Instruction Manual

UAD System Manual - 113 - Chapter 11: UAD-2 Satellite
This example uses the Apogee Duet, a popular audio interface with one
FireWire port that can only be bus powered. If the Duet was connected di-
rectly to UAD-2 Satellite, it would not have power to operate because UAD-2
Satellite does not supply bus power. Therefore, the Duet must be connected to
the externally powered FireWire repeater or hub that provides bus powering.
In this example, UAD-2 Satellite operates at FireWire 800 speeds because it
is connected directly to a FireWire 800 computer. If external HD #1 is a
FireWire 800 device and it is connected a FireWire 800 port on UAD-2 Sat-
ellite, it will also operate at FireWire 800 speeds. Because the FireWire re-
peater is a FireWire 400 device, all devices connected to it operate at
FireWire 400 speeds. See “Mixing FireWire Speeds” on page 108 for more
about connecting devices of various speeds on the same FireWire bus.
Caveats The quality and compatibility of powered FireWire repeaters and hubs can
vary widely. Just because a FireWire repeater or hub is externally powered
doesn’t necessarily mean it provides bus power or that it is compatible with
UAD-2 Satellite and other FireWire devices. For the latest compatibility infor-
mation and specific repeater and hub recommendations, please visit the
UAD-2 Satellite support page:
• www.uaudio.com/support/uad/satellite-support
Figure 38. Proper connection of bus powered FireWire devices
External HD 2
FW800 Computer
UAD-2 Satellite
The externally powered FireWire repeater must supply bus power!
Powered
FW400 repeater
Apogee Duet
(bus powered)
(bus powered)
External HD 1
(externally powered)
(externally powered)