92 Digital I/O™
Copyright © 2006 Digidesign, a division of Avid Technology, Inc. All rights reserved. This guide may not be duplicated in whole or in part without the express written consent of Digidesign. Avid, Digidesign, Avid, and Pro Tools are either trademarks or registered trademarks of Avid Technology, Inc. in the US and other countries. All other trademarks contained herein are the property of their respective owners.
contents Chapter 1. Introduction to the 192 Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 192 Digital I/O Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 What’s Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
iv 192 Digital I/O Guide
chapter 1 Introduction to the 192 Digital I/O The Digidesign 192 Digital I/O 16-channel, alldigital audio interface is for use in a Pro Tools|HD system. The 192 Digital I/O supports the major digital audio I/O formats (AES/EBU, S/PDIF, ADAT Lightpipe, and TDIF) and sample rates of up to 192 kHz.
What’s Included • 192 Digital I/O • AC power cable • DigiLink cable (1.5ft. [0.46m]) • BNC cable (1.5ft. [0.46m]) System Requirements The Digidesign 192 Digital I/O requires a Digidesign-qualified Pro Tools|HD system. Compatibility Information Digidesign can only assure compatibility and provide support for hardware and software it has tested and approved. For a list of Digidesign-qualified computers, operating systems, hard drives, and third-party devices, refer to the Digidesign Web site (www.
Conventions Used in This Guide Digidesign guides use the following conventions to indicate menu choices and key commands: Convention Action File > Save Choose Save from the File menu Control+N While pressing the Control key, press the N key Control-click While pressing the Control key, click the mouse button Right-click (Windows) Click with the right mouse button The following symbols are used to highlight important information: User Tips are helpful hints for getting the most from your system.
4 192 Digital I/O Guide
chapter 2 192 Digital I/O Overview This chapter describes the front and rear panel features of the 192 Digital I/O. See the Pro Tools|HD Getting Started Guide for complete system installation and configuration instructions. If you are adding the 192 Digital I/O to an existing system, see the Expanded Systems Guide. 192 Digital I/O Front Panel 192 Digital I/O front panel Power Switch and LED Ring Sample Rate This button turns the 192 Digital I/O on and off.
Loop Master LED The LOOP MASTER LED indicates which Pro Tools|HD audio interface is the master Pro Tools peripheral. Loop Master defaults to the first Pro Tools|HD I/O connected to the “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. Loop Master will always be lit in systems with a single interface. In expanded systems, only one Pro Tools|HD I/O can be Loop Master at a time.
192 Digital I/O Rear Panel The 192 Digital I/O has the following rear panel features: Bay 1: Digital I/O Card (Channels 1–8) Enclosure Ports Bay 2: Digital I/O Card (Channels 9–16) 192 I/O rear panel Inputs and outputs are provided by the two Digital I/O Cards, and the built-in Enclosure ports. The two empty bays (located in the middle of the rear panel) are not expandable. The TDIF and ADAT outputs will output up to 48 kHz. The AES/EBU output can output supported sample rates from 44.1 kHz to 192 kHz.
Digital Formats Enclosure Connectors AES/EBU Each card contains DB-25 connectors for eight channels of AES/EBU I/O. Each of the four paired channels of AES/EBU on each card is a balanced three-conductor signal that supports single wire I/O up to 96 kHz and dual wire I/O up to 192 kHz. The right half of the back panel of the 192 Digital I/O features a set of non-removable Enclosure connectors.
Optical (ADAT) In and Out EXT. CLOCK In and Out These Optical ports can be configured to function as two channels (stereo) Optical S/PDIF or as a third set of eight channels of Optical (ADAT) input and output. The External Clock I/O ports are standard BNC connectors that receive and output word clock. These ports can be used to synchronize the 192 Digital I/O with any word clock-capable device. In Optical S/PDIF mode, these ports support two-channel Optical input and output at sample rates up to 96 kHz.
DigiLink Length Specifications There are five different lengths of DigiLink cables: • 18” (0.46m), included with each interface • 12’ (3.6m), included with each Pro Tools|HD card • 25’ (7.62m) • 50’ (15.25m), the maximum length supported for 192 kHz sessions (sold separately) • 100’ (30.5m), the maximum length supported by 96 kHz sessions (sold separately) For more information about DigiLink cables, refer to Digidesign Web site (www.digidesign.com).
appendix a Card Removal and Replacement Removing an I/O Card In the event of a problem with either of the digital I/O cards in your 192 Digital I/O, you can remove the card and send it to Digidesign for repair. The modular nature of the Pro Tools|HD system allows you to simply return the specific card, instead of the entire 192 Digital I/O. Pro Tools|HD will continue to function while missing a single card. It will not function if more than one of the factory-installed cards is removed.
