally providing between 4 to 7 connections. To add evenmore drives, connect a new hub to a connector of the original hub, creating a new series of peripherals, etc. But the hubslows down the transfer rate by lengthening the path of the signal. To optimize performance, connect your drive directly toone of the built-in ports in your computer.Tech Note: For more information about USB and improving performance, please sections5.3. Optimizing Data Transfers and 7. USB Questions & Answers.