Avid Technology HD I Manual
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Avid Technology HD I Manual

Avid Technology HD I Manual

Multi-channel digital audio interface
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HD I/O Guide
Version 8.1

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  • Page 1 HD I/O Guide Version 8.1...
  • Page 2 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,...

  • Page 3: Table Of Contents

    Configuring HD I/O ........
  • Page 4 TDIF DB-25 ............35 Appendix C. HD I/O Calibration Mode Instructions .

  • Page 5: Chapter 1. Introduction

    192 kHz. 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz with Analog In and Analog Out HD I/O cards HD I/O comes in three standard configurations: • Soft Clip and Curv limiting circuits to protect •...

  • Page 6: What's Included

    HD I/O requires a qualified Pro Tools|HD system. • External Clock input and output for synchro- nizing HD I/O with external Word Clock de- Avid can only assure compatibility and provide vices support for hardware and software it has tested and approved.

  • Page 7: About Www.avid.com

    Conventions Used in This Guide About www.avid.com All of our guides use the following conventions The Avid website (www.avid.com) is your best to indicate menu choices and key commands: online source for information to help you get the most out of your Pro Tools system. The fol- Convention Action lowing are just a few of the services and features...
  • Page 8 HD I/O Guide...

  • Page 9: Chapter 2. Hd I/O Overview

    This chapter describes the front and back panel features of the HD I/O. See the Pro Tools| HD User Guide for complete system installation and configuration instructions. If you are adding the HD I/O to an existing system, see the Expanded Systems Guide . HD I/O Front Panel...
  • Page 10 However, for sample rates higher than uously lit on the current Loop Master peripheral 48 kHz, HD I/O generates a choice of 1x, 2x, or only, and unlit on all other peripherals. (Only 4x of a base rate of 44.1 kHz or 48 kHz, as...

  • Page 11: Hd I/O Back Panel

    PRIMARY PORT Bay 4: Empty for Optional card Bay 2: Analog Out card HD I/O Back Panel, 8 x 8 x 8 configuration shown Although the HD I/O is a sixteen-channel audio Input and Output Cards interface, it has up to 94 inputs and outputs...
  • Page 12 Analog Input Analog Output The HD I/O Analog In card contains connectors The HD I/O Analog Out card contains a single for analog audio input with 24-bit, 192 kHz A/D DB–25 connector and Output Trims for eight converters. Input is provided through two dis- channels of analog audio output.
  • Page 13 176.4 kHz or 192 kHz. TDIF DB–25 connectors for eight channels of TDIF input and output. Conforms to standard The right half of the back panel of HD I/O fea- eight-channel TDIF pinouts. For more informa- tures a set of non-removable connectors that are tion, see Appendix B, “Pinout Diagrams for the...
  • Page 14 Configure HD I/O for ADAT S/MUX on the enclosed ADAT port and also on the ADAT This port is only available when HD I/O is con- port on the Digital I/O card to get 8 chan- nected to a Pro Tools|HD card (it is not available nels at 88.2/96 kHz or 4 channels at...
  • Page 15 DigiLink Mini and DigiLink Cables The DigiLink to DigiLink Mini adapter cables let you connect your HD I/O to Pro Tools|HD cards Use DigiLink cables with a DigiLink to DigiLink in your computer (Pro Tools|HD cards include a Mini adapter cable to connect HD I/O to a 12’...
  • Page 16 SYNC HD). AC Power This connector accepts a standard AC power ca- ble. HD I/O is auto power-selecting (100V to 240V) and will automatically work with a stan- dard modular cable (IEC) to connect to AC power outlets in any country.

  • Page 17: Chapter 3. Connecting Hd I/O

    12-foot DigiLink Mini to DigiLink cable, or a 12-foot DigiLink cable with a DigiLink to DigiLink Mini adapter Figure 1. HD I/O connected to the DigiLink Port on a Pro Tools|HD Core card (16-channel I/O system) Chapter 3: Connecting HD I/O...
  • Page 18 To connect multiple HD I/Os to a Pro Tools|HD Connecting Loop Sync system: If you are using two (or more) Pro Tools audio Connect the Primary Port of the first HD I/O interfaces or a SYNC peripheral, Loop Sync must...
  • Page 19 Pro Tools|HD Accel card Figure 2. HD OMNI connected to the DigiLink Port on a Pro Tools|HD Core card and HD I/O connected to the DigiLink Mini Expansion port on HD OMNI. A second HD I/O is connected to the DigiLink Port on a Pro Tools|HD Accel card with a third HD I/O connected to the Expansion port on the second HD I/O.
  • Page 20 HD I/O Guide...

  • Page 21: Chapter 4. Hd I/O Configuration

    This chapter explains how to configure To change the default Sample Rate for new sessions: Pro Tools for use with HD I/O. If a Pro Tools session is currently open, close For more information about configuring your Pro Tools|HD system, see the Pro Tools|HD Choose Setup >...

