Digidesign ADAT Bridge I/O Digidesign Inc. 3401-A Hillview Avenue Palo Alto, CA 94304 USA tel: 650·842·7900 fax: 650·842·7999 Technical Support (USA) 650·842·6699 650·856·4275 Product Information 650·842·6602 800·333·2137 Fax on Demand 1-888-USE-DIGI (873-3444) World Wide Web www.digidesign.com Digidesign FTP Site ftp.digidesign.
Copyright Communications & Safety Regulation Information This User’s Guide is copyrighted ©2000 by Digidesign, a division of Avid Technology, Inc. (hereafter “Digidesign”), with all rights reserved. Under copyright laws, this manual may not be duplicated in whole or in part without the written consent of Digidesign.
contents Chapter 1. Introducing the Digidesign ADAT Bridge I/O . . . . . . . . . . . . . . . . . . . . . . . . . 1 About This User’s Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Chapter 2. Connecting Your Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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chapter 1 Introducing the Digidesign ADAT Bridge I/O The Digidesign ADAT Bridge I/O allows you to combine the power and flexibility of Pro Tools™ disk-based digital audio production system with the convenience and affordability of Alesis ADAT®, ADAT-compatible modular digital multitracks (MDMs), and ADAT optical interfaceequipped digital mixing consoles.
Capabilities The ADAT Bridge I/O Interface allows you to digitally transfer up to 16 tracks/channels simultaneously from ADAT into Pro Tools for: • Non-linear editing • Plug-In effects processing • Digital mixing with automation The ADAT Bridge I/O allows you to Digitally transfer up to 16 tracks/channels simultaneously per ADAT Bridge I/O from Pro Tools to ADAT to: • Replace original tracks with edited tracks • Transfer Pro Tools tracks to another Pro Tools/ADAT system via affordable S-VHS tape media • Bac
The following symbols are used to highlight important information: ✽ User Tips are helpful hints for getting the most from your system. ▲ Important Notices include information that could affect your session data or the performance of your system. • The original ADAT should be equipped with firmware version 4.03 or higher. • The ADAT XT should be equipped with firmware version 1.04 or higher. • The ADAT M-20 should be equipped with firmware version 1.0 or higher.
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chapter 2 Connecting Your Studio This chapter covers connecting the ADAT Bridge I/O to your Pro Tools system and to an ADAT-compatible device. There are two types of connections that can be made: Before You Begin Primary Connections (all systems) • Make sure your Pro Tools system is properly installed. • Turn off your computer, hardware interfaces, and ADATs. Making connections while power is on can damage your system. Connecting the ADAT Bridge I/O to your ADAT or ADAT-compatible devices.
The enclosed BNC cable is the suggested maximum length for Word clock connections to the ADAT Bridge. It is possible to utilize longer BNC cables, but doing so can introduce clock problems which will result in clicks, pops and other digital noise on channel 1 of your system.
ADAT Bridge I/O Front Panel 1 2 3 4 5 Figure 1. ADAT Bridge I/O front panel 1. Power Switch This switch applies power to the Digidesign ADAT Bridge I/O. The “I” position is on. The “O” position is off. 2. Sync Mode LEDs These LEDs indicate which master sample clock reference is currently being used by the ADAT Bridge I/O. The ADAT Bridge I/O’s 16 input/outputs are divided into 2 discrete groups: Group A (channels 1-8) and Group B (channels 9-16).
you can easily correct it by resetting the appropriate parameter. Internal When lit, this LED indicates that the ADAT Bridge I/O sample clock reference is its own internal clock. The internal clock frequency is determined by the Sample Rate setting in the Pro Tools Hardware dialog or Session Setup window. Internal sync mode is used whenever the ADAT Bridge I/O’s sample rate clock is not being determined by an external source such as an ADAT, DAT machine, or synchronization peripheral.
you wish to record a full 16 channels of audio from ADAT, Channel 1-2 input must be set to ADAT for both Group A and Group B. 4. Sample Rate These LEDs indicate the current sample rate of Group A and Group B of the ADAT Bridge I/O. If these LEDs are flashing, it indicates that the currently selected sample rate does not match the sample rate currently being received by the ADAT Bridge I/O. 5.
