Sonifex Redbox RB-VHDMA8, Redbox RB-VHCMA4, Redbox RB-VHEMA8, Redbox RB-VHCMD16 User Handbook Manual

Redbox Embedders
& De-Embedders

User Handbook

RB-VHDMA8 3G/HD/SD-SDI De-Embedder, 8 Channel

Analogue Outputs

RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue
Inputs

RB-VHCMA4 3G/HD/SD-SDI Embedder & De-Embedder,
4 Channel Analogue I/O

RB-VHCMD16 3G/HD/SD-SDI Embedder & De-Embedder,
16 Channel Digital I/O

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Redbox Embedder/De-embedder User Handbook

REDBOX EMBEDDER/DE-EMBEDDER USER HANDBOOK

This handbook is for use with the following products:

RB-VHDMA8 3G/HD/SD-SDI De-Embedder, 8 Channel Analogue Outputs
RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue Inputs
RB-VHCMA4 3G/HD/SD-SDI Embedder & De-Embedder, 4 Channel Analogue I/O
RB-VHCMD16 3G/HD/SD-SDI Embedder & De-Embedder, 16 Channel Digital I/O

©Sonifex Ltd, 2009-2013
All Rights Reserved
Revision V1.04, May 2013
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel: [phone]
Fax: [phone]
Email: [e-mail]
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.

REDBOX EMBEDDER/
DEEMBEDDER USER HANDBOOK

Made in the UK by

Redbox Embedder/De-embedder User Handbook

c

CONTENTS

CONTENTS

Warranty i

Warranty and Liability i
Unpacking the Redbox Embedder/De-embedder 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

1 Redbox Audio Embedders & De-Embedders 1

RB-VHDMA8 3G/HD/SD-SDI De-Embedder, 8 Channel Analogue Outputs 1
RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue Inputs 1
RB-VHCMA4 3G/HD/SD-SDI Embedder & De-Embedder 4 Channel
Analogue I/O 2
RB-VHCMD16 3G/HD/SD-SDI Embedder & De-Embedder 16 Channel
Digital I/O 2
Embedding and De-Embedding Overview 3

2 RB-VHDMA8 3G/HD/SD-SDI De-Embedder, 8 Channel Analogue Outputs 4

System Block Diagram 4
Front Panel Indicators & Controls 5
Rear Panel Connections 6
Remote Control 6
Audio Connections 8

Analogue Audio Outputs 8
Audio Output Gain Adjustment 9
RB-VHDMA8 D-type Pin-out 9

Control Modes 10

Bank Mode 10
Channel Mode 10
Changing Control Mode 10

De-Embedding 10

Bank Mode 10
Channel Mode 11

Deleting Audio Groups 11

Technical Specication For RB-VHDMA8 12

Remote Interface Commands & Responses Protocol 13

Command Format 13

Remote Control Commands 13

3 RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue Inputs 15

System Block Diagram 15
Front Panel Indicators & Controls 16
Rear Panel Connections 17
Remote Control 17

RS232 Remote Control 17
Ethernet 18
SDI Input 19
SDI Outputs 19

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Redbox Embedder/De-embedder User Handbook

CONTENTS

CONTENTS

Audio Connections 19

Analogue Audio Inputs 19
Audio Input Gain Adjustment 19
RB-VHEMA8 D-type Pin-out 20

Control Modes 20

Bank Mode 20
Channel Mode 20
Changing Control Mode 20

Embedding 21

Bank Mode 21
Channel Mode 21
SD & 24-bit Audio 22

Deleting Audio Groups 22

Technical Specication For RB-VHEMA8 23

Remote Interface Commands & Responses Protocol 24

Command Format 24

Remote Control Commands 24

4 RB-VHCMA4 3G/HD/SD-SDI Embedder & De-Embedder 4 Channel
Analogue I/O 27

System Block Diagram 27
Front Panel Indicators & Controls 28
Rear Panel Connections 30
Remote Control 30
Audio Connections 32

Analogue Audio Inputs 32
Analogue Audio Outputs 33
Audio Input and Output Gain Adjustment 33
RB-VHCMA4 D-type Pin-out 34

Control Modes 34

Bank Mode 34
Channel Mode 34
Changing Control Mode 35

Embedding 35

Bank Mode 35
Channel Mode 35
SD & 24-bit Audio 36

De-Embedding 36

Bank Mode 36
Channel Mode 37

Deleting Audio Groups 37

Technical Specication For RB-VHCMA4 38

Remote Interface Commands & Responses Protocol 39

Command Format 39

Remote Control Commands 39

5 RB-VHCMD16 3G/HD/SD-SDI Embedder & De-Embedder
16 Channel Digital I/O 43

System Block Diagram 43
Front Panel Indicators & Controls 44
Rear Panel Connections 46
Remote Control 46
Audio Connections 48

Digital Audio Inputs & Outputs 48
Audio Input and Output Gain Adjustment 49
Automatic Dolby Detection & SMPTE-337M Support 49
RB-VHCMD16 D-type Pin-out 49

Redbox Embedder/De-embedder User Handbook

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CONTENTS

CONTENTS

Control Modes 50

Bank Mode 50
Channel Mode 50
Changing Control Mode 50

Embedding 51

Bank Mode 51
Channel Mode 51
SD & 24-bit Audio 52

De-Embedding 52

Bank Mode 52
Channel Mode 53

Deleting Audio Groups 53

Technical Specication For RB-VHCMD16 54

Remote Interface Commands & Responses Protocol 55

Command Format 55

Remote Control Commands 55

6 Common Specications For RB-VHEMA8, RB-VHDMA8, 59
RB-VHCMA4 & RB-VHCMD16 59

7 SCi 61

System Page 61
De-Embed Page 63
Embed Page 64
Audio Inputs Page 65
Audio Outputs Page 66
Delay Page 67

8 Glossary 68

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Redbox Embedder/De-embedder 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 2-1: RB-VHDMA8 System Block Diagram 4

Fig 2-2: RB-VHDMA8 Front Panel 5

Fig 2-3: RB-VHDMA8 Rear Panel 6

Fig 3-1: RB-VHEMA8 Block Diagram 15

Fig 3-2: RB-VHEMA8 Front Panel 16

Fig 3-3: RB-VHEMA8 Rear Panel 17

Fig 4-1: RB-VHCMA4 System Block Diagram 27

Fig 4-2: RB-VHCMA4 Front Panel 28

Fig 4-3: RB-VHCMA4 Front Panel 30

Fig 5-1: RB-VHCMD16 System Block Diagram 43

Fig 5-2: RB-VHCMD16 Front Panel 44

Fig 5-3: RB-VHCMD16 Rear Panel 46

Fig 7-1: SCi System Screen 61

Fig 7-2: Network Settings 62

Fig 7-3: SCi De-Embed Screen. 63

Fig 7-4: SCi Embed Screen 64

Fig 7-5: SCi Audio Inputs Screen 65

Fig 7-6: SCi Audio Outputs Screen 66

Fig 7-7: SCi Delay Screen 67

Redbox Embedder/De-embedder User Handbook

i

WARRANTY

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

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Redbox Embedder/De-embedder User Handbook

WARRANTY

(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

Redbox Embedder/De-embedder User Handbook

iii

WARRANTY

Unpacking the Redbox Embedder/De-embedder

The Redbox Embedder/De-embedder is 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 Redbox Embedder/De-embedder

Redbox Embedder/De-embedder 1

IEC Mains lead tted with moulded mains plug 1

Handbook and warranty card 1

Fig A: Packing List

Each Redbox Embedder/De-embedder 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 Redbox Embedder/De-embedder.

Serial Number ………………………………………

WARRANTY

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Redbox Embedder/De-embedder User Handbook

SAFETY INFORMATION

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. This product is continuously rated 85 - 264 VAC, 47 - 63Hz. Please note that all
Redboxes are either switchable between 115V and 230V, or have a universal power supply.

Fuse Rating

The Redbox Embedder/De-embedder is 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 Redbox Embedder/De-embedder is:

Continuously rated 85 - 264 VAC, 47 - 63Hz - 2A, 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 Redbox Embedder/De-embedder which has a
moulded plug attached – this is a legal requirement. If no moulded plug has been supplied
with your Redbox Embedder/De-embedder, please contact your supplier, because an IEC
connector is always supplied from the Sonifex factory.

If for any reason, you need to use the Redbox Embedder/De-embedder 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

Redbox Embedder/De-embedder User Handbook

v

SAFETY INFORMATION

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 Redbox Embedder/De-embedder 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 Redbox Embedder/De-embedder: The RB-RK3 1U rear panel rack kit
can be used for large Redboxes such as the Redbox Embedder/De-embedder.

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

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Redbox Embedder/De-embedder User Handbook

SAFETY & INSTALLATION 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.

SAFETY & INSTALLATION
INFORMATION

Redbox Embedder/De-embedder User Handbook

1

INTRODUCTION

1

INTRODUCTIONINTRODUCTION

1 Redbox Audio Embedders & De-Embedders

The Redbox range of audio embedders and de-embedders use the latest
technology to offer embedding and de-embedding for analogue and digital audio
signals into and out of all 3G, HD and SD-SDI video signals, respectively. There
are currently 4 products in the range.

RB-VHDMA8 3G/HD/SD-SDI De-Embedder, 8 Channel Analogue Outputs

The RB-VHDMA8 is an 8 channel analogue de-embedder contained in a single 19-inch
rack unit. The unit can selectively de-embed up to 8 channels within any audio group of
an SDI video signal, to any of the analogue outputs. After which, the video becomes two
independent paths, where the audio groups can be selectively deleted or passed through
and then sent to the re-clocked SDI outputs.

The de-embedding channel routing is controlled via the front panel buttons and
indicators. There is also LED indication for SDI input status and audio group presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
HD and SD standards from NTSC and PAL up to 1080p 60Hz.

There is independent level control for each analogue output channel, which can be
adjusted from -24dB through to +24dB in 0.5dB steps.

The analogue outputs have three full-scale gain settings which can be set via jumpers
inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu reference FSD. The
balanced and unbalanced output connections are paralleled, allowing one type to be used
per output.

RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel Analogue Inputs

The RB-VHEMA8 is an 8 channel analogue embedder contained in a single 19-inch rack
unit. The unit can selectively embed up to 8 analogue channels onto either of the two
output video paths which are sent to the re-clocked SDI outputs. It also has the capability
to allow audio groups to be deleted or passed through on each of the two video paths
prior to the embedding process.

The embedding channel routing is controlled via the front panel buttons and indicators.
There is also LED indication for SDI input status and audio group presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
SD and HD standards from NTSC and PAL up to 1080p 60Hz.

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Redbox Embedder/De-embedder User Handbook

INTRODUCTION

1

INTRODUCTION

There is independent level control for each analogue input channel, which can be adjusted
from -24dB through to +24dB in 0.5dB steps.

The analogue inputs have three full-scale gain settings which can be set via jumpers
situated inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu for FSD. The
balanced and unbalanced input connections are paralleled, allowing one type to be used
per input.

RB-VHCMA4 3G/HD/SD-SDI Embedder & De-Embedder 4 Channel
Analogue I/O

The RB-VHCMA4 is a 4-channel analogue de-embedder and a 4-channel analogue
embedder combined into a single 19-inch rack unit. The unit can selectively de-embed
up to 4 channels within any audio group of an SDI video signal, to any of the analogue
outputs. After which, the video becomes two independent paths where the audio groups
can be selectively deleted or passed through. The unit then embeds any of the 4 analogue
input channels to available groups within each of the two video paths, which are then sent
to the re-clocked SDI outputs.

The de-embedding and embedding channel routing is controlled via the front panel
buttons and indicators. There is also LED indication for SDI input status and audio group
presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
SD and HD standards from NTSC and PAL up to 1080p 60Hz.

There is independent level control for each analogue input and output channel, which can
be adjusted from -24dB through to +24dB in 0.5dB steps.

The analogue outputs have three full-scale gain settings which can be set via jumpers
situated inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu reference
FSD Similarly, the analogue inputs full-scale gain settings can be set via jumpers inside
the unit. Allowable settings are +12dBu, +18dBu and +24dBu for FSD. The balanced and
unbalanced connections are paralleled, allowing one type to be used per input or output.

RB-VHCMD16 3G/HD/SD-SDI Embedder & De-Embedder 16 Channel
Digital I/O

The RB-VHCMD16 is a 16-channel de-embedder and 16 channel embedder combined into
a single 19-inch rack unit. The unit can selectively de-embed any channel within any audio
group of an SDI video signal, to any of the digital outputs. After which, the video becomes
two independent paths where the audio groups can be selectively deleted or passed
through. The unit then embeds any of the digital input channels to available groups within
each of the two video paths, which are then sent to the re-clocked SDI outputs.

Redbox Embedder/De-embedder User Handbook

3

INTRODUCTION

1

INTRODUCTION

The de-embedding and embedding channel routing is controlled via the front panel
buttons and indicators. There is also LED indication for SDI input status and audio group
presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
HD and SD standards from NTSC and PAL up to 1080p 60Hz.

Each digital input is normally sample rate converted to 48kHz before embedding, so that
it is synchronous to the video input. Though sample rate conversion can be bypassed on a
per input basis allowing SMPTE-337M data to be embedded. All digital outputs are output
at 48kHz, synchronous to the video input.

There is independent level control for each digital input and output channel, which can be
adjusted from -24dB through to +24dB in 0.5dB steps.

