Sonifex Redbox RB-DDA6A-2P Instruction Manual

RB-DDA6A-2P 6 Way Stereo
AES/EBU Digital Distribution
Amplier with Dual Power
Supplies
User Handbook

bRedbox RB-DDA6A-2P User Handbook
This handbook is for use with the following product:
Redbox RB-DDA6A-2P 6 Way Stereo AES/EBU Digital Distribution Amplier with Dual Power Supplies
©Sonifex Ltd, 2012
All Rights Reserved
Revision 1.02, August 2012
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel: [phone]
Fax: [phone]
Email: [email protected].uk
Website: http://www.sonifex.co.uk
Information in this document is subject to change without notice and does not represent a commitment on the part of
the vendor. Sonifex Ltd shall not be liable for any loss or damage whatsoever arising from the use of information or any
error contained in this manual.
No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying, recording, information storage and retrieval systems, for any purpose other than the purchaser’s
personal use, without the express written permission of Sonifex Ltd. Unless otherwise noted, all names of companies,
products and persons contained herein are part of a completely ctitious adaptation and are designed solely to
document the use of Sonifex product.
RB-DDA6A-2P USER HANDBOOK
RB-DDA6A-2P USER HANDBOOK

Redbox RB-DDA6A-2P User Handbook c
CONTENTS
CONTENTS
Warranty i
Warranty and Liability i
Unpacking the RB-DDA6A-2P iii
Returning the Warranty Card iii
Safety Information iv
Safety of Mains Operated Equipment iv
Voltage Setting Checks iv
Fuse Rating iv
Power Cable and Connection iv
Ordering the Correct Mains Lead v
Installation Information v
Atmosphere v
Electromagnetic Radiation v
Fitting Redboxes v
WEEE & RoHS Directives - Sonifex Statement vi
RB-DDA6A-2P 6 Way Stereo AES/EBU Digital Distribution
Amplier With Dual Power Supplies 1
Introduction 1
System Block Diagram 2
Rear Panel Connections and Operations 2
AES/EBU Input 3
AES/EBU Outputs 3
Alarm Connector 3
Technical Specication 4

dRedbox RB-DDA6A-2P User Handbook
FIGURES
FIGURES
Figures
Fig A: Packing List. iii
Fig B: Power Connections. iv
Fig C: Mains Lead Table. v
Fig D: RB-RK3 Large Redbox Rear Rack-mount Kit. v
Fig 1-1: RB-DDA6A-2P Front Panel. 1
Fig 1-2: RB-DDA6A-2P System Block Diagram. 2
Fig 1-3: RB-DDA6A-2P Rear Panel. 2
Fig 1-4: RB-DDA6A-2P Alarm Connector Diagram. 3

Redbox RB-DDA6A-2P User Handbook i
Warranty
Warranty and Liability
Important: the purchaser is advised to read this clause
(a) The Company agrees to repair or (at its discretion) replace Goods which are found to
be defective (fair wear and tear excepted) and which are returned to the Company
within 12 months of the date of despatch provided that each of the following
are satised:
(i) notication of any defect is given to the Company immediately upon its
becoming apparent to the Purchaser;
(ii) the Goods have only been operated under normal operating conditions and
have only been subject to normal use (and in particular the Goods must have
been correctly connected and must not have been subject to high voltage or
to ionising radiation and must not have been used contrary to the Company’s
technical recommendations);
(iii) the Goods are returned to the Company’s premises at the Purchaser’s expense;
(iv) any Goods or parts of Goods replaced shall become the property of
the Company;
(v) no work whatsoever (other than normal and proper maintenance) has been
carried out to the Goods or any part of the Goods without the Company’s prior
written consent;
(vi) the defect has not arisen from a design made, furnished or specied by
the Purchaser;
(vii) the Goods have been assembled or incorporated into other goods only in
accordance with any instructions issued by the Company;
(viii) the defect has not arisen from a design modied by the Purchaser;
(ix) the defect has not arisen from an item manufactured by a person other than
the Company.
In respect of any item manufactured by a person other than the Company, the Purchaser
shall only be entitled to the benet of any warranty or guarantee provided by such
manufacturer to the Company.
(b) In respect of computer software supplied by the Company the Company does not
warrant that the use of the software will be uninterrupted or error free.
WARRANTY
WARRANTY

