Mutec MC-1.1 User manual

ALL SOFTWARE AND HARDWARE PRODUCT NAMES ARE REGISTERED TRADEMARKS OF THEIR RESPECTIVE OWNERS.
WE RESERVE THE RIGHT TO CHANGE TECHNICAL DETAILS WITHOUT PRIOR NOTICE. ©MUTEC GmbH 2002
•
7045-014
WWW.i˙CLOCK-NET.DE
FON 0049-(0)30-746880-0
FAX [phone]
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
REDUNDANT MULTIPLE CLOCK SYNTHESIZER
AND VIDEO REFERENCE GENERATOR
REDUNDANT MULTIPLE CLOCK SYNTHESIZER
AND VIDEO REFERENCE GENERATOR
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VERSION 1.0
VERSION 1.00
OPERATING MANUAL
OPERATING MANUAL
OPERATING MANUAL
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PRELIMINARY
UNI-DIRECTIONAL DIGITAL AUDIO
FORMAT CONVERTER
BI-DIRECTIONAL DIGITAL AUDIO
FORMAT CONVERTER

SAFETY INSTRUCTIONS
General instructions
To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture, direct
sunlight or excessive heat from sources such as radiators or spotlights. No user serviceable parts are in-
side. Repair and maintenance must be carried out by qualified personnel authorized by MUTEC GmbH!
The unit has been designed for operation in a standard domestic environment. Do NOT expose the unit
and its accessories to rain, moisture, direct sunlight or excessive heat produced by such heat sources as
radiators or spotlights! The free flow of air inside and around the unit must always be ensured.
Initial operation
Prior to the initial operation of the unit, the appliance, its accessories and packaging must be
inspected for any signs of physical damage that may have occurred during transit. If the unit has
been damaged mechanically or if liquids have been spilled inside the enclosure, the appliance may
not be connected to the mains or must be disconnected from the mains immediately! If the unit is
damaged, please do NOT return it to MUTEC GmbH, but notify your dealer and the shipping com-
pany immediately, otherwise claims for damage or replacement may not be granted.
If the device is left in a low-temperature environment for a long time and then is moved to a room-
temperature environment, condensation may occur on the inside and the exterior. To avoid short-
circuits and flashovers, be sure to wait one or two hours before putting the device into operation.
Power supply
The device contains a self-adapting wide-range power supply supporting the majority of global stan-
dard line voltages within a range of 90…250 V, with no need for making adjustments. Make sure that
your line-voltage source provides a supply voltage within the specified range. In addition, make sure
that the device is properly grounded via the local electric installation.
Please use the enclosed power cord (see packaging) to connect the unit to the mains. Switch the
unit off before you attempt to connect it to the mains. Connect the power cord to the unit, then
to a standard 3-pin mains outlet. To draw the power cord, never pull on the cable but on the mains
plug!
The unit must be grounded during operation!
For information on the power-inlet wiring, refer to the »Wiring of connectors« section in the
appendix. Disconnect the device from the mains when not using it for an extended period!
This symbol, an exclamation mark inside a triangle,
alerts you to important operating or safety instructions
in this manual.
This symbol, a flash of lightning inside a triangle, alerts
you to the presence of uninsulated dangerous voltage
inside the enclosure - voltage that may be sufficient to
constitute a risk of shock.
Declaration of Conformity
We herewith confirm that the product complies with the European
Commission’s standards on electromagnetic compatibility.
Interference emission: EN 50081-1, 1992
Resistance to interference: EN 50082-1, 1992
Presupposed as operation condition is that all clock outputs are con-
nected with high-quality and good shielded BNC 75 ohms cable.
!
RISK OF
ELECTRICAL SHOCK!
CAUTION
!
WARRANTY REGULATIONS
§1 Warranty
MUTEC GmbH warrants the flawless performance of this product to the original buyer for a period of two (2) years from the date of purchase. If any failure occurs within
the specified warranty period that is caused by defects in material and/or workmanship, MUTEC GmbH shall either repair or replace the product free of charge within 90
days. The purchaser is not entitled to claim an inspection of the device free of charge during the warranty period. If the warranty claim proves to be justified, the product
will be returned freight prepaid by MUTEC GmbH within Germany. Outside Germany, the product will be returned with the additional international freight charges payable
by the customer. Warranty claims other than those indicated above are expressly excluded.
