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S2 Digital I/O Analogue
Radio Broadcast Mixer
User Handbook
S2 User Handbook
Revision 2.21 February 2020
©Sonifex Ltd, 2000-2020
All Rights Reserved
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel : +44 (0)1933 650 700
Fax : +44 (0)1933 650 726
Email : sales@sonifex.co.uk or technical.support@sonifex.co.uk
Web : 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 Sonifex Ltd. Sonifex Ltd shall not be liable for any loss or
damage whatsoever arising form 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, or 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 products.
For the latest Sonifex handbook information please visit the Sonifex website at
www.sonifex.co.uk
S2 User Handbook
CO N T E N T S
CON TEN TS
Warranty & Safety Information i
Warranty and Liability i
Returning the Warranty Card iii
Unpacking the S2 iii
Safety of Mains Operated Equipment iv
Fuse Rating iv
Power Cable and Connection iv
WEEE & RoHS Directives - Sonifex Statement v
Reporting Faults vi
1 Introduction 1
Innovative Design 1
Superb Audio Quality and Unquestionable Reliability 3
Features 3
2 Installation Notes 4
Atmosphere 4
Electromagnetic Radiation 4
Dimensions and Cut-Out Sizes 4
Channel Conguration 5
Connectors and Cabling 5
System Block Diagrams 9
Applications 11
Removing & Replacing Channels 13
Connecting A Split Desk 14
3 Power Supply 16
S2-PSU Power Supply (Old Version) 16
Front Panel 16
Rear Panel 17
Safety of Mains Operated Equipment 17
Ordering the Correct Mains Lead 18
Power Cable and Connection 18
Fuse Rating 18
S2-PSU Power Supply (New Version) 19
Front Panel Indicators 21
Rear Panel 22
4 Input Channels 25
S2-CML Mic/Line Input Channel 25
S2-CMM Mic/Mic Input Channel 25
S2-CS Dual Stereo Line Input Channel 25
S2-CSE Dual Stereo Line Input with EQ Channel 26
S2-CSG Stereo Line with Gram Input Channel 26
S2-CDS Digital Dual Stereo Input Channel 26
S2-CDSE Digital Dual Stereo Input with EQ Channel 26
S2-C6SS 6 Way Stereo Line Source Select Channel 26
S2-CT Telco Input Channel 26
S2-CSMM Stereo Mix-Minus Channel 27
S2-PG S2 Penny & Giles Conductive Plastic Fader 27
5 S2-CML Mic/Line Channel With EQ 28
Panel Controls 28
Rear Panel 29
Channel Options, Jumper Settings and Presets 30
S2 User Handbook
CON TEN TS
CO N T E N T S
6 S2-CMM Mic/Mic Channel With EQ 36
Panel Controls 36
Rear Panel 37
Channel Options, Jumper Settings and Presets 38
7 S2-CSE/S2-CS Dual Stereo Line Channel With & Without EQ 43
Panel Controls 43
Rear Panel 44
Channel Options, Jumper Settings and Presets 45
8 S2-CSGE/S2-CSG Stereo Line And Gram Channel With & Without EQ 52
Panel Controls 52
Rear Panel 53
Channel Options, Jumper Settings and Presets 54
9 S2 -CDSE/S2-CDS Digital Dual Stereo Line Channel With & Without EQ 61
Panel Controls 61
Rear Panel 62
Channel Options, Jumper Settings and Presets 63
10 S2-C6SS 6 Way Stereo Line Source Select Channel With EQ 70
Panel Controls 70
Channel Options, Jumper Settings and Presets 72
11 S2-CT Telco Channel With EQ 76
Panel Controls 76
Rear Panel 77
Channel Options, Jumper Settings and Presets 78
12 S2 CSMM Stereo Mix Minus Channel With EQ 83
Panel Controls 83
Rear Panel 84
Channel Options, Jumper Settings and Presets 85
13 Output Channels 92
S2-ODP Digital PGM Output Channel &S2-ODPF Digital PGM Output Channel
With Master Fader 92
S2-ODA Digital AUD Output Channel & S2-ODAF Digital AUD Output Channel
With Master Fader 92
S2-OMC Control Room Monitor Channel 92
S2-OMS Studio Monitor Channel 93
14 S2-ODPF/S2-ODP Digital Output PGM Channel With & Without
Master Fader (Version 1) 94
Panel Controls 94
Rear Panel 95
Channel Options, Jumper Settings and Presets 96
15 S2-ODPF/S2-ODP Digital Output PGM Channel With & Without
Master Fader (Version 2) 101
Panel Controls 101
Rear Panel 102
Channel Options, Jumper Settings and Presets 103
S2 User Handbook
CON TEN TS
CO N T E N T S
16 S2-ODAF/S2-ODA Digital Output AUD Channel With & Without
Master Fader (Version 1) 108
Panel Controls 108
Rear Panel 109
Channel Options, Jumper Settings and Presets 110
17 S2-ODAF/S2-ODA Digital Output AUD Channel With & Without
Master Fader (Version 2) 115
Panel Controls 115
Rear Panel 115
Channel Options, Jumper Settings and Presets 117
