Merging DUA II Bedienungsanleitung

DUA II

Audio Interface

User Manual

Version: DOC-1.0 (March 20, 2000)

Table of Contents

IMPORTANT NOTICE:............................................................................................................................................IV

STATIC DANGER NOTICE: ...................................................................................................................................IV

INFORMATION FOR THE USER: .........................................................................................................................IV

CONTACTING MERGING ......................................................................................................................................IV

DUA II WARRANTY INFORMATION ................................................................................................................... V

CHAPTER 1 – INTRODUCTION .............................................................................................................................. 1

CHAPTER 2 – THE FRONT PANEL ........................................................................................................................ 2

SYNCHRONIZATION SELECTOR AND STATUS ............................................................................................................... 2

SAMPLE RATE SELECTOR............................................................................................................................................. 3

MONITORING SELECTOR .............................................................................................................................................. 3

MONITORING OUTPUTS................................................................................................................................................ 4

POWER SWITCH & REMOTE INDICATOR....................................................................................................................... 4

CHAPTER 3 – THE BACK PANEL........................................................................................................................... 5

ANALOG LINE INPUTS 1-4............................................................................................................................................ 5

ANALOG LINE OUTPUTS 1-4 ........................................................................................................................................ 5

AES/EBU INPUTS 5-8 ................................................................................................................................................. 6

AES/EBU OUTPUTS 5-8.............................................................................................................................................. 6

AES/EBU / WORD-CLOCK REFERENCE INPUT............................................................................................................ 6

ODI (OPTICAL DIGITAL INTERFACE)........................................................................................................................... 7

POWER CONNECTOR .................................................................................................................................................... 7

CHAPTER 4 – DIP SWITCH SETTINGS ................................................................................................................. 8

CHAPTER 5 – TYPICAL AUDIO CONNECTIONS ............................................................................................... 9

SOFTIMAGE®|DS WITH SONY DIGITAL BETACAM USERS ..................................................................................... 9

SOFTIMAGE®|DS WITH SONY ANALOG BETACAM USERS .................................................................................. 10

PYRAMIX WORKSTATION WITH SURROUND MONITORING USERS ............................................................................. 11

STAND ALONE A/D AND D/A SETUP ......................................................................................................................... 12

APPENDIX 1 – TECHNICAL SPECIFICATIONS ................................................................................................ 13

ANALOG LINE INPUTS................................................................................................................................................ 13

ANALOG LINE OUTPUTS ............................................................................................................................................ 13

AES/EBU INPUTS ..................................................................................................................................................... 13

AES/EBU OUTPUTS .................................................................................................................................................. 13

APPENDIX 2 – FLOW CHART DIAGRAMS ........................................................................................................ 14

DUA II AUDIO FLOW CHART .................................................................................................................................... 14

DUA II SYNCHRONIZATION FLOW CHART ................................................................................................................ 14

APPENDIX 3 - UPGRADING THE DUA II FIRMWARE .................................................................................... 15

APPENDIX 4 – TROUBLESHOOTING / FAQ ...................................................................................................... 15

APPENDIX 5 – GLOSSARY OF TERMS ............................................................................................................... 16

IMPORTANT NOTICE:

Please read the following information very carefully before attempting any installation. Failure to comply with

the precise instructions may result in damage to your Merging hardware. Please read this entire section of the

manual carefully before installation.

STATIC DANGER NOTICE:

Please note that the DUA II Audio Interface contains delicate electronic components that can be damaged or

even destroyed when exposed to static electricity. Please take all of the necessary precautions when handling

the DUA II with the cover removed. This notice also applies when performing a Firmware Upgrade. Take all

necessary precautions not to discharge static electricity when touching any of the DUA II Internals.

INFORMATION FOR THE USER:

This device complies with part 15 of FCC rules. Operation is subject to the following two conditions: (1) This device

may not cause harmful interference, and (2) This device must accept any interference received, including interference

that may cause undesired operation.

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. These limits are designed to provide reasonable protection against harmful interference in a

residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions contained in this manual, may cause harmful interference to radio and

television communications. However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio and television reception, which can be determined by

turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the

following measures:

• Reorient or relocate the receiving antenna

• Increase the separation between the equipment and the receiver

• Connect the equipment into an outlet on a circuit different from that of the receiver

• Consult the dealer or an experienced audio television technician

NOTE: Connecting this device to peripheral devices that do not comply with CLASS A requirements or using an

unshielded peripheral data cable could also result in harmful interference to radio or television reception. The user is

cautioned that any changes or modifications not expressly approved by the party responsible for compliance could

void the user’s authority to operate this equipment. To ensure that the use of this product does not contribute to

interference, it is necessary to use shielded I/O cables.

