Specifications

Pro Tools|HD Getting Started Guide6
Audio Interfaces
To record and play audio you must have at least
one of the following Digidesign audio inter-
faces:
192 I/O Audio Interface
• Supports sample rates up to 192 kHz. (At least
one 192 I/O™ or 192 Digital I/O must be con-
nected to your Pro Tools|HD system for
192 kHz recording, processing, and playback.)
• Supports both analog and digital connections,
including AES/EBU, S/PDIF, TDIF, and ADAT
Optical:
• Digital (Digital I/O Card): 8 channels, DB-
25 (AES/EBU and TDIF), or one pair of
Lightpipe (ADAT Optical) connectors. Ex-
pandable up to 16 channels digital I/O with
the addition of the 192 Digital expansion
card.
• Analog: 8 channels, DB-25 (balanced) con-
nectors, inputs selectable between +4 dBu
or –10 dBV, outputs +4 dBu only. Expand-
able up to 16 analog inputs or 16 outputs
using an optional 192 AD or 192 DA ex-
pansion card, respectively.
• Digital (Enclosure): 2 channels, XLR
(AES/EBU) connectors; 2 channels RCA
(S/PDIF) connectors.
• Optical (Enclosure): 8 channels, one pair of
Lightpipe (ADAT Optical) connectors (swit-
chable to 2 channels, S/PDIF).
• Loop Sync In and Out for connecting
Pro Tools|HD interfaces and peripherals
• External Clock In and Out receive or send 1x
Word clock (configurable to 256x for Legacy
support, see “Optional Legacy I/O Audio In-
terfaces” on page 7).
192 Digital I/O Audio Interface
• Supports sample rates up to 192 kHz. (At least
one 192 I/O or 192 Digital I/O must be con-
nected to your Pro Tools|HD system for
192 kHz recording, processing, and playback.)
• Supports digital connections, including
AES/EBU, S/PDIF, TDIF, and ADAT Optical:
• Digital (2 Digital I/O Cards): 16 channels,
DB-25 (AES/EBU and TDIF), or two pairs of
Lightpipe (ADAT Optical) connectors.
• Digital (Enclosure): 2 channels, XLR
(AES/EBU) connectors; 2 channels RCA
(S/PDIF) connectors.
• Optical (Enclosure): 8 channels, one pair of
Lightpipe (ADAT Optical) connectors (se-
lectable to 2 channels, S/PDIF).
• Loop Sync In and Out for connecting
Pro Tools|HD interfaces and peripherals
• External Clock In and Out receive or send 1x
Word clock (configurable to 256x for Legacy
support, see “Optional Legacy I/O Audio In-
terfaces” on page 7).