ii Redbox RB-DDA6A-2P User Handbook
(c) The Company accepts liability:
(i) for death or personal injury to the extent that it results from the negligence of
the Company, its employees (whilst in the course of their employment) or its
agents (in the course of the agency);
(ii) for any breach by the Company of any statutory undertaking as to title, quiet
possession and freedom from encumbrance.
(d) Subject to conditions (a) and (c) from the time of despatch of the Goods from the
Company’s premises the Purchaser shall be responsible for any defect in the Goods
or loss, damage, nuisance or interference whatsoever consequential economic or
otherwise or wastage of material resulting from or caused by or to the Goods. In
particular the Company shall not be liable for any loss of prots or other economic
losses. The Company accordingly excludes all liability for the same.
(e) At the request and expense of the Purchaser the Company will test the Goods to
ascertain performance levels and provide a report of the results of that test. The
report will be accurate at the time of the test, to the best of the belief and knowledge
of the Company, and the Company accepts no liability in respect of its accuracy
beyond that set out in Condition (a).
(f) Subject to Condition (e) no representation, condition, warranty or other term,
express or implied (by statute or otherwise) is given by the Company that the Goods
are of any particular quality or standard or will enable the Purchaser to attain any
particular performance or result, or will be suitable for any particular purpose or use
under specic conditions or will provide any particular capacity, notwithstanding
that the requirement for such performance, result or capacity or that such particular
purpose or conditions may have been known (or ought to have been known) to the
Company, its employees or agents.
(g) (i) To the extent that the Company is held legally liable to the Purchaser for any
single breach of contract, tort, representation or other act or default, the
Company’s liability for the same shall not exceed the Price of the Goods.
(ii) The restriction of liability in Condition (g)(i) shall not apply to any liability
accepted by the Seller in Condition (c).
(h) Where the Goods are sold under a consumer transaction (as dened by the
Consumer Transactions (Restrictions on Statements) Order 1976) the statutory
rights of the Purchaser are not aected by these Conditions of Sale.
WARRANTY
WARRANTY

Redbox RB-DDA6A-2P User Handbook iii
Unpacking the RB-DDA6A-2P
The RB-DDA6A-2P are shipped with the following equipment. Please check your packaging
to ensure that you have all of the items below. If anything is missing, please contact the
supplier of your equipment immediately.
Item Quantity
RB-DDA6A-2P 1
IEC Mains lead tted with moulded mains plug 1
Handbook and warranty card 1
Fig A: Packing List.
Each RB-DDA6A-2P is shipped in protective packaging and should be inspected for
damage before use. Where an item is found to have transit damage, notify the carrier
immediately with all the relevant details of the shipment. Packing materials should be kept
for inspection and also for if the product needs to be returned.
Returning the Warranty Card
In order to register the date of purchase so that we can keep you informed of any design
improvements or modications, it is important to complete the warranty registration
document that is enclosed and return it to Sonifex Ltd in the UK.
For your own records you should write down the serial number (which can be found on the
rear of the RB-DDA6A-2P).
Serial Number ………………………………………
WARRANTY
WARRANTY

iv Redbox RB-DDA6A-2P User Handbook
Safety Information
Safety of Mains Operated Equipment
This equipment has been designed to meet the safety regulations currently
advised in the country of purchase and it conforms to the safety regulations
specied by use of the CE Mark.
Warning : There are no user serviceable parts inside the equipment. If you should ever
need to look inside the unit, always disconnect the mains supply before removing the
equipment covers.
Voltage Setting Checks
Ensure that the machine operating voltage is correct for your mains power supply by
checking the box in which your Redbox was supplied. The voltage is shown on the box
label. The available voltage settings are 115V, or 230V. Please note that all Redboxes are
either switchable between 115V and 230V, or have a universal power supply.
Fuse Rating
The RB-DDA6A-2P are supplied with a single fuse in the live conducting path of the mains
power input. For reasons of safety it is important that the correct rating and type of fuse is
used. Incorrectly rated fuses could present a possible re hazard, under equipment fault
conditions. The fuse rating for the RB-DDA6A-2P is:
230 or 115 V operation - 1A 5 x 20mm SB
The active fuse is tted on the outside rear panel of the unit.
Power Cable and Connection
An IEC power connector is supplied with the RB-DDA6A-2P which has a moulded plug
attached – this is a legal requirement. If no moulded plug has been supplied with your RB-
DDA6A-2P, please contact your supplier, because an IEC connector is always supplied from
the Sonifex factory.
If for any reason, you need to use the RB-DDA6A-2P with a dierent power cable, you
should use the following wiring guidelines.
Wire Colour Connection
Green, or green and yellow Earth (E)
Blue, or Black Neutral (N)
Brown, or Red Live (L)
Fig B: Power Connections.
Connect the equipment in accordance with the connection details and before applying
power to the unit, check that the machine has the correct operating voltage for your mains
power supply.
Important Note : The terminal marked on the rear panel must be earthed.
SAFETY INFORMATION
SAFETY INFORMATION

