Euphonix MADI MI715 User manual

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MI715
MO705
MADI Converters
Installation Manual
Document Revision: A
Part Number: 840-11314-01
Release Date: August 2010

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Regulatory and Safety Notices
FCC Notice
Part 15 of the Federal Communication Commission Rules and Regulations has established Radio
Frequency (RF) emission limits to provide an interference free radio frequency spectrum. Many
electronic devices produce RF energy incidental to their intended purpose.
These rules place electronic equipment into two classes, A and B, depending on the intended use.
Class A devices are those that may be expected to be installed in a business or commercial environment.
Class B devices are those that may be expected to be installed in a home or residential environment. The
FCC requires devices in both classes to be labeled with the interference likelihood and additional
operating instructions. The rating label on the equipment will show which class the product is (A or B).
Class A product will not have an FCC logo. Class B equipment will have an FCC logo. The information
statements differ on the two classes.
Class A Equipment
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference, in which case the user will be
required to correct the interference at personal expense.

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Modifications
The FCC requires the user to be notified that any changes or modifications made to Avid hardware that
are not expressly approved by Avid Technology may void the user’s authority to operate the equipment.
Cables
Connections to Avid hardware must be made with shielded cables with metallic RFI/EMI connector
hoods in order to maintain compliance with FCC Rules and Regulations.
PRODUCTS WITH MULTIPLE POWER INPUTS:
WARNING: Each power input is intended to be connected to a separate branch circuit. Risk of high
leakage exists if multiple inputs are connected to a single source and protective earth is not present. A
QUALIFIED SERVICE PERSON shall verify that each socket-outlet from which the equipment is to be
powered provides a connection to the building protective earth. If any do not provide this connection,
the QUALIFIED SERVICE PERSON shall arrange for the installation of a PROTECTIVE EARTHING
CONDUCTOR from the separate protective earthing terminal to the protective earth wire in the building.
Canadian ICES-003
Class A Equipment
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la classe A respecté toutes les exigences du Règlement sur le matériel
brouilleur du Canada.

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European Union Declaration of Conformity
Declaration of conformity
Konformitätserklärung
Déclaration de conformité
Declaración de Confomidad
Verklaring de overeenstemming
Dichiarazione di conformità
We/Wir/ Nous/WIJ/Noi:
Avid Technology
1925 Andover Street
Tewksbury, MA, 01876 USA
European Contact: Nearest Avid Sales and Service Office or
Avid Technology International B.V.
Sandyford Industrial Estate
Unit 38, Carmanhall Road
Dublin 18, Ireland
declare under our sole responsibility that the product,
erklären, in alleniniger Verantwortung,daß dieses Produkt,
déclarons sous notre seule responsabilité que le produit,

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declaramos, bajo nuestra sola responsabilidad, que el producto,
verklaren onder onze verantwoordelijkheid, dat het product,
dichiariamo sotto nostra unica responsabilità, che il prodotto,
Product Name(s) : MADI Converters
Model Number(s): MI715 & MO705
Product Options: This declaration covers all options for the above product(s).
to which this declaration relates is in conformity with the following standard(s) or other normative
documents.
auf das sich diese Erklärung bezieht, mit der/den folgenden Norm(en) oder Richtlinie(n)
übereinstimmt.
auquel se réfère cette déclaration est conforme à la (aux) norme(s) ou au(x) document(s)
normatif(s).
al que se refiere esta declaración es conforme a la(s) norma(s) u otro(s) documento(s)
normativo(s).
waarnaar deze verklaring verwijst, aan de volende norm(en) of richtlijn(en) beantwoordt.
a cui si riferisce questa dichiarazione è conforme alla/e seguente/i norma/o documento/i
normativo/i.
The requirements of the European Council:
Safety: Directive 2006/95/EC
EN 60065:2002 /A1:2006
EMC: Directive 2004/108/EC
EN 55103-1:1996
EN 55103-2:1996

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LED Safety Notices
Avid hardware might contain LED or Laser devices for communication use. These devices are compliant
with the requirements for Class 1 LED and Laser Products and are safe in the intended use. In normal
operation the output of these laser devices does not exceed the exposure limit of the eye and cannot
cause harm.
Standard to which conformity is declared: (IEC 60825-1)
Optical connections are located on the rear panel and are typically labeled “Optical” or “SPDIF/ADAT.”
The exact location of optical connections is identified more clearly elsewhere in the documentation for
the Avid hardware device.
Disposal of Waste Equipment by Users in the
European Union

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Rack-mount Requirements
The following rack-mount requirements are listed below:
• Elevated Operating Ambient — If installed in a closed or multi-unit rack assembly, the operating ambient
temperature of the rack environment might be greater than room ambient. Therefore, consider installing the
equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the
manufacturer.
• Reduced Air Flow — Installation of the equipment in a rack should be such that the amount of air flow
required for safe operation of the equipment is not compromised. Do not block vents.
• Mechanical Loading — Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
• Circuit Overloading — Consideration should be given to the connection of the equipment to the supply
circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
• Reliable earthing — Reliable earthing of rack-mounted equipment should be maintained. Particular
attention should be given to supply connections other than direct connections to the branch circuit (for
example, use of power strips).

