DigiDesign 192 I/O User Manual
192 I/O
™
Version 8.0
Legal Notices
This guide is copyrighted ©2008 by Digidesign, a division of
Avid Technology, Inc. (hereafter “Digidesign”), with all rights
reserved. Under copyright laws, this guide may not be
duplicated in whole or in part without the written consent of
Digidesign.
003, 96 I/O, 96i I/O, 192 Digital I/O, 192 I/O, 888|24 I/O,
882|20 I/O, 1622 I/O, 24-Bit ADAT Bridge I/O, AudioSuite,
Avid, Avid DNA, Avid Mojo, Avid Unity, Avid Unity ISIS,
Avid Xpress, AVoption, Axiom, Beat Detective, Bomb Factory,
Bruno, C|24, Command|8, Control|24, D-Command, D-Control,
D-Fi, D-fx, D-Show, D-Verb, DAE, Digi 002, DigiBase,
DigiDelivery, Digidesign, Digidesign Audio Engine, Digidesign
Intelligent Noise Reduction, Digidesign TDM Bus, DigiDrive,
DigiRack, DigiTest, DigiTranslator, DINR, D-Show, DV Toolkit,
EditPack, Eleven, HD Core, HD Process, Hybrid, Impact,
Interplay, LoFi, M-Audio, MachineControl, Maxim, Mbox,
MediaComposer, MIDI I/O, MIX, MultiShell, Nitris, OMF,
OMF Interchange, PRE, ProControl, Pro Tools M-Powered,
Pro Tools, Pro Tools|HD, Pro Tools LE, QuickPunch, Recti-Fi,
Reel Tape, Reso, Reverb One, ReVibe, RTAS, Sibelius,
Smack!, SoundReplacer, Sound Designer II, Strike, Structure,
SYNC HD, SYNC I/O, Synchronic, TL Aggro, TL AutoPan, TL
Drum Rehab, TL Everyphase, TL Fauxlder, TL In Tune, TL
MasterMeter, TL Metro, TL Space, TL Utilities, Transfuser,
Trillium Lane Labs, Vari-Fi Velvet, X-Form, and XMON are
trademarks or registered trademarks of Digidesign and/or Avid
Technology, Inc. Xpand! is Registered in the U.S. Patent and
Trademark Office. All other trademarks are the property of their
respective owners.
Product features, specifications, system requirements, and
availability are subject to change without notice.
Guide Part Number 9106-60031-00 REV A 11/08
Documentation Feedback
At Digidesign, we're always looking for ways to improve our
documentation. If you have comments, corrections, or
suggestions regarding our documentation, email us at
techpubs@digidesign.com.
Warning
This product contains chemicals, including lead, known to the
State of California to cause cancer and birth defects or other
reproductive harm. Wash hands after handling.
Communications & Safety Regulation Information
Compliance Statement
The model 192 I/O complies with the following standards
regulating interference and EMC:
• FCC Part 15 Class A
• EN55103 – 1, environment E4
• EN55103 – 2, environment E4
• AS/NZS 3548 Class A
Radio and Television Interference
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules.
Communications Statement
This equipment has been tested to comply with the limits for a
Class A digital device. Changes or modifications to this
192 I/O not authorized by Digidesign, Inc., could void the
Certification and negate your authority to operate the 192 I/O.
This 192 I/O was tested for CISPR compliance under
conditions that included the use of peripheral devices and
shielded cables and connectors between system components.
Digidesign recommends the use of shielded cables and
connectors between system components to reduce the
possibility of causing interference to radios, television sets,
and other electronic devices.
Safety Statement
This equipment has been tested to comply with USA and
Canadian safety certification in accordance with the
specifications of UL Standards; UL1419 and Canadian CSA
standard; CSA C22.2 No.1-M90. Digidesign Inc., has been
authorized to apply the appropriate UL & CUL mark on its
compliant equipment.
Important Safety Instructions
When using electric or electronic equipment, basic precautions
should always be followed, including the following:
• Read all instructions before using this equipment.
• To avoid the risk of shock, keep this equipment away from
rain water, and other moisture. Do not use this equipment
if it is wet.
• The equipment should only be connected to the correct
rating power supply as indicated on the 192 I/O.
• Do not attempt to service the equipment. There are no
user-serviceable parts inside. Please refer all servicing to
authorized Digidesign personnel.
• Any attempt to service the equipment will expose you to a
risk of electric shock, and will void the manufacturer’s
warranty.