  • Page 22: Clock Source

    • AES/EBU [Encl] (at all sample rates) • AES/EBU 1–8 (Single Wire in stereo pairs at all sample rates) • AES/EBU 1–4 (Dual Wire) (in stereo pairs at 176.4 and 192 kHz) • ADAT 1–8 (at 44.1 and 48 kHz) HD I/O Guide...

  • Page 23: Configuring Hd I/O

    Select the Identify option, located in the lower left corner of the Hardware Setup dialog. This il- If you have at least one HD I/O AD card, click luminates all the LEDs on the front panel of the the Analog In tab and configure the options. If selected audio interface.
  • Page 24 At session sample rates above 48 kHz, sam- ple rate conversion for the TDIF and Optical HD I/O Hardware Setup, Main page (8 x 8 x 8 shown) (ADAT) inputs on the HD I/O Digital card is automatically enabled on all eight inputs of the selected format unless you are using S/MUX Optical.
  • Page 25 Tascam DA-30 DAT re- Which physical outputs are available depends corders, select the Tascam option under S/PDIF on the sample rate and on which HD I/O Expan- Format. sion cards you have installed (for example, if no HD I/O DA card is installed, no analog outputs Ext.
  • Page 26 9–16 pages provide the same controls for the corresponding physical inputs on the HD I/O Soft Clip Attenuates the incoming analog signal, AD card. If no HD I/O AD Expansion card is in- providing extra protection from temporary clip- stalled, these tabs are not available.
  • Page 27 HD I/O Digi- HD I/O Hardware Setup, Digital Format options at 44.1 kHz tal card. If no HD I/O Digital Expansion card is installed, these tabs are not available. HD I/O Hardware Setup, Digital Format options at...
  • Page 28 S/MUX). ADAT 1–8 Enable this option for eight channels of ADAT input. This is the only option available at sample rates of 44.1 kHz and 48 kHz. This op- tion is not available at higher sample rates. HD I/O Guide...

  • Page 29: Sample Rate Conversion

    The Set To Default button sets all settings to the factory defaults, except for the Digital Format set- ting in the Main page. SRC enabled for AES/EBU Input channels 1–2 and 3–4 at a Sample Rate of 96 kHz Chapter 4: HD I/O Configuration...

  • Page 30: Using Input Trims

    +4 dBu setting on the HD I/O. HD I/O is calibrated at the factory for 18 dB Input Trims headroom at the +4 dBu setting. The Input Trims below the two DB–25 connec-...

  • Page 31: Appendix A. Adding Or Removing I/O Cards

    Adding or Removing I/O Cards The HD I/O has four Expansion I/O bays on the The factory-installed cards can be removed, if back of the unit. Depending on which version of needed, for servicing, or to swap out cards for HD I/O you purchased, one, two, or none of different studio setups.
  • Page 32 Removing the 50-pin cable connector from an I/O card Removing the top cover screws Gently remove the card, pulling it straight out Lift off the top panel of the HD I/O and set it from the chassis. aside. Remove the screws on the back panel for the I/O card you want to remove.

  • Page 33: Installing An Expansion I/O Card

    Place the card in a static-free bag and keep it in Lift off the top of the HD I/O and set it aside. a safe place (if you are not sending it to Avid for If necessary, do one of the following: service).
  • Page 34 Securing the I/O card to the back panel of the HD I/O Locate the raised ridge in the middle of the connector on one end of the 50-pin cable that connects the I/O card to the HD I/O chassis.
  • Page 35 50-pin cable that the new card is recognized: that connects the I/O card to the HD I/O chassis. • If you installed a Digital Expansion card, This ridge is only on one side of the connector, you should see a new tab called “Digital...
  • Page 36 If the DigiLink or DigiLink Mini cable is se- curely fastened and the other end is plugged into a Pro Tools|HD card, you may have inadver- tently disconnected another 50-pin cable when installing the card. HD I/O Guide...

  • Page 37: Appendix B. Pinout Diagrams For The Db-25 Connectors

    appendix b Pinout Diagrams for the DB-25 Connectors Analog Output DB-25 Analog Input (+4 dBu) DB-25 +4" Analog Outputs CH1_HOT CH1_HOT CH1_COLD CH1_COLD CH1_GND CH1_GND CH2_HOT CH2_HOT CH2_COLD CH2_COLD CH2_GND CH2_GND CH3_HOT CH3_HOT CH3_COLD CH3_COLD CH3_GND CH3_GND CH4_HOT CH4_HOT CH4_COLD CH4_COLD CH4_GND CH4_GND...

