Digidesign 2 用户手册
Chapter 4: Digi 002 Overview
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Pro Tools Hardware Setup dialog. When trans-
ferring material in one of these formats to
Pro Tools, be sure to select the appropriate Opti-
cal I/O format as the Clock Source in the Hard-
ware Setup dialog.
ferring material in one of these formats to
Pro Tools, be sure to select the appropriate Opti-
cal I/O format as the Clock Source in the Hard-
ware Setup dialog.
The Optical I/O ports support sample rates of
44.1 and 48 kHz in ADAT Optical mode, and
sample rates up to 96 kHz in Optical S/PDIF
mode. The Optical I/O ports support 24-bit,
20-bit and 16-bit resolutions in both modes.
44.1 and 48 kHz in ADAT Optical mode, and
sample rates up to 96 kHz in Optical S/PDIF
mode. The Optical I/O ports support 24-bit,
20-bit and 16-bit resolutions in both modes.
The Optical I/O ports use a standard optical
“lightpipe” cable.
“lightpipe” cable.
About Lightpipe-Compatible Devices
Lightpipe is an industry standard, eight-channel
optical digital audio connection developed by
Alesis. Lightpipe is found on many devices, in-
cluding Optical (ADAT) decks, modular digital
multitracks (MDMs), sound cards, stand-alone
A/D or D/A converters, and digital consoles.
optical digital audio connection developed by
Alesis. Lightpipe is found on many devices, in-
cluding Optical (ADAT) decks, modular digital
multitracks (MDMs), sound cards, stand-alone
A/D or D/A converters, and digital consoles.
MIDI Connectors
The MIDI connectors on the Digi 002 allow
Digi 002 to act as a MIDI interface.
Digi 002 to act as a MIDI interface.
With one MIDI input and two MIDI outputs,
Digi 002 provides 16 channels of MIDI input
and 32 channels of MIDI output.
Digi 002 provides 16 channels of MIDI input
and 32 channels of MIDI output.
A MIDI driver for each of these MIDI ports is in-
stalled when you install Pro Tools LE, and recog-
nized by Windows Multimedia, or when you up-
date MIDI Cards & Interfaces in OMS Setup
(Macintosh). These connectors accept standard
5-pin MIDI cables.
stalled when you install Pro Tools LE, and recog-
nized by Windows Multimedia, or when you up-
date MIDI Cards & Interfaces in OMS Setup
(Macintosh). These connectors accept standard
5-pin MIDI cables.
IEEE-1394 (FireWire) Ports
These two ports on the back of Digi 002, marked
“1394” in reference to their IEEE specification,
are commonly known as FireWire ports. These
provide connections to the computer and other
FireWire devices.
“1394” in reference to their IEEE specification,
are commonly known as FireWire ports. These
provide connections to the computer and other
FireWire devices.
FireWire offers a high rate of data transfer and
reliability that makes it ideal for audio applica-
tions. FireWire devices can be daisy-chained to-
gether without the need for terminators.
reliability that makes it ideal for audio applica-
tions. FireWire devices can be daisy-chained to-
gether without the need for terminators.
When the FireWire connection between the
computer and Digi 002 is established, the Link
LED, located between the FireWire ports, is lit.
computer and Digi 002 is established, the Link
LED, located between the FireWire ports, is lit.
Connecting Digi 002 and FireWire Hard Drives
The FireWire ports on Digi 002 do not pass au-
dio data when it is powered off, so if you
daisy-chain FireWire devices from your com-
puter, it is best to connect FireWire hard drives
directly to your computer and not to Digi 002.
This will prevent hard drive errors and data loss
in case the Digi 002 unit is powered off.
dio data when it is powered off, so if you
daisy-chain FireWire devices from your com-
puter, it is best to connect FireWire hard drives
directly to your computer and not to Digi 002.
This will prevent hard drive errors and data loss
in case the Digi 002 unit is powered off.
Connecting other FireWire Devices to Digi 002
The second FireWire port on the Digi 002 unit is
available for daisy-chaining FireWire devices
such as digital cameras or digital video record-
ers. Even when it is powered off, Digi 002 sup-
plies power from the computer through its
FireWire ports, allowing you to recharge batter-
ies in other FireWire devices.
available for daisy-chaining FireWire devices
such as digital cameras or digital video record-
ers. Even when it is powered off, Digi 002 sup-
plies power from the computer through its
FireWire ports, allowing you to recharge batter-
ies in other FireWire devices.