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1. Reference Loop ADA4 Normal Mode Block Diagram Jumper 2 Installed A D or D A AJA VIDEO SYSTEMS AES EBU Ch 1 2 In AES EBU Ch 1 2 Out Input A Output A 9 S n a n a Input B Output B AES EBU Ch 3 4 In o AES EBU Ch 3 4 Out Input C Output C n a 2 9 n a Input D Output D Reference Loop AES 11 Out Reference Loop ADA4 Synchronizer Mode Block Diagram Jumper 2 Removed DID AJA ADA4 4 Ch Bi directional Audio A D and D A Converter User Manual I O Connections os I O Connections eee p pa Audio I O D connector attaches to supplied cable Sync Input Passive Loop BNCs Configuration Determined by ve DIP switch on Se OSONA ADAS CONVERTER other side of AES EBU Sync Output t pomy CHANNEL seu NO Gaede BNC 5 to 18VDC Power Input Cable Not Shown To Scale ADA4 and Cable Side View 6 VIDEO SYSTEMS User Controls Normal Mode Jumper 2 Installed The user interface for the ADA4 is a 4 switch DIP pip switen setting accessible through a cut out in the bottom of the LEFT RIGHT unit and an internal 3 position jumper block accessed by removing the ADA4 cover secured by 4 screws Use the jumper to configure the mode of operation Normal or Synchronizer Then use the DIP switches if necessary to configure channels and audio levels MODEL ADA4 The exact
2. NE AJA VIDEO SYSTEMS Meaning 1 Example Jumper 1 installed 48kHz Any AES outputs and the AES 11 96kHz output mode selected reference output are running in 48kHz mode Jumper 1 O jumper effectively removed p O Jumper 1 removed 96kHz Any AES outputs and the AES 11 reference output are running in 96kHz mode Meaning 2 Example Jumper 2 installed Normal Mode Switches 1 and 2 Normal mode selected independantly define A D or D A mode for their mper 2 respective pair of channels Switches 3 and 4 are sumpe used together to define the audio level Jumper 2 removed Synchronizer Mode Switches 1 4 have no effect The ADA4 is in D D mode with the output re timed to the reference signal when applied Without a reference signal applied the ADA4 re clocks the output based on its stable free running local oscillator Meaning 3 Note n a Jumper 3 is not used Jumper 3 is not used but is provided as Jumper 3 GREE ADA4 Internal Jumper Settings Jumper 3 Jumper 3 is currently unused Lock LED An LED is located next to the BNC connectors which shows the type of signal locked if any Here are the meanings of the LED colors e Red HD lock e Green SD lock e Amber AES 11 lock or Word Clock lock Installation Typically ADA4 installation consists of the following 1 disconnect 5VDC from the converter 2 configure the DIP switch for the desi
3. directional Audio A D and D A Converter User Manual Introduction Introduction The ADA4 is a 4 channel converter which can be configured as a 4 channel A D a 4 channel D A or 2 channel A D and 2 channel D A The ADA4 can accept a AES11 wordclock or video sync color black reference input for synchronization Reference input and synchronization is automatic Audio levels are configurable via dipswitch control Features e Simultaneous A D and D A or AES Synchronizer e Full time AES11 low jitter reference output e Up to 4 channels of balanced analog to AES EBU audio e Up to 4 channels of AES EBU to balanced analog audio e Supplied XLR breakout cable e AES11 Wordclock Tri level Sync Color Black Reference Loop e Adjustable Audio Levels e Sample Rate Conversion Between 96KHz and 48KHz e Dipswitch configuration e 5 18 VDC Power Block Diagrams Analog Audio Ch 1 or ee Analog Audio Ch 1 or AES EBU Ch 1 2 In Audio i AES EBU Ch 1 2 Out AID Input A Dipswitch 1 Output A Analog Audio Ch 2 In Audio o Analog Audio Ch 2 Out D A Input B Output B Analog Audio Ch 3 or o Analog Audio Ch 3 or AES EBU Ch 3 4 In Audio AES EBU Ch 3 4 Out AID Input C Dipswitch 2 Output C Analog Audio Ch 4 In Audio o Analog Audio Ch 4 Out D A Input D Output D Reference Loop AES 11 Out
4. function of the jumper settings and each AA DIP switch are described on the following pages USA Factory default switch settings are all in the Tel 530 274 2048 leftmost position www aja com CH1 2 D A CH3 4 D A LEVELI LEVEL2 1 Normal mode is the default operating mode of the ADA4 as shipped from the factory In Normal mode the ADA4 performs A D or D A audio conversion as configured by the 4 DIP switches In the factory Normal configuration the internal jumper 2 is installed and no jumper changes are required DIP switch settings are discussed below Switch 1 CH1 2 A D or D A Select type of conversion for channels 1 and 2 LEFT RIGHT Select Analog to Digital Select Digital to Analog Conversion Conversion Switch 2 CH3 4 A D or D A Select type of conversion for channels 3 and 4 LEFT RIGHT Select Analog to Digital Select Digital to Analog Conversion Conversion AJA ADA4 4 Ch Bi directional Audio A D and D A Converter User Manual User Controls Switches 3 and 4 LEVEL Controls audio levels see matrix below Note Professional audio equipment has much higher levels than consumer equipment a 0 VU reading corresponds to 4 dBu Connecting a professional 4 dBu device to a consumer audio input 10dBV 7 8 dBu may cause overloading whereas the output of a consumer device probably does not have sufficient power to drive a professional audio input With consumer and semi professional audio equipmen