The digital inputs and outputs are unbalanced AES specication, and can be connected
through either BNC or D-Type connectors. These I/O connections are paralleled, allowing
one type to be used per input or output.

Embedding and De-Embedding Overview

Audio embedding is the process of taking one or more audio signals, formatting them into
packets and then placing them into the ancillary or blanking space of a video signal. Audio
de-embedding is the process of retrieving this audio data from the video signal but not
necessarily removing it. These two processes are standardised by two SMPTE documents,
SMPTE-272M for SD-SDI and SMPTE-299M for HD-SDI and 3G-SDI.

Both of these standards allow for the embedding of 16 channels of 24-bit, 48kHz audio.
Which are divided down into 4 groups of 4 channels.

Each standard consists of a control packet and an audio data packet. The control packets
hold certain control information about the audio to aid in the de-embedding process or
any other receiving equipment. There is one control packet per group, these packets are
optional for SD. The control packet is normally placed in the horizontal blanking period
once per eld or frame. The audio data packets contain the actual audio sample data.
There are considerable dierences between SD and HD, the main ones being that SD data
packets contain only 20-bit data and are of variable length while the HD data packets
contain 24-bit data and are of xed length. The HD packets also provide an error correction
and detection method. The SD standard consists of a further packet, the extended data
packet. These packets contain the 4 least signicant bits of the audio samples to provide
full 24-bit audio.

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Redbox Embedder/De-embedder User Handbook

RBVHDMA8

RBVHDMA8

2

2 RB-VHDMA8 3G/HD/SD-SDI De-Embedder, 8 Channel
Analogue Outputs

The RB-VHDMA8 is an 8 channel analogue de-embedder contained in a single 19-inch
rack unit. The unit can selectively de-embed up to 8 channels within any audio group of
an SDI video signal, to any of the analogue outputs. After which, the video becomes two
independent paths, where the audio groups can be selectively deleted or passed through
and then sent to the re-clocked SDI outputs.

The de-embedding channel routing is controlled via the front panel buttons and
indicators. There is also LED indication for SDI input status and audio group presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
HD and SD standards from NTSC and PAL up to 1080p 60Hz.

There is independent level control for each analogue output channel, which can be
adjusted from -24dB through to +24dB in 0.5dB steps.

The analogue outputs have three full-scale gain settings which can be set via jumpers
inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu reference FSD. The
balanced and unbalanced output connections are paralleled, allowing one type to be used
per output.

System Block Diagram

Fig 2-1: RB-VHDMA8 System Block Diagram

Analogue

Outputs

Balanced

Unbalanced

Bank 1

DACs

Bank 2

DACs

Channel

Routing

8 Channel

Level

Control

SDI

Input

SDI
Output 2

SDI

Receiver

Audio

De-embedder

SDI

Transmitter

Audio
Pass /

Delete

EQ CD

Audio
Group

Detect

SDI

Transmitter

Audio
Pass /
Delete

SDI
Output 1

CD

4

4

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Front Panel Indicators & Controls

Fig 2-2: RB-VHDMA8 Front Panel

Power LED

The POWER LED illuminates whilst internal power is present within the unit. If this indicator
is not on, the most likely reason is simply the absence of mains power, but under fault
conditions it may also indicate a ruptured mains fuse or a problem with the internal power
supply module.

Reset Button

In the unlikely event that the unit fails to respond, press the reset button to reboot the unit.

Bank

The BANK button and its indicators are used to select the audio output bank when
controlling the de-embedding channel routing. The button LED is used show whether the
bank is enabled. To enable or disable the bank, press and hold the BANK button for two
seconds until the bank number indicator blinks. When lit green it is enabled and when lit
red it is disabled. When the bank is disabled, all audio outputs are muted.

Bank Channel

The BANK CHANNEL button and its indicators are only used when the unit is operating in
Channel mode and are used to select the audio output bank channel when controlling the
de-embedding channel routing. The button LED is used to show whether the channel is
enabled. To enable or disable the channel, press and hold the BANK CHANNEL button for
two seconds until the channel number indicator blinks. When lit green it is enabled and
when it is lit red it is disabled. When the channel is disabled, the audio output is muted.
The channel will also be muted if the bank is disabled, even if the channel is enabled.

Group

The GROUP button and its indicators are used to select the group audio number within the
video signal to de-embed and send to analogue outputs in the currently selected bank.

Group Channel

The GROUP CHANNEL button and its indicators are used to select the channel number
within the currently selected group to de-embed and send to the analogue output in the
currently selected bank and bank channel. This button is only used when operating in
Channel mode.

Power

LED

BANK

Button

BANK

Channel

GROUP

Button

GROUP

Channel

STATUS

Button

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Status

This button is used to used to enter and exit the group deletion mode, which is discussed
later.

Audio Group Detection

The four audio group indicators associated with the STATUS button, display the audio
groups which are present in the SDI video signal. If an audio group is present, its relevant
indicator will be lit. This is useful to determine which groups are available for de­embedding and/or deleting.

Lock Indicator

The lock indicator is lit when the the SDI receiver has detected and locked to the incoming
video format. If the input is disconnected or is intermittent then the lock indicator will stay
unlit.

Output Indicators

These two indicators are used to indicate which one of the two outputs are selected when
conguring audio packets for deletion.

Rear Panel Connections

Fig 2-3: RB-VHDMA8 Rear Panel

Mains Power

Power is applied via a standard three-pin IEC male socket. Mains voltages between 85V
and264V AC and frequencies between 47 and 63Hz are accepted without adjustment. A
2A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to ensure safety.

Remote Control

The unit can be controlled remotely either by serial RS-232 or Ethernet using the Sonifex
SCi software. Using remote control allows the user to monitor the status of the unit and
also set various options and settings not available via the front panel.

PowerRS232

Ethernet Fuse

De-embed Bank

Bal Outputs

Bank 1

Unbal

Outputs

Bank 2

Unbal

Outputs

SDIINSDI Outputs

1 and 2

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RS232 Remote Control

A 9-way female D-type connector carries a standard RS232 interface via which advanced
conguration options may be set and many functions may be remotely controlled. The pin
assignations are as follows:

Pin No. Function

1 Unused

6 Unused

2 Data transmit (TX)

7 Unused

3 Data receive (RX)

8 Unused

4 Unused

9 Unused

5 Ground

The RB-VHDMA8 will interface directly with personal computer serial ports at standard
RS232 signal levels using a straight-through cable. The default format is 19200 baud with 8
data bits, even parity and 1 stop bit. Sonifex SCi software, when installed on a suitable PC,
provides straightforward graphical access to all remote control and conguration options
via both RS232 and Ethernet interfaces. Alternatively, commands may be issued from any
text-based terminal program (e.g. Hyperterminal) or custom software may be developed
for specic requirements.

Ethernet

The Ethernet port is connected using a standard RJ-45 connector on the rear of the panel.
It is a 10/100Mbps link. The unit is shipped with DHCP enabled to allow the unit to be
plug and play if the users local area network has a DHCP server. If one is not available on
the network and the unit cannot retrieve a valid IP address after 45 seconds it will default
to a static address. This static address is set to 192.168.0.100 by default but can be altered
through SCi using the serial port connection. If DHCP is not required then this can also be
disabled through SCi using the serial port connection.

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The Network connectors pin assignations are as follows:

Network Connector (RJ-45)

Pin No. Function

1 Transmit Data (Positive)

2 Transmit Data (Negative)

3 Receive Data (Positive)

4 No connection

5 No connection

6 Receive Data (Negative)

7 No connection

8 No connection

SDI Input

The SDI input is connected using a single female BNC and has a 75Ω input impedance. It is
a triple rate SDI receiver with automatic input rate detection and equalisation. It supports
the full range of 3G, SD and HD standards from NTSC and PAL up to 1080p 60Hz. The status
of the input is displayed on the status LEDs on the front panel. When the SDI input rate
and format has been detected, the SDI lock indicator will be lit.

SDI Outputs

The two SDI outputs are connected using the two female BNC connectors on the rear
panel. They have a 75 Ω output impedance in accordance with the SMPTE standard
and are both re-clocked and independently buered. Each output can be congured
separately for group deletion settings.

Audio Connections

Analogue Audio Outputs

The RB-VHDMA8 has eight analogue outputs which are separated into two banks of
four channels. These can be connected using balanced connections through the D-type
connectors or unbalanced connections through BNC connectors, all are available on the
rear panel. The balanced analogue outputs can be wired unbalanced by connecting non­phase (-) pin to the ground pin for that output, and then connecting the audio signal to the
phase (+) pin.

The two output types are connected internally, so please ensure that only one type of
connection is used per output.

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Full Scale Setting

The analogue output full-scale settings, which determine the full-scale 0dBFS level for the
digital audio, are set internally via jumpers. They are factory set to +18dBu by default.

Full-scale Settings Jumper

JP1 JP2

+12dBu Not tted Not tted

+18dBu Fitted Not tted

+24dBu Fitted Fitted

Audio Output Gain Adjustment

The default audio output gain is unity. However, to accommodate lower or higher level
sources it is possible to introduce gain or attenuation on a per channel basis. Each audio
channel has an adjustable gain range from -24dBu to +24dBu in 0.5dB increments. This is
set using the remote Control ports. Once set, this value is stored and reloaded each time
the unit is powered on.

RB-VHDMA8 D-type Pin-out

Pin No. Function

De-Embed Bank 1

Function

De-Embed Bank 2

1 Channel 1+ Channel 1+

14 Channel 1- Channel 1-

2 Channel 1 Ground Channel 1 Ground

15 Channel 2+ Channel 2+

3 Channel 2- Channel 2-

16 Channel 2 Ground Channel 2 Ground

4 Channel 3+ Channel 3+

17 Channel 3- Channel 3-

5 Channel 3 Ground Channel 3 Ground

18 Channel 4+ Channel 4+

6 Channel 4- Channel 4-

19 Channel 4 Ground Channel 4 Ground

7 to 13 Do not connect Do not connect

20 to 25 Do not connect Do not connect

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Control Modes

There are two modes available to control the de-embedding channel routing process.
These are the BANK mode and the CHANNEL mode.

Bank Mode

In Bank mode, audio is routed on a per bank basis, so when controlling de-embedding a
group of audio is selected to be sent to a bank.

Channel Mode

In Channel mode, audio is routed on a per channel basis, this allows for maximum exibility
when de-embedding, allowing any channel within any group be sent to any channel of any
of the available audio output banks.

Changing Control Mode

To switch between Bank and Channel control modes, simultaneously press and hold
the GROUP CHANNEL and BANK CHANNEL buttons for 5 seconds. The mode will switch
after this time and the button can be released. Bank mode is in use when both the BANK
CHANNEL and GROUP CHANNEL button LEDs are not lit. Conversely, when Channel mode
is in use these two LEDs are lit.

When switching from Channel to Bank mode, all channel mappings are reset to default.
When switching from Bank to Channel mode, the channel mappings are retained to allow
for further modication.

De-Embedding

The unit is always de-embedding, automatically reading all the audio data contained in the
video signal as it appears to the de-embedding block. Using the front panel controls the
user can control which of these channels or groups within the video input are routed to the
analogue outputs.

If an SD video signal is being received and extended audio data is detected, then the unit
will automatically use this to reproduce full 24-bit audio data and no user intervention is
required.

Bank Mode

In bank mode, de-embedding is controlled on a per group basis. So whole groups are
selected to be output on a particular bank.

1 To de-embed a group of audio to a specic bank.

2 Select the output bank number, using the BANK button.

3 Select the group to de-embed using the GROUP button.

The BANK button LED will show whether the bank is enabled. To enable de-embedding to
this bank, press and hold the BANK button for two seconds, until the button turns green.
This indicates that de-embedding is enabled to this bank. To turn o de-embedding, then
hold the BANK button down until the button turns red. The bank number indicator will
blink to show that the change has been applied.

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In this mode, the channels of the group are mapped directly to the bank channels. For
example channel 1 in the selected group is de-embedded to channel 1 of the selected
bank. Channel 2 in the selected group is de-embedded to channel 2 of the selected
bank etc.

Cycling through the banks using the BANK button, allows the user to determine which
banks are currently enabled for de-embedding and will also show the source group for that
bank.

Channel Mode

In channel mode, de-embedding is controlled on a per channel basis. So individual
channels within a group are selected to be output on a particular channel within a bank.

To de-embed a group channel of audio to a specic bank channel.

1 Select the output bank number using the BANK button.

2 Select the output bank channel using the BANK CHANNEL button.

3 Select the group to de-embed using the GROUP button.

4 Select the group channel to de-embed using the GROUP CHANNEL button.

To enable de-embedding to this channel, both the BANK and BANK CHANNEL must be
enabled. This is indicated by the button LED being lit green. If either are red, then simply
enable them by holding down the relevant button for two seconds.

Cycling through the banks and bank channels using the BANK and BANK CHANNEL buttons
respectively, allows the user to determine which bank channels are currently enabled for
de-embedding and will also show the source for that bank channel.

Deleting Audio Groups

If the SDI video signal contains audio groups which require deleting, then these can be
deleted on a per output basis. For example if the video input contained all four audio
groups then it is possible to delete all groups on output 1 and only groups 1 and 2 on
output 2.

The unit will also delete any ancillary packets marked for deletion and realign the packets
to make maximum use of the available ancillary space.