18 S2-OMC Control Room Monitor Channel 122
Panel Controls 122
Rear Panel 123
Channel Options and Jumper Settings 124
19 S2-OMS Studio Monitor Channel 128
Panel Controls 128
Rear Panel 129
Channel Options and Jumper Settings 130
20 Meterbridge Modules 134
Meterbridge Module Types 134
Meterbridge Distribution Board 135
S2-MB1-5 Meterbridge Blanking Plates 136
S2-ML Meterbridge Loudspeaker Monitor Panel 136
S2-MVU Meterbridge VU Meter Panel, S2-MPPM PPM Meter Panel
& S2-ML53 LED Meter Panel 137
S2-MPH Meterbridge Phase Meter Panel 139
S2-MTB6 Meterbridge 6 Way Talkback Panel 140
S2-MTBS Meterbridge Station Master Talkback Panel 141
S2-MSB1 Meterbridge Switch Panel With 1 Button 145
S2-MSB3 Meterbridge Switch Panel With 3 Buttons 145
S2-MT Meterbridge Timer Panel 146
Overview 146
Panel Controls 146
Rear Panel 147
Conguring The Timer 147
21 Technical Specications 152
S2 Mixer Weights and Boxed Dimensions 154
Glossary 155
S2 User Handbook
F I G U R E S
FI GU RES
Figures
Fig 1‑1 : S2‑15 Chassis Complete with
Channels. 1
Fig 1‑2 : S2‑7SS Script Space. 2
Fig 2‑1 : Mixer Prole. 4
Fig 2‑2 : Mixer Cut‑Out Details. 5
Fig 2‑3 : XLR Connectors. 6
Fig 2‑4 : RCA Phono Connector. 6
Fig 2‑5 : BNC Connector. 6
Fig 2‑6 : 1/4” Jack Connectors. 7
Fig 2‑7 : 9 Pin & 15 Pin D‑Type
Connectors. 7
Fig 2‑8 : 25 Pin D‑Type Connectors. 8
Fig 2‑9 : 9 Pin D‑Type Power Connectors. 8
Fig 2‑10 : System Block Diagram
(Sheet 1). 9
Fig 2‑11 : System Block Diagram
(Sheet 2). 10
Fig 2‑12 : Using the Sonifex RB‑LC3 to
control an On‑Air Light. 11
Fig 2‑13 : Mixer Bus Cable Slots. 14
Fig 2‑14 : Mixer Bus Cable Screen
Connection. 14
Fig 2‑15 : Cable & Channel Connection. 15
Fig 2‑16 : Meterbridge Interconnection. 15
Fig 3‑1 : S2‑PSU Front Panel. 16
Fig 3‑2 : S2‑PSU Rear Panel. 16
Fig 3‑3 : New S2‑PSU Front Panel. 19
Fig 3‑4 : New S2‑PSU Rear Panel. 20
Fig 3‑5 : S2‑PSUS Front Panel. 21
Fig 3‑6 : S2‑PSUS Rear Panel. 22
Fig 3‑7: New S2‑PSU Diagram. 24
Fig 5‑1 : S2 Mic/Line Input Board
Layout. 32
Fig 6‑1 : S2 Mic/Mic Input Board
Layout. 40
Fig 7‑1 : S2 Dual Stereo Input With &
Without EQ Board Layout. 46
Fig 8‑1 : S2 Stereo Line & Gram With &
Without EQ Board Layout. 55
Fig 9‑1 : S2 Digital Dual Stereo Input
Board Layout. 64
Fig 10‑1 : S2 6 Way Source Selector
Board Layout. 73
Fig 11‑1 : S2 Telco Input Board Layout. 79
Fig 12‑1 : S2 Stereo Mix‑Minus Board
Layout. 86
Fig 14‑1 : S2 Digital PGM Output Board
Layout. 97
Fig 14‑2 : S2 Digital PGM Output With
Fader Board Layout. 98
Fig 15‑1 : S2 Digital PGM Output Board
Layout. 105
Fig 15‑2 : S2 Digital PGM Output With
Fader Board Layout. 105
Fig 16‑1 : S2 Digital AUD Output Board
Layout. 111
Fig 16‑2 : S2 Digital AUD Output With
Fader Board Layout. 112
Fig 17‑1 : S2 Digital AUD Output Board
Layout. 118
Fig 17‑2 : S2 Digital AUD Output With
Fader Board Layout. 118
Fig 18‑1 : Control Room Monitor Board
Layout. 124
Fig 19‑1 : Studio Monitor Board
Layout. 130
Fig 20‑1 : Meterbridge Distribution Board
Layout. 135
Fig 20‑2 : Blanking Plate. 136
Fig 20‑3 : Loudspeaker Monitor Panel. 136
Fig 20‑4 : PPM & True PPM Meter Panel. 137
Fig 20‑5 : VU Meter Panel. 137
Fig 20‑6 : VU & PPM LED Meter Panel. 138
Fig 20‑7 : Phase Meter Panel. 139
Fig 20‑8 : Meterbridge 6 Way Talkback
Panel. 140
Fig 20‑9 : Meterbridge Station Master
Talkback Panel. 141
Fig 20‑10a : S2‑M6SS Panel. 143
Fig 20‑10b : S2‑M6SS Diagram. 144
Fig 20‑11a : S2‑MSB1 S2 Meterbridge
Switch Panel With 1 Button. 145
Fig 20‑11b : S2‑MSB1 Diagram. 145
Fig 20‑12a : S2‑MSB3 S2 Meterbridge
Switch Panel With 3 Buttons. 145
Fig 20‑12b : S2‑MSB3 Diagram. 145
Fig 20‑13 : Meterbridge Timer Panel. 146
S2 User Handbook i
WAR R A N TY & S A F ETY
I N F O RMAT I O N
WARRANTY & SAFE TY INFORMATION
Warranty & Safety Information
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
satised:
(i) notication 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 specied 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 modied 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 benet of any warranty or
guarantee provided by such manufacturer to the Company.
ii S2 User Handbook
WA R R A N TY & S A F E TY I N F O R M AT I O N
WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
(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.
