Datasat DDR-16 AES67 Installation guide

DDR-16/32 AES67 Receiver/DAC
Installation and
Operating Guide
Version 0.91
Effective Date: January 2020
Document # 9301H85300
Amplifier Technologies Inc.
1749 Chapin Road, Montebello, CA 90640
USA

GENERAL SAFETY WARNINGS AND GUIDELINES
AVERTISSEMENTS ET DIRECTIVES GÉNÉRALES DE SÉCURITÉ
Please Read First
CAUTION: To reduce the risk of electrical shock, do not
remove the cover (or back). No user serviceable parts inside.
Refer servicing to qualified service personnel.
WARNING: To reduce the risk of fire or electric shock,
do not expose this appliance to rain or moisture.
ATTENTION: Pour réduire le risque de choc électrique, ne
retirez le couvercle (ou l'arrière). Aucune pièce réparable par
l'utilisateur à l'intérieur.
Confiez l'entretien à un technicien qualifié.
VERTISSEMENT: Pour réduire le risque d'incendie ou de
choc électrique,
n'exposez pas cet appareil à la pluie ou à l'humidité.
The lightning flash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electrical shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operation maintenance (servicing)
instructions in the literature accompanying the appliance.
Le flash avec pointe de flèche, dans un triangle équilatéral, est destiné à alerter l'utilisateur de la présence d'une "tension dangereuse" non
isolée dans l'enceinte du produit qui peut être d'une amplitude suffisante pour constituer un risque de choc électrique pour les personnes.
Le point d'exclamation dans un équilatéral triangle est destiné à alerter l'utilisateur de la présence d'une opération importante instructions
de maintenance (entretien) la documentation accompagnant l'appareil.
•This device is intended for indoor use only.
•Cet appareil est destiné à une utilisation en intérieur uniquement.
•Do not expose this device to water or moisture of any kind. Do not place drinks or other containers
with moisture on or near the device. If moisture does get in or on the device, immediately unplug it
from the power outlet and allow it to fully dry before reapplying power.
•N'exposez pas cet appareil à l'eau ou à l'humidité d'aucune sorte. Ne placez pas de boissons ou autres
récipients humides sur ou à proximité de l'appareil. Si de l'humidité pénètre dans ou sur l'appareil,
débranchez-le immédiatement de la prise de courant et laissez-le sécher complètement avant de
remettre l'appareil sous tension.
•Do not touch the device, the power cord, or any other connected cables with wet hands.
•Ne touchez pas l'appareil, le cordon d'alimentation ou tout autre câble connecté avec les mains
mouillées.
•Do not expose this device to excessively high temperatures. Do not place it in, on, or near heat
sources, such as a fireplace, stove, radiator, etc. Do not leave it in direct sunlight.
•N'exposez pas cet appareil à des températures excessivement élevées. Ne le placez pas dans, sur ou
près de sources de chaleur, comme un foyer, une cuisinière, un radiateur, etc. Ne le laissez pas en
plein soleil.
•This device ventilates excessive heat through the slots and openings in the case. Do not block or cover
these openings. Ensure that the device is in an open area where it can get sufficient airflow to keep
from overheating.