Redbox RB-DDA6A-2P User Handbook v
Ordering the Correct Mains Lead
When ordering a Redbox from Sonifex, it is helpful if you can specify your required
operating voltage and mains lead. After the product code add:
UK, for 230V, UK 3 pin to IEC lead
EC, for 230V, European Schuko 2 pin to IEC lead
US, for 115V, 3 pin to IEC lead
AU for 230V, Australasian 3 pin to IEC lead
Fig C: Mains Lead Table.
E.g. order RB-DA6P UK for a UK IEC lead to be supplied.
Installation Information
Atmosphere
The units should be installed in an area that is not subject to excessive temperature
variation (<0°C, >50°C), moisture, dust or vibration.
Electromagnetic Radiation
The cover is connected to earth by means of the xing screws. It is essential to maintain
this earth ground connection to ensure a safe operating environment and provide
electromagnetic shielding.
Fitting Redboxes
Redboxes can be xed to the underside of a mixing desk, or other surfaces using 4.2mm
holes in the sides and xed with 2 x M4 screws or 2 x No. 6 countersink wood screws.
They can also be rack-mounted, with either the front, or rear of the Redbox positioned at
the front of the rack:
Rear Mounting The RB-DDA6A-2P: The RB-RK3 1U rear panel rack kit can be used for
large Redboxes such as the RB-DDA-2P.
Fig D: RB-RK3 Large Redbox Rear Rack-mount Kit.
Note: When tting the rear-mounting rack-kits, a notch has been left on the inside of
the right-hand rack-piece for the mains cable to pass through. Make sure that the mains
cable has been put through the notch before attaching the right hand rack-piece.
SAFETY INFORMATION
SAFETY INFORMATION

vi Redbox RB-DDA6A-2P User Handbook
WEEE & ROHS INFORMATION
WEEE & ROHS INFORMATION
WEEE & RoHS Directives - Sonifex Statement
The Waste Electrical and Electronic Equipment (WEEE) Directive was agreed
on 13 February 2003, along with the related Directive 2002/95/EC on
Restrictions of the use of certain Hazardous Substances in electrical and
electronic equipment (RoHS).
The Waste Electrical and Electronic Equipment Directive (WEEE) aims to minimise the
impacts of electrical and electronic equipment on the environment during their life times
and when they become waste. It applies to a huge spectrum of products. It encourages
and sets criteria for the collection, treatment, recycling and recovery of waste electrical
and electronic equipment. All products manufactured by Sonifex Ltd have the WEEE
directive label placed on the case. It gives a contact for individuals who are unsure about
the correct procedure when the product has reached its “end of use”.
Sonifex Ltd will be happy to give you information about local organisations that can
reprocess the products, or alternatively all products that have reached “end of use” can be
returned to Sonifex and will be reprocessed correctly free of charge.
Sonifex Ltd has phased out the use of certain hazardous substances identied in the
European Union’s Restriction of Hazardous Substances (RoHS) directive. The RoHS
directive limits the use of certain hazardous substances currently used in EEE manufacture,
including lead, mercury, cadmium, hexavalent chromium, and halide-containing
compounds PBB (polybrominated biphenyl) and PBDE (polybrominated diphenyl ether).
Elimination of these substances will result in more environmentally friendly recycling
of electronic equipment. For the products which Sonifex manufacture, the main area
where products were aected was in the use of lead for manufacturing and assembling
electronics circuit boards.
Sonifex Ltd practices lead-free (LF) manufacturing processes. LF solder is used on the
surface-mount PCB manufacturing processes and for hand soldering. The printed circuit
boards (PCBs) used are either gold plated, or immersion tin plated, both of which use no
lead. Historically the PCBs were hot air solder levelled (HASL) PCBs which used tin/lead
based solder.
The manufacturing processes include the assembly of purchased components from
various sources. Product is oered as RoHS compliant, or LF, only after sucient evidence
is received from the component manufacturers that their components are RoHS compliant.
Sonifex Ltd relies solely on the distributor, or manufacturer, of the components for
identication of RoHS compliance. Thus whilst every eort is made to ensure compliance,
Sonifex Ltd makes no warranty, or certication, or declaration of compliance concerning
said components.
Sonifex Ltd denes “Lead Free” as pertaining to any product, which has been manufactured
by Sonifex Ltd using components which have been declared by the manufacturers as
“Lead Free”. All statements by Sonifex Ltd of RoHS compliance are based on component
manufacturer documentation.