§2 Warranty transferability
This warranty is extended exclusively to the original buyer who bought the product from a MUTEC GmbH specialized dealer or distributor, and is not transferable to anyone
who may subsequently purchase this product. No other person (retail dealer, distributor, etc.) shall be entitled to give any warranty promise on behalf of MUTEC GmbH.
§3 Waranty regulations
The return of the completed registration card, or online registration on one of the websites specified below, is a condition of warranty. Failing to register the device before
returning it for repair will void the extended warranty.
The serial number on the returned device must match the one stated on the registration card or entered during online registration. Otherwise, the device will be
returned to the sender at the sender’s expense.
Any returned device must be accompanied by a detailed error description and a copy of the original sales receipt issued by a MUTEC dealer or distributor.
The device must be returned free of shipping expenses and in the original package, if possible; otherwise, the sender has to provide comparably protective packaging.
The sender is fully responsible for any damage or loss of the product when shipping it to MUTEC GmbH.
§4 Limitation of warranty
Damages caused by the following conditions are not covered by this warranty:
Damages caused by every kind of normal wear and tear (e.g. displays, LEDs, potentiometers, faders, switches, buttons, connecting elements, printed labels, cover
glasses, cover prints, and similar parts).
Functional failure of the product caused by improper installation (please observe CMOS components handling instructions!), neglect or misuse of
the product, e.g. failure to operate the unit in compliance with the instructions given in the user or service manuals.
Damage caused by any form of external mechanical impact or modification.
Damage caused by the user’s failure to connect and operate the unit in compliance with local safety regulations.
Damage caused by force majeure (fire, explosion, flood, lightning, war, vandalism, etc.).
Consequential damages or defects in products from other manufacturers as well as any costs resulting from a loss of production.
Repairs carried out by personnel which is not authorized from MUTEC GmbH will void the warranty. Adaptations and modifications to the device made with regard to
national, technical, or safety regulations in a country or of the customer do not constitute a warranty claim and should be set with MUTEC GmbH in advance.
§5 Repairs
To obtain warranty service, the buyer must call or write to MUTEC GmbH before returning the unit. All inquiries must be accompanied by a description of the problem and
the original buyer’s invoice. Devices shipped to MUTEC GmbH for repair without prior notice will be returned to the sender at the sender’s expense. In case of a functional
failure please contact:
MUTEC Gesellschaft fuer Systementwicklung und Komponentenvertrieb mbH
Siekeweg 6/8 • 12309 Berlin • Germany • Fon 030-746880-0 • Fax [phone] • tecsuppor[email protected]
MUTEC GmbH assumes no liability for any incorrect information given in this manual. Please note that
all software/hardware product names are registered trademarks of their respective owners. No part of
this manual may be reproduced, copied or converted to a machine-readable form or electronical media
without a written permission of MUTEC GmbH. We reserve the right to change or improve our products
without notice. © MUTEC GmbH 2002-2005

CONTENT
INTRODUCTION
About this Manual
. . . . . . . . . . . . . . . . . . . . . . .
7
General Function Description
. . . . . . . . . . . . . . . . .
7
MC-1 and MC-1.1 common Features
. . . . . . . . . . . . . .
7
Additional Features for MC-1.1
. . . . . . . . . . . . . . . .
8
Applications
. . . . . . . . . . . . . . . . . . . . . . . . . . .
8
CONTROL ELEMENTS
MC-1 + MC-1.1 Front Panels
. . . . . . . . . . . . . . . . . .
9
MC-1 + MC-1.1 Rear Panels
. . . . . . . . . . . . . . . . . .
9
INSTALLATION
Content of the Box
. . . . . . . . . . . . . . . . . . . . . . .
11
Placing the device
. . . . . . . . . . . . . . . . . . . . . . .
11
Wiring the AES/EBU and S/PDIF Interfaces
. . . . . . . . . .
11
OPERATION
S
electing Function Areas and
s
etting Functions
. . . . . . .
13
Steps of Operation
. . . . . . . . . . . . . . . . . . . . . . .
13
MODE Function Area
. . . . . . . . . . . . . . . . . . . . .
14
S/PDIF
OP
→
S/PDIF
OP
, S/PDIF
CO
, AES/EBU
. . . . . . . . . .
