Specifications

Chapter 1: Introduction to the 192 I/O 1
chapter 1
Introduction to the 192 I/O
The Digidesign 192 I/O is a 16-channel digital
audio interface for use in a Pro Tools|HD system.
Featuring 24-bit analog-to-digital (A/D) and dig-
ital-to-analog (D/A) converters, the 192 I/O sup-
ports sampling rates of up to 192 kHz for supe-
rior dynamic range and low noise floor.
192 I/O Features
• 16 discrete channels of input and output,
with 4-segment LED Meters to monitor input
and output on each channel. Input and Out-
put channels can include:
• Eight channels of 24-bit D/A and A/D con-
verters for superior analog input and out-
put at sampling rates of 44.1 kHz, 48 kHz,
88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
• Ten channels of 24-bit-supported AES/EBU
I/O, eight channels of which support sam-
pling rates of up to 192 kHz
• Sixteen channels of Optical I/O, through
two pairs of Lightpipe (ADAT) connectors;
one pair of optical ports can be switched to
two channels of optical S/PDIF I/O
• Two 24-bit-capable S/PDIF I/O supporting
sample rates of up to 96 kHz
• Real-time sample rate conversion on inputs of
eight channels of either AES/EBU, Optical, or
TDIF.
• Word Clock input and output for synchroniz-
ing 192 I/O with external Word Clock or 256x
(Slave Clock) devices.
• Simultaneous use of up to eight 192 I/O units
is supported, for a maximum of 96 channels
of I/O at 96 kHz.
• Legacy Port for Digidesign MIX-series audio
interfaces.
• Optional addition of cards to expand analog
or digital I/O.
What’s Included
• 192 I/O with power cable
• This guide
• DigiLink cable (1.5ft. [0.46m])
• BNC cable (1.5ft. [0.46m])
System Requirements
The Digidesign 192 I/O requires:
• A Pro Tools|HD system on a qualified Macin-
tosh OS or Windows CPU
• Pro Tools software, version 5.3 or higher
• A monitoring system (mixer, amplifier, speak-
ers, or headphones)