(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 prots 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
specic 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 dened by the Consumer
Transactions (Restrictions on Statements) Order 1976) the statutory rights of the
Purchaser are not aected by these Conditions of Sale.
S2 User Handbook iii
WAR R A N TY & S A F ETY
I N F O RMAT I O N
WARRANTY & SAFE TY INFORMATION
Returning the Warranty Card
In order to register the date of purchase so that we can keep you informed of any design
improvements or modications, it is important to complete the warranty registration
document that is enclosed and return it to Sonifex Ltd in the UK, or register online at
www.sonifex.co.uk/register
For your own records you should write down the serial number of both the power supply
and the mixer chassis (2 for a split desk).
1st Mixer Serial Number
2nd Mixer Serial Number
(split desk only)
Power Supply Serial Number
Unpacking the S2
Each product is shipped in protective packaging and should be inspected for damage.
before use. Where an item is found to have transit damage, notify your supplier 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.
iv S2 User Handbook
WARRANTY & SAFE TY INFORMATION
WAR R A N TY & S A F ETY
I N F O RMAT I O N
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 specied by
use of the CE Mark.
The power supply is rated to 95 ‑ 265VAC at 47 – 63Hz with a fuse of 2A.
Warning: There are no user serviceably parts inside the machine. If you should ever
need to look inside the unit, always disconnect the mains supply before removing the
equipment covers.
Fuse Rating
The product is supplied with a single fuse in the live conducting path of the power‑in feed
at the power supply. 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.
Power Cable and Connection
An IEC power connector is supplied with the product, which has a moulded plug attached –
this is a legal requirement. If no moulded plug has been supplied with your product, please
contact your supplier, because an IEC connector is always supplied from the
Sonifex factory.
If for any reason, you need to use the product with a dierent 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)
S2 User Handbook v
WA R R A N TY & S A F E TY I N F O R M ATI O N
WA R R A N T Y & S A F E T Y
I N F O R M AT I O N
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 identied 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 aected
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 oered as RoHS compliant, or LF, only after sucient 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 identication of
RoHS compliance. Thus whilst every eort is made to ensure compliance, Sonifex Ltd makes
no warranty, or certication, or declaration of compliance concerning said components.
Sonifex Ltd denes “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.
vi S2 User Handbook
Reporting Faults
Although this Sonifex product is manufactured to the highest standards, it is possible that
minor faults may appear in the equipment over its normal lifetime. If you nd any problems
with the product, please contact your Sonifex distributor, or contact Sonifex directly at the
following address, or fax with a copy of this completed sheet :
To : From:
Sonifex Ltd, Name
61, Station Road, Position
Irthlingborough, Company
Northants. Address
NN9 5QE, UK
Tel : +44 (0)1933 650 700 Tel
Fax : +44 (0)1933 650 726 Fax
Email : technical.support@sonifex.co.uk Email
For the Serial No. of your machine, see the
back panel of the unit.
Serial No.
Please describe the error in as much detail as possible (for example what you were doing
when the problem occurred, what actually happened, etc)
Description of Error
Also, if you have any suggestions for additions or upgrades to the unit , we would like to
hear what they are :
Additions that I Would Like to See
R E P OR TI N G A FAU LT
RE POR TIN G A FAU LT
S2 User Handbook 3
I N T R O D U C T I O N
I N T R O D U C T I O N
1
Superb Audio Quality and Unquestionable Reliability
• The S2 uses the latest Crystal semiconductor technology to allow input and output of
digital audio signals up to 24 bit, 96kHz sample rate.
• The analogue signal paths use low noise circuitry to provide superb audio
performance well capable of satisfying radio listeners worldwide.
• The high reliability and build quality of S2 minimizes the chance of failure, avoiding
lost air‑time. Each channel is individually checked twice before being assembled into
the nished chassis and the whole unit is tested before shipping.
• ALPS long throw 100mm faders give a smooth, repeatable response and the Neutrik
XLR connectors used are an industry standard.
• The use of VCAs controlled by the faders ensures tight stereo tracking and eliminates
mechanical and electronic noise.
• S2 has a separate 1U power supply providing regulated, ripple‑free power to
the mixer.
• High quality stainless steel is used for the chassis and screws to prevent corrosion in
high humidity environments.
Features
• Fully modular build with six dierent frame sizes available.
• Optional script space.
• Digital and analogue inputs.
• Digital and analogue PGM and AUD outputs as standard.
• Mono analogue output.
• True cleanfeed output on each telco input.
• Stereo cleanfeed channel available.
• VCA faders.
• VU and PPM metering.
• Optional master faders on outputs for production use.
• Dual digital timers with real time clock.