14
S/PDIF
CO
→
S/PDIF
OP
, S/PDIF
CO
, AES/EBU
. . . . . . . . . .
14
AES/EBU
→
S/PDIF
OP
, S/PDIF
CO
, AES/EBU
. . . . . . . . . . .
14
OPTICAL
↔
SYMMETRICAL
. . . . . . . . . . . . . . . . . . .
14
S/PDIF
OP
↔
AES/EBU (only MC-1.1)
. . . . . . . . . . . . . .
14
S/PDIF
CO
↔
AES/EBU (only MC-1.1)
. . . . . . . . . . . . . .
15
DISTRIBUTION (only MC-1.1)
. . . . . . . . . . . . . . . . . .
15
SCMS Function Area
. . . . . . . . . . . . . . . . . . . . . .
15
ORIG
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
1st
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
PASS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
NONE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
STATUS Area
. . . . . . . . . . . . . . . . . . . . . . . . . .
16
ORIG
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
1st
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
NONE-PCM
. . . . . . . . . . . . . . . . . . . . . . . . . . .
16
DTS-CD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16
APPENDIX
Pin Assignment of the Connectors
. . . . . . . . . . . . . .
17
Technical Data
. . . . . . . . . . . . . . . . . . . . . . . . .
18

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INTRODUCTION
Thank you very much for purchasing
MC-1 or MC-1.1, Digital Audio Format
Converter, from MUTEC!
About this Manual
The whole manual is related to both versions in general
,
MC-1
and MC-1.1
.
The individual differences are mentioned in the according sections and
chapters.
The structure of this manual refers to the normal process of installing
MC-1
or MC-1.1
in a standard audio studio environment. Thus the chapters are
ergonomically sorted to provide a fast set-up. Before first power-on we
recommend to read the chapters INTRODUCTION and BRIEF INSTRUCTIONS
to get to know the general functionality of
MC-1
and MC-1.1
and to reach
a fast system integration.
The chapter OPERATION describes individual functions which enable the
adaption of
MC-1
and MC-1.1
to every studio environment. The chapters
APPLICATION EXAMPLE and APPENDIX include descriptions of favorable
studio set-ups as well as all technical information.
If there are any uncertainties when operating the units which can not be
cleared up by the content of this manual, please feel free to contact your
local dealer or MUTEC directly. All contact details are included in chapter
WARRANTY REGULATIONS located at the beginning of the manual.
General Function Description
MC-1
and
MC-1.1
are multifunctional, high-performance digital audio for-
mat converters for S/PDIF and AES/EBU. Using latest digital audio circuitries,
both units process all formats with clock rates up to 192.0 kHz! These con-
verters help to interconnect digital audio devices which are using different
transmission formats and are equipped with incompatible interfaces. The
format conversion process does not only the necessary electrical conversion
but also a format conversion of the reference signals in compliance with
the specifications which are standardized by the Audio Engineering Society
(AES) and the International Electrotechnical Commision (IEC).
Various additional operation modes
like ADAT line extension through
AES/EBU lines, SCMS processing or signal status detection
enable the use of
MC
-1
and
MC-1.1
in a wide range of applications
.
MC-1.1
e
specially
offers
double circuitr
ies
for bi-directional connections
which
allow
s
to run two signal paths individually. In addition, this unit con-
s
ists of two outputs for each digital audio format which enables to use
MC-
1.1
as an ADAT
TM
signal splitter and
S/PDIF
+
AES/EB
U
d
istribution amplifier.
MC-1 and MC-1.1 common Features
S/PDIF optical/coaxial and AES/EBU interfaces in one box.
Uni-directional format conversion from 32.0 kHz to 192.0 kHz
between
S/PDIF and AES 3 / AES 11.
Simultaneous format conversion to all output formats while allowing
the original signal to pass through.
Signal improvement by low-jitter PLLs.
ADAT
TM
transfer through AES/EBU lines.
NONE-PCM and DTS bitstream detections.
SCMS processing and status analyzing.
Easy configurable.
User‘s settings will be stored after switching-off.
Rack space saving 1/2 19“ housing allowing for mounting two devices
in one rack unit.
Built-in international power supply.
7
88
7
88
Boxes which contain a triangle
with
an exclamation mark should
be read carefully!
These include
additional information which are of major
importance for the functional descriptions in
the text column.
!