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Lithium Battery Replacement
If a battery is supplied in this Avid product it must only be replaced by qualified personnel. Contact Avid
Customer Support for assistance.
WARNING
Danger of explosion if battery is incorrectly replaced. Replace with only the same or equivalent type
recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s
instructions.
ADVARSEL!
Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med batteri af
samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren.
ADVARSEL!
Lithiumbatteri - Eksplosjonsfare. Ved utskifting benyttes kun batteri som anbefalt av
apparatfabrikanten. Brukt batteri returneres apparatleverandøren.
VARNING
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ som
rekommenderas av apparattillverkaren. Kassera använt batteri enligt fabrikantens instruktion.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu. Vaihda paristo ainoastaan laitevalmistajan
suosittelemaan tyyppiin. Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.

Euphonix MADI Converters Operation Manual
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TableofContents
Chapter1: Introduction..................................................................................................... 4
1.1 MI715/MO705......................................................................................... 4
1.2 PowerOnSequence ................................................................................. 5
1.3 SafetyandPrecautions............................................................................ 5
1.3.1 220,230,240VACOperation..................................................... 5
Chapter2: MI715andMO705Converters .................................................................. 7
2.1 Features.................................................................................................... 7
2.2 Applications............................................................................................. 7
2.3 MI715/MO705FrontPanel ...................................................................... 8
2.4 MI715RearPanel ..................................................................................... 9
2.5 MO705RearPanel ................................................................................. 11
2.6 Synchroniztion........................................................................................12
2.6.1MI715...................................................................................... 12
2.6.2 MO705 ..................................................................................... 12
2.7 Specifications ......................................................................................... 13

Euphonix MADI Converters Operation Manual
4
Chapter1:Introduction
1.1 MI715/MO705
TheMI715andMO705convertersprovideMADIconversiontointerfaceto/from
analogandAESequipmentsuchasconsoles,tapedecks,microphonepreamplifiers
andotherdevices.Bothconvertersaretworackspaceshighandarehousedinastain‐
lesssteelchassiswithmachined,heavyaluminumfrontpanels.
TheMI715convertsincominganalogsignalsto24‐bitMADIdigitalsignalsthatcapture
theinput’scompletedynamicrange.EachmainAES/EBUinputisautomaticallyevaluat‐
edforsample‐rateconversion.Theincomingsamplerateiscomparedwiththeinternal
rate.Iftheyarethesame,noconversionoccurs.Iftheratesdiffer,sample‐ratecon‐
versionisactivatedandpersistsuntilanewinputisappliedortheinternalsamplerate
changes.Thesample‐rateconversionrangeis32–56kHz.Inadditiontothe8XLRcon‐
nectorsforanaloginputsand8XLRconnectors/2D‐SubconnectorsforAESinputs.The
MO705convertsincomingMADIsignalsto8analogchannelsand8AESstereopairs.
The 16 digital outputs (8 pair) can be bit-depth converted from 24 to 20 or 16 bits.

Euphonix MADI Converters Operation Manual Introduction
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1.2 PowerOnSequence
Werecommendpoweringuptheconvertersonlyafterverifyingthepresenceofa
validsyncsignal.Afterpoweringuptheconverters,theSampleRateandSampleRate
SourceLEDsblinkastheconvertersensestheincomingSampleRatesourceandSam‐
pleRate.Werecommendmonitoringthepower‐upsequencetoverifytheconverters
havecorrectlyauto‐sensedthedesiredSampleRateSourceandSampleRate.
1.3 SafetyandPrecautions
TheMI715andMO705complywithCE’sEN60950ElectricalSafetyStandards.
1.3.1 220,230,240VACOperation
NOTE: Beforeconnectingpowertotheconverters,changethefuseandvoltageselectorto
theappropriate220/230/240VACsettings.
Theconverterspreservetheirsignalqualityusinglinearpowersuppliesthatmustbe
manuallyswitchedbetween115and230VAC.Theunitsareshippedsetfor115VAC.
Movethered,two‐positionswitchnearthepowerentrymoduleoftheconvertersto
the230 VACposition(down)for220/230/240VACoperation.
Eachunitusesa0.630Afusefor115VACoperation.Tooperateat220,230,or
240 VAC,installthespare0.315Afuseprovidedinthepowerentrymodulefuse‐holder.
Toaccessboththeactiveandthesparefuse:
1. Turntheunit’spoweroff.
2. RemovetheIECpowercablefromthepowerentrymodule.
3. Useasmallscrewdrivertoopenthefusetraybelowtheelectricalinlet.
Theactivefuseistotherearofthetray.Thesparefuseisinthetrayslotclos‐
esttothefront.Pullthefusesthroughtheplasticconstrictionpointthatholds
themfromfallingout.
NOTE: Neverdisconnectthesafetygroundtotheconverters.