• Separate control room and studio monitor channels.
• Optional RIAA inputs for dual stereo channel.
S2 User Handbook 5
Fig 2‑2 : Mixer Cut‑Out Details.
Channel Conguration
Each of the channels can be re‑congured by jumpers, which are displayed in the “Channel
Options and Jumper Settings” section of each chapter. You should ensure that you are
thoroughly familiar with the settings available for each channel before attempting
installation of the mixer. This is because some options may involve moving jumpers on
several channels to change the conguration of the mixer.
Connectors and Cabling
Many of the problems associated with installing and maintaining a mixing console are due
to the use of poor cables or faulty connections. It is recommended that, wherever possible,
pre‑wired cables are purchased from recommended manufacturers. If you need bespoke
cables making, please ensure that a qualied engineer carries out the work.
I N STA L L ATI ON N OTE S
IN STALLATION NOTES
2
196mm S2-5
387mm S2-10
577mm S2-15
768mm S2-20
958mm S2-25
1149mm S2-30
Woodwork
Front Edge
506mm
40mm 276mm
Woodwork
Rear Edge
6S2 User Handbook
The main types of connectors used with the S2 mixers are the following:
XLR 3 Pin Connectors
The following diagram shows the pin details for the 3 pin XLR sockets and plugs:
Fig 2‑3 : XLR Connectors.
RCA Phono Connector
This connector is used on the Stereo Gram Channel and the S/PDIF inputs on the digital
input/output channels.
Fig 2‑4 : RCA Phono Connector.
BNC Connector
This connector is used for the Word clock inputs on the PGM and AUD output channels.
Fig 2‑5 : BNC Connector.
I N S TA L L AT I O N N O T E S
I N S TA L L AT I O N N OT E S
2
Pin 2. Hot (In Phase) Signal
Pin 1. Ground (Screen) Signal
Pin 3. Cold (Out Of Phase) Signal
3 Pin Socket
(Female)
Line, Mic &
AES/EBU Inputs
C/F, L/R Stereo &
AES/EBU Outputs
3 Pin Socket
(Male)
Pin 2. Hot (In Phase) Signal
Pin 1. Ground (Screen) Signal
Pin 3. Cold (Out Of Phase) Signal
Inner
. Hot (In Phase) Signal Outer. Ground (Screen) Signal
Gram & S/PDIF
Inputs
RCA Phono
(Female)
Inner
. Hot (In Phase) Signal Outer
. Ground (Screen) Signal
Word Clock
Inputs
BNC (Female)
S2 User Handbook 7
6.35mm ‘A’ Gauge Stereo Jack Plugs
‘A’ Gauge Stereo Jack Plugs can be connected as follows:
Fig 2‑6 : 1/4” Jack Connectors.
D Type Connectors
Several dierent D type connectors are used on the S2. A 9 pin plug is used for the remotes
on input channels and external inputs on monitor channels. A 15 pin socket is used for the
analogue outputs and mute relays on the output channels. A 25 pin socket is used for the
audio inputs, and a 25 pin plug for the remotes, on the 6 way stereo select channel. A 9 pin
plug & socket is used for the power connections from the PSU to the mixer.
Fig 2‑7 : 9 Pin & 15 Pin D‑Type Connectors.
I N STA L L ATI O N N OTE S
IN STALLATION NOTES
2
Tip - Left Signal
Ring - Right Signal
Sleeve - Ground (Screen) Signal
Tip - T/B Signal
Ring - Control Signal (T/B In)
Sleeve - Common
¼“ ‘A’ Gauge Stereo Jack Plug used for T/B in and T/B Out
¼“ ‘A’ Gauge Stereo Jack Plug
used for Headphones and Monitors
9 Pin D-Type Plug used
for Remotes and Ext Inputs
Pin 6 Pin 15 Pin 8
Pin 1
Pin 1
Pin 9
Pin 9
Pin 5
15 Pin D-Type Socket used for Analogue
Outputs and Mute Relays
10 S2 User Handbook
Fig 2‑11 : System Block Diagram (Sheet 2).