The grey boxes contain supplementary
information for the corresponding sections
in the text columns. The content of the
individual box refers to the description in
the text column beside the box.

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INTRODUCTION
INTRODUCTION
INTRODUCTION
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Additional Features for MC-1.1
Bi-directional format conversion
from 32 kHz to 192 kHz
between
S/PDIF and AES 3 / AES 11.
ADAT
TM
signal splitting
+
line exten
sion.
S/PDIF
optical/coaxial
+
AES/EBU signal splitt
ing.
S/PDIF, AES/EBU and ADAT
TM
signal distribution.
Applications
Interconnection of consumer and professional digital audio devices.
Realtime bi-directional signal transfer and format conversion between
send/returns of digital mixing consoles and effect processors.
Uni- or bi-directional interconnection of computer-based sound cards
with professional digital audio equipment.
S/PDIF, AES 3 and AES 11 signal splitting and distribution.
Distance extension for ADAT
TM
and S/PDIF optical signals through
symmetrical AES/EBU lines for e.g. theater or broadcast installations.
Digital audio signal refreshing.
SCMS coding of digial audio productions to protect those against illegal
copying.
S/PDIF optical/coaxial status analyzing.
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CONTROL ELEMENTS
MC-1 + MC-1.1 Front Panels
1
POWER
This red LED lights up when the unit is switched on with the rear panel
POWER switch.
2
SELECT
The toggle switch selects one of the two functional areas available.
3
DATA
Use this toggle switch to select a function from a specific functional area.
4
MODE
This function area includes all digital audio format conversion modes avail-
able.
5
SCMS
This function area offers four different ways to encode the outgoing
S/PDIF optical and coaxial digital audio signals.
6
STATUS
This area
indicates various signal statuses of incoming S/PDIF optical or
coaxial digial audio signals by means of status LEDs.
MC-1 + MC-1.1 Rear Panels
1
S/PDIF
OP
OUT
Thses outputs transmit digital S/PDIF audio signals (optical) in accordance
with the specifications of the standard IEC 60958 or ADAT
TM
signals (Toshiba
Toslink
TM
connector, EIAJ standard).
Double S/PDIF optical outputs
for signal splitting and distribution
are avail-
able at MC-1.1 only.
Refer to the OPERATIONS chapter for more
information.
9
88
9
88
MC-1 Rear Panel
MC-1.1 Rear Panel
MC-1.1 Front Panel
MC-1 Front Panel
4
3
2
1
1
2
3
4
5
6
7
5
6

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CONTROL ELEMENTS
CONTROL ELEMENTS
CONTROL ELEMENTS
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2
S/PDIF
CO
OUT
These outputs transmit unbalanced digital S/PDIF audio signals (coaxial)
based on the electrical specifications of the standard IEC 60958. The output
impedance is 75
Ω.
(cinch connectors)
.
3
AES/EBU OUT
These outputs transmit a balanced digital AES/EBU audio or blank frame
signal compliant with AES 3 – 1992 (R1997) and AES 11 – 1997/2003. The
output impedance is 110
Ω
(XLR connectors, male).
Double AES/EBU outputs
for signal splitting and distribution
are available
at MC-1.1 only.
4
AES/EBU IN
This input receives a balanced digital AES/EBU audio or blank frame signal
compliant with AES 3 – 1992 (R1997) and AES 11 – 1997/2003. The input
impedance is 110
Ω
(XLR connector, female).
5
S/PDIF
CO
IN
This input receives unbalanced digital S/PDIF audio signals (coaxial) based
on the electrical specifications of the standard IEC 60958. The input impe-
dance is 75
Ω.
(cinch connector)
.
6
S/PDIF
OP
IN
This input receives digital S/PDIF audio signals (optical) in accordance with
the specifications of the standard IEC 60958 or ADAT
TM
signals (Toshiba
Toslink
TM
connector, EIAJ standard).
7
MAINS IN, Power Switch + Power Inlet
This is the main switch for switching the device on and off. Be sure to
make all connections (especially the supplied power cable) properly before
turning on the switch. Heed the SAFETY INSTRUCTIONS at the beginning of
this manual.
Connect the supplied power cable here. Make sure that the power switch
is turned off before connecting the power cable to this inlet and to the
power outlet. Line voltages within the range of 90…260 V with a frequency
of 50 or 60 Hz can be applied. The internal power supply will automatically
make all necessary adjustments.