To delete audio groups the unit is put into a special group deletion mode. To enter this
mode press and hold the STATUS button for 5 seconds. The front panel button indicators
will change so that only the GROUP, GROUP CHANNEL and STATUS buttons are available.
The GROUP button and indicators are used to select the group number, the GROUP
CHANNEL button is used to enable or disable deletion on this group and the STATUS
button is used to select the output. Once the desired settings have been set, then using
the same method to enter the group deletion mode will exit it. The new settings will be
applied as soon as the unit returns to its normal operating mode.

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Technical Specication For RB-VHDMA8

Front Panel Controls & Indicators

De-embed Bank Select: Bank 1 or 2

Bank Channel Select: Channels 1, 2, 3 or 4

Group Select: Groups 1, 2, 3 or 4

Group Channel Select: Group channels 1,2,3 or 4

Status: 1 x SDI input status LED
2 x SDI output LEDs
4 x Audio group status LEDs

Audio Specications

Max. Output Level: +24dBu (balanced)

Output Impedance: <50Ω (balanced)

Full Scale Settings: 12dBu, 18dBu or 24dBu ref FSD (jumper selectable)

Signal to Noise: Better than -106dB (RMS A-weighted at 24-bit, balanced)

Distortion and Noise: Better than -85dB THD+N at 1kHz (balanced)

De-embed Delay: 3G/HD/SD: 1.1 ms

Connections

Analogue Audio Outputs: 8 output channels via BNC (unbalanced) or D-type
socket (balanced)

Analogue Audio Connectors: 8 x BNC
2 x 25-way D-type

Power Supply: Universal ltered IEC, continuously rated 85-264VAC
@47-63Hz, fused, max 14W

Equipment Type

RB-VHDMA8 3G/HD/SD-SDI De-embedder, 8 channel analogue outputs

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Remote Interface Commands & Responses Protocol

Sonifex SCi remote control software handles all communication with the unit via a
convenient graphical user interface. However, this protocol is provided for those users who
wish to develop their own remote control applications or communicate with the unit using
a text-based terminal program.

Command Format

Commands are case-insensitive and should be terminated in a carriage return character, a
line feed character may be sent but it will be ignored. Further commands sent before the
rst command is acknowledged will be ignored. Responses will be CR & LF terminated.

Remote Control Commands

Command Description Response

COM:b,d,p,s Serial Port Settings

b is the baud rate (9600, 19200,
38400, 57600 and 115200)
d is the data bits (7 or 8)
p is the parity (N, O, E)
s is the stop bits (1 or 2)

ACK:

CTM:m Control Mode

m is the mode
0 = bank
1 = channel

ACK:

DEL:o,g,e Delete Audio Group

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = don’t delete
1 = delete

ACK:

DWN: Initiates a Firmware Update

DMC:b,c,e De-Embed Bank Channel Enable

This is only used when operating in
advanced mode
b is the bank (0 to 3)
c is the channel (0 to 3)
e is the option
0 = o
1 = on

ACK:

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Command Description Response

DMB:b,e De-Embed Bank Enable

b is the group (0 to 3)
e is the option
0 = o
1 = on

ACK:

DMR:b[,bc],g[,gc] De-Embed Route Control

b is the bank (0 to 3)
bc is the bank channel (0 to 3) – only
in channel mode
g is the group (0 to 3)
gc is the group channel (0 to 3) –
only in channel mode

ACK:

FPL:e Front Panel Lock

e is the enable option
0 = o
1 = on

ACK:

MAC: MAC Address

Returns the MAC address of the unit
in 12 hex characters.

MAC:XXXXXXXXXXXX

NET:x.x.x.x,y.y.y.y,z.z.z.z Network Address Settings

x.x.x.x is a valid IP address
y.y.y.y is a valid subnet mask
z.z.z.z is a valid gateway address

ACK:

NOP:o,v Network Options

o is the option number
0 = DHCP
v is the option value
0 = o
1 = on

ACK:

OPG:b,c,g Output Gain

b is the bank number (0 or 1)
c is the channel (0-3)
g is the gain value 0 to 96
0 = -24dBu and 96 = +24dBu

ACK:

SRQ: Status Request

UID: Unit ID UID:RB-VHEMA8

VER: Version information

M1.m1.b1 is the Firmware version
M2.m2.b2 is the FPGA version

VER:M1.m1.b1, M2.m2.b2

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3 RB-VHEMA8 3G/HD/SD-SDI Embedder, 8 Channel
Analogue Inputs

The RB-VHEMA8 is an 8 channel analogue embedder contained in a single 19-inch rack
unit. The unit can selectively embed up to 8 analogue channels onto either of the two
output video paths which are sent to the re-clocked SDI outputs. It also has the capability
to allow audio groups to be deleted or passed through on each of the two video paths
prior to the embedding process.

The embedding channel routing is controlled via the front panel buttons and indicators.
There is also LED indication for SDI input status and audio group presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
SD and HD standards from NTSC and PAL up to 1080p 60Hz.

There is independent level control for each analogue input channel, which can be adjusted
from -24dB through to +24dB in 0.5dB steps.

The analogue inputs have three full-scale gain settings which can be set via jumpers
situated inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu for FSD. The
balanced and unbalanced input connections are paralleled, allowing one type to be used
per input.

System Block Diagram

Fig 3-1: RB-VHEMA8 Block Diagram

SDI

Input

SDI
Output 2

SDI

Receiver

Audio

Embedder

SDI

Transmitter

Audio
Pass /

Delete

EQ CD

Audio
Group

Detect

Audio

Embedder

SDI

Transmitter

Audio
Pass /
Delete

SDI
Output 1

CD

8 Channel

Level

Control

Bank 1

ADCs

Bank 2

ADCs

Channel

Routing

Analogue
Inputs

Balanced

Unbalanced

8

4

4

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Front Panel Indicators & Controls

Fig 3-2: RB-VHEMA8 Front Panel

Power LED

The POWER LED illuminates whilst internal power is present within the unit. If this indicator
is not on, the most likely reason is simply the absence of mains power, but under fault
conditions it may also indicate a ruptured mains fuse or a problem with the internal power
supply module.

Reset Button

In the unlikely event that the unit fails to respond, press the reset button to reboot the unit.

Bank

The BANK button and its indicators are used to select the audio input bank when
controlling the embedding channel routing.

Bank Channel

The BANK CHANNEL button and its indicators are only used when the unit is operating in
Channel mode and are used to select the audio input bank channel when controlling the
embedding channel routing.

Group

The GROUP button and its indicators are used to select the group number with which to
embed the analogue input channels to. The button LED is used show whether embedding
is enabled to the currently selected group. To enable or disable the embedding to a group,
press and hold the GROUP button for two seconds until the group number indicator blinks.
When lit green it is enabled and when it is lit red it is disabled. When the group is disabled,
no embedding is done to that group number.

Group Channel

The GROUP CHANNEL and its indicators are used to select the channel within the currently
selected group with which to embed the analogue input channel to. This button is only
used when operating in Channel mode. The button LED is used show whether the channel
is enabled for embedding. To enable or disable the channel, press and hold the GROUP
CHANNEL button for two seconds until the channel number indicator blinks. When lit
green it is enabled and when it is lit red it is disabled. When the channel is disabled, no
audio is embedded to that channel. The channel will also not be embedded if the group is
not enabled for embedding, even if the channel is enabled.

Status

This button is used to select the output number when controlling the embedding routing.
It is also used to enter and exit the group deletion mode.

Power

LED

BANK

Button

BANK

Channel

GROUP

Button

GROUP

Channel

STATUS

Button

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Audio Group Detection

The four audio group indicators associated with the STATUS button display the audio
groups present in the SDI input. If an audio group is present, its relevant indicator will be
lit. This is useful to determine which groups require deleting or which groups are available
for embedding.

Lock Indicator

The lock indicator is lit when the the SDI receiver has detected and locked to the incoming
video format. If the input is disconnected or is intermittent then the lock indicator will stay
unlit.

Output Indicators

These two indicators are used to indicate which one of the two outputs are selected when
conguring the embedding routing or when conguring audio packets for deletion.

Rear Panel Connections

Fig 3-3: RB-VHEMA8 Rear Panel

Mains Power

Power is applied via a standard three-pin IEC male socket. Mains voltages between 85V
and264V AC and frequencies between 47 and 63Hz are accepted without adjustment. A
2A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to ensure safety.

Remote Control

The unit can be controlled remotely either by serial RS-232 or Ethernet using the Sonifex
SCi software. Using remote control allows the user to monitor the status of the unit and
also set various options and settings not available via the front panel.

RS232 Remote Control

A 9-way female D-type connector carries a standard RS232 interface via which advanced
conguration options may be set and many functions may be remotely controlled. The pin
assignations are as follows:

Pin No. Function

1 Unused

6 Unused

2 Data transmit (TX)

7 Unused

PowerRS232

Ethernet Fuse

Embed Bank Bal

Inputs

Bank 1

Unbal Inputs

Bank 2

Unbal Inputs

SDI

IN

SDI Outputs

1 and 2

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3 Data receive (RX)

8 Unused

4 Unused

9 Unused

5 Ground

The RB-VHEMA8 will interface directly with personal computer serial ports at standard
RS232 signal levels using a straight-through cable. The default format is 19200 baud with 8
data bits, even parity and 1 stop bit. Sonifex SCi software, when installed on a suitable PC,
provides straightforward graphical access to all remote control and conguration options
via both RS232 and Ethernet interfaces. Alternatively, commands may be issued from any
text-based terminal program (e.g. Hyperterminal) or custom software may be developed
for specic requirements.

Ethernet

The Ethernet port is connected using a standard RJ-45 connector on the rear of the panel.
It is a 10/100Mbps link. The unit is shipped with DHCP enabled to allow the unit to be
plug and play if the users local area network has a DHCP server. If one is not available on
the network and the unit cannot retrieve a valid IP address after 45 seconds it will default
to a static address. This static address is set to 192.168.0.100 by default but can be altered
through SCi using the serial port connection. If DHCP is not required then this can also be
disabled through SCi using the serial port connection.

The Network connectors pin assignations are as follows:

Network Connector (RJ-45)

Pin No. Function

1 Transmit Data (Positive)

2 Transmit Data (Negative)

3 Receive Data (Positive)

4 No connection

5 No connection

6 Receive Data (Negative)

7 No connection

8 No connection

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SDI Input

The SDI input is connected using a single female BNC and has a 75Ω input impedance. It is
a triple rate SDI receiver with automatic input rate detection and equalisation. It supports
the full range of 3G, SD and HD standards from NTSC and PAL up to 1080p 60Hz. The status
of the input is displayed on the status LEDs on the front panel. When the SDI input rate
and format has been detected, the SDI lock indicator will be lit.

SDI Outputs

The two SDI outputs are connected using the two female BNC connectors on the rear
panel. They have a 75Ω output impedance in accordance with the SMPTE standard and are
both re-clocked and independently buered. Each output can be congured separately for
embedding and group deletion settings.

Audio Connections

Analogue Audio Inputs

The RB-VHEMA8 has eight analogue input channels which are separated into two
banks of four channels. The analogue audio inputs are converted to digital audio using
high performance, low noise stereo 24-bit ADCs. They are connected using balanced
connections through the D-type connectors or unbalanced connections through BNC
connectors, all are available on the rear panel. The balanced analogue inputs can be wired
unbalanced by connecting non-phase (-) pin to the ground pin for that input, and then
connecting the audio signal to the phase (+) pin.

The two input types are connected internally, so ensure that only one type of connection is
used per input.

Full Scale Setting

The analogue input full-scale settings, which determine the full-scale 0dBFS level for the
digital audio, are set internally via jumpers. They are factory set to +18dBu by default.

Full-scale Settings Jumper

JP1 JP2

+12dBu Not tted Not tted

+18dBu Fitted Not tted

+24dBu Not tted Fitted

Audio Input Gain Adjustment

The default audio input gain is unity. However, to accommodate lower or higher level
sources it is possible to introduce gain or attenuation on a per channel basis. Each audio
input has an adjustable gain range from -24dBu to +24dBu in 0.5dB increments. This is set
using the remote Control ports. Once set, this value is stored and reloaded each time the
unit is powered on.

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RB-VHEMA8 D-type Pin-out

Pin No. Function

Embed Bank 1

Function

Embed Bank 2

1 Channel 1+ Channel 1+

14 Channel 1- Channel 1-

2 Channel 1 Ground Channel 1 Ground

15 Channel 2+ Channel 2+

3 Channel 2- Channel 2-

16 Channel 2 Ground Channel 2 Ground

4 Channel 3+ Channel 3+

17 Channel 3- Channel 3-

5 Channel 3 Ground Channel 3 Ground

18 Channel 4+ Channel 4+

6 Channel 4- Channel 4-

19 Channel 4 Ground Channel 4 Ground

7 to 13 Do not connect Do not connect

20 to 25 Do not connect Do not connect

Control Modes

There are two modes available to control the embedding channel routing process. These
are the BANK mode and the CHANNEL mode.

Bank Mode

In Bank mode, audio is routed on a per bank basis, so when controlling embedding, a bank
of audio is selected to be embedded into a group.

Channel Mode

In Channel mode, audio is routed on a per channel basis. This allows for maximum
exibility when embedding, allowing any audio input channel to be embedded to any
channel within any group.