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•Cet appareil évacue une chaleur excessive à travers les fentes et les ouvertures du boîtier. Ne bloquez
pas et ne couvrez pas ces ouvertures. Assurez-vous que l'appareil est dans une zone ouverte où il peut
obtenir un flux d'air suffisant pour éviter la surchauffe.
•Do not place or install this device in an area where it can be exposed to excessive amounts of dust,
humidity, oil, smoke, or combustible vapors.
•Ne placez pas ou n'installez pas cet appareil dans une zone où il peut être exposé à des quantités
excessives de poussière, d'humidité, d'huile, de fumée ou de vapeurs combustibles.
•Prior to operation, check the unit and power cord for physical damage. Do not use if physical damage
has occurred.
•Avant utilisation, vérifiez que l'unité et le cordon d'alimentation ne sont pas endommagés
physiquement. Ne pas utiliser en cas de dommages physiques.
•CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE, REPLACE ONLY
WITH THE SAME TYPE AND RATING OF FUSE.
•ATTENTION: POUR UNE PROTECTION CONTINUE CONTRE LES RISQUES D'INCENDIE,
REMPLACER UNIQUEMENT PAR LE MÊME TYPE ET LA QUALITÉ DES FUSIBLES.
•This equipment is not suitable for use in locations where children are likely to be present.
•Cet équipement n'est pas adapté à une utilisation dans des endroits où des enfants sont susceptibles
d'être présents.
•Take care to prevent damage to the power cord. Do not allow it to become crimped, pinched, walked
on, or become tangled with other cords. Ensure that the power cord does not present a tripping hazard.
•Prenez soin de ne pas endommager le cordon d'alimentation. Ne le laissez pas se froncer, pincer,
marcher ou s'emmêler avec d'autres cordons. Assurez-vous que le cordon d'alimentation ne présente
pas de risque de trébuchement.
•Before plugging the unit into a power outlet, ensure that the outlet provides the same type and level of
power required by the device.
•Avant de brancher l'appareil dans une prise de courant, assurez-vous que la prise fournit le même type
et niveau d'alimentation requis par l'appareil.
•This device uses a grounded power cord and requires a ground connection for safe operation. Ensure
that the power source has a proper ground connection. Do not modify the plug or use a "cheater" plug
to bypass the ground connection.
•Cet appareil utilise un cordon d'alimentation mis à la terre et nécessite une connexion à la terre pour
un fonctionnement sûr. Assurez-vous que la source d'alimentation est correctement raccordée à la
terre. Ne modifiez pas la fiche et n'utilisez pas de fiche "tricheur" pour contourner la connexion à la
terre.
•Ensure that power is turned off and disconnected before making any electrical connections.
•Assurez-vous que l'alimentation est coupée et déconnectée avant de faire des connexions électriques.
•Do not plug this device into the switched output of a preamplifier or other audio component. Power
Amplifiers only: This amplifier requires higher current levels than these devices are designed to
handle.
•Ne branchez pas cet appareil sur la sortie commutée d'un préamplificateur ou autre composant audio.
Amplificateurs de puissance uniquement: cet amplificateur nécessite des niveaux de courant plus
élevés que ceux que ces appareils sont conçus pour gérer.
•Unplug this device from the power source when not in use.
•Débranchez cet appareil de la source d'alimentation lorsqu'il n'est pas utilisé.
•Never unplug the unit by pulling on the power cord. Always grasp the connector head or adapter body.
•Ne débranchez jamais l'appareil en tirant sur le cordon d'alimentation. Saisissez toujours la tête du
connecteur ou le corps de l'adaptateur.
•Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents, or detergents.
•Nettoyez uniquement avec un chiffon doux et sec. N'utilisez pas de nettoyants chimiques, de solvants
ou de détergents.
•This device has no user serviceable parts. Do not attempt to open, service, or modify this device.

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•Cet appareil ne contient aucune pièce réparable par l'utilisateur. N'essayez pas d'ouvrir, de réparer ou
de modifier cet appareil.

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Notices
This product contains software proprietary to Amplifier Technologies Inc. and protected by US and International
copyright law. Unauthorized reproduction or disclosure, in whole or in part, is strictly prohibited.
WARRANTY/LIMITATION OF LIABILITY
EXCEPT FOR THE LIMITED WARRANTY PROVIDED HEREIN, THIS PRODUCT IS PROVIDED "AS IS"
AND WITHOUT WARRANTY OF ANY KIND. AMPLIFIER TECHNOLOGIES INC. EXPRESSLY
DISCLAIMS ALL OTHER WARRANTIES, EXPRESS AND IMPLIED, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. AMPLIFIER TECHNOLOGIES INC. DOES NOT WARRANT THAT THIS PRODUCT WILL
MEET USER’S REQUIREMENTS, OR THAT THE OPERATION OF THIS PRODUCT WILL BE
UNINTERRUPTED OR ERROR-FREE, OR THAT DEFECTS IN THIS PRODUCT WILL BE CORRECTED.
UNDER NO CIRCUMSTANCES, INCLUDING NEGLIGENCE, SHALL AMPLIFIER TECHNOLOGIES INC,
OR ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS, BE LIABLE TO USER FOR ANY
INCIDENTAL, INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR
LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, AND
THE LIKE) ARISING OUT OF THE USE, MISUSE OR INABILITY TO USE THIS PRODUCT OR RELATED
DOCUMENTATION.
Copyright
DDR-16/32 AES67 Receiver/DAC Installation and Operating Guide, Version 0.91
© 2020 Amplifier Technologies Inc. All right reserved.
The content of this publication is subject to change without notice. Amplifier Technologies Inc. assumes no
obligation to notify you of any changes or updates. While Amplifier Technologies Inc. believes this publication is
accurate, due to ongoing improvements and revisions, Amplifier Technologies Inc. cannot guarantee the accuracy
of printed material, nor can it accept responsibility for errors or omissions. Amplifier Technologies Inc. may
periodically publish updates and revisions to this publication as it deems necessary.
Datasat Digital Entertainment is a wholly owned brand of Amplifier Technologies Inc.
All other trademarks are the properties of their respective owners.
Document No. 9301H85300
December 2020
Record of Changes
Manual Version /
Date Description
0.91 / January 2020 Preliminary version