10
88
10
88
For detailed specifications on all terminals,
refer to the
PIN ASSIGNMENT OF THE
CONNECTORS
and
TECHNICAL DATA
sections
in the appendix.

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INSTALLATION
C
ontent of the Box
The unit was packed carefully. Nevertheless we recommend to check the
content directly after opening the package:
1 x MC-1 or MC-1.1
1 x Power cable
4 x Rubber feet
1 x Manual
1 x Registration card
Placing the Device
The unit should be set up as closely as possible to the devices to which it
will be connected, so as to avoid excessive cable lengths. Use the 4 rubber
feets enclosed with the appliance and stick them symmetrically on the
bottom side of the unit to protect the enclosure and supporting surface
from being damaged.
The device can be mounted into a standard 19“ rack and will require 1 unit.
In this case, the rubber feet cannot be attached. Install the device so that
one unit of rack space is left free both above and below the device to allow
for sufficient ventilation! The mounting depth including the terminals is
160 mm/6.7“. Another 60 mm/2.4“ should be added for the required cables.
Additional slide-in rails on the rack inside are recommended for safe instal-
lation. This will also avoid long-term mechanical deformation of the housing.
Wiring the AES/EBU and S/PDIF interfaces
Connect the AES/EBU interfaces with the help of balanced electrical
cables equipped with XLR connectors on both ends. The specifications
stipulate a specific cable resistance of 110
Ω
(ask your retailer for a confir-
mation of this value when purchasing the cables).
Connect the coaxial S/PDIF interface with the help of unbalanced electri-
cal cables equipped with cinch connectors on both ends. The specifications
stipulate a specific cable resistance of 75
Ω
(ask your retailer for a confirma-
tion of this value when purchasing the cables).
Never expose the device and
accessories to rain, moisture,
direct sunlight, or excessive heat
produced by radiators, heaters, or spot
lights! Sufficient air circulation in the
environment of the device must be ensured!
!
The condition of the packaging
material and the device should
be checked carefully additionally.
If there are any damages please refer to
SAFETY INSTRUCTIONS, Initial Operation,
and WARRANTY REGULATIONS.
!
Before installing the unit the section
SAFETY INSTRUCTIONS located
at the beginning of this manual
should be read carefully.
!
Since some manufacturers offer optimized
cables for the transmission of digital S/PDIF
and AES/EBU audio signals, it will be a good
idea to ask your retailer for specific cables.
Especially when working with high
AES/EBU clock rates well shielded
clock lines are imperative to avoid
increased radiation! Standard cables are nor-
mally useable for clock rates up to 50.0kHz.
Special shielded cable material should be
used for transfer of higher clock rates.
!

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I N S TALLAT I O N
I N S TALLAT I O N
I N S TALLAT I O N
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OPERATION
Selecting Function Areas and setting Functions
The device is fully operated using the two toggle switches at the front
panel.
1
Switching the SELECT switch selects between different basic
function areas.
2
Switching the DATA switch selects between the individual
functions within one function area.
For safety reasons, be sure to read
the
S
AFETY INSTRUCTIONS and
INSTALLATION chapters before first
powering-up!
We also recommend reading the CONTROLS
AND TERMINALS chapter for information on
how to connect MC-1 or MC-1.1!
!
Steps of Operation
1
First press on SELECT or DATA switch enables the last selected function
within the last selected function area. The corresponding LED is
beginning to flash.
2
Every press on DATA switch will select a new function. The LED of every
selected function will flash accordingly and the corresponding function is
available at once.
3
When the needed function is selected, do not press the switches again!
After a period of approx. 4 seconds the LED in front of the selected
function will stop flashing.
The STATUS area is not accessible by using the SELECT and DATA switches,
because it only informs about different conditions of incoming digital
audio signals.
All user-specific function settings
are available furthermore when
power is restored.
!
1. SELECT
selects individual
functio
n a
reas
.
SELECT + DATA operation
Function Areas + Functions
Function Areas
Functions

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OPERATION
OPERATION
OPERATION
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88
MODE Function Area
The function area MODE at MC-1 includes four, and at MC-1.1 seven
different format conversion functions. During the conversion process,
the SCMS data included in incoming S/PDIF streams will be analyzed and
reported in the STATUS area as »ORIG« (original) or »1st« (1st generation).