Changing Control Mode

To switch between Bank and Channel control modes, simultaneously press and hold
the GROUP CHANNEL and BANK CHANNEL buttons for 5 seconds. The mode will switch

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after this time and the button can be released. Bank mode is in use when both the BANK
CHANNEL and GROUP CHANNEL button LEDs are not lit. Conversely, when Channel mode
is in use these two LEDs are lit.

When switching from Channel to Bank mode, all channel mappings are reset and no
groups are selected for embedding. When switching from Bank to Channel mode, the
channel mappings are retained to allow for further modication.

Embedding

The analogue audio inputs can be embedded into any of the four available groups in the
two SDI outputs. They can be embedded on a per bank basis in the Bank control mode, or
a per channel basis in the Channel control mode. If you embed to a group which is already
present in the SDI video input, then this group is automatically deleted from the video
input prior to the embedding block.

Bank Mode

To embed a bank of audio to a specic group.

1 Select the SDI Output, using the STATUS button.

2 Select the bank of audio, using the BANK button.

3 Select the group to embed to, using the GROUP button.

The GROUP button LED will indicate whether embedding is enabled to this group. To
enable embedding to this group, press and hold the GROUP button for two seconds, until
the button turns green. The group number LED will blink to indicate that the change
has been applied. This indicates that embedding is enabled to this group. To disable
embedding to this group, then hold the GROUP button down until the button turns red.

In this mode, the channels of the bank are mapped directly to the group channels. For
example channel 1 in the selected bank is embedded to channel 1 of the selected group.
Channel 2 in the selected bank is embedded to channel 2 of the selected group etc.

Cycling through the groups using the GROUP button, allows the user to determine which
groups are currently enabled for embedding and will also show the source for that group.

Channel Mode

To embed a channel of audio to a specic channel within a group.

1 Select the SDI Output, using the STATUS button.

2 Select the bank of audio, using the BANK button.

3 Select the bank channel using the the BANK CHANNEL button.

4 Select the group to embed to using the GROUP button.

5 Select the group channel to embed to using the GROUP CHANNEL button.

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3

To enable embedding to this group and channel, both the GROUP and GROUP CHANNEL
must be enabled. This is indicated by the button LED being lit green. If either are red, then
simply enable them by holding down the relevant button for two seconds. Embedding will
only take place if the GROUP is enabled. If the GROUP CHANNEL is enabled and the GROUP
is not, then no embedding will occur.

Cycling through the groups and group channels using the GROUP and GROUP CHANNEL
buttons respectively, allows the user to determine which groups are currently enabled for
embedding and their sources.

SD & 24-bit Audio

The Redbox embedders provide full support for 24-bit audio embedding in SD by making
use of the extended data packets as per SMPTE-272M. By default the unit embeds 20-bit
audio. To enable the full 24-bit embedding, this must be set through the remote control
port.

Before enabling this option, ensure that any receiving equipment is capable of handling
the extended data packets.

Deleting Audio Groups

If the SDI video signal contains audio groups which require deleting, then these can be
deleted on a per output basis. For example if the video input contained all four audio
groups then it is possible to delete all groups on output 1 and only groups 1 and 2 on
output 2.

The unit will also delete any ancillary packets marked for deletion and realign the packets
to make maximum use of the available ancillary space.

To delete audio groups the unit is put into a special group deletion mode. To enter this
mode press and hold the STATUS button for 5 seconds. The front panel button indicators
will change so that only the GROUP, GROUP CHANNEL and STATUS buttons are available.
The GROUP button and indicators are used to select the group number, the GROUP
CHANNEL button is used to enable or disable deletion on this group and the STATUS
button is used to select the output. Once the desired settings have been set, then using
the same method to enter the group deletion mode will exit it. The new settings will be
applied as soon as the unit returns to its normal operating mode.

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Technical Specication For RB-VHEMA8

Front Panel Controls & Indicators

Embed Bank Select: Bank 1 or 2

Bank Channel Select: Channels 1, 2, 3 or 4

Group Select: Groups 1, 2, 3 or 4

Group Channel Select: Group channels 1,2,3 or 4

Status: 1 x SDI input status LED
2 x SDI output LEDs
4 x Audio group status LEDs

Audio Specications

Maximum Input Level: +27dBu (balanced)

Input Impedance: >10kΩ bridging (balanced)

Input Levels: +12dBu, +18dBu or +24dBu for FSD (jumper selectable)

Signal to Noise: Better than -113dBFS (RMS A-weighted at 24-bit, balanced)

Distortion and Noise: Better than -100dB THD+N at 1kHz (balanced)

Embed Delay: SD: 600 us
3G/HD: 300 us

Connections

Analogue Audio Inputs: 8 input channels via BNC (unbalanced) or D-type
socket (balanced)

Analogue Audio Connectors: 8 x BNC
2 x 25-way D-type

Power Supply: Universal ltered IEC, continuously rated 85-264VAC
@47-63Hz, fused, max 18W

Equipment Type

RB-VHEMA8 3G/HD/SD-SDI embedder, 8 channel analogue inputs

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Remote Interface Commands & Responses Protocol

Sonifex SCi remote control software handles all communication with the unit via a
convenient graphical user interface. However, this protocol is provided for those users who
wish to develop their own remote control applications or communicate with the unit using
a text-based terminal program.

Command Format

Commands are case-insensitive and should be terminated in a carriage return character, a
line feed character may be sent but it will be ignored. Further commands sent before the
rst command is acknowledged will be ignored. Responses will be CR & LF terminated.

Remote Control Commands

Command Description Response

COM:b,d,p,s Serial Port Settings

b is the baud rate (9600, 19200, 38400,
57600 and 115200)
d is the data bits (7 or 8)
p is the parity (N, O, E)
s is the stop bits (1 or 2)

ACK:

CTM:m Control Mode

m is the mode
0 = bank
1 = channel

ACK:

DEL:o,g,e Delete Audio Group

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = don’t delete
1 = delete

ACK:

DWN: Initiates a Firmware Update

EMC:o,g,c,e Embed Group Channel Enable

This is only used when operating in
channel mode
o is the output (0 or 1)
g is the group (0 to 3)
c is the channel (0 to 3)
e is the option
0 = o
1 = on

ACK:

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Command Description Response

EMG:o,g,e Embed Group Enable

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = o
1 = on

ACK:

EMR:o,g[,gc],b[,bc] Embed Route Control

o is the output (0 or 1)
g is the group (0 to 3)
gc is the group channel (0 to 3) – only in
channel mode
b is the bank (0 or 1)
bc is the bank (0 to 3) – only in channel
mode

ACK:

FPL:e Front Panel Lock

e is the enable option
0 = o
1 = on

ACK:

IPG:b,c,g Input Gain

b is the bank number (0 or 1)
c is the channel (0-3)
g is the gain value 0 to 96
0 = -24dBu and 96 = +24dBu

ACK:

MAC: MAC Address

Returns the MAC address of the unit in
12 hex characters.

MAC:XXXXXXXXXXXX

NET:x.x.x.x,y.y.y.y,z.z.z.z Network Address Settings

x.x.x.x is a valid IP address
y.y.y.y is a valid subnet mask
z.z.z.z is a valid gateway address

ACK:

NOP:o,v Network Options

o is the option number
0 = DHCP
v is the option value
0 = o
1 = on

ACK:

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Command Description Response

SDB:o,e SD Audio Sample Width

o is the output (0 or 1)
e is enable
0 = 20-bit
1 = 24-bit

ACK:

SRQ: Status Request

UID: Unit ID UID:RB-VHEMA8

VER: Version information

M1.m1.b1 is the Firmware version
M2.m2.b2 is the FPGA version

VER:M1.m1.b1, M2.m2.b2

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4

4 RB-VHCMA4 3G/HD/SD-SDI Embedder & De-Embedder
4 Channel Analogue I/O

The RB-VHCMA4 is a 4 channel analogue de-embedder and a 4 channel analogue
embedder combined into a single 19-inch rack unit. The unit can selectively de-embed
up to 4 channels within any audio group of an SDI video signal, to any of the analogue
outputs. After which, the video becomes two independent paths where the audio groups
can be selectively deleted or passed through. The unit then embeds any of the 4 analogue
input channels to available groups within each of the two video paths, which are then sent
to the re-clocked SDI outputs.

The de-embedding and embedding channel routing is controlled via the front panel
buttons and indicators. There is also LED indication for SDI input status and audio group
presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
SD and HD standards from NTSC and PAL up to 1080p 60Hz.

There is independent level control for each analogue input and output channel, which can
be adjusted from -24dB through to +24dB in 0.5dB steps.

The analogue outputs have three full-scale gain settings which can be set via jumpers
situated inside the unit. Allowable settings are +12dBu, +18dBu and +24dBu reference
FSD Similarly, the analogue inputs full-scale gain settings can be set via jumpers inside
the unit. Allowable settings are +12dBu, +18dBu and +24dBu for FSD. The balanced and
unbalanced connections are paralleled, allowing one type to be used per input or output.

System Block Diagram

Fig 4-1: RB-VHCMA4 System Block Diagram

Analogue

Outputs

Balanced

Unbalanced

SDI

Input

SDI
Output 2

SDI

Receiver

Audio

De-embedder

Audio

Embedder

SDI

Transmitter

Audio

Pass /Delete

EQ CD

Audio

Group Detect

Audio

Embedder

SDI

Transmitter

Audio

Pass /Delete

SDI
Output 1

CD

Analogue
Inputs

Balanced

Unbalanced

Embed

Bank

ADCs

4

Channel

Level

Control

Channel

Routing

4

Channel

Level

Control

De-embed

Bank

DACs

Channel
Routing

44 44

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Front Panel Indicators & Controls

Fig 4-2: RB-VHCMA4 Front Panel

Power LED

The POWER LED illuminates whilst internal power is present within the unit. If this indicator
is not on, the most likely reason is simply the absence of mains power, but under fault
conditions it may also indicate a ruptured mains fuse or a problem with the internal power
supply module.

Reset Button

In the unlikely event that the unit fails to respond, press the reset button to reboot the unit.

Bank

The BANK button is used to select between the embed and de-embed bank. The selection
determines the function of the other front panel buttons.

When the de-embed bank is selected, the front panel buttons will control de-embedding
to this bank. The button LED is used show whether the bank is enabled. To enable or
disable the bank, press and hold the BANK button for two seconds until the bank number
indicator blinks. When lit green it is enabled and when lit red it is disabled. When the bank
is disabled, all audio outputs on this bank are muted.

When the embed bank is selected, the front panel buttons will control embedding from
this bank.

Bank Channel

Embed

The BANK CHANNEL button and its indicators are only used when the unit is operating in
Channel mode and are used to select the audio input bank channel when controlling the
embedding channel routing.

Power

LED

BANK

Button

BANK

Channel

GROUP

Button

GROUP

Channel

STATUS

Button

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De-Embed

The BANK CHANNEL button and its indicators are only used when the unit is operating in
Channel mode and are used to select the audio output bank channel when controlling the
de-embedding channel routing. The button LED is used to show whether the channel is
enabled. To enable or disable the channel, press and hold the BANK CHANNEL button for
two seconds until the channel number indicator blinks. When lit green it is enabled and
when it is lit red it is disabled. When the channel is disabled, the audio output is muted.
The channel will also be muted if the bank is disabled, even if the channel is enabled.

Group

Embed

The GROUP button and its indicators are used to select the group number with which to
embed the analogue input channels to. The button LED is used show whether embedding
is enabled to the currently selected group. To enable or disable the embedding to a group,
press and hold the GROUP button for two seconds until the group number indicator blinks.
When lit green it is enabled and when it is lit red it is disabled. When the group is disabled,
no embedding is done to that group number.

De-Embed

The GROUP button and its indicators are used to select the group audio number within the
video signal to de-embed and send to analogue outputs in the currently selected bank.

Group Channel

Embed

The GROUP CHANNEL and its indicators are used to select the channel within the currently
selected group with which to embed the analogue input channel to. This button is only
used when operating in Channel mode. The button LED is used show whether the channel
is enabled for embedding. To enable or disable the channel, press and hold the GROUP
CHANNEL button for two seconds until the channel number indicator blinks. When lit
green it is enabled and when it is lit red it is disabled. When the channel is disabled, no
audio is embedded to that channel. The channel will also not be embedded if the group is
not enabled for embedding, even if the channel is enabled.

De-Embed

The GROUP CHANNEL button and its indicators are used to select the channel number
within the currently selected group to de-embed and send to the analogue output in the
currently selected bank and bank channel. This button is only used when operating in
Channel mode.

Status

This button is used to select the output number when controlling the embedding routing.
It is also used to enter and exit the group deletion mode.

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Audio Group Detection

The four audio group indicators associated with the STATUS button display the audio
groups present in the SDI input. If an audio group is present, its relevant indicator will be
lit. This is useful to determine which groups require deleting or which groups are available
for embedding.

Lock Indicator

The lock indicator is lit when the the SDI receiver has detected and locked to the incoming
video format. If the input is disconnected or is intermittent then the lock indicator will stay
unlit.

Output Indicators

These two indicators are used to indicate which one of the two outputs are selected when
conguring the embedding routing or when conguring audio packets for deletion.

Rear Panel Connections

Fig 4-3: RB-VHCMA4 Front Panel

Mains Power

Power is applied via a standard three-pin IEC male socket. Mains voltages between 85V
and264V AC and frequencies between 47 and 63Hz are accepted without adjustment. A
2A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to ensure safety.