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Regulatory Notices
EMI NOTICE
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
required to correct the interference at his own expense.
Canadian Department of Communications compliance statement:
This equipment does not exceed Class A limits per radio noise emissions for digital apparatus set out in
the Radio Interference Regulation of the Canadian Department of Communications. Operation in a
residential area may cause unacceptable interference to radio and TV reception requiring the owner or
operator to take whatever steps are necessary to correct the interference.
Avis de conformité aux normes du ministère des Communications du Canada:
Cet Equipment ne dépasse pas les limites de Classe A D'émission de bruits radioélectriques pour les
appareils numériques telles que perscrites par le Règlement sur le brouillage radioélectrique établi par le
ministère des Communications du Canada. L'exploitation faite en milieu résidentiel peut entrainer le
brouillage des réceptions radio et télévision, ce qui obligerait le propriétaire ou l'operateur a prendre les
dispositions nécessaires pour en éliminer les causes.
Limited Warranty
Datasat Digital Entertainment software is warranted against defects for a period of 90 days from the date
of the original purchase. DDR-16/32 hardware is warranted against defects in material and workmanship
for a period of one year from the date of the original purchase. This warranty includes parts and labor.
THIS WARRANTY EXCLUDES UNITS THAT HAVE BEEN MODIFIED, REPAIRED BY
UNAUTHORIZED PERSONNEL, OR DAMAGED BY ABUSE, IMPROPER OPERATION, DIRT,
MOISTURE OR STATIC ELECTRICITY. PROPER OPERATION OF THIS EQUIPMENT
REQUIRES THE USE OF A SURGE PROTECTOR. SUPPLYING POWER TO THE DDR-16/32
UNIT WITHOUT THE USE OF A PROPERLY FUNCTIONING SURGE PROTECTOR WILL VOID
THIS WARRANTY.
Using an uninterruptible power supply (UPS) is highly recommended.
Products being returned under warranty should be sent to Datasat Digital Entertainment freight prepaid
in the original or equivalent packaging. Please contact Datasat Digital Entertainment prior to shipping
any parts or merchandise to receive a Return Merchandise Authorization number. Datasat Digital
Entertainment’s shipping address is:
Datasat Digital Entertainment
Attn: RMA #
4596 Ish Drive #210
Simi Valley, CA 93063
U.S.A.

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Product Improvements and Upgrades
Datasat Digital Entertainment reserves the right to make changes and/or improvements to its products,
without notification and without incurring any obligation to incorporate such changes or improvements
in products previously sold or shipped.
To receive notification about upgrades or bulletins that may become available from time to time, please
complete the enclosed Warranty Card and mail or fax it to Datasat Digital Entertainment.
Contact Information
To contact Datasat Digital Entertainment’s Technical Support staff:
Telephone: [phone] or toll free in USA and Canada: 1(888) 428-2268
Customer Service: [email protected]
Technical Support: [email protected]
Thank you for choosing Datasat Digital Entertainment!
Software License Agreement
IMPORTANT: READ THIS SOFTWARE LICENSE ("LICENSE") CAREFULLY BEFORE
USING THE DATASAT DIGITAL ENTERTAINMENT SOFTWARE. THE SOFTWARE
RESIDING ON THE DDR-16/32 AES67 RECEIVER/DAC AND ANY ACCOMPANYING
MATERIALS (COLLECTIVELY, THE “SOFTWARE”) ARE LICENSED, NOT SOLD. BY
USING THE DDR-16/32 AES67 RECEIVER/DAC, YOU ARE ACCEPTING AND AGREEING
TO THE TERMS OF THIS LICENSE. IF YOU DO NOT AGREE TO THE TERMS OF THIS
LICENSE, DO NOT USE THE DDR-16/32 AES67 RECEIVER/DAC.
1. Grant. Subject to your compliance with the terms of this License, Datasat Digital
Entertainment hereby grants you a non-exclusive, non-transferable, revocable, limited
license to use the Software solely for your internal business purposes and solely in
connection with the DDR-16/32 AES67 receiver/DAC. All rights not expressly granted to
you are reserved by Datasat Digital Entertainment.
2. Ownership. All right, title and interest in and to the Software, all physical copies thereof
and all intellectual property embodied therein are and shall remain vested in Datasat Digital
Entertainment. You do not own the Software, physical copies thereof or any intellectual
property embodied therein.
3. Restrictions. You may not (i) copy, distribute, sublicense, lease, transfer or use for
external purposes the Software; (ii) reverse engineer, decompile, disassemble, translate,
modify, attempt to reveal the source code of the Software, or (iii) create derivative works
from the Software.
4. Termination. Datasat Digital Entertainment may terminate this license at any time if you
violate the terms of this license. Upon termination, you must destroy the Software and
related documentation.
5. LIMITATION ON WARRANTY. YOU EXPRESSLY ACKNOWLEDGE AND AGREE THAT USE
OF DATASAT DIGITAL ENTERTAINMENT SOFTWARE AND HARDWARE IS AT YOUR SOLE
RISK. DATASAT DIGITAL ENTERTAINMENT DOES NOT WARRANT THAT THE OPERATION

