Ross openGear MUX-8252 User manual

Ross Video Limited
MUX-8252 (-A, -B)
AES/EBU Embedder/Multiplexer
User Manual
Ross Part Number: 8252DR-004
Issue: 01B

MUX-8252 (-A, -B) •AES/EBU Embedder/Multiplexer User Manual
•Ross Part Number: 8252DR-004
•Document Issue: 01B
•Printed in Canada.
The information contained in this User Manual is subject to change without notice or obligation.
Copyright
© 2009 Ross Video Limited. All rights reserved.
Contents of this publication may not be reproduced in any form without the written permission of Ross
Video Limited. Reproduction or reverse engineering of copyrighted software is prohibited.
Notice
The material in this manual is furnished for informational use only. It is subject to change without
notice and should not be construed as a commitment by Ross Video Limited. Ross Video Limited
assumes no responsibility or liability for errors or inaccuracies that may appear in this manual.
Trademarks
•is a registered trademark of Ross Video Limited.
•is a registered trademark of Ross Video Limited.
•DashBoard Control System™ is a trademark of Ross Video Limited.
•Ross, ROSS, ROSS®, and MLE are registered trademarks of Ross Video Limited.
•All other product names and any registered and unregistered trademarks mentioned in
this manual are used for identification purposes only and remain the exclusive property
of their respective owners.

Important Regulatory and Safety Notices
Before using this product and any associated equipment, refer to the “Important Safety Instructions”
listed below so as to avoid personnel injury and to prevent product damage.
Products may require specific equipment, and /or installation procedures be carried out to satisfy
certain regulatory compliance requirements. Notices have been included in this publication to call
attention to these Specific requirements.
Symbol Meanings
This symbol on the equipment refers you to important operating and maintenance
(servicing) instructions within the Product Manual Documentation. Failure to heed
this information may present a major risk of damage or injury to persons or
equipment.
Warning
The symbol with the word “Warning” within the equipment manual indicates a
potentially hazardous situation, which if not avoided, could result in death or serious
injury.
Caution
The symbol with the word “Caution” within the equipment manual indicates a
potentially hazardous situation, which if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices.
Notice
The symbol with the word “Notice” within the equipment manual indicates a
situation, which if not avoided, may result in major or minor equipment damage or a
situation which could place the equipment in a non-compliant operating state.
ESD
Susceptibility
This symbol is used to alert the user that an electrical or electronic device or
assembly is susceptible to damage from an ESD event.
Important Safety Instructions
Caution
This product is intended to be a component product of the DFR-8300 series frame.
Refer to the DFR-8300 series frame User Manual for important safety instructions
regarding the proper installation and safe operation of the frame as well as its
component products.
Warning
Certain parts of this equipment namely the power supply area still present a safety
hazard, with the power switch in the OFF position. To avoid electrical shock,
disconnect all A/C power cords from the chassis' rear appliance connectors before
servicing this area.
Warning
Service barriers within this product are intended to protect the operator and service
personnel from hazardous voltages. For continued safety, replace all barriers after
any servicing.
This product contains safety critical parts, which if incorrectly replaced may present
a risk of fire or electrical shock. Components contained within the product’s power
supplies and power supply area, are not intended to be customer serviced and should
be returned to the factory for repair.
To reduce the risk of fire, replacement fuses must be the same type and rating.
Only use attachments/accessories specified by the manufacturer.

EMC Notices
US FCC Part 15
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
users will be required to correct the interference at their own expense.
Notice
Changes or modifications to this equipment not expressly approved by Ross Video
Ltd. could void the user’s authority to operate this equipment.
CANADA
This Class “A” digital apparatus complies with Canadian ICES-003.
Cet appareil numerique de classe “A” est conforme à la norme NMB-003 du Canada.
EUROPE
This equipment is in compliance with the essential requirements and other relevant provisions of CE
Directive 93/68/EEC.
INTERNATIONAL
This equipment has been tested to CISPR 22:1997 along with amendments A1:2000 and A2:2002 and
found to comply with the limits for a Class A Digital device.
Notice
This is a Class A product. In domestic environments this product may cause radio
interference in which case the user may have to take adequate measures.
Maintenance/User Serviceable Parts
Routine maintenance to this openGear product is not required. This product contains no user
serviceable parts. If the module does not appear to be working properly, please contact Technical
Support using the numbers listed under the “Contact Us” section on the last page of this manual. All
openGear products are covered by a generous 5-year warranty and will be repaired without charge for
materials or labor within this period. See the “Warranty and Repair Policy” section in this manual for
details.

Environmental Information
The equipment that you purchased required the extraction and use of natural resources for its
production. It may contain hazardous substances that could impact health and the environment.
To avoid the potential release of those substances into the environment and to diminish the need for
the extraction of natural resources, Ross Video encourages you to use the appropriate take-back
systems. These systems will reuse or recycle most of the materials from your end-of-life equipment in
an environmentally friendly and health conscious manner.
The crossed-out wheeled bin symbol invites you to use these systems.
If you need more information on the collection, reuse, and recycling systems, please contact your local
or regional waste administration.
You can also contact Ross Video for more information on the environmental performances of our
products.

MUX-8252 User Manual (Iss. 01B) Contents •i
Contents
Introduction 1-1
In This Chapter .......................................................................................................................1-1
A Word of Thanks....................................................................................................1-1
Overview ..................................................................................................................1-2
Features ....................................................................................................................1-2
Functional Block Diagrams......................................................................................1-3
Documentation Terms ..............................................................................................1-4
Installation and Setup 2-1
In This Chapter .......................................................................................................................2-1
Static Discharge........................................................................................................2-1
Unpacking ................................................................................................................2-1
Rear Module Installation (Optional) ........................................................................2-2
Board Installation .....................................................................................................2-3
Cable Connections....................................................................................................2-3
User Controls 3-1
In This Chapter .......................................................................................................................3-1
Reference Setup........................................................................................................3-2
LEDs.........................................................................................................................3-3
Control and Monitoring 4-1
In This Chapter .......................................................................................................................4-1
Output Format Reference Compatibility ..................................................................4-1
Heads-Up Display ....................................................................................................4-2
DashBoard Control System......................................................................................4-4
SNMP Monitoring and Control................................................................................4-8
Specifications 5-1
In This Chapter .......................................................................................................................5-1
MUX-8252-A Technical Specifications...................................................................5-2
MUX-8252-B Technical Specifications...................................................................5-3
Channel Status Data Table .......................................................................................5-4
Service Information 6-1
In This Chapter .......................................................................................................................6-1
Troubleshooting Checklist .......................................................................................6-1
Power LED Conditions ............................................................................................6-2
Bootload Button .......................................................................................................6-2
Warranty and Repair Policy .....................................................................................6-2

ii •Contents MUX-8252 User Manual (Iss. 01B)
Ordering Information 7-1
MUX-8252 and Related Products.......................................................................................... 7-1

MUX-8252 User Manual (Iss. 01B) Introduction •1-1
Introduction
In This Chapter
This chapter contains the following sections:
•A Word of Thanks
•Overview
•Features
•Functional Block Diagram
•Documentation Terms
A Word of Thanks
Congratulations on purchasing the Ross Video MUX-8252,AES/EBU Embedder/Multiplexer. The
MUX-8252 is part of a full line of Digital Products within the openGear Terminal Equipment family
of products, backed by Ross Video’s experience in engineering and design expertise since 1974.
You will be pleased at how easily your new MUX-8252 fits into your overall working environment.
Equally pleasing is the product quality, reliability and functionality. Thank you for joining the group
of worldwide satisfied Ross Video customers!
This manual provides installation and operational instructions for the MUX-8252-A, and MUX-8252-
B versions. Should you have a question pertaining to the installation or operation of your MUX-8252-
A, and/or MUX-8252-B, please contact us at the numbers listed on the back cover of this publication.
Our technical support staff is always available for consultation, training, or service.

1-2 •Introduction MUX-8252 User Manual (Iss. 01B)
Overview
The MUX-8252 AES/EBU Embedder/Multiplexer is a broadcast quality embedder with one multi-rate
SDI input which supports up to 16 channels of embedded audio and four AES inputs. The MUX-8252
is fully compliant with all openGear technical specifications and supports remote monitoring and
control via the DashBoard Control System™.
The MUX-8252 can take in up to four AES inputs and embeds them into any of the 16 possible audio
channels in an SD or HD SDI output. If the input is a synchronous 48kHz signal, the audio will be
embedded into the SDI signal unaltered. If the input is not a synchronous 48kHz signal, it may be
converted using Sample Rate Conversion before it is embedded on the SDI output.
The AES inputs have the following adjustments available: delay, gain, invert, and sum. The embedded
audio will be dithered automatically.
Any openGear frame supports a distributed frame reference, allowing incoming reference sync signals
to feed timing information to all modules in a frame. Each card accepts an additional reference signal
providing additional system timing flexibility.
For monitoring purposes, the output video is also encoded and output as analog NTSC or PAL. Card
status and control parameters are displayed on a Heads-Up Display superimposed on the monitoring
output path.
The MUX-8252 is part of a growing line of openGear AES solutions, including distribution,
conversion and monitoring. Designed and manufactured to meet the highest quality broadcast industry
standards, the openGear MUX-8252 is an ideal, cost effective solution for embedding four AES audio
streams into an HD/SD signal.
Features
The following features make the MUX-8252 the most versatile AES/EBU Embedder/Multiplexer card
for your professional audio-video requirements:
•HD/SD SDI SMPTE-292M, 1.5Gbps and SMPTE 259M, 270Mbps
•Audio embedding for all popular formats 480i, 576i, 720p and 1080i
•Four selectable audio groups with selection of overwrite or insert
•Four options for selecting the reference
•MUX-8252-A provides four AES-3id 75Ωunbalanced inputs
•MUX-8252-B provides four AES-3 110Ωbalanced inputs
•Two SDI processed outputs
•One unprocessed reclocked output
•Automatic input video format detection
•Audio controls such as gain, invert, delay and sum
•On-screen menu display on the monitoring output
•Composite monitoring output (NTSC or PAL)
•Internally generated test patterns and test tones
•5-year transferable warranty
•Compatible with openGear DFR-8300 series frames

MUX-8252 User Manual (Iss. 01B) Introduction •1-3
Functional Block Diagrams
Figure 1. Simplified Block Diagram of MUX-8252-A
Figure 2. Simplified Block Diagram of MUX-8252-B

1-4 •Introduction MUX-8252 User Manual (Iss. 01B)
Documentation Terms
The following terms are used throughout this guide:
•“Frame” refers to the DFR-8300 series frames that houses the MUX-8252 card,
both cooling and non-cooling versions, as well as any openGear frames. See the
respective User Manuals for details.
•All references to the DFR-8300 series frames also include the DFR-8300 versions
with the cooling fan option. Refer to the respective User Manuals for details.
•“Operator” and “User” both refer to the person who uses the MUX-8252.
•“Board” and “Card”, all refer to the MUX-8252 board itself, including all
components, switches and versions.
•“MUX-8252” refers to both the MUX-8252-A and MUX-8252-B versions unless
otherwise stated.
•“System” and “Video system” refer to the mix of interconnected production and
terminal equipment in which the MUX-8252 operates.

MUX-8252 User Manual (Iss. 01B) Installation and Setup •2-1
Installation and Setup
In This Chapter
This chapter contains the following sections:
•Static Discharge
•Unpacking
•Rear Module Installation (Optional)
•Board Installation
•Cable Connections
Static Discharge
Whenever handling the MUX-8252 and other related equipment, please observe all static discharge
precautions as described in the following note:
ESD
Susceptibility
Static discharge can cause serious damage to sensitive
semiconductor devices. Avoid handling circuit boards in high
static environments such as carpeted areas, and when wearing
synthetic fiber clothing. Always exercise proper grounding
precautions when working on circuit boards and related
equipment.
Unpacking
Unpack each MUX-8252 from the shipping container and check the contents to ensure that all items
are included. If any items are missing or damaged, contact your sales representative or Ross Video
directly.

2-2 •Installation and Setup MUX-8252 User Manual (Iss. 01B)
Rear Module Installation (Optional)
The MUX-8252 is compatible with the DFR-8300 series frames. The procedure for installing the Rear
Module in your openGear frame is the same regardless of the module used. However, a different
module is required depending on the MUX-8252 that you are using.
MUX-8252-A Rear Modules
When installing the MUX-8252-A in a DFR-8310 series frame, the R1A-8252 Rear Module is
required. The MUX-8252-A is also compatible with the DFR-8310-BNC frame. When installing the
MUX-8252-A in a DFR-8320 series frame, the R2A-8252 Rear Module is required.
MUX-8252-B Rear Modules
When installing the MUX-8252-B in a DFR-8310 series frame, the R1B-8252 Rear Module is
required. The MUX-8252-B is not compatible with the modules installed in the DFR-8310-BNC
frame. When installing the MUX-8252-B in a DFR-8320 series frame, the R2B-8252 Rear Module is
required.
Installing the Rear Modules
If you are installing the MUX-8252-A in a DFR-8310-BNC frame, or the Rear Module is already
installed, skip this section.
Use the following procedure to install the Rear Module in a DFR-8300 series frame:
1. Refer to the DFR-8300 series frame User Manual, to ensure that the frame is
properly installed according to instructions.
2. On the rear of the frame, locate the card frame slot.
3. Remove the Blank Plate from the rear of the slot you have chosen for the MUX-
8252 installation. If there is no Blank Plate installed, proceed to the next step.
4. As shown in Figure 3, seat the bottom of the rear module in the seating slot at the
base of the frame’s back plane.
Figure 3. Rear Module Installation (MUX-8252 not shown)

MUX-8252 User Manual (Iss. 01B) Installation and Setup •2-3
5. Align the top hole of the Rear Module with the screw hole on the top-edge of the
frame backplane.
6. Using a Phillips screwdriver and the supplied screw, fasten the Rear Module to the
frame backplane. Do not over tighten.
7. Ensure proper frame cooling and ventilation by having all rear frame slots covered
with Rear Modules or blank metal plates. If you need blanks, refer to the chapter,
“Ordering Information” in your DFR-8300 series frame User Manual, and contact
your Ross Video sales representative.
This completes the procedure for installing the Rear Module in a DFR-8300 series frame.
Board Installation
Use the following procedure to install the MUX-8252 in a DFR-8300 series frame:
1. Refer to the User Manual of your frame to ensure that the frame is properly installed
according to instructions.
2. After selecting the desired frame installation slot, hold the MUX-8252 card by the
edges and carefully align the card edges with the slots in the frame.
3. Fully insert the card into the frame until the rear connection plugs are properly
seated on the midplane and rear modules.
This completes the procedure for installing the MUX-8252 in a DFR-8300 series frame.
Cable Connections
The MUX-8252 accommodates four synchronous AES input streams at 48kHz or any asynchronous
AES stream from 20kHz to 192kHz with sample rate conversion (SRC) enabled. SRC should only be
used with PCM (Pulse Code Modulation) digital audio and not any form of compressed signal, such as
Dolby, for example.

2-4 •Installation and Setup MUX-8252 User Manual (Iss. 01B)
MUX-8252-A Cable Connections
This section provides instructions for connecting cables to the MUX-8252-A when mounted in an
openGear DFR-8300 series frame. Refer to Figure 4 for input and output designations when using the
R1A-8252 or the R2A-8252 Rear Modules.
Figure 4. Cable Connections for the R1A-8252 and R2A-8252 Rear Modules
MUX-8252-B Cable Connections
This section provides instructions for cable connections when mounting the MUX-8252-B in a DFR-
8300 series frame. Refer to Figure 5 for guidelines to attach the required SDI input and output BNC
cables.
Figure 5. Cable Designations for the R1B-8252 and R2B-8252 Rear Modules

MUX-8252 User Manual (Iss. 01B) User Controls •3-1
User Controls
In This Chapter
This chapter contains the following sections:
•Reference Setup
•LEDs

3-2 •User Controls MUX-8252 User Manual (Iss. 01B)
Reference Setup
This section provides information on selecting a reference source for the MUX-8252 and configuring
the local reference termination jumper.
Local Reference Termination Jumper
If you have elected to use a local reference signal, it must be terminated on the card with J20. Refer to
Figure 6 for jumper location.
Figure 6. Reference Termination Jumper Location
Set jumper J20 as follows:
•TERM — Install the jumper in this position to terminate the reference on the MUX-8252
(the bottom two pins). This is the default setting.
•UNTERM — Install the jumper on the upper two pins to leave the reference
unterminated.
Selecting the Reference Source
Important Ensure that you are running DashBoard software version 2.1 or
higher. The DashBoard Control System software and manual are
available for download from the Ross Video website.
Use the following procedure to configure the reference on the MUX-8252 using DashBoard:
1. Ensure the MUX-8252 card is properly installed in the frame. Refer to the section
“Board Installation” for details.
2. In DashBoard, display the Device tab of the MUX-8252 by double-clicking its status
indicator in the Basic Tree View.
3. Click the Setup tab.
4. Select a Reference source from the Reference list in the Setup tab. You can choose from
the following:
•Frame 1 — Select this option to use the source connected to the REF 1 port on the
DFR-8300 series frame that the MUX-8252 is installed in.
•Frame 2 — Select this option to use the source connected to the REF 2 port on the
DFR-8300 series frame that the MUX-8252 is installed in.
•Local — Select this option to use the source connected to BNC 10.
•Video — Select this option to use the video input source connected to BNC 1.
This completes the procedure for configuring the reference on the MUX-8252 using DashBoard.

MUX-8252 User Manual (Iss. 01B) User Controls •3-3
LEDs
When all jumper and cabling configuration is complete, apply the SDI video input signal.
Figure 7. Card-edge LEDs
The front card-edge has LEDs that display the status of input signals. The LED displays are described
in Figure 7 and Table 1.
Table 1. Status LED Descriptions
LED Location Color Display and Description
Off Indicates no power to the card.
Orange When lit and orange, the card is powering up.
Green When lit and green, the card is running with valid input and
reference.
Flashing Green When flashing green, the bootloader is waiting for a software
upload.
Flashing
Green/Orange
When flashing green and orange, a signal error is present, such as a
missing or invalid input or reference.
Power DS1
Red When lit red, the card is not operational.

3-4 •User Controls MUX-8252 User Manual (Iss. 01B)
LED Location Color Display and Description
Off Indicates the absence of an input signal.
Green When lit green, this LED indicates a valid video input.
Input OK DS2
Flashing Green When flashing green, this LED indicates that a video signal is
present but the input format is unsupported.
Off Indicates the absence of a reference signal.
Green When lit green, this LED indicates a valid reference signal.
REF Input
OK DS3
Flashing Green When flashing green, this LED indicates that the reference is
present but the format is invalid.
Green When lit green, this LED indicates that the card is installed in a
valid Rear Module on the frame.
Status 1 DS4
Flashing Green When flashing green, this LED indicates the card is not installed in
a valid Rear Module.
Green When lit green, this LED indicates the card is processing audio
without any errors.
Status 2 DS5
Flashing Green When flashing green, this LED indicates an audio processing error.