Remote Control

The unit can be controlled remotely either by serial RS-232 or Ethernet using the Sonifex
SCi software. Using remote control allows the user to monitor the status of the unit and
also set various options and settings not available via the front panel.

PowerRS232

Ethernet Fuse

Bank

Bal I/O

De-embed

Bank Unbal

Outputs

Embed

Bank

Unbal Inputs

SDIINSDI Outputs

1 and 2

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RS232 Remote Control

A 9-way female D-type connector carries a standard RS232 interface via which advanced
conguration options may be set and many functions may be remotely controlled. The pin
assignations are as follows:

Pin No. Function

1 Unused

6 Unused

2 Data transmit (TX)

7 Unused

3 Data receive (RX)

8 Unused

4 Unused

9 Unused

5 Ground

The RB-VHCMA4 will interface directly with personal computer serial ports at standard
RS232 signal levels using a straight-through cable. The default format is 19200 baud with 8
data bits, even parity and 1 stop bit. Sonifex SCi software, when installed on a suitable PC,
provides straightforward graphical access to all remote control and conguration options
via both RS232 and Ethernet interfaces. Alternatively, commands may be issued from any
text-based terminal program (e.g. Hyperterminal) or custom software may be developed
for specic requirements.

Ethernet

The Ethernet port is connected using a standard RJ-45 connector on the rear of the panel.
It is a 10/100Mbps link. The unit is shipped with DHCP enabled to allow the unit to be
plug and play if the users local area network has a DHCP server. If one is not available on
the network and the unit cannot retrieve a valid IP address after 45 seconds it will default
to a static address. This static address is set to 192.168.0.100 by default but can be altered
through SCi using the serial port connection. If DHCP is not required then this can also be
disabled through SCi using the serial port connection.

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The Network connectors pin assignations are as follows:

Network Connector (RJ-45)

Pin No. Function

1 Transmit Data (Positive)

2 Transmit Data (Negative)

3 Receive Data (Positive)

4 No connection

5 No connection

6 Receive Data (Negative)

7 No connection

8 No connection

SDI Input

The SDI input is connected using a single female BNC and has a 75Ω input impedance. It is
a triple rate SDI receiver with automatic input rate detection and equalisation. It supports
the full range of 3G, SD and HD standards from NTSC and PAL up to 1080p 60Hz. The status
of the input is displayed on the status LEDs on the front panel. When the SDI input rate
and format has been detected, the SDI lock indicator will be lit.

SDI Outputs

The two SDI outputs are connected using the two female BNC connectors on the rear
panel. They have a 75Ω output impedance in accordance with the SMPTE standard and are
both re-clocked and independently buered. Each output can be congured separately for
embedding and group deletion settings.

Audio Connections

Analogue Audio Inputs

The RB-VHCMA4 has four analogue inputs grouped into a single embed bank. The
analogue inputs are converted to digital audio using high performance, low noise stereo
24-bit ADC’s. They are connected using balanced connections through the D-type
connectors or unbalanced connections through BNC connectors, all are available on the
rear panel. The balanced analogue inputs can be wired unbalanced by connecting non­phase (-) pin to the ground pin for that input, and then connecting the audio signal to the
phase (+) pin.

The two input types are connected internally, so please ensure that only one type of
connection is used per input.

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Full Scale Setting

The analogue input full-scale settings, which determine the full-scale 0dBFS level for the
digital audio, are set internally via jumpers. They are factory set to +18dBu by default.

Full-scale Settings Jumper

JP1 JP2

+12dBu Not tted Not tted

+18dBu Fitted Not tted

+24dBu Not tted Fitted

Analogue Audio Outputs

The RB-VHCMA4 has four analogue outputs grouped into a single de-embed bank.
These can be connected using balanced connections through the D-type connectors or
unbalanced connections through BNC connectors, all are available on the rear panel. The
balanced analogue outputs can be wired unbalanced by connecting non-phase (-) pin to
the ground pin for that output, and then connecting the audio signal to the phase (+) pin.

The two output types are connected internally, so please ensure that only one type of
connection is used per output.

Full Scale Setting

The analogue output full-scale settings, which determine the full-scale 0dBFS level for the
digital audio, are set internally via jumpers. They are factory set to +18dBu by default.

Full-scale Settings Jumper

JP1 JP2

+12dBu Not tted Not tted

+18dBu Fitted Not tted

+24dBu Fitted Fitted

Audio Input and Output Gain Adjustment

The default audio channel gain is unity. However, to accommodate lower or higher level
sources it is possible to introduce gain or attenuation on a per channel basis. Each audio
channel has an adjustable gain range from -24dBu to +24dBu in 0.5dB increments. This is
set using the remote Control ports. Once set, this value is stored and reloaded each time
the unit is powered on.

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RB-VHCMA4 D-type Pin-out

Pin No. Function

De-Embed Bank

Function

Embed Bank

1 Channel 1+ Channel 1+

14 Channel 1- Channel 1-

2 Channel 1 Ground Channel 1 Ground

15 Channel 2+ Channel 2+

3 Channel 2- Channel 2-

16 Channel 2 Ground Channel 2 Ground

4 Channel 3+ Channel 3+

17 Channel 3- Channel 3-

5 Channel 3 Ground Channel 3 Ground

18 Channel 4+ Channel 4+

6 Channel 4- Channel 4-

19 Channel 4 Ground Channel 4 Ground

7 to 13 Do not connect Do not connect

20 to 25 Do not connect Do not connect

Control Modes

There are two modes available to control the embedding and de-embedding channel
routing process. These are the BANK mode and the CHANNEL mode.

Bank Mode

In Bank mode, audio is routed on a per bank basis, so when controlling embedding, a bank
of audio is selected to be embedded into a group and when de-embedding a group of
audio is selected to be sent to a bank.

Channel Mode

In Channel mode, audio is routed on a per channel basis, this allows for maximum exibility
when embedding and de-embedding allowing any audio input channel to be embedded
to any channel within any group. And conversely, when de-embedding, any channel
within any group can be sent to any channel of any of the available audio output banks.

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Changing Control Mode

To switch between Bank and Channel control modes, simultaneously press and hold
the GROUP CHANNEL and BANK CHANNEL buttons for 5 seconds. The mode will switch
after this time and the button can be released. Bank mode is in use when both the BANK
CHANNEL and GROUP CHANNEL button LEDs are not lit. Conversely, when Channel mode
is in use these two LEDs are lit.

When switching from Channel to Bank mode, all channel mappings are reset and no
groups are selected for embedding. When switching from Bank to Channel mode, the
channel mappings are retained to allow for further modication.

Embedding

The analogue audio inputs can be embedded into any of the four available groups in the
two SDI outputs. They can be embedded on a per bank basis in the Bank control mode, or
a per channel basis in the Channel control mode. If you embed to a group which is already
present in the SDI video input, then this group is automatically deleted from the video
input prior to the embedding block.

Bank Mode

To embed a bank of audio to a specic group.

 Select the Embed bank, using the BANK button.

 Select the SDI Output, using the STATUS button.

 Select the group to embed to, using the GROUP button.

The GROUP button LED will indicate whether embedding is enabled to this group. To
enable embedding to this group, press and hold the GROUP button for two seconds, until
the button turns green. The group number LED will blink to indicate that the change
has been applied. This indicates that embedding is enabled to this group. To disable
embedding to this group, then hold the GROUP button down until the button turns red.

In this mode, the channels of the bank are mapped directly to the group channels. For
example channel 1 in the selected bank is embedded to channel 1 of the selected group.
Channel 2 in the selected bank is embedded to channel 2 of the selected group etc.

Cycling through the groups using the GROUP button, allows the user to determine which
groups are currently enabled for embedding and will also show the source for that group.

Channel Mode

To embed a channel of audio to a specic channel within a group.

1 Select the Embed bank, using the BANK button.

2 Select the SDI Output, using the STATUS button.

3 Select the bank channel using the the BANK CHANNEL button.

4 Select the group to embed to using the GROUP button.

5 Select the group channel to embed to using the GROUP CHANNEL button.

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To enable embedding to this group and channel, both the GROUP and GROUP CHANNEL
must be enabled. This is indicated by the button LED being lit green. If either are red, then
simply enable them by holding down the relevant button for two seconds. Embedding will
only take place if the GROUP is enabled. If the GROUP CHANNEL is enabled and the GROUP
is not, then no embedding will occur.

Cycling through the groups and group channels using the GROUP and GROUP CHANNEL
buttons respectively, allows the user to determine which groups are currently enabled for
embedding and their sources.

SD & 24-bit Audio

The Redbox embedders provide full support for 24-bit audio embedding in SD by making
use of the extended data packets as per SMPTE-272M. By default the unit embeds 20-bit
audio. To enable the full 24-bit embedding, this must be set through the remote control
port.

Before enabling this option, ensure that any receiving equipment is capable of handling
the extended data packets.

De-Embedding

The unit is always de-embedding, automatically reading all the audio data contained in the
video signal as it appears to the de-embedding block. Using the front panel controls the
user can control which of these channels or groups within the video input are routed to the
analogue outputs.

If an SD video signal is being received and extended audio data is detected, then the unit
will automatically use this to reproduce full 24-bit audio data and no user intervention is
required.

Bank Mode

In bank mode de-embedding is controlled on a per group basis. So groups are selected to
be output on a particular bank.

To de-embed a group of audio to a specic bank.

1 Select the De-Embed bank, using the BANK button.

2 Select the group to de-embed using the GROUP button.

The BANK button LED will show whether the bank is enabled. To enable de-embedding to
this bank, press and hold the BANK button for two seconds, until the button turns green.
This indicates that de-embedding is enabled to this bank. To turn o de-embedding, then
hold the BANK button down until the button turns red. The bank number indicator will
blink to show that the change has been applied.

In this mode, the channels of the group are mapped directly to the bank channels. For
example channel 1 in the selected group is de-embedded to channel 1 of the selected
bank. Channel 2 in the selected group is de-embedded to channel 2 of the selected
bank etc.

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Cycling through the banks using the BANK button, allows the user to determine which
banks are currently enabled for de-embedding and will also show the source group for that
bank.

Channel Mode

In channel mode, de-embedding is controlled on a per channel basis. So channels within a
group are selected to be output on a particular channel within a bank.

To de-embed a group channel of audio to a specic bank channel.

1 Select the De-Embed bank using the BANK button.

2 Select the output bank channel using the BANK CHANNEL button.

3 Select the group to de-embed using the GROUP button.

4 Select the group channel to de-embed using the GROUP CHANNEL button.

To enable de-embedding to this channel, both the BANK and BANK CHANNEL must be
enabled. This is indicated by the button LED being lit green. If either are red, then simply
enable them by holding down the relevant button for two seconds.

Cycling through the banks and bank channels using the BANK and BANK CHANNEL buttons
respectively, allows the user to determine which bank channels are currently enabled for
de-embedding and will also show the source for that bank channel.

Deleting Audio Groups

If the SDI video signal contains audio groups which require deleting, then these can be
deleted on a per output basis. For example if the video input contained all four audio
groups then it is possible to delete all groups on output 1 and only groups 1 and 2 on
output 2.

The unit will also delete any ancillary packets marked for deletion and realign the packets
to make maximum use of the available ancillary space.

To delete audio groups the unit is put into a special group deletion mode. To enter this
mode press and hold the STATUS button for 5 seconds. The front panel button indicators
will change so that only the GROUP, GROUP CHANNEL and STATUS buttons are available.
The GROUP button and indicators are used to select the group number, the GROUP
CHANNEL button is used to enable or disable deletion on this group and the STATUS
button is used to select the output. Once the desired settings have been set, then using
the same method to enter the group deletion mode will exit it. The new settings will be
applied as soon as the unit returns to its normal operating mode.

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4

RBVHCMA4

Technical Specication For RB-VHCMA4

Front Panel Controls & Indicators

Bank Select: De-embed bank or Embed bank

Bank Channel Select: Channels 1, 2, 3 or 4

Group Select: Groups 1, 2, 3 or 4

Group Channel Select: Group channels 1,2,3 or 4

Status: 1 x SDI input status LED
2 x SDI output LEDs
4 x Audio group status LEDs

Audio Specications

Analogue Inputs

Maximum Input Level: +27dBu (balanced)

Input Impedance: >10kΩ bridging (balanced)

Input Levels: +12dBu, +18dBu or +24dBu for FSD (jumper selectable)

Signal to Noise: Better than -113dBFS (RMS A-weighted at 24-bit, balanced)

Distortion and Impedance: Better than -100dB THD+N at 1kHz (balanced)

Analogue Outputs

Max Output Level: +24dBu (balanced)

Output Impedance: <50Ω (balanced)

Gain Range: 12dBu, 18dBu or 24dBu ref FSD (jumper selectable)

Signal to Noise: Better than -106dB (RMS A-weighted at 24-bit, balanced)

Distortion and Noise: Better than -85dB THD+N at 1kHz (balanced)

De-embed Delay: 3G/HD/SD: 1.1 ms

Embed Delay: SD: 600 us
3G/HD: 300 us

Connections

Analogue Audio Inputs: 4 input channels via BNC (unbalanced) or D-type (balanced)

Analogue Audio Outputs: 4 output channels via BNC (unbalanced
or D-type (balanced)

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RBVHCMA4

RBVHCMA4

Analogue Audio Connectors: 8 x BNC
2 x 25-way D-type

Power Supply: Universal ltered IEC, continuously rated 85-264VAC
@47-63Hz, fused, max 16W

Equipment Type

RB-VHCMA4 3G/HD/SD-SDI embedder & de- embedder,
4 channel analogue I/O

Remote Interface Commands & Responses Protocol

Sonifex SCi remote control software handles all communication with the unit via a
convenient graphical user interface. However, this protocol is provided for those users who
wish to develop their own remote control applications or communicate with the unit using
a text-based terminal program.