EMC:

The DUA II complies with the following specifications:

CENELEC EN 55103-1

CENELEC EN 55103-2 (E4 Environment)

Contacting Merging

For all general or sales inquiries:

In Europe, contact our Swiss Office:

Tel: +41-21-946 0444 or Fax +41-21-946 0445

In the U.S., contact our Illinois Office:

Tel: +1-847-272-0500 or Fax: +1-847- 272-0597

All documentation inquiries, bug reports or suggestions for improvement can be directed to: info@merging.com

DUA II Warranty Information

This product is warranted to be free of defects in materials and workmanship for a period of one year from the date of

purchase. This Limited Warranty is extended by Merging Technologies, Inc. to the original purchaser.

In the event of a defect or failure to confirm to this Limited warranty, Merging Technologies, Inc. will repair or

replace the product without charge within sixty (60) days. In order to make a claim under this limited warranty; the

purchaser must notify Merging Technologies, Inc. or their representative in writing, of the product failure. In this

limited warranty the customer must upon Merging Technologies, Inc. request, return the product to the place of

purchase, or other local designation, for the necessary repairs to be performed. If the consumer is not satisfied with

the repair, Merging Technologies, Inc. will have the option to either attempt a further repair, or refund the purchase

price.

This warranty does not cover: (1) Products which have been subject to misuse, abuse, accident, physical damage,

neglect, exposure to fire, water or excessive changes in the climate or temperature, or operation outside maximum

rating. (2) Products on which warranty stickers or product serial numbers have been removed, altered or rendered

illegible. (3) The cost of installations, removal or reinstallation. (4) Damages caused to any other products.

Chapter 1 – Introduction

Congratulations on your DUA II purchase. The DUA II is the smartest audio interface solution for Pyramix users,

SOFTIMAGE®|DS users and audio professionals, designed to support a surround monitoring system.

Features include:

• In a single unit, using industry standard audio connections:

4 CH analog line inputs,

4 CH analog line outputs,

2 CH analog line outputs + headphones connector for monitoring,

4 CH AES/EBU inputs,

4 CH AES/EBU outputs.

• The signals from the inputs are also fed to the optical lightpipes in ADAT compatible format. This allows a direct

connection to ADAT compatible multitrack devices and other devices such as digital consoles. These optical

lightpipe connectors support up to 8 channels of 24 bit digital audio on one single optical fiber with no risk at all

of line hum or any other electromagnetic interference.

• Rugged internal power supply. This unit accepts both 110 and 220 voltages for worldwide use.

• All audio connections are made using high quality balanced XLR type connectors.

• Clear and easy to use front panel controls.

• High quality 24 bit A/D and D/A using the latest generation in converter technology.

• High common mode rejection balanced input circuitry on all analog input for optimum rejection of power line

hum, RF interference, voltage drops and other externally generated noise commonly encountered with long audio

cable runs.

• All analog balanced output circuitry incorporates the advanced "Twin Servo Drive" output stage for maximum

output signal balance ratio performance, even under adverse asymmetrical loads.

• Fits into standard 1 unit 19” rack.

• Local control from the front panel (in stand-alone mode).

• Remote control from Pyramix Virtual Studio software.

• Selectable stereo monitoring of all 8 inputs and outputs.

• Very comprehensive choice of synchronization sources.

• Very low jitter and calibrated internal clock.

• Fully tested for CE compliance for guaranteed safety and stability.

Chapter 2 – The Front Panel

MONITOR OUTPUTS

LEFT RIGHT PHONES VOLUME

MONITOR

SAMPLE RATE

7/85/6

3/4

1/2

32 44.1 48

REMOTE

POWER

dua II AUDIO INTERFACE

SYNCHRONIZATION

INT ODI AES WCL

Synchronization

Selection & Status

Sample Rate

Selection & Status

Monitoring

Selection & Status

Monitoring

Line Output

Monitoring

Phones Output

Monitoring

Volume Control

Synchronization Selector and Status

SYNCHRONIZATION

INT ODI AES WCL

The DUA II can operate in many different synchronization modes. It can synchronize to its internal clock or to a wide

range of industry standard external sources. Pressing the SYNCHRONIZATION button allows the selection of the

desired synchronization mode.

Possible Synchronization modes

• INT: DUA II synchronizes and locks to its internal clock.

