Cobalt Digital COMPASS 9262 User Manual

Cobalt Digital Inc.

9262

AES/EBU Digital to Analog Audio Converter – 75 Ohm

User Manual

CDI Part Number: 9262
V.1.2

8/7/2012

9262 •••• AES/EBU Digital to Analog Audio Converter 75 Ohm User Manual

• Cobalt Digital Part Number: 9262

• Document Version: 1.2

• Printed in the United States.

The information contained in this User Manual is subject to change without notice or
obligation.

Copyright

© 2012 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 com ponent 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 incorrectly replaced m ay
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 Inc. 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 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
materials or labor within this period. See the “W arranty and Repair Policy” section in this manual for
details.

®

products are covered by a generous 5-year warranty and will be repaired without charge for

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 9262 is an AES/EBU digital to analog audio converter designed for broadcast use. It
provides digital to analog audio conversion along with AES/EBU signal distribution.

The 9262 supports audio sampling frequencies from 30kHz to 192 kHz. It converts the
incoming AES/EBU digital audio signal to a stereo analog audio signal us ing 24 bit conver s ion
technology.

Cable equalization and reclocking techniques enable the 9262 to recover the inc oming digital
audio signal reliably.

The 9262 is designed for use in the openGear

Functional Block Diagram

®

8320 or equivalent 20-slot series frames.

6

Figure 1. Simplified Block Di agram of the 9262 Functions

Features

The following features make the 9262 the best solution for digital to analog audio conversion.

• Converts AES/EBU digital to analog audio while providing AES/EBU signal
distribution

• Cable equalization and data reclocking on the incoming AES/EBU signal

• 24 bit technology provides the highest quality signal conversion

• Supports audio sampling frequencies from 30kHz to 192 kHz

• 5 year warranty

®

• Fits openGear

8320 series or equivalent 20-slot frames

Documentation Terms

The following terms are used throughout this guide:

• “Frame” refers to the frame-C frame that houses the 9262 card.

• “Operator” and “User” refer to the person who uses the 9262.

• “Board”, and “Card” refer to the 9262 card itself, including all components

and switches.

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Installation and Setup

This chapter contains the following sections:

• Static Discharge

• Unpacking

• Rear Module Options

• Board Installation

Static Discharge

Whenever handling the 9262 and other r elated equipment, please observe all s tatic discharge
precautions as described in the following note:

Static discharge can cause serious damage to sensitive
semiconductor devices. Avoid handling circuit boards in
high static environments such as carpeted areas, and

ESD
Susceptibility

when wearing synthetic fiber clothing. Always exercise
proper grounding precautions when working on circuit
boards and related equipment.

Unpacking

Unpack each 9262 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-9262-B module. You will need to install it in your frame before you can connect cables.

Use the following steps to install a rear module in a 20-slot frame:

1. Refer to the frame Owner’s 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. 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.

Figure 2. Rear Module Installation

4. Align the top hole of the RM-9262-B with the screw hole on the top edge of the
frame back plane.

5. Using a Phillips driver and the supplied screw, fasten the rear module to the frame
back plane. Do not over tighten.

All modules are installed using the same method above.

The following section contains a drawing of the RM-9262-B module.

9

Rear Module Options

This section provides ins tructions f or connecting c ables to the installed BNC rear m odules on
the frame back plane. Connec t the input and output cables ac c ording to the following diagram.
The input is internally terminated with 75 ohms. It is not necessary to terminate unused
outputs. Split rear module RM20-9262-B/S allows two cards to be installed in adjacent slots.

RM20-9262-B RM20-9262-B/S

Figure 2. Rear Modules

10

User Controls

This chapter contains a description of the 9262 user controls:

• EQ Switch

• LEDs

• DIP Switch Settings

.

User Controls

Figure 3. Card-edge User Controls

11

EQ Switch — SW1

The EQ Switch (SW1) is used to insert the cable equalizer into the incoming AES/EBU signal. The 9262 can
recover digital audio signals conforming to AES/EBU specifications and transmitted over 75ohm, 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.

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 on there is a valid AES/EBU signal at the input.

When on a valid AES/EBU signal is not present

When on this indicates that the cable EQ has been inserted by
pressing SW1 or that feature has been enabled through Dashboard.

When on this indicates that the 9262 is communicating to Dashboard
through the CAN bus.

When on 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

DIP switch settings

ON

OFF

Table 1 Analog Output Level

SW 1-1 SW 1-2

1 ON ON Mute
2 ON OFF -12dBFS/+4dBu
3 OFF ON -18dBFS/+4dBu
4 OFF OFF -20dBFS/+4dBu

SW3 Tone Generator

SW 1-1 SW 1-2 SW3 SW4 SW5 SW6 SW7 SW8

Figure 4. DIP Switch

‘ON’ – Generates -20dBFS line up tone. This featur e requires an input signal
for reference. The tone is 1Khz when input sample rate is 48K, 2KHz at 96K
and 4KHz at 192 K.

‘OFF’ – Normal operation.
SW7 Default (power up default parameter settings)

‘ON’ – Get card parameters from non volatile m em ory, ignore dip switch
settings. (Configurable with Dashboard Control system)

‘OFF’ – Get card parameters from the Dip switch.

SW8 Dashboard Enable

‘ON’ – Only card status is available on Dashboard, users are prevented from
changing parameters.