Command Format

Commands are case-insensitive and should be terminated in a carriage return character, a
line feed character may be sent but it will be ignored. Further commands sent before the
rst command is acknowledged will be ignored. Responses will be CR & LF terminated.

Remote Control Commands

Command Description Response

COM:b,d,p,s Serial Port Settings

b is the baud rate (9600, 19200, 38400,
57600 and 115200)
d is the data bits (7 or 8)
p is the parity (N, O, E)
s is the stop bits (1 or 2)

ACK:

CTM:m Control Mode

m is the mode
0 = bank
1 = channel

ACK:

DEL:o,g,e Delete Audio Group

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = don’t delete
1 = delete

ACK:

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RBVHCMA4

Command Description Response

DWN: Initiates a Firmware Update

EMC:o,g,c,e Embed Group Channel Enable

This is only used when operating in
channel mode
o is the output (0 or 1)
g is the group (0 to 3)
c is the channel (0 to 3)
e is the option
0 = o
1 = on

ACK:

EMG:o,g,e Embed Group Enable

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = o
1 = on

ACK:

EMR:o,g[,gc],b[,bc] Embed Route Control

o is the output (0 or 1)
g is the group (0 to 3)
gc is the group channel (0 to 3) – only in
channel mode
b is the bank (0 or 1)
bc is the bank (0 to 3) – only in channel
mode

ACK:

DMC:b,c,e De-Embed Bank Channel Enable

This is only used when operating in
channel mode
b is the bank (0 to 3)
c is the channel (0 to 3)
e is the option
0 = o
1 = on

ACK:

DMB:b,e De-Embed Bank Enable

b is the group (0 to 3)
e is the option
0 = o
1 = on

ACK:

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RBVHCMA4

Command Description Response

DMR:b[,bc],g[,gc] De-Embed Route Control

b is the bank (0 to 3)
bc is the bank channel (0 to 3) – only in
channel mode
g is the group (0 to 3)
gc is the group channel (0 to 3) – only in
channel mode

ACK:

FPL:e Front Panel Lock

e is the enable option
0 = o
1 = on

ACK:

IPG:b,c,g Input Gain

b is the bank number (0 or 1)
c is the channel (0-3)
g is the gain value 0 to 96
0 = -24dBu and 96 = +24dBu

ACK:

MAC: MAC Address

Returns the MAC address of the unit in 12
hex characters.

MAC:XXXXXXXXXXXX

NET:x.x.x.x,y.y.y.y,z.z.z.z Network Address Settings

x.x.x.x is a valid IP address
y.y.y.y is a valid subnet mask
z.z.z.z is a valid gateway address

ACK:

NOP:o,v Network Options

o is the option number
0 = DHCP
v is the option value
0 = o
1 = on

ACK:

OPG:b,c,g Output Gain

b is the bank number (0 or 1)
c is the channel (0-3)
g is the gain value 0 to 96
0 = -24dBu and 96 = +24dBu

ACK:

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Command Description Response

SDB:o,e SD Audio Sample Width

o is the output (0 or 1)
e is enable
0 = 20-bit
1 = 24-bit

ACK:

SRQ: Status Request

UID: Unit ID UID:RB-VHEMA8

VER: Version information

M1.m1.b1 is the Firmware version
M2.m2.b2 is the FPGA version

VER:M1.m1.b1, M2.m2.
b2

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Digital

Outputs

Balanced

Unbalanced

Bank 1

Digital Audio

Transmitter

Channel
Routing

16

Channel

Level

Control

Bank 2

Digital Audio

Transmitter

Bank 3

Digital Audio

Transmitter

Bank 4
Digital

Audio TX

SDI

Input

SDI
Output 2

SDI

Receiver

Audio

De-embedder

Audio

Group Detect

Audio

Embedder

SDI

Transmitter

Audio

Pass /Delete

Audio

Embedder

SDI

Transmitter

Audio

Pass /Delete

EQ CD

SDI
Output 1

CD

16

Channel

Level

Control

Channel

Routing

Bank 1

Digital Audio

RX+SRC

Bank 2

Digital Audio

RX+SRC

Bank 3

Digital Audio

RX+SRC

Bank 4

Digital Audio

RX+SRC

Digital
Inputs

Balanced

Unbalanced

4

4

4

4

16

4

4

4

4

16

5

RBVHCMD16

RBVHCMD16

5 RB-VHCMD16 3G/HD/SD-SDI Embedder & De-Embedder
16 Channel Digital I/O

The RB-VHCMD16 is a 16 channel de-embedder and 16 channel embedder combined into
a single 19-inch rack unit. The unit can selectively de-embed any channel within any audio
group of an SDI video signal, to any of the digital outputs. After which, the video becomes
two independent paths where the audio groups can be selectively deleted or passed
through. The unit then embeds any of the digital input channels to available groups within
each of the two video paths, which are then sent to the re-clocked SDI outputs.

The de-embedding and embedding channel routing is controlled via the front panel
buttons and indicators. There is also LED indication for SDI input status and audio group
presence.

The unit can be remote controlled via Ethernet or serial port connections using the Sonifex
SCi software.

It has a triple rate SDI receiver with automatic input rate detection and equalisation along
with two re-clocked and individually buered SDI outputs. It supports the full range of 3G,
HD and SD standards from NTSC and PAL up to 1080p 60Hz.

Each digital input is normally sample rate converted to 48kHz before embedding, so that
it is synchronous to the video input. Though sample rate conversion can be bypassed on a
per input basis allowing SMPTE-337M data to be embedded. All digital outputs are output
at 48kHz, synchronous to the video input.

There is independent level control for each digital input and output channel, which can be
adjusted from -24dB through to +24dB in 0.5dB steps.

The digital audio I/O connections are transformer-coupled balanced line interfaces and can
be congured through SCi to be either 75Ω (AES 3ID) or 110Ω (AES 3) impedance through
either a BNC or via the D-type connector. These connections are paralleled, allowing one
type to be used per input or output.

System Block Diagram

Fig 5-1: RB-VHCMD16 System Block Diagram

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Front Panel Indicators & Controls

Fig 5-2: RB-VHCMD16 Front Panel

Power LED

The POWER LED illuminates whilst internal power is present within the unit. If this indicator
is not on, the most likely reason is simply the absence of mains power, but under fault
conditions it may also indicate a ruptured mains fuse or a problem with the internal power
supply module.

Reset Button

In the unlikely event that the unit fails to respond, press the reset button to reboot the unit.

Bank

Embed

The BANK button and its associated indicators are used to select the audio input bank
when controlling the embedding channel routing.

De-Embed

The BANK button and its associated indicators are used to select the audio output bank
when controlling the de-embedding channel routing. The button LED is used show
whether the bank is enabled. To enable or disable the bank, press and hold the BANK
button for two seconds until the bank number indicator blinks. When lit green it is enabled
and when it is lit red it is disabled. When the bank is disabled, all audio outputs are muted.

Bank Channel

Embed

The BANK CHANNEL button and its indicators are only used when the unit is operating in
Channel mode and are used to select the audio input bank channel when controlling the
embedding channel routing.

De-Embed

The BANK CHANNEL button and its indicators are only used when the unit is operating in
Channel mode and are used to select the audio output bank channel when controlling the
de-embedding channel routing. The button LED is used to show whether the channel is
enabled. To enable or disable the channel, press and hold the BANK CHANNEL button for
two seconds until the channel number indicator blinks. When lit green it is enabled and
when it is lit red it is disabled. When the channel is disabled, the audio output is muted.
The channel will also be muted if the bank is disabled, even if the channel is enabled.

Power

LED

BANK

Button

BANK

Channel

GROUP
Button

GROUP
Channel

STATUS
Button

FUNCTION

Button

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RBVHCMD16

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Function Button

This button is used to select between embedding or de-embedding control.

Group

Embed

The GROUP button and its indicators are used to select the group number with which to
embed the analogue input channels to. The button LED is used show whether embedding
is enabled to the currently selected group. To enable or disable the embedding to a group,
press and hold the GROUP button for two seconds until the group number indicator blinks.
When lit green it is enabled and when it is lit red it is disabled. When the group is disabled,
no embedding is done to that group number.

De-Embed

The GROUP button and its indicators are used to select the group audio number within the
video signal to de-embed and send to digital outputs in the currently selected bank.

Group Channel

Embed

The GROUP CHANNEL and its indicators are used to select the channel within the currently
selected group with which to embed the digital input channel to. This button is only used
when operating in Channel mode. The button LED is used show whether the channel
is enabled for embedding. To enable or disable the channel, press and hold the GROUP
CHANNEL button for two seconds until the channel number indicator blinks. When lit
green it is enabled and when it is lit red it is disabled. When the channel is disabled, no
audio is embedded to that channel. The channel will also not be embedded if the group is
not enabled for embedding, even if the channel is enabled.

De-Embed

The GROUP CHANNEL button and its indicators are used to select the channel number
within the currently selected group to de-embed and send to the digital output in the
currently selected bank and bank channel. This button is only used when operating in
Channel mode.

Status

This button is used to select the output number when controlling the embedding routing.
It is also used to enter and exit the group deletion mode.

Audio Group Detection

The four audio group indicators associated with the STATUS button display the audio
groups present in the SDI input. If an audio group is present, its relevant indicator will be
lit. This is useful to determine which groups require deleting or which groups are available
for embedding.

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Lock Indicator

The lock indicator is lit when the the SDI receiver has detected and locked to the incoming
video format. If the input is disconnected or is intermittent then the lock indicator will stay
unlit.

Output Indicators

These two indicators are used to indicate which one of the two outputs are selected when
conguring the embedding routing or when conguring audio packets for deletion.

Rear Panel Connections

Fig 5-3: RB-VHCMD16 Rear Panel

Mains Power

Power is applied via a standard three-pin IEC male socket. Mains voltages between 85V
and264V AC and frequencies between 47 and 63Hz are accepted without adjustment. A
2A, 5 x 20mm SB fuse is used. The Earth pin MUST be connected to ensure safety.

Remote Control

The unit can be controlled remotely either by serial RS-232 or Ethernet using the Sonifex
SCi software. Using remote control allows the user to monitor the status of the unit and
also set various options and settings not available via the front panel.

PowerRS232

Ethernet Fuse

AES D-Type

I/O

AES BNC

I/O

SDIINSDI Outputs

1 and 2

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RBVHCMD16

RBVHCMD16

RS232 Remote Control

A 9-way female D-type connector carries a standard RS232 interface via which advanced
conguration options may be set and many functions may be remotely controlled. The pin
assignations are as follows:

Pin No. Function

1 Unused

6 Unused

2 Data transmit (TX)

7 Unused

3 Data receive (RX)

8 Unused

4 Unused

9 Unused

5 Ground

The RB-VHCMD16 will interface directly with personal computer serial ports at standard
RS232 signal levels using a straight-through cable. The default format is 19200 baud with 8
data bits, even parity and 1 stop bit. Sonifex SCi software, when installed on a suitable PC,
provides straightforward graphical access to all remote control and conguration options
via both RS232 and Ethernet interfaces. Alternatively, commands may be issued from any
text-based terminal program (e.g. Hyperterminal) or custom software may be developed
for specic requirements.

Ethernet

The Ethernet port is connected using a standard RJ-45 connector on the rear of the panel.
It is a 10/100Mbps link. The unit is shipped with DHCP enabled to allow the unit to be
plug and play if the users local area network has a DHCP server. If one is not available on

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the network and the unit cannot retrieve a valid IP address after 45 seconds it will default
to a static address. This static address is set to 192.168.0.100 by default but can be altered
through SCi using the serial port connection. If DHCP is not required then this can also be
disabled through SCi using the serial port connection.

The Network connectors pin assignations are as follows:

Network Connector (RJ-45)

Pin No. Function

1 Transmit Data (Positive)

2 Transmit Data (Negative)

3 Receive Data (Positive)

4 No connection

5 No connection

6 Receive Data (Negative)

7 No connection

8 No connection

SDI Input

The SDI input is connected using a single female BNC and has a 75Ω input impedance. It is
a triple rate SDI receiver with automatic input rate detection and equalisation. It supports
the full range of 3G, SD and HD standards from NTSC and PAL up to 1080p 60Hz. The status
of the input is displayed on the status LEDs on the front panel. When the SDI input rate
and format has been detected, the SDI lock indicator will be lit.

SDI Outputs

The two SDI outputs are connected using the two female BNC connectors on the rear
panel. They have a 75Ω output impedance in accordance with the SMPTE standard and are
both re-clocked and independently buered. Each output can be congured separately for
embedding and group deletion settings.

Audio Connections

Digital Audio Inputs & Outputs

The RB-VHCMD16 has sixteen channels of audio inputs and outputs grouped into four
banks each with four input channels of inputs and four output channels.

The digital audio I/O connections are transformer-coupled balanced line interfaces and
can be congured through SCi to be either 75Ω (AES 3ID) or 110Ω (AES 3) input or output
impedance through either a BNC or via the D-type connector. These connections are
paralleled, allowing one type to be used per input or output.