ADAT Bridge I/O Back Panel 1 2 3 4 5 6 77 8 9 10 Figure 2. ADAT Bridge I/O Back Panel 1. Analog Outputs These are balanced TRS (tip-ring-sleeve) connectors which carry audio output on channels 1-2. By routing a Pro Tools output mix to channels 1-2 you can then monitor an entire mix via these outputs. The ADAT Bridge I/O’s analog outputs feature 20-bit D/A convertors for superior audio quality.
Output is continuously active on the S/PDIF jacks, carrying audio routed to outputs 1-2 in Pro Tools. To avoid RF interference during S/PDIF transfers, we recommend that you use 75 ohm coaxial cable and don’t go beyond a maximum cable length of 10 meters. 8. Slave Clock In/Out The Slave Clock Out jack is a standard BNC connector that outputs a 256 times sample rate “Super Clock” signal for slaving additional ADAT Bridge I/Os, Audio Interfaces, or synchronization peripherals.
◆ Two ADATs: • Same as instructions for one ADAT, but using ADAT Bridge Group B Optical In/Out and ADAT #2 Optical Out/In. If you use a BRC or other device to synchronize your ADATs, refer to “Synchronization Connections” on page 16 for additional instructions on integrating the ADAT Bridge I/O into your system. The following sections provide optical connection instructions for systems with one or two ADATs.
manner and operating correctly. Refer to your ADAT manual if you need more information. Step 2: Pro Tools Interface Connections Quickstart Instructions, 50-pin data/interface cable: ◆ ◆ One ADAT (8-channel mode): • ADAT Bridge Computer A to interface port A on primary Pro Tools audio card (MIX, d24 or Disk I/O), or the I/O port on the Pro Tools audio card in the highest available slot.
Two ADATs (16-channel operation) The following describes connections for a single ADAT Bridge I/O and two ADATs. This basic configuration allows 16-channel transfer between Pro Tools and ADAT, but has no provisions for synchronizing playback or recording of the two devices (though the two ADATs will be in sync with each other by virtue of their 9-pin Sync connection). You will have to manually start and stop recording/playback of Pro Tools and ADAT independently.
If you also use a Digidesign 888 24 or 882 20 audio interface, you will most likely want to use them as your primary audio interface and use the ADAT Bridge as expansion I/O for your system. ▲ This section covers clock connections be- tween Pro Tools audio interfaces only. Many synchronization peripherals add their own requirements for clock. Refer to “Synchronization Connections” on page 16 for more information.
cording of the two devices. You will have to manually start and stop recording/playback of Pro Tools and ADAT independently. For frame/sample accurate transfers, you will need an optional third-party synchronization peripheral.
Setup A: Synchronizing Pro Tools and ADAT with an Alesis BRC serial cable to modem or printer port Standard MIDI Interface MIDI IN MIDI OUT MIDI Time Code MAC SERIAL MIDI in/out ADAT BRC Computer MIDI IN MIDI OUT REMOTE OUT TO ADAT to BRC 48 kHz word clock it ADAT 1 BRC 9-pin remote out Pro Tools card Pro Tools Y-cable ADAT 2 B A 50-pin interface cables optical cables in/out Digidesign ADAT Bridge to Pro Tools card word clock out from ADAT Bridge I/O to BRC 48 kHz word clock in Figure 3.
5 Make sure that your MIDI interface is 4 Use a BNC cable to connect the USD’s connected to your computer and other devices. Slave Clock Out to the Slave Clock In of your master Pro Tools audio interface. BRC Settings for Pro Tools-to-ADAT Transfer: Enable EXT SYNC, then make sure the BRC external clock/sync source is 48kHz Input. (To change this setting, press EDIT, then press EXT SYNC until Clock Source is displayed in the LED. Use the lowercase/uppercase increment arrows to scroll to 48kHz Input.
Setup B: Synchronizing Pro Tools and ADAT Using a JL Cooper DataSync2 serial cable to modem or printer port Standard MIDI Interface MIDI IN TO ADAT SYNC IN FROM ADAT SYNC OUT MAC SERIAL MIDI in/out JL Cooper DataSync 2 SMPTE OUT MIDI OUT MERGING IN MIDI IN Computer MIDI OUT 9-pin sync in/out ADAT 1 Pro Tools card Interface Y-cable ADAT 2 B A 50-pin interface cables optical cables in/out Digidesign ADAT Bridge to Pro Tools card Figure 4.