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OF THE SOFTWARE OR THE HARDWARE WILL BE UNINTERRUPTED OR ERROR FREE. TO
THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE DATASAT DIGITAL
ENTERTAINMENT SOFTWARE AND HARDWARE PROVIDED “AS IS,” WITH ALL FAULTS
AND WITHOUT WARRANTY OF ANY KIND, INCLUDING, WITHOUT LIMITATION, THE
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSES,
AND NON-INFRINGEMENT OF THIRD PARTY RIGHTS, ALL OF WHICH ARE HEREBY
EXPRESSLY DISCLAIMED.
6. LIMITATION OF LIABILITY. UNDER NO CIRCUMSTANCES, INCLUDING, WITHOUT
LIMITATION, NEGLIGENCE, SHALL DATASAT DIGITAL ENTERTAINMENT OR ITS
DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR PERSONAL INJURY, OR
ANY INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHATSOEVER,
INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, LOSS OF DATA,
BUSINESS INTERRUPTION OR ANY OTHER COMMERCIAL DAMAGES OR LOSSES, ARISING
OUT OF OR RELATED TO YOUR USE OF THE DATASAT DIGITAL ENTERTAINMENT
SOFTWARE OR HARDWARE, HOWEVER CAUSED, REGARDLESS OF THE THEORY OF
LIABILITY AND EVEN IF DATASAT DIGITAL ENTERTAINMENT HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL DATASAT DIGITAL
ENTERTAINMENT’S LIABILITY EXCEED THE AMOUNT PAID TO DATASAT DIGITAL
ENTERTAINMENT. SOME STATES DO NOT ALLOW THE LIMITATION AND/OR EXCLUSION
OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
7. General. This License shall be governed by the laws of the State of California as applied to
contracts performed wholly therein. In any action brought by either party arising out of
this License, the prevailing party shall be entitled to recover its reasonable attorney’s fees
and costs. If any provision of this License is held by a court of competent jurisdiction to be
unenforceable or if a provision of this License is waived by either party, the remainder of
this License shall remain in full force and effect. You may not assign this License without
the prior, express written consent of Datasat Digital Entertainment.

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TABLEOFCONTENTS
INTRODUCTION 9
1.0 INSTALLATION 10
1.1 UNPACKING SYSTEM COMPONENTS 10
1.2 CHASSIS RACK MOUNTING AND CONNECTION 10
1.2.1 RACK MOUNT RECOMMENDATIONS 10
1.2.2 POWER SUPPLY 10
1.3 POWERING ON THE DDR-16/32 11
1.4 FRONT PANEL CONTROLS 11
1.5 REAR PANEL CONTROLS /CONNECTIONS 11
2.0 PRE-CONFIGURED SYSTEMS 12
2.1 EQ3-AOIP ANALOG OUTPUT CONFIGURATION 12
3.0 SYSTEMS NOT PRE-CONFIGURED 13
3.1 TROUBLESHOOTING TIPS 14
PART 2. APPENDICES
A. Connector Pin-outs
B. Specifications
C. AP25 AES67 Out Card (H790) Setup
Introduction
This manual explains the DDR-16/32 AES67 Receiver/DAC setup and operation. It contains full
instructions for installing hardware and software, setting up audio playback and configuring the system.
The DDR-16/32 AES67 Receiver/DAC converts up to 24 channels of AES67 audio formatted signal to
up to 32 channels of balanced analog audio output. Output connector wiring is in Tascam format. It can
accept input streaming at 48kHz for 24 channels.
The DDR-16/32 is available in two configurations:
16 Channel output DAC (DDR-16)
32 Channel output DAC (DDR-32).
For output, any combination of DDR-16/32 output channels may be selected, and can have crossovers
set.
The rear panel Ethernet: Status/Control connector provides access to status, control and setup functions
thru a computer, using an internet browser.
The DDR-16/32 is designed to work seamlessly with the Datasat AP25 Audio Processor when the
optional H790 AES67 output card is installed. The H790 card supports streaming of up to 16 channels at
96kHz, and 24 channels at 48kHz. The H790 card also provides additional output channel mapping over
the Ethernet connection (24 channels total) for use in Bi-amping / Tri-amping, or to add additional
speakers to existing input channels. Please see appendix C for more information on the H790 card.
To get the most out of your DDR-16/32, we suggest that you review this manual and keep it available
during system installation and initial operation.
The DDR-16/32 utilizes Momentum Data Systems (MDS) EQ3-AoIP (Audio over IP) technology.