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RBVHCMD16

The digital inputs are sample rate converted to 48kHz so that the audio is synchronous to
the video input signal. This can be disabled via a remote control option.

The digital outputs are always output at 48kHz and will be synchronous to the video signal.
No sample rate conversion is applied to the digital outputs.

Audio Input and Output Gain Adjustment

The default audio channel gain is unity. However, to accommodate lower or higher level
sources it is possible to introduce gain or attenuation on a per channel basis. Each audio
channel has an adjustable gain range from -24dBu to +24dBu in 0.5dB increments. This is
set using the remote Control ports. Once set, this value is stored and reloaded each time
the unit is powered on.

Automatic Dolby Detection & SMPTE-337M Support

Each digital input is sample rate converted by default so that it is synchronous to the
incoming video signal. But if a digital audio signal contains non-linear PCM data such as
Dolby E or Dolby Digital, then this process will corrupt the data and render it unusable.
In addition to this if any gain or attenuation is applied to this channel, the eect will be
similar. To provide support for these types of signals and any other non-audio data the
units will automatically detect non-audio data and bypass the SRC and gain sections as
soon as it is detected. This method relies on the channel status bits being correct, but
there is also an option to bypass the SRC on a per input basis regardless of the signal
content. The user must ensure that unity gain is applied through the gain section in this
case so that the data is passed through unaected.

Note that for correct embedding of non-audio data, the digital audio input must be
synchronous to the video signal prior to the embedder unit.

RB-VHCMD16 D-type Pin-out

Pin No. Function

I/O Bank 1

Function

I/O Bank 2

1 Digital 1 In+ Digital 5 In+

14 Digital 1 In- Digital 5 In-

2 Digital 1 In Ground Digital 5 In Ground

15 Digital 1 Out+ Digital 5 Out+

3 Digital 1 Out- Digital 5 Out-

16 Digital 1 Out Ground Digital 5 Out Ground

4 Digital 2 In+ Digital 6 In+

17 Digital 2 In- Digital 6 In-

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5 Digital 2 In Ground Digital 6 In Ground

18 Digital 2 Out+ Digital 6 Out+

6 Digital 2 Out- Digital 6 Out-

19 Digital 2 Out Ground Digital 6 Out Ground

7 Digital 3 In+ Digital 7 In+

20 Digital 3 In- Digital 7 In-

8 Digital 3 In Ground Digital 7 In Ground

21 Digital 3 Out+ Digital 7 Out+

9 Digital 3 Out- Digital 7 Out-

22 Digital 3 Out Ground Digital 7 Out Ground

10 Digital 4 In+ Digital 8 In+

23 Digital 4 In- Digital 8 In-

11 Digital 4 In Ground Digital 8 In Ground

24 Digital 4 Out+ Digital 8 Out+

12 Digital 4 Out- Digital 8 Out-

25 Digital 4 Out Ground Digital 8 Out Ground

13 Do not connect Do not connect

Control Modes

There are two modes available to control the embedding and de-embedding channel
routing process. These are the BANK mode and the CHANNEL mode.

Bank Mode

In Bank mode, audio is routed on a per bank basis, so when controlling embedding, a bank
of audio is selected to be embedded into a group and when de-embedding a group of
audio is selected to be sent to a bank.

Channel Mode

In Channel mode, audio is routed on a per channel basis, this allows for maximum exibility
when embedding and de-embedding allowing any audio input channel to be embedded
to any channel within any group. And conversely, when de-embedding, any channel within
any group can be sent to any channel of any of the available audio output banks.

Changing Control Mode

To switch between Bank and Channel control modes, simultaneously press and hold
the GROUP CHANNEL and BANK CHANNEL buttons for 5 seconds. The mode will switch
after this time and the button can be released. Bank mode is in use when both the BANK

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RBVHCMD16

RBVHCMD16

CHANNEL and GROUP CHANNEL button LEDs are not lit. Conversely, when Channel mode
is in use these two LEDs are lit.

When switching from Channel to Bank mode, all channel mappings are reset and no
groups are selected for embedding. When switching from Bank to Channel mode, the
channel mappings are retained to allow for further modication.

Embedding

The audio inputs can be embedded into any of the four available groups in the two SDI
outputs. They can be embedded on a per bank basis in the Bank control mode, or a per
channel basis in the Channel control mode. If you embed to a group which is already
present in the SDI video input, then this group is automatically deleted from the video
input prior to the embedding block.

Bank Mode

To embed a bank of audio to a specic group.

1 Select the Embed function using the FUNCTION button.

2 Select the SDI output using the STATUS button.

3 Select the bank of audio using the BANK button.

4 Select the group to embed to, using the GROUP button.

The GROUP button LED will indicate whether embedding is enabled to this group. To
enable embedding to this group, press and hold the GROUP button for two seconds, until
the button turns green. The group number LED will blink to indicate that the change
has been applied. This indicates that embedding is enabled to this group. To disable
embedding to this group, then hold the GROUP button down until the button turns red.

In this mode, the channels of the bank are mapped directly to the group channels. For
example channel 1 in the selected bank is embedded to channel 1 of the selected group.
Channel 2 in the selected bank is embedded to channel 2 of the selected group etc.

Cycling through the groups using the GROUP button, allows the user to determine which
groups are currently enabled for embedding and will also show the source for that group.

Channel Mode

To embed a channel of audio to a specic channel within a group.

1 Select the Embed function using the FUNCTION button.

2 Select the SDI Output, using the STATUS button.

3 Select the bank of audio using the BANK button.

4 Select the bank channel using the the BANK CHANNEL button.

5 Select the group to embed to using the GROUP button.

6 Select the group channel to embed to using the GROUP CHANNEL button.

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5

To enable embedding to this group and channel, both the GROUP and GROUP CHANNEL
must be enabled. This is indicated by the button LED being lit green. If either are red, then
simply enable them by holding down the relevant button for two seconds. Embedding will
only take place if the GROUP is enabled. If the GROUP CHANNEL is enabled and the GROUP
is not, then no embedding will occur.

Cycling through the groups and group channels using the GROUP and GROUP CHANNEL
buttons respectively, allows the user to determine which groups are currently enabled for
embedding and their sources.

SD & 24-bit Audio

The Redbox embedders provide full support for 24-bit audio embedding in SD by making
use of the extended data packets as per SMPTE-272M. By default the unit embeds 20-bit
audio. To enable the full 24-bit embedding, this must be set through the remote control
port.

Before enabling this option, ensure that any receiving equipment is capable of handling
the extended data packets.

De-Embedding

The unit is always de-embedding, automatically reading all the audio data contained in the
video signal as it appears to the de-embedding block. Using the front panel controls the
user can control which of these channels or groups within the video input are routed to the
analogue outputs.

If an SD video signal is being received and extended audio data is detected, then the unit
will automatically use this to reproduce full 24-bit audio data and no user intervention is
required.

Bank Mode

In bank mode de-embedding is controlled on a per group basis. So groups are selected to
be output on a particular bank.

To de-embed a group of audio to a specic bank.

1 Select the De-Embed function using the FUNCTION button.
2 Select the audio bank, using the BANK button.
3 Select the group to de-embed using the GROUP button.

The BANK button LED will show whether the bank is enabled. To enable de-embedding to
this bank, press and hold the BANK button for two seconds, until the button turns green.
This indicates that de-embedding is enabled to this bank. To turn o de-embedding, then
hold the BANK button down until the button turns red. The bank number indicator will
blink to show that the change has been applied.

In this mode, the channels of the group are mapped directly to the bank channels. For
example channel 1 in the selected group is de-embedded to channel 1 of the selected
bank. Channel 2 in the selected group is de-embedded to channel 2 of the selected
bank etc.

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RBVHCMD16

Cycling through the banks using the BANK button, allows the user to determine which
banks are currently enabled for de-embedding and will also show the source group for that
bank.

Channel Mode

In channel mode, de-embedding is controlled on a per channel basis. So channels within a
group are selected to be output on a particular channel within a bank.

To de-embed a group channel of audio to a specic bank channel.

1 Select the De-Embed function using the FUNCTION button.

2 Select the audio bank using the BANK button.

3 Select the output bank channel using the BANK CHANNEL button.

4 Select the group to de-embed using the GROUP button.

5 Select the group channel to de-embed using the GROUP CHANNEL button.

To enable de-embedding to this channel, both the BANK and BANK CHANNEL must be
enabled. This is indicated by the button LED being lit green. If either are red, then simply
enable them by holding down the relevant button for two seconds.

Cycling through the banks and bank channels using the BANK and BANK CHANNEL buttons
respectively, allows the user to determine which bank channels are currently enabled for
de-embedding and will also show the source for that bank channel.

Deleting Audio Groups

If the SDI video signal contains audio groups which require deleting, then these can be
deleted on a per output basis. For example if the video input contained all four audio
groups then it is possible to delete all groups on output 1 and only groups 1 and 2 on
output 2.

The unit will also delete any ancillary packets marked for deletion and realign the packets
to make maximum use of the available ancillary space.

To delete audio groups the unit is put into a special group deletion mode. To enter this
mode press and hold the STATUS button for 5 seconds. The front panel button indicators
will change so that only the GROUP, GROUP CHANNEL and STATUS buttons are available.
The GROUP button and indicators are used to select the group number, the GROUP
CHANNEL button is used to enable or disable deletion on this group and the STATUS
button is used to select the output. Once the desired settings have been set, then using
the same method to enter the group deletion mode will exit it. The new settings will be
applied as soon as the unit returns to its normal operating mode.

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Redbox Embedder/De-embedder User Handbook

RBVHCMD16

RBVHCMD16

5

Technical Specication For RB-VHCMD16

Front Panel Controls & Indicators

Bank Select: Bank 1, 2, 3 or 4

Bank Channel Select: Channels 1, 2, 3 or 4

Function Select: De-embed or embed

Group Select: Groups 1, 2, 3 or 4

Group Channel Select: Group channels 1,2,3 or 4

Status: 1 x SDI input status LED
2 x SDI output LEDs
4 x Audio group status LEDs

Audio Specications

Output Sample Rate: 48kHz

Input Sample Rates: 32-192kHz, sample rate converted to 48kHz. SRC can
be bypassed.

Input & Output Impedance: 75Ω/110Ω selectable

Signal Level Unbalanced: 1Vp-p ±20%
(un-terminated): Balanced: 6.6Vp-p ±20%

Dynamic Range: 138dB

Distortion and Noise: <-137dB THD+N at 997Hz, ref 0dBFS Connections

De-embed Delay: 3G/HD/SD: 330 us

SRC Input Delay: 192 kHz: 1.3 ms
96 kHz: 1.83 ms
48 kHz: 2.9 ms

Embed Delay: SD: 600 us + SRC Input Delay
3G/HD: 300 us + SRC Input Delay

Digital Audio Outputs: 16 outputs via 8 BNCs or D-type (AES3)

Digital Audio Inputs: 16 inputs via 8 BNCs or D-type (AES3 )

Digital Audio Connectors: 16 x BNC
2 x 25-way D-type socket

Power Supply: Universal ltered IEC, continuously rated 85-264VAC
@47-63Hz, fused, max 13W

Equipment Type

RB-VHCMD16 3G/HD/SD-SDI embedder & de- embedder 16 channel
digital I/O

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55

5

RBVHCMD16

RBVHCMD16

Remote Interface Commands & Responses Protocol

Sonifex SCi remote control software handles all communication with the unit via a
convenient graphical user interface. However, this protocol is provided for those users who
wish to develop their own remote control applications or communicate with the unit using
a text-based terminal program.

Command Format

Commands are case-insensitive and should be terminated in a carriage return character, a
line feed character may be sent but it will be ignored. Further commands sent before the
rst command is acknowledged will be ignored. Responses will be CR & LF terminated.

Remote Control Commands

Command Description Response

BOP:b,o,v Bank Option

b is the bank
o is the option
0 = SRC Disable for input channels 1/2
1 = SRC Disable for input channels 3/4
2 = Input channels 1/2 Termination
3 = Input channels 3/4 Termination
4 = Output channels 1/2 Termination
5 = Output channels 3/4 Termination
v is the option value
0 = o
1 = on

ACK:

COM:b,d,p,s Serial Port Settings

b is the baud rate (9600, 19200, 38400,
57600 and 115200)
d is the data bits (7 or 8)
p is the parity (N, O, E)
s is the stop bits (1 or 2)

ACK:

CTM:m Control Mode

m is the mode
0 = bank
1 = channel

ACK:

DEL:o,g,e Delete Audio Group

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = don’t delete
1 = delete

ACK:

DWN: Initiates a Firmware Update

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Redbox Embedder/De-embedder User Handbook

RBVHCMD16

RBVHCMD16

5

Command Description Response

EMC:o,g,c,e Embed Group Channel Enable

This is only used when operating in
channel mode
o is the output (0 or 1)
g is the group (0 to 3)
c is the channel (0 to 3)
e is the option
0 = o
1 = on

ACK:

EMG:o,g,e Embed Group Enable

o is the output (0 or 1)
g is the group (0 to 3)
e is the option
0 = o
1 = on

ACK:

EMR:o,g[,gc],b[,bc] Embed Route Control

o is the output (0 or 1)
g is the group (0 to 3)
gc is the group channel (0 to 3) – only
in channel mode
b is the bank (0 or 1)
bc is the bank (0 to 3) – only in channel
mode

ACK:

DMC:b,c,e De-Embed Bank Channel Enable

This is only used when operating in
channel mode
b is the bank (0 to 3)
c is the channel (0 to 3)
e is the option
0 = o
1 = on

ACK:

DMB:b,e De-Embed Bank Enable

b is the group (0 to 3)
e is the option
0 = o
1 = on

ACK:

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57

5

RBVHCMD16

RBVHCMD16

Command Description Response

DMR:b[,bc],g[,gc] De-Embed Route Control

b is the bank (0 to 3)
bc is the bank channel (0 to 3) – only in
channel mode
g is the group (0 to 3)
gc is the group channel (0 to 3) – only
in channel mode

ACK:

FPL:e Front Panel Lock

e is the enable option
0 = o
1 = on

ACK:

IPG:b,c,g Input Gain

b is the bank number (0 or 1)
c is the channel (0-3)
g is the gain value 0 to 96
0 = -24dBu and 96 = +24dBu

ACK:

MAC: MAC Address

Returns the MAC address of the unit in
12 hex characters.