I N S TA L L AT I O N N OT E S
INSTALLATION NOTES
2
Output Channels Diagram - ODP,ODPF,ODA, and ODAF
FROM LEFT
PGM BUS
ANALOGUE PGM
(AUD) OUTPUT LEFT
ANALOGUE PGM
(AUD) OUTPUT
RIGHT
ANALOGUE MONO
OUTPUT
AES/EBU PGM
(AUD) OUTPUT
SPDIF PGM
(AUD) OUTPUT
SPDIF SYNC
AES/EBU SYNC
WORDCLOCK
FROM RIGHT
PGM BUS
FROM CPU
FROM
MUTES BUS
FROM L&R
PFL
BUS
FROM
T
ALKBACK
BUS
AES/SPDIF
OUTPUT
SELECT
METER
SELECT
A/D
CPU
PGM
AUD
CR
MON
S2-ODP ONLY
DIGITAL
AUDIO
INTERFACE
AES/SPDIF
METERBRIDGE
FADER OPTION
L R L RL R 1 2
PGM
O/P
AUD
O/P
PFL
O/P
T/B
O/P
TIMERS
REV T/B
1
3
2
1
2
1
2 33
A
B
TO
S2-CT
TELCO
CLEANFEED
SELECTION
L&R
EXTERNAL
INPUTS
C/ROOM/
STUDIO
MONITORS
PRES/STUDIO
HEADPHONES
REV T/B
TALKBACK
OUTPUT
FROM MUTES
BUS
CPU
PGM
AUD
EXT 1
EXT 2
AUTO
CUE
AUTO
CUE
SPLIT
CUE
STUDIO
T/B
TO MONITOR METERS
STUDIO C/ROOM
LEVEL
LEVEL
CUE/PFL MUTE/
DIM LKBACKTA
GLOBAL T/B
L R L RL R 1 2
PGM
O/P
AUD
O/P
PFL
O/P
T/B
O/P
TIMERS
REV T/B
TO
CLEANFEED
LEFT
(S2-CSMM)
TO
CLEANFEED
RIGHT
(S2-CSMM)
PFL METERS PHASE METER
PGM METERS
CUE/PFL
TALKBACK
LOUDSPEAKER
MONITOR METERS
S2-MPPM DUAL PPM METER PANEL
S2-MPPT TRUE DUAL PPM METER PANEL
S2-MVU DUAL VU METER PANEL
S2-ML53 DUAL LED BAR GRAPH METER
S2-MPH PHASE METER PANEL
CUE/PFL REV T/B
REV T/B
S2-ML
S2-MT
DUA TIMER, CLOCK AND DATE DISPLAYL
FROM MONITOR OUTPUT
L R L RL R 1 2
PGM
O/P
AUD
O/P
PFL
O/P
T/B
O/P
TIMERS
REV T/B
MODERESET
START
STOP
MODERESET
START
STOP
Output Channels Diagram - OMS and OMC
Meterbridge Diagram - MPPM/T, PPM, MVU, VU, ML53, MPH, MTBS, MTB6, MT, and ML
12 S2 User Handbook
Enabling Talkback On Mic Modules
Talkback is used for o‑air communication between studios, or between the Presenter,
the Studio guests and callers on the telephone line. The presenter’s microphone module
can be congured to be the talkback source to the studio guests and telephone callers
by connecting pin 9 to pin 7 on the presenters Mic/Mic or Mic/Line modules remote
connector. This talkback audio also appears on the talkback output connector on the control
room monitor module as a continuous feed. It can be used for routing talkback to other
destinations.
Cough Switch and Talkback On Mic Modules
A cough switch is used to momentarily mute the output of a live microphone channel
when you wish to clear your throat. Closing pin 8 to pin 7 on a Mic/Mic or Mic/Line modules
remote connector performs the cough function when the module is live, i.e. when the
mic input is selected, the channel is routed, the channel is ON and the fader is up. This
function can be used for the presenters mic but is more usually only provided for the studio
microphones.
The cough switch performs the function of talkback to the presenter when the module is
not live. In this case, when a studio guest presses his cough switch the microphone module
is put in to PFL, which routes the pre fade mic signal to the control room monitoring where
it can be heard by the presenter via his headphones or monitor loudspeakers. The presenter
can talk back to the studio by using the Studio T/B button situated on the studio monitor
module. For the presenter to hear the talkback from the studio automatically, either or both
the control room monitor loudspeakers and the headphones should be set to Auto Cue/
PFL. While the Cough switch is enabled, if PGM and/or AUD are enabled then they will ash
quickly to indicate that Cough is enabled.
Using Voice Processors On Mic Channels
The Insert point on Mic input channels is useful for hooking up an outboard eects unit
to be used with the microphone, for example, a voice processor. The insert send signal
is always available as a line level balanced output. The insert return signal is enabled by
placing jumper J10 on the channel, over pins 1 & 2. The insert return function is disabled in
Line mode except when jumper J5, Mic on Line Input, is set.
Remote Start and Stop
When an input module is being used in line mode (e.g a Mic/Line on input 2 or a Dual Stereo
module) it is usually necessary to control external equipment by means of the remote start
and stop functions. See the relevant modules for pin out details.
If your equipment has a remote facility for “Fader Start” then this normally requires a
latching contact to start, opening the contact will cause the equipment to stop. In this case
it is only necessary to use the start remote, but you will need to make the contact latching
by setting a jumper (See the relevant module for jumper settings).
I N S TA L L AT I O N N OT E S
INSTALLATION NOTES
2
S2 User Handbook 13
If your equipment has remote facilities for “Play”, “Stop”, “Re‑Cue”, it will be necessary to
use both start and stop remotes. In this case you will need a momentary start. It should be
noted that pins 2 & 5 on the input modules remote connector is common to start and stop
and should be connected to the common pins on your equipments remote connector. Pins
1 & 4 on the remote should be connected to the “Play” pins on your equipment, and pins 3 &
6 should be connected to the “Stop” pins. Sometimes it may be useful to connect the mixer
stop remote to the “Re‑Cue” pin.
Adding Telco Channels
When adding a Telco channel to the mixer there are certain requirements that need to be
met for the correct operation of the cleanfeed buses. Depending on whether you have 1,
2 or no telco channels tted, you may have to alter the cleanfeed bus termination on the
digital PGM and AUD Output channels. If the console is supplied without Telco channels
then both cleanfeed mix buses will need to be terminated. With one Telco channel, only the
unused cleanfeed bus will require termination. With two Telco channels no termination is
required. Please refer to that section of the handbook for further info.