• ODI: (Default) DUA II synchronizes to the optical input (ADAT). If no valid sync signal is present at the optical

input (when the ODI mode is selected), the ODI LED will light on RED. Once a valid sync signal has been

detected, the ODI LED will light on GREEN. If the sample rate of the DUA II and the ADAT signal are

identical, the selected sample rate LED will light on GREEN. The DUA II is now locked and synchronized to the

incoming ADAT signal.

• AES: DUA II synchronizes to an AES/EBU signal.

There are 4 AES/EBU sync modes. You can see which mode is selected by pressing the SYNCHRONIZATION

button for more than 1 second. The mode is then displayed in GREEN on RED background on the monitor LEDs

as follow:

MON LED AES/EBU sync mode

MON 1/2 AUTO DETECT

MON 3/4 AES/EBU Ref. Input

MON 5/6 AES/EBU 5/6 Input

MON 7/8 AES/EBU 7/8 Input

While in AUTO mode, the DUA II automatically detects and switches to a valid AES/EBU sync source.

In this mode, the LED MON 1/2 is light on GREEN, indicating the AUTO mode, and the automatically selected

input is indicated on the other MON LEDS in GREEN as well.

Press the MONITOR button to change the AES/EBU sync source mode.

Press the SYNCHRONIZATION button to save changes and return to the normal operation mode.

If no valid sync signal is present at the selected AES/EBU input (when the AES mode is selected), the AES LED

will light on RED. Once a valid AES sync signal has been detected, the AES LED will light on GREEN. If the

sample rate of the DUA II and the AES signal are identical, the selected sample rate LED will light on GREEN.

The DUA II is now locked and synchronized to the incoming AES signal.

• WCLK: DUA II synchronizes to a Word-Clock signal (TTL or CMOS level square wave at the sample rate

selected on the front panel). If no valid sync signal is present at the Word-Clock input (when the WCLK mode is

selected), the WCLK LED will light on RED. Once a valid sync signal has been detected, the WCLK LED will

light on GREEN. If the sample rate of the DUA II and the Word-Clock signal are identical, the selected sample

rate LED will light on GREEN. The DUA II is now locked and synchronized to the incoming Word-Clock

signal.

Sample Rate Selector

SAMPLE RATE

32 44.1 48

DUA II supports 3 sample rates: 32 KHz , 44.1 KHz and 48 KHz.

The desired sample rate is selected by pressing the SAMPLE RATE button.

The sample rate is displayed in GREEN if DUA II is in internal or locked on the selected synchronization source.

The sample rate is displayed in RED if DUA II cannot lock on the selected synchronization source.

AutoDetect SR mode

By pressing the SAMPLE RATE button for 1 second, you enable the AutoDetect mode for the sample rate selection.

In this mode, the DUA II detects automatically the sample rate of the selected synchronization source.

While scanning the different sample rates, all 3 SR LEDs are light on RED.

When DUA II has found the sample rate of the selected synchronization source and is locked on it, the detected

sample rate LED light on GREEN.

When in sync mode INT:

In Normal ADAT mode, the DUA II selects the sample rate based on the ADAT signal returning from the device

connected and locked on DUA II.

In Stand Alone mode, the DUA II selects the sample rate based on the AES/EBU signal returning from the device

connected and locked on DUA II.

Monitoring Selector

MONITOR

7/85/6

3/4

1/2

This section allows for the Selection of any of the 8 input or output audio signals in pairs. The desired monitoring

source is selected by pressing the MONITOR button.

The monitoring source selected is displayed in RED for inputs (RECORD), or GREEN for outputs (PLAYBACK).

Monitoring Outputs

MONITOR OUTPUTS

LEFT RIGHT PHONES VOLUME

Any professional level balanced audio input can be connected to the analog line monitor outputs of the DUA II.

4 output levels are selectable from consumer level (–10 dBV) up to professional level (+4 dBu).

See chapter 4 on how to configure the Analog Outputs Level.

The monitor outputs are also available on a stereo ¼ inch Jack connector with the volume control for a headphone.

Note: The volume control only impacts on the headphone monitoring, not on the XLR line outputs.

Power Switch & Remote indicator

REMOTE

POWER

The POWER switch toggles the power source on and off.

The REMOTE LED type indicator indicates whether the DUA II unit is in remote or local control.

It displays also an error status:

- If the LED is not lit, the DUA II is ready in local control mode.

- If the LED is lit on GREEN, the DUA II is ready in remote control. In this mode, the DUA II front panel controls

are being controlled via a software application (such as the Merging Pyramix Workstation).

- If the LED is lit on RED, the DUA II is not ready. The LED lights on RED at power-up for less than 1 second.

If the LED still light on RED ~1 second after power up, it means that DUA II is not working properly.

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