DUA II Audio Interface User Manual Version: DOC-1.
ii DUA II User Manual © 2001 Merging Technologies
Table of Contents IMPORTANT NOTICE:............................................................................................................................................IV STATIC DANGER NOTICE: ...................................................................................................................................IV INFORMATION FOR THE USER: .........................................................................................................................IV CONTACTING MERGING .........
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.
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.
vi DUA II User Manual © 2001 Merging Technologies
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 for supporting 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.
Chapter 2 – The Front Panel dua II SYNCHRONIZATION REMOTE POWER INT ODI AES MONITOR SAMPLE RATE 32 WCLK Synchronization Selection & Status MONITOR OUTPUTS AUDIO INTERFACE 44.
• 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.
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.
Chapter 3 – The Back Panel LINE INPUTS LINE OUTPUTS AES/EBU INPUTS AES/EBU OUTPUTS AES-WCK Merging Technologies Le Verney CH 1604 Puidoux Switzerland S/N : ODI CH 1 CH 3 CH 2 CH 4 CH 1 Analog line Inputs 1-4 CH 2 CH 3 CH 4 Analog line Outputs 1-4 CH 5/6 AES-EBU Inputs 1-4 CH 7/8 CH 5/6 AES-EBU Outputs 1-4 CH 7/8 REF IN AES-EBU/WCLK Reference Input IN OUT 100-250 VAC / 50-60 Hz ADAT ODI I/O Power Supply Analog Line Inputs 1-4 LINE INPUTS CH 1 CH 2 CH 3 CH 4 Any professiona
AES/EBU Inputs 5-8 AES/EBU INPUTS CH 5/6 CH 7/8 Any professional level balanced digital AES/EBU audio output sources at 32, 44.1 or 48 KHz can be connected to the AES/EBU inputs of the DUA II. The AES/EBU inputs 5-8 are routed to the ADAT output channels 5-8. AES/EBU Outputs 5-8 AES/EBU OUTPUTS CH 5/6 CH 7/8 Any professional level balanced digital AES/EBU audio inputs at 32, 44.1 or 48 KHz can be connected to the AES/EBU outputs of the DUA II.
ODI (Optical Digital Interface) ODI IN OUT ODI IN This EIAJ optical connector receives channels 1-8 of any ADAT compatible output. ODI OUT This EIAJ optical connector transmits channels 1-8 to any ADAT compatible input. Power Connector 100-250 VAC / 50-60 Hz DUA II uses universal power supply that accepts AC from 100 to 250 volts. It is designed for being connected to an outlet that includes three pins (center pin to ground).
Chapter 4 – DIP Switch Settings The DUA II contains a DIP switch which provides some extended configuration capabilities. The DIP switch is accessible on the right side of the DUA II (looking from the front panel).
Chapter 5 – Typical Audio Connections This section will display some typical audio connection scenarios for DUA II. SOFTIMAGE®|DS 3.0 with SONY Digital BetaCam Users This example is based on Digital Studio users who are using the DUA II in conjunction with the Merging Mykerinos boards and a Digital Betacam video deck. Video Ref.
SOFTIMAGE®|DS 3.0 with SONY Analog BetaCam Users This example is based on Digital Studio users who are using the DUA II in conjunction with the Merging Mykerinos boards and an Analog BetaCam video deck. SONY Analog Betacam Video Deck Video Ref.
Merging®|Pyramix 3.0 Workstation with Surround Monitoring Users This example is based on a typical Pyramix analog/digital audio studio with both types of devices and a surround monitoring system. MERGING Pyramix 3.0 Computer MYKERINOS Card DAT/ Effect CD Player AES-EBU OUTPUTS AES-EBU INPUTS ADAT ODI I/O S W R C L ANALOG OUTPUTS MERGING DUA II Audio Interface Mixer / Mic. Preamp. ANALOG INPUTS Monitor Outputs S L S R This example uses the following: • • • • • • • • Mic.Preamp.
Stand Alone A/D and D/A Setup This example is based on a stand-alone audio converter application. This configuration allows having 4 ANALOG-to-AES/EBU and 4 AES/EBU-to-ANALOG converters.
Appendix 1 – Technical Specifications Parameter Dimensions Weight Power Consumption Internal Sampling Frequency Accuracy Internal Sampling Frequency Accuracy Internal Sampling Frequency Jitter Conditions 19" 1U height 25° Celsius 0° to 50° Celsius Measured on ODI output Value W = 485 D = 250 H =43 1 10 +/- 5 +/- 25 <2 Unit mm Kg VA PPM PPM ns p-p Analog Line Inputs Parameter Resolution Max. Sample Rate Min. FS Input Level Max.
Appendix 2 – Flow Chart Diagrams DUA II Synchronization Flow Chart ADAT Sync Extractor INT AES-EBU Sync Extractor WCLK AES-EBU DUA II Central Time Base WCLK Sync Extractor AES-EBU REF.
Appendix 3 – Upgrading the DUA II Firmware All registered DUA II users will be contacted by Merging in the event of a DUA II firmware upgrade. This upgrade can be performed easily in the field. If you are unsure on how to perform this procedure, please contact Merging. • • • • • • • Disconnect the power supply cable, Remove the top cover, Locate the Flash ROM chip (It is labeled with a sticker “V 1.0”.
When using the DUA II as a stand-alone unit, how do you route audio through the unit? Can you do it without patching the ADAT INs and OUTs together? When using the DUA II as a stand-alone unit, the DIP Switch 7 should be set to enable the STAND ALONE mode. This way all inputs are routed internally one-to-one to the outputs. There is no need for an ADAT external loop.