The jumpers J11 and J12 on the Telco channel determine which of the two true cleanfeed
buses the channel uses. There can only be a maximum of two telco channels in each mixer
and they must not share a cleanfeed bus. If you have only one telco channel, the jumpers
are tted over pins 1 & 2 of J11, using cleanfeed bus 1. If a second telco channel is present in
the mixer, then this second channel will have the jumpers tted over pins 2 & 3 of J12, using
cleanfeed bus 2 only.
Removing & Replacing Channels
When installing the mixer it may be necessary to change certain characteristics of a channel
to suit your specic needs, e.g. jumper settings, internal gain pots, etc. To do this the channel
must be removed from the chassis to gain access to the jumpers and pots. Particular care
must be taken when performing this procedure.
To remove a channel, rst disconnect any attached cables from the rear of the channel, and
remove the two screws from the front panel of the channel. The channel should now be
lifted slightly from the chassis with the aid of springs situated at the two xing points, with
enough room to grab both ends of the channel, so that you can carefully lift it from the
chassis. Be careful not to lay the channel across the mixer, as the underside of the channel
PCB may cause scratching.
Once the necessary changes have been made, ensure that the main bus cable is still rmly
attached and carefully position the channel directly above the space where it was removed
from, holding it at a tilt, so that the fader end of the mixer will make contact with the
chassis rst. Slowly lower it down into the mixer, making sure that the main bus cable is
formed correctly and the slack does not get trapped beneath the channel. Once the fader
end has made contact, continue lowering the rear end of the channel down until that also
makes contact, ensuring that it is ush with the channels beside it. Replace the screws, and
reattach the cables to the rear of the channel.
INSTALL ATION NOTES
2
I N S TA L L AT I O N N OT E S
14 S2 User Handbook
Connecting A Split Desk
There are three cables used when connecting an S2 mixer split desk conguration. A 16
way IDC cable which connects the two meterbridge distribution boards, A 60 way jacketed
IDC cable which connects the two main mixer bus cables and an earth braid cable which
connects the two chassis’. When shipped, these three cables will already be attached to
one of the mixers and will require attaching to the other mixer. The procedure to do this is
described below.
Connecting The Mixer Bus Interconnect Cable
On the under side of the mixer chassis are two slots at each end. These are where the
mixer bus interconnect cable feeds through (Fig 2‑13). The rst thing to do is to remove
the channel from the end of the mixer where the cable is going to be connected. If the
interconnect cable is to be connected to the left handside mixer then this will be the right
most channel of the mixer. If the interconnect cable is to be connected to the right handside
mixer then this will be the left most channel.
Fig 2‑13 : Mixer Bus Cable Slots.
Once the channel has been removed,
pull the cable through the slot making
sure that the cable has not twisted
coming from the rst mixer. Pull it
through so that about 2 inches (5 cm) of
the cable jacketing is inside the chassis.
Connect the screening wire to one of
the clamping plate screws and screw in
the plate to the underside of the chassis
to secure the cable, and stop it from
moving (Fig 2‑14).
Fig 2‑14 : Mixer Bus Cable Screen Connection.
I N S TA L L AT I O N N OT E S
INSTALLATION NOT ES
2
S2 User Handbook 15
Then loop the cable back over itself and connect the 60 way IDC plug to the main mixer
bus (Fig 2‑15). Now reconnect the channel that was removed, to the free 60 way IDC socket,
using the procedure described on page 13 for removing and replacing channels.
Fig 2‑15 : Cable & Channel Connection.
Connecting The Meterbridge Interconnect Cable
To connect this cable some of the panels on the meterbridge will require removing to locate
the meterbridge distribution board. Once located, nd the IDC header labelled on the
distribution PCB as “From Output Module”. At the back of the mixer chassis there is a slot just
above where the output modules sit. Feed the Meterbridge Interconnect cable through the
slot and plug it into the header. Once this has been done, replace the meterbridge panels
that were removed earlier to locate the distribution board.
Fig 2‑16 : Meterbridge Interconnection.
Connecting The Earth Braid
As with the other cables, this will already be connected to one of the split desks. Simply
connect the other end of the cable to the other desk, by unscrewing the outer M4 nut and
removing the shakeproof washer. Then place the solder tag of the earth braid cable on the
bolt and then replacing the shakeproof and M4 nut.
I N S TA L L AT I O N N OT E S
INSTALLATION NOTES
2
S2 User Handbook 17
Rear Panel
It is important to connect the mains supply in accordance with the information given.
Ensure that the rear panel mains voltage statement on the separate power supply indicates
that your equipment is suitable for your mains supply voltage and that the mains supply
fuse is correctly rated. The fuse as supplied is correct for the voltage setting.
The power cable supplied carries an EARTH conductor, which is connected internally to the
equipment chassis ground. This connection through a properly wired power Connector
is essential for safe operation. Disconnection of this earth connection may render the
Equipment unsafe, with a consequential possible electrical shock hazard from exposed
metallic parts.
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 specied by
use of the CE Mark.
This equipment will operate in a horizontal position.
WARNING: The power must be switched o at the supply or the power lead must be
disconnected before attempting to remove the panels or cover. Removal of the panels
and cover can expose dangerous voltages. The cover is connected to the chassis ground
of the equipment by means of xing screws. It is essential to maintain this earth-ground
connection to maintain a safe operating environment.