Hardware Setup Changes The Hardware Setup dialog reflects the removal of an I/O card by settings corresponding inputs and outputs to None. The remaining inputs and outputs will function normally. Replacing an I/O Card To replace a card: 1 Power off and disconnect the 192 Digital I/O from your system. 2 Make sure that the 192 Digital I/O is plugged in so that it is grounded.
10 Gently push the cable connector into the card’s connector. The ridge on the cable connector must be line directly into the groove on the card connector. Be very careful not to bend any of the pins. Troubleshooting ◆ If the ring of LEDs around the power switch does not turn from orange to green the computer is started, make sure you reconnected the DigiLink cable to the Primary port on the rear of the unit.
14 192 Digital I/O Guide
appendix b Pinout Diagrams for the DB-25 Connectors AES/EBU DB-25 1-2 RCV 3-4 RCV 5-6 RCV 7-8 RCV 1-2 XMT 3-4 XMT 5-6 XMT 7-8 XMT CH12_RCV_HOT CH12_RCV_COLD CH12_RCV_GND CH34_RCV_HOT CH34_RCV_COLD CH34_RCV_GND CH56_RCV_HOT CH56_RCV_COLD CH56_RCV_GND CH78_RCV_HOT CH78_RCV_COLD CH78_RCV_GND CH12_XMT_HOT CH12_XMT_COLD CH12_XMT_GND CH34_XMT_HOT CH34_XMT_COLD CH34_XMT_GND CH56_XMT_HOT CH56_XMT_COLD CH56_XMT_GND CH78_XMT_HOT CH78_XMT_COLD CH78_XMT_GND 24 12 25 10 23 11 21 9 22 7 20 8 18 6 19 4 17 5 15
TDIF DB-25 CH12_RCV_DATA GND1 3-4 CH34_RCV_DATA GND2 5-6 CH56_RCV_DATA GND3 7-8 CH78_RCV_DATA GND4 1-2 CH12_XMT_DATA GND5 3-4 CH34_XMT_DATA GND6 5-6 CH56_XMT_DATA GND7 7-8 CH78_XMT_DATA GND8 RCV CLK+CTRL RCV_LRCK RCV_EMPHASIS RCV_FS1 RCV_FSO XMT CLK+CTRL XMT_LRCK XMT_EMPHASIS XMT_FS1 XMT_FSO XMT DATA RCV DATA 1-2 GND9 MH1 MH2 13 25 12 24 11 23 10 22 1 14 2 15 3 16 4 17 9 21 8 20 5 18 19 6 7 26 27 NC= NC= NC= DB25F_RA_TDIF FB30 FB31 22PF 22PF GND_C GND_C 16 192 Digital I/O Gui
index Numerics H 1622 10 192 I/O Back Panel 7 Front Panel 5 Overview 5 24-bit ADAT Bridge 10 882|20 10 888|24 10 Hardware Setup 5, 9 A AC Power connector 9 Accessory Port 10 AES/EBU 6, 8 C Clock Source 6, 9 I INT (Internal) 6 L LED ring 5 Legacy port 10 Legacy port 10 Lightpipe Optical port 8 Loop Master 6 mode 6 Loop Master LED 6 Loop Sync 6 sample rates 9 D DB–25 connectors 7 DIG (Digital) 6 DigiLink expansion 10 secondary 10 M Meters 6 MIX-series peripherals 10 O E Enclosure Optical (ADAT) 8 C
P Pinout Diagrams 15 Playback Engine 5 Port Limitations Legacy and Expansion Peripherals 10 Power Switch and LED ring 5 Primary DigiLink 9 R registration 2 RF interference 8 S S/PDIF 6, 8 sample clock 6 Sample Rate 5, 6 conversion 7 secondary I/O 10 Sync Mode LEDs 6 synchronization 9 T TDIF 8 TDIF DB-25 Pinout Diagram 16 Troubleshooting 13 W word clock 6, 9 18 192 Digital I/O Guide