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NOTE: Technical adjustments should only be performed by a qualified theater
technician. The appendices provide detailed information for the theater technician.
1.0 Installation
1.1 Unpacking System Components
The packaging is designed to handle normal shipping and handling. Upon receipt of shipment, check for
signs of damage before opening and report all damage to the carrier. All shipments made from Datasat
Digital Entertainment are customer responsibility once they leave our premises.
Before installation begins, we suggest that a complete inventory be taken to minimize problems or
questions during installation. Additionally, save all packing material until installation is complete in the
unlikely event that a component(s) requires return to the factory. Use the packing slip that came with
your unit to verify received inventory.
1.2 Chassis Rack Mounting and Connection
The DDR-16/32 chassis requires 2U of standard rack space for proper mounting.
Caution: Because power line surges can damage the DDR-16/32, we require the use of a
properly functioning computer-grade surge /spike suppressor. We also recommend using an
uninterruptible power supply (UPS).
Device Disconnect: The power outlet shall be installed near the equipment and shall be
easily accessible, in order to quickly disconnect power.
1. Install the DDR-16/32 into the audio rack, securing it properly with rack screws.
2. Connect the DDR-16/32 to other equipment (see appendix: A Connector Pinouts).
3. Connect the supplied power cable between the DDR-16/32 unit and the AC mains source.
1.2.1 Rack Mount Recommendations
Follow these recommendations if the DDR-16/32 unit will be installed in a closed or multi-unit rack
assembly.
Determine the maximum and ambient temperatures within the rack, since they may be greater
than the maximum and ambient temperatures in the room. The maximum temperature for the
equipment in a closed or multi-rack assembly is 40°C (104F°)
Ensure adequate airflow for cooling purposes on all sides of rack-mounted equipment.
Check nameplate ratings to ensure there is no overloading of supply circuits that could have
an effect on over-current protection and supply wiring.
Maintain reliable grounding of the equipment. Give particular attention to supply connections
when connecting to power strips, rather than direct connections to the branch circuit.
Using a properly functioning quality surge protector is required to protect the unit. Using an
uninterruptible power supply (UPS) is also recommended.
1.2.2 Power Supply
The DDR-16/32 power supply automatically switches itself to accommodate AC input between 110
VAC and 220 VAC.

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1.3 Powering ON the DDR-16/32
The main power switch for the DDR-16/32 is located on the rear panel. A “hard boot” (cycling the
power at the power entry module on the rear panel). When the main power switch is on, the DDR-16/32
can be switched in and out of standby power mode using the pushbutton power switch on the front panel.
1.4 Front Panel Controls
Figure 1: Front Panel Controls
The front panel contains the following controls:
1. Power button/indicator: Push button switch puts the DDR-16/32 in and out of standby power
mode.
2. ON and STANDBY LEDs: Upon switching the rear panel main power switch to On, the
orange Standby LED begins to blink, indicating system is booting. When booting has
successfully completed, orange LED goes solid. Pressing the front panel (Standby) Power
Button extinguishes the standby LED and the blue On LED will light. Pressing Power Button
once again returns the unit to the Standby state with orange LED on.
1.5 Rear Panel Controls / Connections
Figure 2. DDR-16/32 Rear Panel
Table 1 gives a description of each connector shown in the figure. For specific information on the pin-
outs of each connector, please see Appendix A of this manual.