In addition, to provide an Electromagnetic Shield, contact between the cover and the
chassis must be maintained when in use.
The power supply is switchable between 230V & 115V.
Warning: There are no user serviceably parts inside the machine. If you should ever
need to look inside the unit, always disconnect the mains supply before removing the
equipment covers.
The rear panel of the equipment carries the Serial Number of the machine. The operating
voltage of the S2 power supply is selectable at the fuse carrier on the power inlet port of the
S2‑PSU unit. Ensure that the machine operating voltage is correct for your mains
power supply.
P O W E R S U P P LY
POWER SUPPLY
3
S2 User Handbook 19
Voltage Setting Fuse Rating
115V 3.15A (Anti‑surge – 20 x 5mm)
230V 3.15A (Anti‑surge – 20 x 5mm)
Power Connector
This 9 pin D type plug (see Fig 2‑9) is used to supply power to the Mixer, and has the
following connections;
Pin A1: +16V.
Pin A2: ‑16V.
Pin A3: 0V.
Pin A4: +VD.
Pin 1: +16V Sense.
Pin 2: ‑16V Sense.
Pin 3: 0V Sense.
Pin 4: +VD Sense.
Pin 5: +48V.
+VD: Digital power rail.
V Sense: Voltage level sensing signals.
Dimensions (S2-PSU)
(Raw): 48cm (W) x 24.3cm (D) x 8.8cm (H)
19” (W) x 10” (D) x 3.5” (H)
(Boxed): 51cm (W) x 41.5cm (D) x 17cm (H)
20” (W) x 16.3” (D) x 6.7” (H)
Weight (S2-PSU)
Nett: 6kg (13.2lbs) Gross: 7.8kg (17lbs)
S2-PSU Power Supply (New Version)
Fig 3‑3 : New S2‑PSU Front Panel.
The new 1U sized S2‑PSU is pin compatible with the original 2U sized S2‑PSU power
supply,so can be used as a straight like‑for‑like swap, using the same connection cables. The
new units have a serial number greater than 16852 and have a great deal of improvements
on the original design:
P O W E R S U P P LY
POWER SUPPLY
3
20 S2 User Handbook
POWER SUPPLY
3
P O W E R S U P P LY
Increased power eciency, so that less power is drawn and therefore less heat generated.
An improved over‑current and over‑voltage protection system to give increased reliability
and stability.
A dynamically controlled quiet cooling fan which is only switched on when required by the
load conditions and temperature (greater than 50° C).
A new 1U chassis so it takes up less space in a 19” rack.
A fan failure indicator LED on the front panel so that in the unlikely event that the cooling
system should fail, a visible warning is given with the LED ashing red.
Fig 3‑4 : New S2‑PSU Rear Panel.
Important Notes:
Please note that connections to the mixer should be made before powering up the ALL
S2‑PSU, otherwise this could trigger the over‑current protection. If the over‑current
protection kicks in, then the unit needs to be powered down for approximately a minute to
reset the over‑current protection.
This 1U sized S2‑PSU is incompatible with S2‑PSUS power supply switchers with a serial
number of 16948 or earlier. The S2‑PSUS has been redesigned (from April 2011) to work
with both 1U and 2U S2‑PSU power supplies, but this is only for S2‑PSUS switchers with a
serial number higher than 16948. Contact Sonifex if you need to replace a 2U S2‑PSU and
are using an S2‑PSUS power supply switcher ‑ either a new version of the S2‑PSUS will be
required or a 2U S2‑PSU power supply will need to be specically requested.
The fan is started and run briey every few minutes to check that it is in operation and to
ensure that it doesn’t freeze through lack of use over time.
Dimensions (S2-PSU)
(Raw): 48.3cm (W) x 23cm (D) x 4.4cm (H)
19” (W) x 9” (D) x 1.7” (H)
(Boxed): 51cm (W) x 41.5cm (D) x 17cm (H)
20” (W) x 16.3” (D) x 6.7” (H)
Weight (S2‑PSU) Nett: 2.9kg Gross: 4.3kg
Nett: 6.4lbs Gross: 9.5lbs
S2 User Handbook 21
POWER SUPPLY
3
P O W E R S U P P LY
S2-PSUS Dual Power Supply Switcher
The S2‑PSUS is a passive power switcher which takes the power feeds from 2 x S2‑PSU
units and switches between them in the event of failure. Two trailing leads 0.5 m in length
connect to 2 x S2‑ PSU units. With LED failure indicators and GPI alarms the S2‑PSUS is the
perfect dual redundant power supply module.
Functionality
As an intelligent unit, the S2‑PSUS detects changes in the DC levels supplied to the S2.
A failure in any one of the +VD, +VE, ‑VE or +48V power rails, dened by calibrated limits,
results in switching to the secondary power unit. If the glitch was temporary and the
primary power unit recovers, the S2‑PSUS will switch back. Once it has switched back, the
unit has to remain stable for one minute for the power supply to be deemed stable again.
A failure count is incremented every time the unit returns and fails within the minute period.