‘OFF’ – Normal operation, users have full access to the cards parameters.

13

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 75Ω unbalanced
Sampling Frequency Range 30 kHz to 192 kHz
Jitter Less than 5 ns

ANALOG (fs=48 kHz, 0 dBFS = +24 dBu)

Maximum Output Level +24 dBu
Frequency Response +/-0.2 dB, 20 Hz to 20 kHz
Noise(un-weighted) 84 dBu ,20 Hz to 20 kHz
THD+N < 0.01%
Stereo Separation 100 dB, 20 Hz to 20 kHz
Output Impedance 60Ω Balanced

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.

14

Warranty and Repair Policy

This product is warranted to be free from defects in material and workmanship for a period of five (5)
years from the date of shipment to the original purchaser, except that 4000, 5000, 6000, 8000 series
power supplies, and Dolby® modules (where applicable) are warranted to be free from defects in
material and workmanship for a period of one (1) year.

Cobalt Digital Inc.'s (“Cobalt”) sole obligation under this warranty shall be limited to, at its option, (i)
the repair or (ii) replacement of the product, and the determination of whether a defect is covered under
this limited warranty shall be made at the sole discretion of Cobalt.

This limited warranty applies only to the original end-purchaser of the product, and is not assignable or
transferrable therefrom. This warranty is limited to defects in material and workmanship, and shall not
apply to acts of God, accidents, or negligence on behalf of the purchaser, and shall be voided upon the
misuse, abuse, alteration, or modification of the product. Only Cobalt authorized factory
representatives are authorized to make repairs to the product, and any unauthorized attempt to repair
this product shall immediately void the warranty. Please contact Cobalt Technical Support for more
information.

To facilitate the resolution of warranty related issues, Cobalt recommends registering the product by
completing and returning a product registration form. In the event of a warrantable defect, the
purchaser shall notify Cobalt with a description of the problem, and Cobalt shall provide the purchaser
with a Return Material Authorization (“RMA”). For return, defective products should be double boxed,
and sufficiently protected, in the original packaging, or equivalent, and shipped to the Cobalt Factory
Service Center, postage prepaid and insured for the purchase price. The purchaser should include the
RMA number, description of the problem encountered, date purchased, name of dealer purchased from,
and serial number with the shipment.

Cobalt Digital Inc. Factory Service Center

2406 E. University Avenue Office: [phone]

Urbana, IL 61802 USA Fax: [phone]

www.cobaltdigital.com Email: [e-mail]

THIS LIMITED WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES
EXPRESSED OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE AND OF ALL OTHER OBLIGATIONS OR
LIABILITIES ON COBALT'S PART. ANY SOFTWARE PROVIDED WITH, OR FOR USE WITH,
THE PRODUCT IS PROVIDED “AS IS.” THE BUYER OF THE PRODUCT ACKNOWLEDGES
THAT NO OTHER REPRESENTATIONS WERE MADE OR RELIED UPON WITH RESPECT TO
THE QUALITY AND FUNCTION OF THE GOODS HEREIN SOLD. COBALT PRODUCTS ARE
NOT AUTHORIZED FOR USE IN LIFE SUPPORT APPLICATIONS.

COBALT'S LIABILITY, WHETHER IN CONTRACT, TORT, WARRANTY, OR OTHERWISE, IS
LIMITED TO THE REPAIR OR REPLACEMENT, AT ITS OPTION, OF ANY DEFECTIVE
PRODUCT, AND SHALL IN NO EVENT INCLUDE SPECIAL, INDIRECT, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES (INCLUDING LOST PROFITS), EVEN IF IT HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

15

In Case of Problems

Should any problem arise with your 9262, 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 9262. If required, a temporary
replacement module will be m ade available at a nom inal charge. Any shipping costs inc urred
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, beyond the warranty period without charge, for the life
of the equipment.

16

Ordering Information

Standard Equipment

• 9262 AES/EBU Digital to Analog Audio Converter 75 Ohm

Optional Equipment

 9262OM AES/EBU Digital to Analog Audio Converter 75 Ohm Owner's Manual

(additional Owner’s Manual)

 RM-9262-B Standard-Width Rear Module (20-Slot Frame Rear I/O Module

(Standard Width) 1 AES Input BNC, 4 AES Reclocked Output BNCs, 4 Analog
Audio Outputs)

 RM-9262-B/S Split Rear Module (20-Slot Frame Rear I/O Module (Split) Dual AES Input,

2 AES Outputs per card, 2 Analog Outputs (Stereo Pair) per card)

Your 9262 Digital to Analog Audio Converter is a part of the openGear
products. Cobalt Digital offers a full line of terminal equipment including distribution,
conversion, monitoring, muxing, demux ing and processing of AES/EBU and HD/SD­SDI as well as analog audio and video products.

17

®

family of

Contact Us

Contact Cobalt Digital Inc.

PHONE

E-MAIL

POSTAL

SERVICE

General Business Office
and Technical Support

Fax
Sales Information

Support Information

Cobalt Digital Inc.

217.344.1243

217.344.1245

[e-mail]
[e-mail]

2406 East University Avenue
Urbana, IL 61802 USA

Visit us at the Cobalt Digital Inc. website.

http://www.cobaltdigital.com

• Online catalog

• Related products and full product lines

• Trade show information

• Dealer information

• Cobalt Digital Inc. news

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