Redbox RB-DDA6A-2P User Handbook 1
INTRODUCTION
INTRODUCTION 1
RB-DDA6A-2P 6 Way Stereo AES/EBU Digital Distribution
Amplier With Dual Power Supplies
Introduction
Fig 1-1: RB-DDA6A-2P Front Panel.
The RB-DDA6A-2P digital distribution amplier is used for distributing digital audio data
in AES/EBU format, repeating both the audio data and the status information of the input
whilst re-normalising to standard digital audio levels.
It has a single XLR-3 female AES/EBU audio input which is distributed to 6 XLR-3 male AES/
EBU outputs.
Applications include distributing audio from a digital mixing desk to multiple digital
recorders, or feeding multiple studios with an output from a DAT machine.
It can accept input sample rates in the range of 30kHz - 100kHz, and bit rates of 16, 20 and
24 bit. So, it can be used for standard CD signal distribution at 16 bit 44.1kHz, as well as for
high quality 24 bit 96kHz recording.
The unit provides redundancy protection by using two power supply units that can be
supplied from separate mains feeds. The unit automatically load shares between the two
supplies so that if either supply should fail the unit will continue to work correctly. If both
supplies fail the input is connected directly to output 1.
The condition of the two supplies is indicated on the front panel by two red LEDs which
illuminate to indicate the correct function of the supply. On the alarm output connector
there is a changeover relay to indicate the status of each supply. This is normally closed to
indicate power fail and once the supply is working correctly the relay activates to make a
normally open contact.
Power Indicator
LEDs

2Redbox RB-DDA6A-2P User Handbook
INTRODUCTION
INTRODUCTION
1
System Block Diagram
Fig 1-2: RB-DDA6A-2P System Block Diagram.
Rear Panel Connections and Operations
Fig 1-3: RB-DDA6A-2P Rear panel.
Digital Audio
Driver
Digital Audio
Driver
Digital Audio
Driver
Digital Audio
Driver
Digital Audio
Driver
Digital Audio
Driver
Digital
Audio
Receiver
PSU 1
Power
Supply
Monitor,
Indicator
And Alarm
Outputs
PSU 2
9-Way
D-Type
Socket
Alarm
Output
Power Off Connectivity
AES/EBU
Outputs
AES/EBU
Input
PSU Alarm
Output
Power
Supply 2
Power
Supply 1

Redbox RB-DDA6A-2P User Handbook 3
INTRODUCTION
INTRODUCTION 1
AES/EBU Input
The XLR 3 pin socket has an impedance of 110Ω. It has the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
AES/EBU Outputs
The XLR 3 pin sockets have an impedance of 110Ω. They have the following connections:
Pin 1: Screen
Pin 2: Phase
Pin 3: Non-phase
Alarm Connector
Pin 1: Power Supply 1 Common
Pin 2: Power Supply 1 Normally Open
Pin 3: Ground
Pin 4: Power Supply 2 Common
Pin 5: Power Supply 2 Normally Open
Pin 6: Power Supply 1 Normally Closed (indicates supply inactive)
Pin 7: Ground
Pin 8: Ground
Pin 9: Power Supply 2 Normally Closed (indicates supply inactive)
Fig 1-4: RB-DDA6A-2P Alarm Connector Diagram.
CommonN/O CommonN/O
N/C N/C
PSU 2PSU 1
51
96

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TECHNICAL SPECIFICATION
TECHNICAL SPECIFICATION
2
Technical Specication
Audio Specications
Input Impedance: 110Ω ± 20% balanced
Output Impedance: 110Ω ± 20% balanced
Sample Freq Range: 30-100kHz (i.e. including 32kHz, 44.1kHz, 48kHz, 64kHz,
88.2kHz and 96kHz)
Signal Level: 2V/7V peak to peak min/max
Connections
Audio Input: 1 x AES/EBU XLR 3 pin female (balanced)
Audio Outputs: 6 x AES/EBU XLR 3 pin male (balanced)
Alarm Outputs: 2 x Relay output indicators on 1 x 9 pin D-Type socket
Mains Inputs: 2 x Filtered IEC, 85-264V switchable, fused, 6W max
Fuse Ratings: 2 x Anti-surge fuse 1A 20 x 5mm
Equipment Type
RB-DDA6A-2P: 6 way AES/EBU stereo digital distribution amplier with
dual power supplies
Physical Specications
Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed): 58.5cm (W) x 22.5cm (D) x 7cm (H)
23” (W) x 8.9” (D) x 2.8” (H)
Weight: Nett: 1.5kg Gross: 2.0kg
Nett: 3.3lbs Gross: 4.4lbs

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NOTES
NOTES

www.sonifex.co.uk
t:[phone]
f:[phone]
[email protected]o.uk