Setup C: Synchronizing Pro Tools and ADAT using the MTP AV Mark of the Unicorn MTP AV™ 256x clock signal (MTP AV out) serial cable to modem or printer port Computer 9-pin ADAT Sync cable ADAT 1 Pro Tools card Interface Y-cable ADAT 2 B A 50-pin interface cables optical cables in/out Digidesign ADAT Bridge to Pro Tools card 256x clock signal, to ADAT Bridge Slave Clock IN Figure 5.
Setup D: Synchronizing Pro Tools and ADAT Using a Digital TimePiece serial cable to modem or printer port Word clock (from ADAT Bridge) Computer Sony 9-pin IN OUT SMPTE VIDEO IN IN IN OUT OUT OUT S/PDIF DA-88 Sync IN ADAT Sync IN DA-88 Sync OUT ADAT Sync OUT REMOTE MIDI 2 EXPANSION 1 OUT WORD 1x WORD 256x Mark of the Unicorn Digital TimePiece™ MIDI 1 2 IN OUT IN 9-pin cable ADAT 1 Pro Tools card Interface Y-cable ADAT 2 B A 50-pin interface cables optical cables in/out Di
Setup E: Synchronizing Pro Tools and ADAT using an Opcode Studio 64XTC Opcode 64XTC™ serial cable to modem or printer port 256x clock signal (out) Computer MIDI OUT 1 ADAT 1 1A 2 MIDI IN 2A 3 4 1 2 3 4 9-pin ADAT Sync cable Pro Tools card Interface Y-cable ADAT 2 B A 50-pin interface cables optical cables in/out Digidesign ADAT Bridge to Pro Tools card 256x clock signal, to ADAT Bridge Slave Clock IN Figure 7.
Setup F: Connecting Pro Tools to an ADAT-Compatible Digital Mixing Console A final use for your Pro Tools/ADAT system is as an affordable means to connect with an ADAT-compatible, ADAT lightpipeequipped digital mixing console such as the Yamaha 02R, Ramsa DA7 and others. these optical connections, connect the word clock out of the ADAT Bridge I/O to the word clock in of the digital console. This is necessary for both systems to be able to synchronize to the same master clock reference.
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chapter 3 Using Your System This chapter explains how to start up, configure and use your Pro Tools/ADAT system. If you are using the ADAT Bridge as your primary Pro Tools audio interface and do not need positional sync between Pro Tools and ADAT, then the primary configuration instructions are all you need.
• Insert an ADAT tape. If you have multiple ADATs, there must always be a tape in the master ADAT. Configuring the ADAT Bridge for Pro Tools 3 Turn on synchronization or other MIDI To configure Pro Tools software: peripherals/interfaces. 1 Launch Pro Tools. Depending on your 4 Turn on the Pro Tools Audio master in- setup, one of the following will occur: terface. Depending on your studio setup, this could be the ADAT Bridge I/O, or it could be a different Pro Tools Audio Interface.
2 Choose the Playback Engine that corre- sponds to the master Digidesign card in your computer (MIX, d24, etc.). Refer to the Pro Tools System Installation Guide if you need more information. 3 If you have a MIX or d24 card, click the Interface Port pop-up and choose the port that your ADAT Bridge I/O is connected to: • If you have a single ADAT Bridge I/O port (Group A on ADAT Bridge back panel) connected to your card, choose port A.
10 Click OK to close the Playback Engine dialog when you have finished. Pro Tools will remember your configuration until you change it. If you wish to change your Pro Tools hardware configuration in the future, you can do it from any of these locations: • The Playback Engine dialog (in the Setups menu). – or – • The Hardware dialog (in the Setups menu).
If the ADAT Bridge is not the primary interface If the ADAT Bridge is not the primary audio interface, the ADAT Optical setting will not be an available choice for Sync Mode. If this is the case, select Internal unless you want to use Digital, as described above, for transferring material digitally into Pro Tools AES/EBU or S/PDIF ports. When set to Internal, the ADAT will lock to Pro Tools clock via the ADAT Bridge lightpipe connections.