Furthermore if the S/PDIF source comes as a non-PCM stream, e.g. AC-3,
MPEG etc., or includes DTS-CD bitstreams, the corresponding LEDs on the
front panel labeled as »NON-PCM« and »DTS-CD« will light accordingly.
This functionality applies not to incoming AES/EBU digital audio signals
because of the lack of the necessary status bits and data stream structure
which are not defined in AES 3 and AES 11.
The MODE factory default is basically S/PDIF
OP
, the SCMS factory default is
basically PASS.
S/PDIF
OP
→
S/PDIF
OP
, S/PDIF
CO
, AES/EBU
S/PDIF
CO
→
S/PDIF
OP
, S/PDIF
CO
, AES/EBU
This functions convert an incoming S/PDIF optical (index »
OP
«) or coaxial
(index »
CO
«) reference signal to all three outputs simultaneously. During
this process a »real« format and electrical conversion of the S/PDIF data
stream will be done to the AES/EBU output aligned to AES 3 or AES 11,
while an electrical conversion will be carried out to the S/PDIF optical and
coaxial outputs. The original input signal will be transfered
in a
refreshed
and jitter-cleaned condition to
the format-same output.
The SCMS data-bits of the S/PDIF optical and coaxial outputs can be set as
described in the »SCMS Function Area« section. The factory default is PASS.
AES/EBU
→
S/PDIF
OP
, S/PDIF
CO
, AES/EBU
This function converts an incoming AES/EBU reference signal to all three
outputs simultaneously. During this process a »real« format and electrical
conversion of the AES/EBU data stream will be done to the S/PDIF optical
and coaxial outputs aligned to
IEC 60958
, while the original AES/EBU signal
will be refreshed and jitter-cleaned transfered to the AES/EBU output.
The SCMS data-bits of the S/PDIF optical and coaxial outputs can be set
as described in the »SCMS Function Area« section. The factory default is
NONE.
OPTICAL
↔
SYMMETRICAL
This function offers an electrical conversion between the AES/EBU and
S/PDIF optical interfaces without changing the format of the incoming
signal reference. Here the AES/EBU input and the S/PDIF output just like the
S/PDIF optical input and the AES/EBU output are connected directly and are
capable to transfer digital data simultaneously in both directions.
Thus, MC-1 and MC-1.1 can be used to transfer e.g. ADAT
TM
-based signals
via symmetrical AES/EBU lines. Since the data transmission with optical
cables is limited to 10 meters, as mentioned above, the
OPTICAL
↔
SYM-
METRICAL function
gives you the benefit of being able to transmit signals
without any loss over considerably greater distances of up to 100 m, e.g.
in larger studios.
Using OPTICAL
↔
SYMMETRICAL, it is not possible to set SCMS functions
and to analyze the incoming data streams with help of the STATUS area.
S/PDIF
OP
↔
AES/EBU (only MC-1.1)
This function converts an incoming S/PDIF optical (index »
OP
«) reference
signal to the AES/EBU output and an incoming AES/EBU reference signal
to the S/PDIF optical output simultaneously. During this processes »real«
format and electrical conversions of the S/PDIF and AES/EBU data streams
will be done based on the double conversion circuitries of MC-1.1. Both
signal paths can be used with different clock rates
simultaneously.
The SCMS data-bits of the S/PDIF optical output can be set as described in
the »SCMS Function Area« section. The factory default is PASS.
This function requires a second
MC-1 or MC-1.1 at the end of the
transmission chain, in order to
convert the symmetrical signal back to the
optical signal.
!

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OPERATION
OPERATION
OPERATION
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15
S/PDIF
CO
↔
AES/EBU (only MC-1.1)
This function converts an incoming S/PDIF coaxial (index »
CO
«) reference
signal to the AES/EBU output and an incoming AES/EBU reference signal
to the S/PDIF coaxial output simultaneously. During this processes »real«
format and electrical conversions of the S/PDIF and AES/EBU data streams
will be done based on the double conversion circuitries of MC-1.1. Both
signal paths can be used with different clock rates
simultaneously.
The SCMS data-bits of the S/PDIF coaxial output can be set as described in
the »SCMS Function Area« section. The factory default is PASS.
