Specifications

Pro Tools Reference Guide54
HD MADI Digital Audio Interface
HD MADI is a 64-channel, digital audio interface
designed for use with Avid HD systems.
HD MADI supports the Multichannel Audio Digi-
tal Interface (MADI) format and sample rates of up
to 192 kHz. HD MADI provides simplified con-
nectivity between your Avid HD system and
MADI-compatible audio equipment.
HD MADI Features
• 2 MADI Optical and Coaxial inputs and 2
MADI Optical and Coaxial outputs for up to 64
discrete channels of digital input and output (32
channels per DigiLink Mini port)
• Supports sample rates of 44.1, 48, 88.2, 96,
176.4, and 192 kHz
• 24- or 16-bit resolution
• Sample Rate Conversion (SRC) on input or out-
put
• Front panel clock and SRC indicators
• Front panel signal present LEDs for input and
output
• BNC Word Clock I/O for synchronizing HD
MADI with external 1x Word Clock
• BNC Loop Sync I/O for synchronizing
HD MADI with additional Avid HD audio
interfaces and peripherals (such as HD I/O,
HD OMNI, or SYNC HD)
• Dedicated BNC Word Clock input and XLR
AES/EBU input (clock input only) for external
MADI synchronization (when using SRC on
output)
• Clock support for the following formats: Inter-
nal, Loop Sync, Word Clock, AES/EBU, and
MADI
• Varispeed modes (supports both 64- and 56-
channel standards)
192 I/O Audio Interface
192 I/O is a multichannel digital audio interface
designed for use with Avid HD systems. 192 I/O
features high quality 24-bit analog-to-digital (A/D)
and digital-to-analog (D/A) converters, and sup-
ports sample rates of up to 192 kHz.
You can also add or remove analog cards (ADC
and DAC) and digital cards for custom configura-
tions.
192 I/O Features
• Supports sample rates up to 192 kHz
• 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 Light-
pipe (ADAT Optical) connectors; Expand-
able up to 16 of 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; Expandable
up to 16 analog inputs or 16 outputs using an
optional 192 AD or 192 DA expansion 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
(switchable to 2 channels, S/PDIF)
• Loop Sync In and Out for connecting Avid HD
interfaces and peripherals
• External Clock In and Out receive or send 1x
Word clock
For more information, see the HD MADI Guide.
For more information, see the 192 I/O Guide.