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Table 1. DDR-16/32 Rear Panel Connections/Controls
ITEM DESCRIPTION
1 Power Entry Module/Power Switch
2 USB Audio – Not functional
3 AES67 In – RJ45F (connect to AES67 audio source). Cat-5e or better (Cat-6 preferred).
4 Service Port – DB9 RS232 (used for setup)
5a Ethernet: Status/Control – RJ45F (used for setup and control. Connect to computer)
5b USB: Software update – USB-A
6 Analog Audio Out (CH 1 – 8) – DB25F (connect to amplifiers)
7 Analog Audio Out (CH 9 – 16) – DB25F (connect to amplifiers)
8 Analog Audio Out (CH 17 – 24) – DB25F (connect to amplifiers). DDR-32 only.
9 Analog Audio Out (CH 25 – 32) – DB25F (connect to amplifiers). DDR-32 only.
2.0 Pre-configured Systems
Units in the initial engineering deliveries have been pre-tested and already setup to stream using AES67.
Please follow these steps to setup the system:
1. Connect the EQ3-AoIP analog outputs to the power amplifiers.
2. Connect a source to the AP25. Currently HDMI IN 1 is setup as the source.
3. Optionally connect a DTV to the AP25 HDMI OUT for video monitoring.
4. Connect the AES67 Ethernet port on the AP25 (the one on the option card backplate; not the one
labeled Ethernet next to the SERVICE PORT) to the AES Ethernet port on the EQ3 (the one next
to IN3/IN4 cut out; not the one labeled Ethernet.) The connection may be made through a Gigibit
Ethernet switch, or with a direct Ethernet cable.
5. Power up EQ3-AoIP and AP25. They can be powered up in any sequence.
6. Power up the audio amplifiers.
7. Once EQ3-AoIP and AP25 completed their startup initializations, audio should be passing
through. On some occasions audio streaming does not start up immediately due to some AES67
network negotiation issues, but they will resolve themselves in a few minutes.
2.1 EQ3-AoIP Analog Output Configuration
The EQ3-AoIP routing configuration is shown in the following screen capture of the EQ3-AoIP
configuration screen. The numbers on the left are the AES67 channel numbers for the AES67 stream.
The numbers on the top are the EQ3-AoIP output channel numbers. However, the pre-production EQ3-
AoIP does not have the correct silkscreen marking on the back panel. Output 1 is simply marked as 17,
output 2 as 18, etc. LF is low frequency crossover filtered output, MH is mid frequency, HF is high
frequency, and FR is full range monitor outputs.

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3.0 Systems Not Pre-Configured
All MDS EQ3-AoIP units are fully tested before shipping, and therefore in the event that audio streaming
is not working out of the box, it is likely that the AES67 routing settings have been changed or are
incompatible with the current environment, for example the sourcing device name has changed. The
following details simple configuration verification and modification that can easily performed in the field.
1. Start the Chrome MDNS Browser (see troubleshooting) to discover the IP addresses of these
destinations: EQ3 Configuration page and two ArchWave pages (one from inside the EQ3, and
the other from inside the AP25.) See Appendix for sample screen captures.
2. Connection to the EQ3 Configuration page indicates that EQ3 is up and running.
3. Connect to the AP25 AUDIOLAN page which is indicated by the Device name of ‘uNet2500-42-
04-DA’. Under the ‘Stream provider’ tab the status for each of the streams should be
‘Transmitting’. See Appendix for a sample screen capture.
4. Connect to the EQ3 AUDIOLAN page which is indicated by the Device name of ‘EQ3-AES67-
sink’. Under the ‘Stream consumer’ tab there should be a square block for each channel. At the
top right corner of each block there should be a blue ‘Receiving’ indication. If it is red Receiving
text with error, there may be a AES67 negotiation problem which will resolve itself in a few
minutes. See Appendix for a sample screen capture.
5. Connect to the EQ3 RS-232 serial port (8 bit, 115200 bps.) In response to ‘/’ (the slash key) and
<Enter> some status information is printed. Specifically the ‘Consecutive frames’ counter should
be incremented between each ‘/’ command, indicating that the DSP is receiving I2S clocks. See
the Appendix for a sample screen capture.
In case the above steps did not resolve the problem, it is possible that for unknown reason the system
configuration has been lost. To fully configure the system from factory reset, please refer to the EQ3
document ‘Getting Started with EQ3.pdf’ and the AP25 document ‘AP25 AES67 Out Card (H790)
Installation and Setup’ (included with the AP25 shipping box.)

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3.1 Troubleshooting Tips
In the event the system configuration has been lost or does not match the operating environment, some
simple troubleshooting steps could be taken in the field to identify and correct configuration problems. In
order to carry out these troubleshooting steps, some supporting equipment and software are needed:
1. A computer with Ethernet connection to run web browsers.
2. A computer with RS-232 connection to connect to the EQ3 console. RS-232 to USB adapter and
a null modem cable will be necessary in most cases.
3. A Gigabit Ethernet switch so multiple devices and the troubleshooting computer can be
connected to the same network. A DHCP server is not necessary.
4. MDNS Browser, a Google Chrome extension to browse the network:
https://chrome.google.com/webstore/detail/mdns-browser/kipighjpklofchgbdgclfaoccdlghidp.
See the Appendix for a sample screen capture.
5. AES67 network audio sometimes will start up instantly as soon as the sourcing and sinking
devices are up and ready, but sometimes may take up to several minutes to correctly sync and
pass audio. Wait a few minutes to see if audio streaming starts on its own.