DISTRIBUTION
(only MC-1.1)
This function connects all inputs directly to the outputs of their same for-
mat. In this case every supply signal is available twice at the outputs which
is like a signal distribution function. During this operation the input signals
will be refreshed and jitter-cleaned before being transfered to their corre-
sponding outputs. All three signal paths can be used with different clock
rates simultaneously.
Especially
f
or
the S/PDIF optical in
put it is also possible e.g. to input an
ADAT
TM
signal. Thus, MC-1.1 can be used as an
ADAT
TM
signal splitter, while
distributing
S/PDIF coaxial and AES/EBU signals through
the other interfaces
additionally.
Using DISTRIBUTION, it is not possible to set SCMS functions and to analyze
the incoming data streams with help of the STATUS area.
SCMS Function Area
SCMS (Serial Copy Management System), also know as »copy protection
bits«, will affect the S/PDIF data streams at the S/PDIF optical and coaxial
outputs similarly. This applies not to the outgoing AES/EBU signal because
the AES 3 and AES 11 specifications do not define any SCMS capability. Due
to this, the AES/EBU output signal is free of SCMS information.
Setting SCMS functions applies basically to both S/PDIF outputs (optical +
coaxial)!
ORIG
This function called »Original« sets the outgoing SCMS data-bits to indicate
that the signal source is the original master and not a copy. Therefore
devices which are capable of evaluating SCMS data-bits will accept those
digital audio signals at their S/PDIF inputs for recording. ORIG is not
available when one of the following functions is used:
OPTICAL
↔
SYMMETRICAL
DISTRIBUTION
(only MC-1.1)
ORIG can be set no matter of the status of the incoming S/PDIF reference
signal source.
1st
This function called »1st Generation« sets the outgoing SCMS data-bits
to indicate that the signal source is a copy. Therefore devices which are
capable of evaluating SCMS data-bits will not accept those digital audio
signals at their S/PDIF inputs for recording. Due to this, valuable recordings,
sounds or commercial material will be protected against illegal copying. 1st
is not available when one of the following functions is used:
OPTICAL
↔
SYMMETRICAL
DISTRIBUTION
(only MC-1.1)
1st can be set no matter of the status of the incoming S/PDIF reference
signal source.
MUTEC GmbH declines any re-
sponsibility for criminal use of the
SCMS functionality basically!
It is allowed to use this function exclu-
sively to protect the musical productions
of the original MC-1 and MC-1.1 owner
against illegal copying by third parties
and to help the owner to use his digital
audio data more easily within his own
studio environment.
With release of the German copyright pro-
tection law at August, 8
th
2003, the use of
equipment which is capable of eliminating
copy protections is not allowed!
!
Instead of other manufacturer‘s converters,
MC-1 and MC-1.1 are offering SCMS
operation in every format conversion mode!

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ANHANG
ANHANG
ANHANG
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16
PASS
This function transmits all SCMS information received at one of the
S/PDIF inputs to both S/PDIF outputs without any modification. PASS is not
available when one of the following functions is used:
AES/EBU is the signal source
OPTICAL
↔
SYMMETRICAL is activated
S/PDIF
OP
↔
AES/EBU (only MC-1.1) is activated
S/PDIF
CO
↔
AES/EBU (only MC-1.1) is activated
DISTRIBUTION
(only MC-1.1) is activated
PASS can be set no matter of the status of the incoming S/PDIF reference
signal source.
NONE
This function sets the outgoing SCMS data-bits to indicate that there is
no copy protection available in the signal source. Therefore devices which
are capable of evaluating SCMS data-bits will accept those digital audio
signals at their inputs for recording. NONE is not available when one of the
following functions is used:
OPTICAL
↔
SYMMETRICAL
DISTRIBUTION
(only MC-1.1)
NONE can be set no matter of the status of the incoming S/PDIF reference
signal source.
STATUS Area
The STATUS area provides information on various signal statuses of incom-
ing S/PDIF optical or coaxial digial audio signals. Incoming AES/EBU will be
not evaluated by this function because of the lack of the corresponding
status bits in the AES/EBU data stream.
ORIG
This status LED indicates when the incoming digital audio signal of the
active S/PDIF input is SCMS-encoded as original source.
1st
This status LED indicates when the incoming digital audio signal of the
active S/PDIF input is SCMS-encoded as 1st copy.
NONE-PCM
This status LED indicates when the incoming digital audio signal of the active
S/PDIF input is a none-standard PCM data stream, e.g. AC-3, MPEG, etc.