MAC:XXXXXXXXXXXX

NET:x.x.x.x,y.y.y.y,z.z.z.z Network Address Settings

x.x.x.x is a valid IP address
y.y.y.y is a valid subnet mask
z.z.z.z is a valid gateway address

ACK:

NOP:o,v Network Options

o is the option number
0 = DHCP
v is the option value
0 = o
1 = on

ACK:

OPG:b,c,g Output Gain

b is the bank number (0 or 1)
c is the channel (0-3)
g is the gain value 0 to 96
0 = -24dBu and 96 = +24dBu

ACK:

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Redbox Embedder/De-embedder User Handbook

RBVHCMD16

RBVHCMD16

5

Command Description Response

SDB:o,e SD Audio Sample Width

o is the output (0 or 1)
e is enable
0 = 20-bit
1 = 24-bit

ACK:

SRQ: Status Request

UID: Unit ID UID:RB-VHEMA8

VER: Version information

M1.m1.b1 is the Firmware version
M2.m2.b2 is the FPGA version

VER:M1.m1.b1, M2.m2.b2

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59

6

COMMON SPECIFICATION

COMMON SPECIFICATION

6 Common Specications For RB-VHEMA8, RB-VHDMA8,
RB-VHCMA4 & RB-VHCMD16

SDI Specication

SDI Input: 1 x BNC, 3G/HD/SD-SDI

SDI Outputs: 2 x BNC, 3G/HD/SD-SDI, Re-clocked

Impedance: 75Ω

Output Alignment Jitter: <0.2UI (3G <0.3UI)

Output Level: 800mV +/- 10%

Return Loss: <15dB at 1500MHz

SDI Supported Standards: 270Mbps, SMPTE-259M-C (SD)

1.485 or 1.4835Gbps, SMPTE-292M (HD)

2.97 or 2.967Gbps, SMPTE-424M (3G), SMPTE-425M-A

Supported Video Formats: 525/59.94 (SMPTE-125M)
625/50 (ITU-R BT.656)
720p/23.98, 24, 25, 29.97, 30, 50, 59.94, 60 (SMPTE-296M)
1035i/59.94, 60 (SMPTE-260M)
1080i/50, 59.94, 60 (SMPTE-274M)
1080p/23.98, 24, 25, 50, 59.94, 60 (SMPTE-274M)
1080pSF/23.98, 24, 25, 29.97, 30 (RP-211)
1080i/50 (SMPTE-295M)
1080p/50 (SMPTE-295M)

Video Delay: SD: 290 pixels / 22 us
HD: 570 pixels / 8 us
3G: 570 pixels / 4 us

Video Delay Control: 525/59.94 0 to 55 frames
625/50 0 to 46 frames
1080p/50 0 to 8 frames
1080p/59.94,60 0 to 10 frames
720p/23.98, 24, 25
1080i/50
1080p/23.98,24,25 0 to 16 frames
720p/29.97, 30
1035i/59.94, 60
1080i/59.94, 60
1080p/29.97,30 0 to 20 frames
720p/50 0 to 33 frames
720p/59.94, 60 0 to 40 frames

Embedded Audio: 24-bit, 48kHz synchronous
SMPTE-272M-C
SMPTE-299M

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COMMON SPECIFICATION

6

COMMON SPECIFICATION

Serial Port: RS232, 9 way D-type

Ethernet Port: 10/100Mbps, RJ-45

Fuse Rating: Anti-surge fuse 2A 20 x 5mm

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): 59cm (W) x 27.5cm (D) x 11cm (H)

23.2” (W) x 10.8” (D) x 4.3” (H)

Weight: Nett: 1.8kg Gross: 2.3kg
Nett: 4.0lb Gross: 5.1lb

* Note that this product is deeper than standard Redboxes

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61

SCI

SCI

7

7 SCi

System Page

Fig 7-1: SCi System Screen

This page is used for the connecting and disconnecting SCi to the unit, updating the rmware
in the units, displaying the current status of the unit and controlling various settings.

Status
Video Input

Shows the current SDI input rate, video format and the audio groups status. When an audio
group is detected in the incoming stream the status is set to PRESENT, and MISSING when that
group is not detected.

Video Output 1 & 2

The two video output status boxes show the audio group status for each output.There are
three states per output and these are described below.

PASS : This audio group is being passed through on this output.
EMBED : This audio group is being embedded on this output.
DELETE : This audio group is being deleted on this output.

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Redbox Embedder/De-embedder User Handbook

SCI

7

SCI

Admin Connection

This displays any connection which has “Administrator” rights to the unit.

Network Status

This displays the current network settings assigned to the unit.

Settings
General
Front Panel Lock

When selected, this control disables the front panel and prohibits any changes to be made
via the front panel. This control is automatically disabled when the unit is powered on.

Channel Control

Enables/Disables the channel control mode.

Front Panel LED Brightness

Increases or decreases the LED intensity on the front panel.

Restore Defaults

Pressing this button will cause the unit to restore all settings to their factory defaults. All
previous settings will be lost. Note: The login details are not reset and are unaected by
this process.

Fig 7-2: Network Settings

Network
Enable DHCP

This enables the unit to receive it’s IP address, subnet mask and gateway settings from a
DHCP server. If one is not available then this should be disabled through the serial port and
a valid static address be entered.

Note: This setting cannot be changed while connected to the unit over Ethernet.

IP Address: Displays the current IP address of the unit. If DHCP is enabled then this will

normally be the IP address supplied by the DHCP server.

Subnet Mask: Displays the current subnet mask for the unit.

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63

7

SCI

SCI

Default gateway: Displays the current default gateway for the unit.

Note: The units are discovered using broadcast packets. If your PC has two network cards,

then there is a limitation in windows that requires the two addresses to be on dierent
subnet addresses.

Updating The Firmware

The rmware will occasionally be updated to add new features or correct any possible
issues that may arise. Check for updates at: http://www.sonifex.co.uk/technical/software

To update the rmware click on the button labeled “Update Firmware” and then select the
downloaded rmware le. Firmware les will always have an “.dwn or dw2” extension. A
progress bar will appear in SCi, indicating how much of the le has been uploaded to the
unit.

When the unit switches to update mode, the unit will continue to operate as normal but
the front panel will become locked. The progress of the update will be displayed on screen
and once complete the unit will return to it’s previous state and operate as normal. To
complete the update the unit must be restarted. Only then will the update be complete.

De-Embed Page

Fig 7-3: SCi De-Embed Screen

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Redbox Embedder/De-embedder User Handbook

SCI

7

SCI

This page allows you to congure the group sources for each of the available De-Embed
banks on the unit. This page is not available on the RB-VHEMA8 unit.

When in bank control mode, only the top group selection box is available for each bank.
This selects the group to de-embed to all the channels in that bank.

When in channel control mode, all of the selection boxes become available, allowing you
to individually select a group and channel for each output.

Bank Enable: This control enables the bank for De-Embedding.
Group/Channel: Selects the group and/or channel for De-Embedding to the bank.
Enable: Individually enables each channel within the bank. Only used in channel control

mode.

Embed Page

Fig 7-4: SCi Embed Screen

The two Embed pages allow you to control embedding for each SDI output. These pages
are not available on the RB-VHDMA8 unit.

When in bank control mode, only the top bank selection box is available for each group.
This selects the bank to embed to all the channels in that group and then channel
assignments are shown in the channel selection boxes.

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65

SCI

7

SCI

When in channel control mode, all of the bank and channel selection boxes become
available, allowing you to individually select a bank and channel to embed to each group
channel.

Embed Enable: This control enables embedding for the selected group.
Bank/Channel: Selects the Embed bank and/or channel to embed to the group.
Enable: Individually enables each channel within the group. Only used in channel control

mode.

Audio Group Delete

Allows the deletion of audio groups on a per output basis. Simply select the group to
enable deletion.

SD 24-Bit Enable: This enables 24-bit embedding in SD. This is selectable on a per output
basis. Before enabling this option, ensure that any receiving equipment is capable of
handling the extended data packets.

Audio Inputs Page

Fig 7-5: SCi Audio Inputs Screen

This page allows you to congure the audio inputs for the available Embed banks. This
page is not available on the RB-VHDMA8 unit.

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Redbox Embedder/De-embedder User Handbook

SCI

7

SCI

Gain Slide Bars: Controls the input gain or attenuation for each input channel. Can be set

from -24 dB to +24 dB in 0.5 dB steps. Double clicking the gain value label at the bottom of
the slide bar will set the gain to 0 dB.
Link: If selected, the gain slide bars are linked together so that changing one will change
the others in that bank.
SRC Disable: Only available on the RB-VHCMD16, these controls allow you to disable
sample rate conversion on each input.
Termination: Only available on the the RB-VHCMD16, these controls select the input
termination from between 75 and 110Ω.

Audio Outputs Page

Fig 7-6: SCi Audio Outputs Screen

This page allows you to congure the audio outputs for the available De-Embed banks.

This page is not available on the RB-VHEMA8 unit.

Gain Slide Bars: Controls the output gain or attenuation for each output channel. Can
be set from -24 dB to +24 dB in 0.5 dB steps. Double clicking the gain value label at the
bottom of the slide bar will set the gain to 0 dB.
Link: If selected, the gain slide bars are linked together so that changing one will change
the others in that bank.

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67

SCI

7

SCI

Termination: Only available on the the RB-VHCMD16, these controls select the output

termination from between 75 and 110Ω.

Delay Page

Fig 7-7: SCi Delay Screen

This page allows control over the video delay through the unit. This control is only
available in the newer units running rmware V2.X.X or greater.

The amount of delay through the unit can be expressed in either lines or frames. The
maximum number of which is determined by the current video format being received by
the unit. When the input rate changes the maximum delay value is updated.

Mode: Selects between Line or Frame delay mode.
Delay Edit: This is where the actual delay valued can be entered. This value is represented

on the slide bar below, which can also be altered to congure the delay value.
Current Delay: This label displays the current delay value active in the unit.

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Redbox Embedder/De-embedder User Handbook

GLOSSARY

GLOSSARY

8

8 Glossary

AES Audio Engineering Society.

Attenuation The reduction of a signal level. Attenuation is usually measured

in dB.

Balanced Audio A way of sending audio over cable that protects it from induced

interference

BNC Bayonet Neill-Concelman connector.

Clipping The onset of severe distortion in the signal path, usually caused

by the peak signal voltage being limited.

dB (decibel) A ratio of two voltages or signal levels, expressed by the

equation.

dB=20LOG(V1/V2).

Adding the sux “u” denotes that the signal is relative to 0.775V
RMS. Adding the sux “v” denotes that the signal is relative to
1V RMS.

Adding the sux “FS” denotes that the signal is relative to the
maximum value of a digital signal.

DHCP Dynamic Host Conguration Protocol is a computer networking

protocol used to retrieve IP address and other conguration
information from a server.

EBU European Broadcast Union

FSD Full Scale Digits - This is the analogue representation of the

maximum digital value that the converter in question can see
before digital clipping occurs.

Gain The degree of amplication, or attenuation, applied to a signal.

IEC International Elecrotechnical Commision - often used to refer to

a mains connectivity standard, i.e. A type of plug/socket similar
to that of a kettle, used on most pro-audio equipment.

ITU International Telecommunication Union.

kHz Kilo Hertz (One thousand cycles per second).

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69

GLOSSARY

8

GLOSSARY

LAN Local Area Network - scheme where several computers on the

same

premises are connected together so that they can exchange
data.

LED Light Emitting Diode (small lights e.g. on computers).

MHz Mega-hertz - One million cycles per second.

NTSC National Television System Committee.

PAL Phase Alternating Line.

PSU Power Supply Unit

SDI Serial Digital Interface. A digital video interface standardised by

SMPTE.

SMPTE Society of Motion Picture and Television Engineers.

SRC Sample Rate Converter.

TCP/IP Transmission Control Protocol / Internet Protocol. Computer

interconnection methodology used on the internet and LANs.

THD The Total Harmonic Distortion is the percentage presence of

signals

outside the measured reference frequency.

U A height measurement for rack-mount equipment:

1U = 1.75 inches
2U = 3.5 inches
3U = 5.25 inches
4U = 7 inches

SD Standard Denition video.

HD High Denition video

3G 3Gpbs High Denition video.

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Redbox Embedder/De-embedder User Handbook

NOTES

NOTES

Redbox Embedder/De-embedder User Handbook

71

NOTES

NOTES

www.sonifex.co.uk

t:[phone]
f:[phone]
[e-mail]