Prepare Your ADAT Tapes Before You Begin If you plan to do any recording from Pro Tools to one or more ADATs, make sure that you have an ADAT formatted S-VHS cassette prepared for each ADAT in the system (see your ADAT Reference Manual for specific instructions). Because this can be time consuming, it is a good idea to allow plenty of time for formatting before you begin recording with your ADAT. When formatting ADAT tapes, be sure to set the sample rate to either 48 kHz or 44.
10 When you have finished recording, 3 On your ADAT, enable All Input Monitor click Stop in the Pro Tools Transport window and press Stop on the ADAT. button. Recording into Pro Tools Using the ADAT Analog Inputs Depending on your setup — particularly if you are using the ADAT Bridge I/O as your only Pro Tools interface — you may want to record into Pro Tools using the ADAT analog inputs.
Recording Tracks from Pro Tools to ADAT (Unsynchronized) The following section explains how to perform a basic, non-synchronized Pro Toolsto-ADAT audio transfer. To record Pro Tools tracks into ADAT: 1 Set the ADAT’s clock to Digital using its front panel buttons. (Before you do this, turn your monitor volume down, since ADATs can emit a loud pop when their clock source is changed.) 2 Insert the ADAT tape you wish to record on into your ADAT.
channel of analog source audio. Route the connected analog sources to them using the Input Selector pop-up on each Pro Tools track. Make sure to record-enable any audio tracks that you create in order to pass the audio to the ADAT. Recording from Pro Tools Digital Inputs to an ADAT 4 Use the Output Selector of each Pro Tools To record onto ADAT tracks from Pro Tools digital inputs: track to assign its output to an ADAT channel.
level faders. This will help you prevent overloading the ADAT’s inputs. 9 Press the Record and Play buttons on your ADAT. 10 Begin playback of the digital sources connected to your Pro Tools Audio Interface. The audio is recorded to the ADAT. 11 To stop recording, press Stop on your ADAT. Configuring Sync Synchronized transfers between Pro Tools and ADAT have special configuration requirements for clock, time code and other sync-related connections.
▲ The directions given here explain how to add a MIDI device to OMS. This setup assumes you have already configured your MIDI interface, if you are using one. You must configure the MIDI interface before configuring any OMS devices. To configure an OMS device: 1 Make sure that the peripheral and/or MIDI interface is turned on and connected properly to your system. 2 Launch Pro Tools. 3 From the Pro Tools Setups menu, choose the OMS MIDI Setup command.
11 In Pro Tools, choose Peripherals from the Setups menu. From the Device pop-up, choose Generic MTC Reader. From the Port pop-up, select the OMS port location that you defined in OMS Setup (modem or printer). Click OK to close this dialog. OMS should now be configured for communication between your peripheral and Pro Tools. ▲ Pro Tools requires that you disable (un- check) the “Use Apple Serial DMA driver when available” preference in OMS Setup.
Choosing the Transport Master In a synchronized setup, you must decide which system, Pro Tools or ADAT, will provide the positional reference for both systems and function as the transport master. This is necessary for both systems to start and stop playback/recording from the same time code/session location. Because Pro Tools can both broadcast and respond to MIDI Machine Control (MMC), you can use MMC to communicate transport commands (such as Play, Stop) between your devices.
Setup A: Synchronizing Pro Tools and ADAT with a BRC The following section explains how to synchronize Pro Tools/ADAT with a BRC. In this case, the BRC provides both the clock reference signal and the positional reference. This enables you to synchronize the ADAT and Pro Tools with near sample accuracy. Pro Tools transport is controlled by the BRC. You can also utilize MIDI Machine Control in this (and all other) sync setups. MMC configurations are covered later in this BRC section.
In Pro Tools: 6 In Pro Tools, choose Setups > Peripherals and display the Synchronization window. From the Device pop-up, choose Generic MTC Reader. From the Port pop-up, choose BRC (on the Macintosh) or the appropriate port of your MIDI interface (in Windows). Alternatively, if the name of the (BRC) OMS device does not appear here, choose the serial port to which your MIDI interface is connected.
Recording Tracks from Pro Tools to ADAT with a BRC This setup explains how to perform a synchronized Pro Tools-to-ADAT track transfer with a BRC. In this case Pro Tools provides the clock reference signal, but the BRC provides the positional reference and controls the Pro Tools Transport. To transfer audio from Pro Tools to ADAT: 1 Make sure the desired Pro Tools session is open and the Sync Mode is set to Internal in the Session Setup window. 2 On the BRC, make sure the Gen Sync but- ton is on.