Once three failures have occurred the rail is no longer used and the unit will only use the
secondary power supply. If the secondary power supply fails, the unit will enter ‘Joint Mode’
and attempt to complete the power rail set from the primary power supply. Again, if the
secondary power supply recovers, it is given a minute to stabilize. Three or more failures
on the same rail will result in a permanent failure to that rail. If the same rail fails in both
supplies, the unit will cut all power to the mixer except in the case of the phantom power
+48V rail.
Front Panel Indicators
Fig 3‑5 : S2‑PSUS Front Panel.
Two indicator LEDs on the front of the unit are used to display which power supply is
currently supplying the mixer. There are also eight LEDs that display the status for each of
the rails.
The LED will stay illuminated when the rail is stable. If the LED ashes quickly (1/4 second),
then the level is too high on that rail or if the LED ashes slowly (1/2 second), then the level
is too low on that particular rail. If the unit is in ‘Joint Mode’, then both active LEDS will be
on. In this case, if the same rails are good on both, the primary S2‑PSU will be supplying the
power for those rails.
22 S2 User Handbook
Resetting the S2-PSU States
The S2‑PSUS detects when a power supply has been removed or unplugged. If this occurs,
the S2‑PSUS assumes the power supply has been serviced and all failure statistics are
refreshed. If a rail has failed permanently, removing or unplugging the supply will allow the
rail to be fully tested again, once reinstated. Removing both power supplies will reset the
S2‑PSUS, indicated by the alternating front led sequence.
Usage Advice
The unit has been designed to give the user as little down time as possible. If an S2‑PSU
rail reaches an unrecoverable state, please remove and service it. If an extreme fault occurs
(total loss of power) on the +VD rail, the switch over can cause a reset of digital modules
which will result in a small audio glitch.
Rear Panel
Fig 3‑6: S2‑PSUS Rear Panel.
There are alarm outputs on the rear of the unit, created using opto‑isolator switches.
These alarm outputs mimic those on the front panel and there is also an alarm relay which
operates as a warning for total unit failure. This will come on if the both power supplies
have failed.
Power Input Connectors
Two trailing leads 0.5m in length are used to connect 2 x S2‑PSU units to the power switcher.
Power Output Connector
This 9 pin D type connector (see Fig 2‑9) is used to route power to the Mixer from either the
master or slave power supply. It has the same connections as the output from the PSU (see
above).
Alarm & Status Connector
This 25 pin D type socket provides alarm and status output for the power switcher and has
the following connections;
Pin 1: 0V.
Pin 2: Opto isolated +VE master alarm NPN collector.
Pin 3: Opto isolated +VE master alarm NPN emitter.
Pin 4: Opto isolated +VE slave alarm NPN collector.
P O W E R S U P P LY
POWER SUPPLY
3
S2 User Handbook 23
Pin 5: Opto isolated +VE slave alarm NPN emitter.
Pin 6: Opto isolated ‑VE master alarm NPN collector.
Pin 7: Opto isolated ‑VE master alarm NPN emitter.
Pin 8: Opto isolated ‑VE slave alarm NPN collector.
Pin 9: Opto isolated ‑VE slave alarm NPN emitter.
Pin 10: Opto isolated +VD master alarm NPN collector.
Pin 11: Opto isolated +VD master alarm NPN emitter.
Pin 12: Opto isolated +VD slave alarm NPN collector.
Pin 13: Opto isolated +VD slave alarm NPN emitter.
Pin 14: Opto isolated +48 master alarm NPN collector.
Pin 15: Opto isolated +48 master alarm NPN emitter.
Pin 16: Opto isolated +48 slave alarm NPN collector.
Pin 17: Opto isolated +48 slave alarm NPN emitter.
Pin 18: Opto isolated master active NPN collector.
Pin 19: Opto isolated master active NPN emitter.
Pin 20: Opto isolated slave active NPN collector.
Pin 21: Opto isolated slave active NPN emitter.
Pin 22: Master alarm relay contact 1 (makes to pin 23).
Pin 23: Master alarm relay contact 2 (makes to pin 22).
Pin 24: 0V.
Pin 25: 0V.
Dimensions (S2-PSUS)
(Raw): 48cm (W) x 23cm (D) x 4.4cm (H)
19” (W) x 9” (D) x 1.7” (H)
(Boxed): 55cm (W) x 39.3cm (D) x 8.5cm (H)
21.6” (W) x 15.5” (D) x 3.4” (H)
Weight (S2-PSUS)
Nett: 1.58kg (3.5lbs) Gross: 2kg (4.4lbs)
Important Notes:
Note 1: S2‑PSU units manufactured before June 2006 will need to be modied for use with
the S2‑PSUS. Contact Sonifex with the serial number of your unit if you wish to add‑on the
S2‑PSUS power supply switcher.
Note 2: The S2‑PSUS has been redesigned (from April 2011) to work with both the new 1U
S2‑PSU and older 2U S2‑PSU power supplies. S2‑PSUS units with a serial number greater
than 16948 are able to work with either S2 power supply, but serial numbers lower than this,
only operate with the 2U S2‑PSU.
Please Note:
There are two jumpers inside the unit to congure it to work with the two types of S2 Power
Supply that have been manufactured: the original 2U 19” rack power supply and the new
universal input voltage 1U 19” rack style power supply.
P O W E R S U P P LY
POWER SUPPLY
3
Produktspecifikationer
| Varumärke: | Sonifex |
| Kategori: | Inte kategoriserad |
| Modell: | S2-MTB6 |
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