DDR-16/32 Installation and Operating Guide Version 0.91
Appendix A. Connector Pin-outs
This appendix lists the pin-out of all of the connectors on the back panel of the DDR-16/32.
Figure 1. DDR-16/32 Rear Panel
AES67 IN – RJ45F
Pin Description
1 TX_D1 (+)
2 TX_D1 (-)
3 RX_D2 (+)
4 Not used
5 Not used
6 RX D2 (-)
7 Not used
8 Not used
SERVICE PORT (RS232)– DB9M
Pin Description
1
2 Data in - RXD
3 Data out - TXD
4
5 Chassis GND
6
7
8
9
9-PIN MALE “D”
USB: SOFTWARE UPDATE – USB-A
TYPE
USB AUDIO – USB-B TYPE Note: Not functional for this
application

DDR-16/32 Installation and Operating Guide Version 0.91
ANALOG AUDIO OUT (CH 1 – 8)
DB25F – TASCAM pinout
Pin Description
1 CHANNEL 8 (+)
2 ANALOG GND
3 CHANNEL 7 (-)
4 CHANNEL 6 (+)
5 ANALOG GND
6 CHANNEL 5 (-)
7 CHANNEL 4 (+)
8 ANALOG GND
9 CHANNEL 3 (-)
10 CHANNEL 2 (+)
11 ANALOG GND
12 CHANNEL 1 (-)
13 Not used
14 CHANNEL 8 (-)
15 CHANNEL 7 (+)
16 ANALOG GND
17 CHANNEL 6 (-)
18 CHANNEL 5 (+)
19 ANALOG GND
20 CHANNEL 4 (-)
21 CHANNEL 3 (+)
22 ANALOG GND
23 CHANNEL 2 (-)
24 CHANNEL 1 (+)
25 ANALOG GND
ANALOG AUDIO OUT (CH 9 – 16)
DB25F – TASCAM pinout
Pin Description
1 CHANNEL 16 (+)
2 ANALOG GND
3 CHANNEL 15 (-)
4 CHANNEL 14 (+)
5 ANALOG GND
6 CHANNEL 13 (-)
7 CHANNEL 12 (+)
8 ANALOG GND
9 CHANNEL 11 (-)
10 CHANNEL 10 (+)
11 ANALOG GND
12 CHANNEL 9 (-)
13 Not used
14 CHANNEL 16 (-)
15 CHANNEL 15 (+)
16 ANALOG GND
17 CHANNEL 14 (-)
18 CHANNEL 13 (+)
19 ANALOG GND
20 CHANNEL 12 (-)
21 CHANNEL 11 (+)
22 ANALOG GND
23 CHANNEL 10 (-)
24 CHANNEL 9 (+)
25 ANALOG GND

DDR-16/32 Installation and Operating Guide Version 0.91
ANALOG AUDIO OUT (CH 17 – 24)
DB25F – TASCAM pinout (DDR-32 only)
Pin Description
1 CHANNEL 24 (+)
2 ANALOG GND
3 CHANNEL 23 (-)
4 CHANNEL 22 (+)
5 ANALOG GND
6 CHANNEL 21 (-)
7 CHANNEL 20 (+)
8 ANALOG GND
9 CHANNEL 19 (-)
10 CHANNEL 18 (+)
11 ANALOG GND
12 CHANNEL 17 (-)
13 Not used
14 CHANNEL 24 (-)
15 CHANNEL 23 (+)
16 ANALOG GND
17 CHANNEL 22 (-)
18 CHANNEL 21 (+)
19 ANALOG GND
20 CHANNEL 20 (-)
21 CHANNEL 19 (+)
22 ANALOG GND
23 CHANNEL 18 (-)
24 CHANNEL 17 (+)
25 ANALOG GND
ANALOG AUDIO OUT (CH 25 – 32)
DB25F – TASCAM pinout (DDR-32 only)
Pin Description
1 CHANNEL 32 (+)
2 ANALOG GND
3 CHANNEL 31 (-)
4 CHANNEL 30 (+)
5 ANALOG GND
6 CHANNEL 29 (-)
7 CHANNEL 28 (+)
8 ANALOG GND
9 CHANNEL 27 (-)
10 CHANNEL 26 (+)
11 ANALOG GND
12 CHANNEL 25 (-)
13 Not used
14 CHANNEL 32 (-)
15 CHANNEL 31 (+)
16 ANALOG GND
17 CHANNEL 30 (-)
18 CHANNEL 29 (+)
19 ANALOG GND
20 CHANNEL 28 (-)
21 CHANNEL 27 (+)
22 ANALOG GND
23 CHANNEL 26 (-)
24 CHANNEL 25 (+)
25 ANALOG GND