Using MIDI Machine Control (MMC) with a BRC This section provides an example of how you can utilize MIDI Machine Control in your synchronized Pro Tools/ADAT system. MMC can often solve problems you may experience when trying to control one device from another’s transport while using certain combinations of sync peripherals. Refer to the Pro Tools Reference Guide for details on using MMC with Pro Tools. In this setup, Pro Tools is the transport master over a BRC/ADAT system using MIDI Machine Control (MMC).
Configuring Pro Tools 1 Choose Setups > Peripherals and open the Peripherals/Synchronization window. 2 Select “Generic timecode reader” as the synchronization Device, then choose the port that your MIDI interface is connected to (if in doubt, select Any).
To transfer audio from ADAT to Pro Tools: 1 Connect the DataSync and MIDI Inter- face to your system as shown in Chapter 2. On the ADAT: 2 Set the ADAT’s clock to Internal. On the DataSync2: 3 Turn on the DataSync2 after you’ve turned on the ADAT. This is necessary in order for the DataSync2 to communicate properly with the ADAT. Configuring the DataSync2 in OMS 4 Set the desired frame rate on the 8 In Pro Tools, choose Setups > Peripherals. DataSync2 by pressing the mode button.
Bridge I/O’s Group B inputs. If you have additional ADAT Bridges/ADATs, assign their inputs as well. (When Ch 1-2 input set to ADAT, Pro Tools automatically sets I/O pop-ups to ADAT Bridge Group A/B input & output labels.) 20 Press play on the ADAT’s transport. 12 Select a Pro Tools monitoring mode Recording Tracks from Pro Tools to ADAT with a DataSync2 (Auto Input Monitor or Input Only Monitor). 13 Choose Display > Time Code. 14 Choose Setups > Preferences, and then click Operations.
3 Make sure that the ADAT tape is format- ted to the same sample rate as the Pro Tools material you intend to transfer. 4 On the ADAT, record-enable the destina- tion ADAT tracks. Make sure that the same tracks are not configured as Pro Tools input sources or a feedback loop will occur. 5 In the Pro Tools Session Setup window: • Set Channel 1-2 input to ADAT (or Analog, if the ADAT Bridge is not your primary audio interface). • Set the Pro Tools Sync Mode to Internal.
Example Setups for the MTP AV FreeMIDI Device Specification window configured for an ADAT. Synchronization window with MTP AV (Pro Tools as transport master). To record from ADAT to Pro Tools: 1 In the Session Setup window: • Set Pro Tools Sync Mode to Internal. (Do not select ADAT Optical — Pro Tools must be slaved to the MTP AV). • Set Channel 1-2 Input to ADAT (or Analog if the ADAT Bridge is not your primary audio interface).
Setup D: Configuring Pro Tools and ADAT sync with a Digital TimePiece The following example uses a Mark of the Unicorn Digital TimePiece. This device has the ability to translate the ADAT-proprietary time reference signal embedded on ADAT tapes into MIDI Time Code. This enables you to synchronize the ADAT and Pro Tools with near sample accuracy. The Digital TimePiece allows you to either control the Pro Tools transport via the ADAT, or control the ADAT’s transport via Pro Tools.
10 In the Pro Tools Session Setup window, choose the sample rate that matches the material on the ADAT(s). 11 In the Pro Tools Session Setup window, check and enable the MTC to Port button, then select the Digital TimePiece’s OMS port in the pop-up that appears below this button. tion. To do this, choose Preferences from the Pro Tools Setups menu. Click the Operation button and enable the desired mode at the bottom of this dialog.
7 Use the Output Selector of each Pro Tools track to assign its output. • If you are using an ADAT Bridge I/O as your master Pro Tools interface, Pro Tools channel 1-8 outputs correspond to Group A optical outputs (1-8) and channel outputs 9-16 correspond to Group B optical outputs (9-16). • If your ADAT Bridge I/O is not your master Pro Tools interface, you must use the output selector to choose the inputs for each destination track according to how your Audio Interfaces are ordered.