5. ADA4 4 Channel Bi directional Audio A D and D A Converter User Manual regu SYNC gt AE er ADAH CONVERTER ANNEL AES EBY ses y CH POWER ae ave AJA VIDEO SYSTEMS October 30 2008 P N 101662 01 For ADA4 Serial Number H43000 or Later AA VIDEO SYSTEMS Hace marke gt AJA KONA and XENA are registered trademarks of AJA Video Inc lo HD and Io are trademarks of AJA Video Inc All other trademarks are the property of their respective holders Copyright O 2008 AJA Video Inc All rights reserved All information in this manual is subject to change without notice No part of the document may be reproduced or transmitted in any form or by any means electronic or mechanical including photocopying or recording without the express written permission of AJA Inc FCC Emission Information 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 when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be r
6. Y ef D 09 or an TT 3 o o gt 06 0 TT a IL D a o O a indu f MOIA PIS MOIA PU y uid z uid AJA N ADA4 Cable
7. equired to correct the interference at his own expense Changes or modifications not expressly approved by AJA Video can effect emission compliance and could void the user s authority to operate this equipment To contact AJA Video for sales or support use any of the following methods 443 Crown Point Circle Grass Valley CA 95945 USA Telephone 1 800 251 4224 or 1 530 274 2048 Fax 1 530 274 9442 Web http www aja com Support Email support aja com Sales Email sales aja com When calling for support have all information on the product serial number etc at hand prior to calling Limited Warranty AJA Video warrants that this product will be free from defects in materials and workmanship for a period of five years from the date of purchase If a product proves to be defective during this warranty period AJA Video at its option will either repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty you the Customer must notify AJA Video of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service The Customer shall be responsible for packaging and shipping the defective product to a designated service center nominated by AJA Video with shipping charges prepaid AJA Video shall pay for the return of the product to the Customer if the shipment i
8. red equipment configuration 3 connect video equipment to the converter BNCs 4 apply 5VDC power to the converter AJA power supply model DWP AJA ADA4 4 Ch Bi directional Audio A D and D A Converter User Manual Specifications 9 Specifications Analog Audio I O Balanced XLR One Channel per XLR connector AES Audio I O Balanced 110 ohm XLR Two Channels per XLR connector Analog Audio Levels with Respect 24dBu SMPTE RP155 18dBu EBU R68 to Full Scale Digital 15dBu aaa ae a 12 o dBu Audio Converters 24 bit 48 96 KHz User Controls External Dipswitch Channel 1 2 A D D A Channel 3 4 A D D A Audio Level 1 Audio Level 2 Reference Loop 75 Ohm unterminated HD SD Sync AES 11 or Wordclock 48 96 KHz y UD Bojeuy q do p UD SAV JO YD Bojeuy 9 do Z UD Bojeuy g mdmo Z L UD SAV JO UD Bojeuy y indino y UD Bojeuy q ndul p UD SAV JO YD Bojeuy 9 indu iid mr Z UD Bojeuy g indu r AED IL L UD SAV JO UD Bojeuy y indu ie o yvav X9pU QUUEUD NIN
9. s to a location within the country in which the AJA Video service center is located Customer shall be responsible for paying all shipping charges insurance duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care AJA Video shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than AJA Video representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non AJA Video parts or supplies or d to service a product that has been modified or integrated with other products when the effect of such a modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY AJA VIDEO IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED AJA VIDEO AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AJA VIDEO S RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE WHOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER AJA VIDEO OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES AJA ADA4 4 Ch Bi
10. t a VU reading of 0 dB is typically referenced to 10 dBV 0 dBu 0 775 VRMS Output Level Selection Matrix For Switches 3 and 4 The following table shows the combinations of DIP switch settings required to configure the audio output levels shown DIP Switch 4 DIP Switch 3 LEVEL 2 LEVEL 1 Output Level Pro USA OdBFS 24dBu Pro Europe OdBFS gt 18dBu Consumer OdBFS 12dBu Cet 48 KHz 96KHz Jumper 1 selects how the AES outputs and the AES11 reference output run If Jumper 1 is Output Mode installed they run in 48 KHz mode If Jumper 1 is removed they run in 96 KHz mode Jumper 1 Synchronizer Synchronizer mode is an alternative operating mode where no audio A D or D A conversion Mode takes place Instead it allows for an AES input to be sample rate converted and reclocked to Jumper 2 reveal an AES output that is low jitter and when a reference signal is applied locked to Removed reference In this mode the DIP switches are ignored and all configuration options are set via a 3 position jumper located inside the ADA4 case To access this jumper remove the four phillips screws securing back side of the ADA4 case the side having the DIP switch access hole in it Once the case cover is removed you can easily identify the jumper by its appearance Jumper positions 1 through 3 are clearly marked on the circuit board next to the jumper Refer to the following diagram for jumper settings and their meaning

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