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52 Chapter 3 Using Your iMac
Using FireWire Devices
To use a FireWire device with your iMac, simply connect the device to the FireWire (H)
port. Apple has already included software to work with many FireWire devices. When
you connect a FireWire device, if your iMac cannot find the correct software, you can
install the software that came with the device or check the device manufacturer’s
website for the latest software.
Note: The FireWire (H) port is designed to provide power for FireWire devices (up to a
total of 8 watts). You can connect multiple devices to each other and connect the “daisy
chain” of devices to the FireWire (H) port on your iMac. In most cases, at most two
devices should get power from the iMac. If you connect more than two devices, the
rest of the devices in the daisy chain should be powered by separate power adapters.
Connecting more than two FireWire devices that get power from the iMac may cause
problems. If a problem occurs, shut down your iMac, disconnect the FireWire devices,
and restart your iMac.
More Information About FireWire
More information about FireWire is available in Mac Help. Choose Help > Mac Help and
search for “FireWire.”