Warning!
• HD audio interfaces need room at their sides to maintain
proper air flow and cooling.
• Do not install these units into a rack or other enclosure that
doesn't leave room on either side for the unit fans.
• Do not block the sides of the units (where fans are), or
disconnect the fan.
• If the units are racked up in a case, remove all lids, doors,
or covers before operating the units.
• Failure to do so can result in the units overheating very
quickly, which can permanently damage them.
Contents iii
contents
Chapter 1. Introduction to the 192 I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
192 I/O Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
System Requirements and Compatibility Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Digidesign Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
About This Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
About www.digidesign.com . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 2. 192 I/O Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
192 I/O Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
192 I/O Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Using Input and Output Trims . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Appendix A. Adding or Removing I/O Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Installing an I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Removing an I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Appendix B. Pinout Diagrams for the DB-25 Connectors. . . . . . . . . . . . . . . . . . . . . . . . 19
Analog Output DB-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Analog Input (+4 dBu) DB-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Analog Input (–10dB(V)) DB-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
AES/EBU DB-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TDIF DB-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Appendix C. 192 I/O Calibration Mode Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
About Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Calibrating the 192 I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
192 I/O Guideiv
Chapter 1: Introduction to the 192 I/O 1
chapter 1
Introduction to the 192 I/O
The Digidesign® 192 I/O™ 16-channel digital
audio interface is designed for use in a
Pro Tools|HD
®
system.
The 192 I/O features 24-bit analog-to-digital
(A/D) and digital-to-analog (D/A) converters,
and supports sample rates of up to 192 kHz.
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 Output channels can include:
• Eight channels of 24-bit D/A and A/D converters for superior analog input and output at sample 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-channel AES/EBU I/O supports
sample rates of up to 96 kHz on all channels, and up to 192 kHz on four channels
simultaneously. Two-channel AES/EBU I/O
supports sample rates of up to 96 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.
• External Clock input and output for synchronizing 192 I/O with external 1x Word Clock
or 256x (Slave Clock) devices.
• Legacy Port for Digidesign-qualified
Pro Tools|24 MIX™ audio interfaces.
• Optional addition of cards to expand analog
or digital I/O.
• Simultaneous use of multiple Pro Tools|HD
®
audio interfaces to further expand system input and output. For more information see the
Expanded Systems Guide.
What’s Included
• 192 I/O audio interface
•AC power cable
• DigiLink cable (18 inches [0.46m])
• BNC cable (18 inches [0.46m])
•192I/O Guide
• Digidesign Registration Information Card
192 I/O Guide2
System Requirements and
Compatibility Information
The Digidesign 192 I/O requires a Digidesignqualified Pro Tools|HD system.
Digidesign can only assure compatibility and
provide support for hardware and software it has
tested and approved.
For complete system requirements and a list of
Digidesign-qualified computers, operating systems, hard drives, and third-party devices, refer
to the latest information on the Digidesign website:
www.digidesign.com/compatibility
Digidesign Registration
Review the enclosed Digidesign Registration
Information Card and follow the instructions
on it to quickly register your purchase online.
Registering your purchase is the only way you
can be eligible to receive complimentary technical support and future upgrade offers. This is
one of the most important steps you can take as
a new user.
About This Guide
This guide provides a basic overview of the
192 I/O features and functionality.
For complete instructions on connecting and
configuring your Pro Tools|HD system, see the
HD Setup Guide.
For additional information about using
Pro Tools software, see the Pro Tools Reference
Guide.
Conventions Used in This Guide
All Digidesign guides use the following conventions to indicate menu choices and key
commands:
:
The following symbols are used to highlight
important information:
Convention Action
File > Save Choose Save from the File
menu
Control+N Hold down the Control key
and press the N key
Control-click Hold down the Control key
and click the mouse button
Right-click Click with the right mouse
button
User Tips are helpful hints for getting the
most from your system.
Important Notices include information that
could affect your data or the performance of
your system.
Shortcuts show you useful keyboard or
mouse shortcuts.
Cross References point to related sections in
this guide and other Digidesign guides.
Chapter 1: Introduction to the 192 I/O 3
About www.digidesign.com
The Digidesign website (www.digidesign.com) is
your best online source for information to help
you get the most out of your Pro Tools system.
The following are just a few of the services and
features available.
Product Registration Register your purchase
online. See the enclosed Digidesign Registration
Information Card for instructions.