DDR-16/32 Installation and Operating Guide Version 0.91
Appendix B: DDR-16/32 Product Specifications
System Features
Modular design
AES67 input- up to 24 channels at 48kHz
DDR-16 supports 16 channel analog output
DDR-32 supports 32 channel analog output
Supports bass management
Two and three way crossover
Linkwitz-Riley or Butterworth filters
Filter types:
Low Pass
High Pass
Band Pass
Low and High Shelving
Parametric EQ
Optional Phase inversion of signals
Initialization and control uses web interface
Optional support for Dirac
Test Signal generator
Routing matrix display – also shows any summation of channels
Web-based firmware update
Signal Input
Digital Audio Input (AES67)
Channels: Up to 24 at sample rate of 48kHz
Connector: One RJ45 Ethernet
Signal Outputs
Analog Audio Outputs
Channels: 16 (DDR-16)
32 (DDR-32)
Connectors: Two DB25 Female (Ch 1-8 and Ch 9-16)
Two DB25 Female (Ch 17-24 and Ch 25-32 (DDR-32 only))
TASCAM pinout
Output impedance: 182 Ohm
Recommended minimum load impedance: 5k Ohm to ground on either side, or 10k Ohm
Differential
Output Signal amplitude
Operating point: 4dBu
Maximum unclipped output: +24 dBu

DDR-16/32 Installation and Operating Guide Version 0.91
Output levels adjusted using volume control chips
AC Power Supply Electrical Specification
90-264 VAC, 47-63Hz, auto-switching
60w power consumption
Power supply standby power output: 40W
Efficiency: greater than 85%
Switching frequency: 67kHz typical
Conducted EMI EN 55022-B, FCC Part 15 Level B
Complies with EN61000-3-2, Class A standard
ITE Safety Agency Approvals
RoHS Compliant
Thermal Specification
Operating temperature range: 10 to 45 degrees Celsius
Convection passive cooling.
Management
Ethernet: Status/Control
Status information and setup via external device using internet web browser
Connector: One RJ45 Ethernet
Software update
Connector: One USB A-type
Service Port
RS-232
Connector: One DB9 male
Hardware Dimensions
DDR-16/32 unit
3U 19” rackmount standard
Imperial – 5.22 in (H) x 19.0 in (W) x 10.5 in (D). Unit weight: 12.7 lb
Metric – 13.26 cm (H) x 48.25 cm (W) x 26.67 cm (D) Unit weight: 5.76 kg
Shipping
Imperial – 10.0 in (H) x 22.0 in (W) x 21.0 in (D). Shipping Weight: 18.0 lb
Metric – 25.4 cm (H) x 55.88 cm (W) x 53.34 cm (D). Shipping Weight: 8.16 kg
Regulatory Compliance
TUV
FCC Part 15, subpart B Class A
CE
RoHS compliant
E&OE - All product specifications subject to change without notice. All trademarks are properties of
their respective owners.

DDR-16/32 Installation and Operating Guide Version 0.91
Appendix C. AP25 AES67 Out Card (H790) Setup C-1 Document #: 9301H85300 Ver. 0.91
Appendix C. AP25 AES67 Out Card (H790) Setup
The AP25 AES67 Out card (H790) is a plug in option for the Datasat AP25 audio processor, allowing it
to work seamlessly with the DDR-16/32. This appendix describes setup of the H790. The H790 card
converts audio channels from the AP25 to AES67 format, allowing streaming over an Ethernet cable.
The AES67 signal is then sent to the Datasat DDR-16/32 receiver/DAC unit. The H790 supports
streaming of up to 16 channels at 96kHz, and 24 channels at 48kHz.
The H790 card also provides additional output channel mapping over the Ethernet connection (24
channels total) for use in Bi-amping / Tri-amping, or adding additional speakers to existing input
channels. It does not provide additional input or processing channels.
Setup
Access the AES67 setup screen by selecting the AES67 button from the System Setup (2) screen.
Menu →System →More →AES67
Figure 1 – AP25 Setup (2) Screen
Note: If the AP25 has been set to “Expert Nav Mode” the AES67 button will appear on the
main setup screen.
Figure 2 below shows the main AES67 setup and information screen.
Figure 2 – AES67 Setup Screen
This screen is divided into several sections: