Cobalt Digital Inc.
9252
1x8 AES/EBU Distribution Amplifier - 110 Ohm
User Manual
CDI Part Number: 9252
V.1.1
9252 Manual V.1.1
10/5/2010
9252 •••• 1x8 AES/EBU Distribution Amplifier - 110 Ohm, User Manual
• Cobalt Digital Part Number: 9252
• Document Version: 1.1
• Printed in the USA.
The information contained in this User Manual is subject to change without notice or
obligation.
Copyright
© 2010 Cobalt Digital Inc. All rights reserved.
Contents of this publication may not be reproduced in any form without the written perm ission
of Cobalt Digital Inc. 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 com mitment by Cobalt Digital Inc. Cobalt
Digital Inc. assumes no responsibility or liability for errors or inaccuracies that ma y appear in
this manual.
Trademarks
• is a registered trademark of Ross Video Limited.
•
• All other product names and any registered and unregistered trademarks
mentioned in this manual are us ed f or identif ic ation purpos es only and remain the
exclusive property of their respective owners.
is a registered trademark of Cobalt Digital Inc.
2
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 carr ied out to satisf y
certain regulatory compliance requirem ents . Notices have been included in this public ation to call
attention to these Specific requirements.
Symbol Meanings
Warning
Caution
Notice
ESD
Susceptibility
This symbol on the equipment refers you to important operating and
maintenance (servicing) instructions within the Product Manual
Documentation. Failure to heed this inform ation may present a major risk of
damage or injury to persons or equipment.
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.
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.
The symbol with the word “Notice” within the equipment m anual indicates a
situation, which if not avoided, may result in major or minor equipment
damage or a situation which could place the equipm ent in a non-compliant
operating state.
This symbol is used to alert the user that an electrical or electronic devic e or
assembly is susceptible to damage from an ESD event.
Important Safety Instructions
Caution
Warning
Warning
This product is intended to be a c omponent product of the openGear 8000
series frame. Refer to the openGear 8000 series frame User Manual for
important safety instructions regarding the proper installation and safe
operation of the frame as well as it’s component products.
Certain parts of this equipment nam ely 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.
Service barriers within this product are intended to protect the oper ator and
service personnel from hazardous voltages. For continued saf ety, replace all
barriers after any servicing.
This product contains safety critical parts , which if incorrec tly 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.
3
EMC Notices
US FCC Part 15
This equipment has been tes ted and found to c om ply with the limits for a c lass A Digital device, pursuant
to part 15 of the FCC Rules. These lim its are designed to provide reasonable protec tion against harm ful
interference when the equipment is operated in a commer cial 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 ex pres s ly approved by Cobalt
Digital Systems 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 test ed 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 dom estic environm ents this product ma y 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 r equired. T his produc t contains no user se rviceable
parts. If the module does not appear to be work ing properly, please c ontact Tec hnical Support us ing 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.
4
Environmental Information
The equipment th at you purchased requ ired the extractio n 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 envir onment and to diminish the need
for the extraction of natural re sources, Cobalt Digital Inc. encourages you to use the appropriate
take-back system s. T hese s ystems will reuse or recycle m ost of the m aterials f rom your end-of-lif e
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, reus e, and recycling systems, please contact your
local or regional waste administration.
5
Introduction
This chapter contains the following sections:
• Overview
• Functional Block Diagram
• Features
• Documentation Terms
Overview
The 9252 is an AES/EBU distribution amplifier designed f or broadcast use. It provides eight
copies of the incoming signal.
The 9252 supports audio sam pling frequencies from 30k Hz to 192 kHz. Cable equalization
and reclocking techniques enable the 9252 to recover the incoming digital audio signal
reliably.
The 9252 is housed in the openGear 8310-C series frames.
Functional Block Diagram
6
Features
The following features make the 9252 the best solution for digital audio distribution.
• Cable equalization and data reclocking on the incoming AES/EBU signal
• Supports audio sampling frequencies from 30kHz to 192 kHz
• 5 year warranty
• Fits openGear 8310-C series frames
Documentation Terms
The following terms are used throughout this guide:
• “Frame” refers to the 8310-C frame that houses the 9252 card.
• “Operator” and “User” refer to the person who uses the 9252.
• “Board”, and “Card” refer to the 9252 card itself, including all components
and switches.
7
Installation and Setup
This chapter contains the following sections:
• Static Discharge
• Unpacking
• Rear Module Options
• Board Installation
Static Discharge
Whenever handling the 9252 and other r elated equipment, please observe all s tatic 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 9252 you received from the shipping c ontainer, and check the c ontents against
the packing list to ensure that all item s are included. If any items are missing or damaged,
contact your sales representative or Cobalt Digital Inc. directly.
8
Rear Module Installation
If you are installing the card into a slot with no rear module, you should have ordered and received one
of the RM-9252-A module. You will need to install it in your 8310 frame before you can connect
cables.
Use the following steps to install a rear module in an 8310 openGear
1. Refer to the openGear
properly installed according to instructions.
2. On the rear of the 8310, locate the card frame slot.
3. As shown in Figure 2, seat the bottom of the rear module in the seating slot at the
base of the frame’s back plane.
TM
frame:
TM
8310 frame Owner’s Manual, to ensure that the frame is
Figure 2. Rear Module Installation
4. Align the top hole of the RM-9252-A with the screw hole on the top edge of the 8310
back plane.
5. Using a Phillips driver and the supplied screw, fasten the rear module to the 8310
back plane. Do not over tighten.
All modules are installed using the same method above.
The following section contains a drawing of the RM-9252-A module.
9
Rear Module Options
This is a drawing of the RM-9252-A rear module to be used in the 10 slot 8310-C frame only.
Figure 3. Rear Module
Board Installation
Use the following procedure to install the 9252 in an openGear 8310-C Series frame.
1. Refer to the User Manual of the openGear 8310-C series frame to ensure
that the frame is properly installed according to instructions.
2. After selecting the desired frame installation slot, hold the 9252 car d by the
edges and carefully align the card edges with the slots in the fram e. Then
fully insert the card into the frame until the rear connection plugs are properly
seated on the midplane and rear module.
This completes the procedure for installing the 9252 in an openGear 8310-C Series frame.
10
User Controls
This chapter contains a description of the 9252 user controls:
• EQ Switch
• LEDs
.
User Controls
Lock LED
No Lock LED
EQ LED
COM A ctivity LED
Error LED
D6201A
Figure 3. Card-edge User Controls
EQ Switch
EQ Switch — SW1
The EQ Switch (SW1) is used to insert the cable equalizer into the incoming AES/EBU signal. The
9252 can recover digital audio signals conforming to AES/EBU specifications and transmitted over
110ohm, coaxial cable, up to 600 metres (2000 ft) long without equalization. For cable lengths in
excess of 600 metres, we recommend that the input equalization be activated. Note that switching the
EQ in and out can cause audible artefacts.
• Pressing the EQ Switch SW1 will activate the yellow EQ LED to indicate this
feature is activated.
• While the EQ Switch SW1 is activated pressing it again will disable the EQ and
the yellow EQ LED will go off.
11
LEDs
The front-edge of the card features LEDs that display the status of the input signals.
As selections are made in the menus, (refer the subsequent chapter for complete menu
descriptions), the LEDs display the status of the input signals. Descriptions are provided in the
following table:
LED Color Location Display and Description
Lock
No Lock Red
EQ Yellow
Com
Activity
Error
Green
Green
Red
Top of the
card
Second
from the
top
Third from
the top
Fourth from
the top
Fifth from
the top
When illuminated there is a valid AES/EBU signal at the input.
When illuminated a valid AES/EBU signal is not present
When illuminated this indicates that the cable EQ has been inserted
by pressing SW1 or that feature has been enabled through
Dashboard.
When illuminated this indicates that the 9252 is communicating to
Dashboard through the CAN bus.
When illuminated this indicates that there is an error in the
communications to Dashboard through the CAN bus.
Table 1. Status LED Desc ri pt i ons
12
Specifications
Technical Specifications
DIGITAL INPUT
Resolution 24 Bit
Input Level 0.2-7 Vp-p
Input Impedance (transfor mer balanced) 75Ω,110 Ω, HiZ
Sampling Frequency Range 30 kHz to 192 kHz
DIGITAL OUTPUT
Resolution 24 Bit
Output Level 1 V p-p nominal
Output Impedance 110Ω balanced
Sampling Frequency Range 30 kHz to 192 kHz
Jitter Less than 5 ns
GENERAL
Power Requirements +12 V,4Watts, MAX
Dimensions 3.025" high x 12.800" deep
Weight approx.0.115 kg (0.252 lbs)
Cobalt Digital Inc. reserves the right to change performance specifications without prior notice.
13
Warranty and Service Information
Warranty and Repair Policy
The openGear 9252 is warranted to be free of any defect with respect to performanc e, quality,
reliability, and workmanship for a period of FIVE (5) years from the date of shipm ent from our
factory. In the event that your openGear 9252 proves to be defective in any way during this
warranty period, Cobalt Digital Inc. reserves the right to repair or replace this piece of
equipment with a unit of equal or superior performance characteristics.
Should you find that this openGear 9252 has failed after your warranty period has expired, we
will repair your defective product should suitable replacem ent com ponents be available. You,
the owner, will bear any labor and/or part costs incurred in the repair or ref urbishm ent of said
equipment beyond the FIVE (5) year warranty period.
In no event shall Cobalt Digital Inc. be liable for direct, indirect, special, incidental, or
consequential damages (including los s of profits ) incurred by the use of this produc t. Implied
warranties are expressly limited to the duration of this warranty.
This openGear 9252 User Manual provides all pertinent information for the saf e installation
and operation of your openGear Product. Cobalt Digital policy dictates that all repairs to the
openGear 9252 are to be conducted only by an authorized Cobalt Digital factory
representative. Therefore, any unauthorized attempt to repair this product, by anyone other
than an authorized Cobalt Digital factory representative, will automatically void the warranty.
Please contact Cobalt Digital Technical Support for more information.
In Case of Problems
Should any problem arise with your openGear 9252, please contact the Cobalt Digital
Technical Support Department. (Contact information is supplied at the end of this
publication.)
A Return Material Authorization number (RMA) will be issued to you, as well as specific
shipping instructions, should you wish our factory to repair your openGear 9252. If required, a
temporary replacement module will be made available at a nominal charge. Any shipping
costs incurred will be the responsibility of you, the customer. All products shipped to you from
Cobalt Digital Inc. will be shipped collect.
The Cobalt Digital Technical Support Department will continue to provide advice on any
product manufactured by Cobalt Digital Inc., beyond the warranty period without charge, for
the life of the equipment.
14
Ordering Information
Standard Equipment
• 9252 AES/EBU Distribution Amplifier 75 Ohm
Optional Equipment
• 9252OM AES/EBU Distribution Amplifier 75 Ohm Owner's Manual
(additional Owner’s Manual)
• RM-9252-A 10-BNC Rear Module (for installation into 8310-C f rame
only)
Your 9252 Distribution Amplifier is a part of the openGear family of products. Cobalt
Digital offers a full line of openGear terminal equipment including distribution,
conversion, monitoring, m uxing, demuxing and proces sing of AES/EBU and HD/SDSDI as well as analog audio and video products.
15
Contact Us
Contact our friendly and professional support representatives for the following:
• Name and address of your local dealer
• Product information and pricing
• Technical support
• Upcoming trade show information
General Business
PHONE
Office and Technical
Support
217 • 344 • 1243
Fax
E-MAIL
POSTAL
SERVICE
Sales Information
Technical Support
Cobalt Digital Inc.
Visit Us
Please visit us at our website for:
• Company information
• Related products and full product lines
• On-line catalog
• Trade show information
• News
www.cobaltdigital.com
217 • 344 • 1245
Sales@cobaltdigital.com
Support@cobaltdigital.com
2406 E. University Ave.
Urbana, IL 61802 USA
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