Support and Downloads Contact Digidesign
Technical Support or Customer Service; download software updates and the latest online
manuals; browse the Compatibility documents
for system requirements; search the online Answerbase; or join the worldwide Pro Tools community on the Digidesign User Conference.
Training and Education Study on your own using
courses available online or find out how you can
learn in a classroom setting at a certified
Pro Tools training center.
Products and Developers Learn about Digidesign
products; download demo software or learn
about our Development Partners and their plugins, applications, and hardware.
News and Events Get the latest news from
Digidesign or sign up for a Pro Tools demo.
Pro Tools Accelerated Videos Watch the series of
free tutorial videos. Accelerated Videos are designed to help you get up and running with
Pro Tools and its plug-ins.
To learn more about these and other resources
available from Digidesign, visit the Digidesign
website (www.digidesign.com).
192 I/O Guide4
Chapter 2: 192 I/O Overview 5
chapter 2
192 I/O Overview
This chapter describes the front and back panel features of the 192 I/O.
192 I/O Front Panel
Power Switch and LED Ring
This button turns the 192 I/O on and off.
The LED ring around the power button will light
green to indicate that the unit has powered up
successfully and is connected to an active
Pro Tools|HD system. If the LED ring is orange,
the unit has power, but the computer it is connected to is shut down.
Sample Rate
These LEDs display the current sample rate of
the 192 I/O internal crystal oscillator: 44.1 kHz,
48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, or
192 kHz. The sample rate can be set in Pro Tools
when you create a new session, or in the Hardware Setup or Playback Engine dialogs if no session is open.
See the HD Setup Guide for complete system installation and configuration instructions. If you are
adding the 192 I/O to an existing system, see the
Expanded Systems Guide.
192 I/O Front Panel
192 I/O Guide6
Loop Master LED
The LOOP MASTER LED indicates which
Pro Tools|HD audio interface is the master
Pro Tools peripheral. The Loop Master LED will
be continuously lit on the current Loop Master
peripheral only, and unlit on all other peripherals. (Only one Pro Tools|HD I/O can be Loop
Master at a time.) The Loop Master LED will always be lit with a single interface.
Loop Master defaults to the first Pro Tools|HD
peripheral connected to the primary, or “core”
Pro Tools|HD card. On Pro Tools|HD (for PCIe)
this is the Accel Core card. On Pro Tools|HD (for
PCI) this is the HD Core card.
Sync Mode LEDs
The SYNC MODE LEDs indicate the current
Clock Source as set in Pro Tools.
INT (Internal) Indicates the 192 I/O sample clock
is generated by its internal crystal oscillator, as
determined by the session Sample Rate.
DIG (Digital) Indicates that an external AES/EBU,
TDIF, Optical (ADAT), or S/PDIF device is providing system clock. If no valid clock source is
detected, 192 I/O will switch to INT, the DIG
LED will flash, and an error message will appear
on-screen in Pro Tools.
If at least two channels are not assigned from
the selected digital port in the Main page of the
Hardware Setup dialog, or if no valid clock
source is detected at this port, 192 I/O will
switch to INT and the DIG LED will flash.
LOOP Indicates that the 192 I/O is slaving to another Pro Tools|HD I/O through Loop Sync.
EXT (External) Indicates that the 192 I/O is using the EXT CLOCK IN port for system synchronization.
External Clock input and output do not have to
be at the Word clock rate. EXT CLOCK IN synchronization will typically be 1x the current session sample rate. However, for sample rates
higher than 48 kHz, the 192 I/O will generate a
choice of 1x or a base rate of 44.1 kHz or 48 kHz,
depending upon the higher rate, as follows:
Meters
These four-segment LEDs indicate signal level
for each of the sixteen channels. The top row of
meters indicates input levels, and the bottom
row shows output levels. These meters are calibrated at –42 dB, –18 dB, –6 dB, and 0 dB, respectively.
Session Sample Rate Word Clock Support
44.1 kHz 44.1 kHz
(or 256x out)
48 kHz 48 kHz
(or 256x out)
88.2 kHz 88.2 kHz
44.1 kHz
96 kHz 96 kHz
48 kHz
176.4 kHz 176.4 kHz
44.1 kHz
192 kHz 192 kHz
48 kHz
Note that 0 dB is not to be confused with
clipping; use the on-screen meters in
Pro Tools to determine whether a signal is
clipping.
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