DTS-CD
This status LED indicates when the incoming digital audio signal of the
active S/PDIF input is a DTS-CD bitstream (DTS = Digital Theatre System).

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BEDIENELEMENTE
BEDIENELEMENTE
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17
88
APPENDIX
Pin Assignment of the Connectors
Mains
1
1 Neutral (blue; USA: white)
2 Protective earth (green/yellow; USA: green)
3 Live, phase (brown; USA: black)
2
3
1
3
2
1 Audio ground
2 a conductor (hot / +)
3 b conductor (cold / -)
2
3
1
1 Audio ground
2 a conductor (hot / +)
3 b conductor (cold / -)
AES/EBU XLR Output
AES/EBU XLR Input
S/PDIF Cinch Output
1 Audio signal
2 Audio ground
1
2

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APPENDIX
APPENDIX
APPENDIX
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18
88
Technical Data
S/PDIF OPTICAL INPUT
Interfaces 1 x Toshiba ToslinkTM, EIAJ RC-5720
Format IEC 60958
Resolution 16 – 24 bits
Lock range Every digital audio clock rate from 32.0 kHz to 192.0 kHz
S/PDIF COAXIAL INPUT
Interface 1 x Coaxial (Cinch/RCA female), unbalanced, input impedance 75 Ω, 200 mV –7 V
Format IEC 60958
Resolution 16 – 24 bits
Lock range Every digital audio clock rate from 32.0 kHz to 192.0 kHz
AES/EBU INPUT
Interface 1 x XLR female, transformer balanced, input impedance 110 Ω, 200 mV – 7.0 V
Format AES/EBU 3 – 1992/2003 + AES/EBU 11 – 1997/2003
Resolution 16 – 24 bits
Lock range Every digital audio clock rate from 32.0 kHz to 192.0 kHz
S/PDIF OPTICAL OUTPUT
Interface 1 x Toshiba ToslinkTM, EIAJ RC-5720
Format IEC 60958
Resolution 16 – 24 bits
Transmitted audio clock rates Every digital audio clock rate from 32.0 kHz to 192.0 kHz
S/PDIF COAXIAL OUTPUT
Interface 1 x Coaxial (Cinch/RCA female), unbalanced, 0.5 Vpp @ 75 Ω, output impedance 75 Ω,
buffered
Format IEC 60958
Resolution 16 – 24 bits
Transmitted audio clock rates Every digital audio clock rate from 32.0 kHz to 192.0 kHz
AES/EBU OUTPUT
Interface 1 x XLR male, transformer balanced, 3.5 Vpp @ 110 Ω, output impedance 110 Ω, buffered
Format AES/EBU 3 – 1992/2003 + AES/EBU 11 – 1997/2003
Resolution 16 – 24 bits
Transmitted audio clock rates Every digital audio clock rate from 32.0 kHz to 192.0 kHz
SIGNAL PROCESSING
Signal conversion S/PDIF (optical) ↔ S/PDIF (coaxial) digital audio electrical conversion
S/PDIF (optical + coaxial) ↔ AES/EBU digital audio electrical + format conversion
SCMS copy bit Generation of original, 1st generation, no copy protection status
SCMS pass-thru functionality
S/PDIF signal analyzing Automatic detection of SCMS original + 1st generation status; none-PCM and DTS detection
POWER SUPPLY
Type Internal, switching power supply
Input voltage 90 V – 260 V (automatic adjustment), 47 Hz – 440 Hz
Power consumption max. 10 W
SYSTEM UNIT COVER
Cover size / material / color 196 x 42 x 156mm without connectors (W x H x D), aluminium sheet 1mm, black
Front panel size / material 198 x 44 x 2mm (W x H x D), aluminium
Weight: MC-1 ~ 612g
Weight: MC-1.1 ~ 631g

ALL SOFTWARE AND HARDWARE PRODUCT NAMES ARE REGISTERED TRADEMARKS OF THEIR RESPECTIVE OWNERS.
WE RESERVE THE RIGHT TO CHANGE TECHNICAL DETAILS WITHOUT PRIOR NOTICE. ©MUTEC GmbH 2002
•
7045-014
WWW.MUTEC-NET.DE
FON 0049-(0)30-746880-0
FAX [phone]
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