  • Page 38: Analog Input (-10Dbv) Db-25

    CH3_HOT CH56_RCV_COLD CH3_COLD CH56_RCV_GND CH3_GND CH78_RCV_HOT CH4_HOT CH78_RCV_COLD CH4_COLD CH78_RCV_GND CH4_GND CH12_XMT_HOT CH5_HOT CH12_XMT_COLD CH5_COLD CH12_XMT_GND CH5_GND CH34_XMT_HOT CH6_HOT CH34_XMT_COLD CH6_COLD CH34_XMT_GND CH6_GND CH56_XMT_HOT CH7_HOT CH56_XMT_COLD CH7_COLD CH56_XMT_GND CH7_GND CH78_XMT_HOT CH8_HOT CH78_XMT_COLD CH8_COLD CH78_XMT_GND CH8_GND NC_1 NC_1 HD I/O Guide...

  • Page 39: Tdif Db-25

    TDIF DB-25 CH12_RCV_DATA GND1 CH34_RCV_DATA GND2 CH56_RCV_DATA GND3 CH78_RCV_DATA GND4 CH12_XMT_DATA GND5 CH34_XMT_DATA GND6 CH56_XMT_DATA GND7 CH78_XMT_DATA GND8 RCV_LRCK RCV_EMPHASIS CLK+CTRL RCV_FS1 RCV_FS0 XMT_LRCK XMT_EMPHASIS CLK+CTRL XMT_FS1 XMT_FS0 GND9 DB25F_RA_TDIF FB30 FB31 22PF 22PF GND_C GND_C GND_C GND_A GND_A Appendix B: Pinout Diagrams for the DB-25 Connectors...
  • Page 40 HD I/O Guide...

  • Page 41: Appendix C. Hd I/O Calibration Mode Instructions

    The concept of headroom is slightly different for your mixing console. analog and digital devices. The HD I/O has +4 dBu and –10 dBV inputs, and Analog Most analog devices allow for a certain +4 dBu outputs, each with its own trim pot for amount of headroom above 0 VU.

  • Page 42: Calibrating The Hd Io

    Create a mono Auxiliary Input track for each change the input and output assignments for HD I/O output you want to calibrate. Set the more HD I/O channels or use it as a base to make output assignment for each of these Auxiliary your own calibration template.
  • Page 43 Calibration Mode. It is best to calibrate the inputs with the back of the HD I/O facing you and the Pro Tools screen well in sight. If you cannot see the Pro Tools screen, consider asking another person to assist you with the input calibration.

  • Page 44: Switching Jumpers On The Analog Output Card

    Analog Output Card Remove the Output card from the HD I/O chassis (as described in Appendix A, “Adding or Each Analog Output card for HD I/O provides a Removing I/O Cards”). jumper for each of the eight channels of output on the card to switch between a Hi and Lo out- Place the card on a stable, static free surface.

  • Page 45: Appendix D. Compliance Information

    appendix d Compliance Information Proposition 65 Warning Environmental Compliance This product contains chemicals, including lead, known to the State of California to cause cancer and Disposal of Waste Equipment by Users birth defects or other reproductive harm. Wash hands in the European Union after handling.

  • Page 46: Emc (Electromagnetic Compliance)

    • Consult the dealer or an experienced radio/TV technician for help. Any modifications to the unit, unless expressly approved by Avid, could void the user's authority to operate the equipment. HD I/O Guide...

  • Page 47: Safety Compliance

    17) For products with a power switch: The main power switch is located on the front panel of the 1) Read these instructions. HD I/O. It should remain accessible after installation. 2) Keep these instructions. 18) The equipment shall be used at a maximum ambient temperature of 40°...
  • Page 48 HD I/O Guide...

  • Page 49: Index

    index Symbols +4 dBu 8, 26, 37 cables DigiLink 11 DigiLink Mini 11 Numerics calibrate 38 –10 dBV 8, 26, 37 calibrating the 888/24 I/O 38 16 x 16 1 calibration 26 16 x 16 analog 1 cards 8 x 8 x 8 1 Analog In 7 Analog Out 7 Digital I/O 7...
  • Page 50 PRIMARY PORT 10 Adding or Removing 27 Input cards 7 Input channels 21 registration 2 Input Levels 26 Registration Information Card 2 Input Trims 8, 26 Removing I/O Cards 27 inputs calibrating 38 Internal clock mode 6 (INT) 6 HD I/O Guide...
  • Page 51 S/PDIF In/Out 10 Sample Rate 5, 17 conversion 9 conversion, AES/EBU 25 conversion, Optical (ADAT) 25 conversion, TDIF and Optical (ADAT) 25 Session 6 Sample Rate Conversion 25 single-wire mode 9 Soft Clip 22 Sync Mode LEDs 6 Sync Mode LEDs 6 synchronization 11 external clock options 18 system requirements 2...
  • Page 52 Avid Technical Support (USA) Product Information 2001 Junipero Serra Boulevard Visit the Online Support Center at For company and product information, Daly City, CA 94014-3886 USA www.avid.com/support visit us on the web at www.avid.com...

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