Using the ADAT Bridge I/O in Stand-Alone Mode The Studio 64XTC Edit Programs window 5 Select Store Current Program in the Stu- dio 64XTC menu to save the settings. In Pro Tools: 6 In the Peripherals/Synchronization win- dow select “Generic Device” in Synchronization and “Studio 64 XTC” for Port. 7 At the top of the Peripherals dialog, click the Machine Control button to open the Machine Control Peripherals window.
I/O’s AES/EBU, S/PDIF, and optical ports will also match the sample rate of the incoming data. 6 Set the ADAT, or ADAT-compatible de- vice to digital sync and digital input. (If you own an Alesis M20, set it to Optical sync.) 7 Record enable the ADAT tracks to which you want to record. The ADAT Bridge I/O multiplexes the digital audio to all 16 optical channels.
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appendix a ADAT Bridge I/O Technical Specifications Analog performance Connectors Audio Output Analog Output Actively balanced (unbalanced operation also supported) Two 1/4” TRS connectors, tip “+”, ring “-“ S/PDIF In Signal-to-Noise Ratio 99 dB A-weighted 97 dB unweighted, 22 Hz - 22 kHz bandwidth THD + N <.002%, 0 dBFS@1 kHz, 22 Hz - 22 kHz bandwidth Level 0 to .5 V (low), 2.0 to 6.0 V (high) Connector Gold-plated coaxial RCA jack S/PDIF Out Level TTL (3.
Slave Clock In Miscellaneous Level 0 to .5 V (low), 2.0 to 6.0 V (high) Digital I/O Resolution Connector BNC Female 24 bit Frequency 256x word clock Optical Resolution Slave Clock Out Level TTL (3.3 V typical) 16 - 20 bit Connector BNC Female Sample Rates Frequency 256x word clock 44.
Physical Specifications Height:1RU/1.75" (4.45 cm) Width:19.0" (48.26 cm) Depth:10.5" (26.67 cm) Operating Temperature 32 to 131 degrees F (0 to 55 degrees C) Storage Temperature -40 to 176 degrees F (-40 to 80 degrees C) Power Requirements Relative Humidity Voltage 0 to 95%, non-condensing 85 to 264 VAC Weight Frequency 4.4 lbs (2.4 kg) 47 to 63 Hz, autoswitching Vibration Resistance Wattage 5 W Typical, 30 W max +5V:2.66 W +15V:1.32 W -15V:0.
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index Symbols +4 dBu 29 Numerics -10 dBV 29 1-8 10 60-pin to 50-pin interface cable 5 64XTC configuring 49 setup diagram 22 8- and 16-channel modes 7 9-16 10 9-16 (channels, Group B) 7 9-pin sync 12 A ABS 19 AC power cable 5 AC Power Input 11 ADAT blackface firmware 3 internal clock 25 M-20 firmware 3 model LX20 firmware 3 original firmware 3 recommended firmware 3 XT firmware 3 XT20 firmware 3 ADAT Bridge I/O 1, 5 connecting 5 ADAT Optical 28 when it is and is not available 29 ADAT optical 28 cables 5 A
DAT 28 DataSync2 42, 44 DataSync2) 43 Device pop-up 36 DigiSerial Port 18 DigiSetup 26 Digital 8, 28, 33 Digital Format 9, 27 digital input 1 digital inputs 33 Digital Mixing Console 23 Digital TimePiece 47 E external sync, losing 37 F firmware 3 ADAT 3 Freemidi configuring for a BRC 41 configuring for the MTP AV 45 Front Panel 7 L laser 12 LEDs Group A/B 7 lightpipe 2 LTC source for MTP AV 41 M M20 28 Master 37 master ADAT 12 master clock device 37 master clock reference 36 MDMs 1 MIDI Device Info 35 M
P U Playback Engine 26, 28 polarity 31 pops 17 pops/clicks 6 Port 5 49 power cable 5 Power Switch 7 power up 25 Pro Tools configuring 26 Universal Slave Driver and BRC 18 Use Apple Serial DMA 36 User’s Guide 2 W Windows and sync 34 Word Clock Out 11 R Record Online at Insertion/Selection 39 Record Online at Time Code (or Adat) Lock 39 recording, unsynchronized 30 S S/PDIF In/Out 10 Sample Rate 9, 27 Serial DMA 36 Session Setup 42 slave clock cable 5 Slave Clock In/Out 11 slot 13 SMPTE frame rate 43 SM
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