User guide

Chapter 2: Pro Tools|HD Native Hardware Overview 9
Digital I/O
• Up to sixteen channels of 24-bit digital I/O,
using AES/EBU, TDIF DB-25, or Optical at
sample rates of 44.1 kHz, 48 kHz, 88.2 kHz,
96 kHz, 176.4 kHz, and 192 kHz with a Digital
HD I/O card
• Real-time sample rate conversion on digital
inputs with a Digital I/O card (up to sixteen
channels of AES/EBU, Optical, or TDIF)
• Support for S/MUX Optical for sample rates of
88.2 kHz and higher
• Support for 2 channels of S/PDIF Optical (en-
closed) with sample rates of up to 96 kHz
• 2 channels of AES/EBU I/O (enclosed) with
support for sample rates up to 192 kHz
• 2 channels of 24-bit-capable S/PDIF I/O (en-
closed) with support for sample rates up to
192 kHz
Synchronization
• Loop Sync input and output for connecting
additional Pro Tools|HD interfaces and pe-
ripherals
• External Clock input and output for synchro-
nizing HD I/O with external Word Clock de-
vices
Expandability
• Optional addition of I/O cards to expand ana-
log or digital I/O
• Simultaneous use of multiple Pro Tools|HD
audio interfaces to further expand system in-
put and output (for more information see the
Expanded Systems Guide)
HD MADI
HD MADI is a 64-channel, digital audio inter-
face designed for use with Pro Tools|HD and
Pro Tools|HD Native systems. HD MADI sup-
ports the Multichannel Audio Digital Interface
(MADI) format and sample rates of up to
192 kHz. HD MADI provides simplified connec-
tivity between your Pro Tools|HD or
Pro Tools|HD Native system and MADI-compat-
ible audio equipment, such as routers, digital
mixing consoles, and converters.
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 out-
put (32 channels per DigiLink Mini port)
• Supports sample rates of 44.1 kHz, 48 kHz,
88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
• 24- or 16-bit resolution
• Sample Rate Conversion (SRC) on input or
output
• 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 Pro Tools|HD audio in-
terfaces and peripherals (such as HD I/O, HD
OMNI, or SYNC HD)
For more information about HD I/O, see the
HD I/O Guide.
To use the full channel capacity of HD
MADI, only a single HD MADI can be con-
nected to a Pro Tools|HD Native card using
two DigiLink Mini cables. No additional
I/O may be used with this configuration.