Euphonix MADI Converters Operation Manual Introduction
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PowerCordRequirements
TheconvertersaresuppliedwithNorthAmericanIECpowercords.Ifthiscordis
changedtoallowadifferentplugconfiguration,itistheresponsibilityoftheuserto
selectanapprovedpowercordwithproperconstructionmaterial,currentcapacity,
flexibility,andstrengthcharacteristics.
Cooling
Westronglyrecommendprovidingadequateventilationtotheconverters,particular‐
lywheninstalledinarack.TheMI715andMO705convertersinparticularshouldhave
spaceleftaboveandbeloweverytwounitssoheatcanproperlydissipate

Euphonix MADI Converters Operation Manual
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ChapterϮ:MI715/MO705Converters Features
Professionalgradeaudioconversionisaccomplishedutilizing128timesover‐sampled
noise‐shapeddelta‐sigmatechniques.Theanalogtodigitalconversionemploysa
multi‐bitmodulararchitecturewhilethedigitaltoanalogconversionemploysasingle‐
bitmodulatorarchitecture.Low‐jitterreferenceclocksareprovidedutilizingdigital
PLLtechniqueswithVCXOandVCOoscillators.
Theanaloginputsandoutputscanbecalibratedfromthefrontpanelofeachunit.
AES/EBUandWordClockexternalsyncinputsonbothunitsprovidesynchronization
todigitalsystems.SampleRateSourceandSampleRateareautomaticallysensedby
bothunits.Supportedsampleratesinclude44.1,48,88.2,and96kHz.Inaddition,pull‐
upandpull‐downratesforthestandardsamplerates,aswellascustomsamplerates
areavailable.
Ϯ.Ϯ Applications
InadditiontotheirstandarduseinaEuphonixdigitalsystem,theMI715andMO705
canbeusedasstand‐aloneconverters.WhenusedwiththeEuphonixSH612Studio
Hub,thisisapowerfulconversionandMADIroutingsystemthatcanbeusedtointer‐
facebetweenananalogconsoleandanotherwiseall‐digitalfacility(i.e.,TVbroadcast
facility).
NOTE: MADIcablescanbeextendedto50m(164ft),allowingremotelocationofthecon‐
verters.

Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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Ϯ.ϯMI715/MO705FrontPanel
Thissectiondiscussesbothfrontpanelsandnotestheirfewdifferences.
TrimPotsAccess:Onetrimpotadjussthemaximumanaloginput/outputlevelof
channels1–8in2‐dBstepsbetween+12and+26dBu.
SampleRateLEDs:TheseLEDsindicatethesampleratetowhichtheconverteriscur‐
rentlylocked.Sampleratesareauto‐sensedbutcanbemanuallyselectedonthe
AM713.Supportedsampleratesare96kHz,88.2kHz,48kHz,44.1kHz,andCustom
ratesfromexternalsources.
SampleRateSourceLEDs:TheseLEDsindicatetheformatoftheSampleRateSource
towhichtheconverteriscurrentlylocked.SampleRateSourcecanbeauto‐sensedor
manuallyselected.Ifanexternalsourceisnotdetected,theMI715revertstoInternal
sync;theMO705mutesitsoutputs.Ifamanuallyselectedsourceisnotpresent,the
SampleRateSourceindicatorblinks.
•AES:SampleRatelockedtoAESInput.
•Word:SampleRatelockedtoWordClockInput.
•Internal(MI715only):SampleRatelockedtoitsowninternalcrystal.
•MADI(MO705only):SampleRatelockedtoMADI.
•Auto:SampleRateSourcehasbeenauto‐sensed.
TheseLEDsappearinthesameorderinwhichsignalsaretestedfortheirpresence.
Thisdetectionprocedureoccurswhentheconvertersarepoweredon.TheSample
Rate(MI715only)andSampleRateSourcecanalsobeselectedmanually.ManualSe‐
lectionButtons:ThebuttonbeloweachSampleRateLEDrowmanuallyselectsthe
samplerate.TheMI715alsoallowsmanualselectionoftheSampleRateSource.
PowerSwitch:On/Offswitch.
NOTE: Therearenouser‐serviceablepartsintheconverters.

Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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Ϯϰ MI715RearPanel
MA715RearPanel
InputVoltageSelector:Thisredswitchallowstheunittooperateineither110/115
VACor220/230/240VACenvironments.Afusemustalsobechangedfor220/230/240
VACoperation(seepage5).Unitsareshipped setandfusedfor110/115VAC.
PowerConnector(IEC)andFuseTray:TheIECpowerconnectoracceptsstandardIEC
powercords.Thefusetraycontainsboththeactivefuseandasparefusefor220/230/
240VACoperation.Seepage6forinstructionsonhowtochangethefusefor220/
230/240VACoperation.
AnalogInputs(femaleXLR):8balanced,analoginputsonXLRconnectors.Inputsen‐
sitivityissetfromthefrontpanel.
AES/EBUDigitalInput(femaleXLR):8StereoAES/EBUdigitalinputonXLRconnectors
ParallelAES/EBUDigitalInputs(femaleDB25):Two8‐channeldigitalconnectors
functioninparallelwithXLRdigitalinputs,andshouldnotbeusedsimultaneously
AESSyncIn(femaleXLR):MasterclockinputfortheconverterwhenusingAESasSam‐
pleRateSource.
AESSyncThru(maleXLR):OutputsthesamesignalconnectedtoAESSyncIn.
WordIn(BNC):MasterclockinputfortheconverterwhenusingWordClockasSam‐
pleRateSource.
WordOut(BNC):OutputsaWordclocksignalsynchronizedtotheSampleRate
Source.InthepresenceofanexternalWordclockinput,thisconnectorprovides
aregeneratedversionofthatinputsignal.Withoutanexternalsampleratesource,
thisconnectoroutputstheinternallygeneratedclocksignal.

Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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MADIOut(BNC):Outputsthedigitalaudiosignal.
•1–8: Analoginputs
•9–24: AESinputs


Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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Ϯϱ MA705ReaƌPanel
Figure 1-1 MA705RearPanel
InputVoltageSelector:Thisredswitchsetstheunittoeither110/115VACor220/
230/240VACenvironments.Afusemustalsobechangedfor220/230/240VACoper‐
ation(seepage6).Unitsareshippedsetandfusedfor110/115VAC.
PowerConnector(IEC)andFuseTray:TheIECpowerconnectoracceptsstandardIEC
powercords.Thefusetraycontainsboththeactiveandsparefuses.Seepage6to
learnhowtochangethefusefor220/230/240VACoperation.
AnalogOutputs(maleXLR):8balancedanalogoutputsonXLRconnectors.Outputlev‐
elissetfromthefrontpanel.
AES/EBUDigitalOutputs(maleXLR):8StereoAES/EBUdigitaloutputsononeXLR
connector.
ParallelAES/EBUDigitalOutputs(femaleDB25):Two8‐channeldigitalconnectors
functioninparallelwithXLRdigitaloutputsandthetwooutputsshouldnotbeused
simultaneously.SeeFigure3‐5onpage33forpinoutdiagram.
AESSyncIn(femaleXLR):MasterclockinputfortheconverterwhenusingAESasthe
SampleRateSource.
AESSyncThru(maleXLR):OutputsthesamesignalconnectedtoAESSyncIn.
WordIn(BNC):MasterclockinputfortheconverterwhenusingWordClockasSam‐
pleRateSource.
WordOut(BNC):OutputsaWordClocksignalsynchronizedtotheSampleRate
Source.InthepresenceofanexternalWordclockinput,thisconnectorprovides
aregeneratedversionoftheinputsignal.Withoutanexternalsampleratesource,
thisconnectoroutputsaninternallygeneratedclocksignal.
MADIIn(BNC):Digitalaudiosignalinput.
•1–8: analogoutputs
•9–24: AESoutputs

Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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ϮϲSynchronization
Ϯϲ.1 MI715
TheMI715’sSampleRateissetexternallybyoneoftwosourcesignalsorinternallyby
crystalsandassociatedcircuitry.TheSampleRateSourceisdeterminedautomatically
bythepresenceofsignalswhentheMI715ispoweredon.Theorderinwhichexternal
signalsaretestedforpresenceis:AES,Word,Internal.
ThedetectedsignalimmediatelybecomesthesourcefortheMI715’ssamplerate
clock.Theauto‐sensedSampleRateSourcecanbeoverriddenusingthebuttononthe
frontpaneloftheMI715,belowtheSampleRateSourceLEDs.IfneitherAESnorWord
Clocksignalsarepresent,theMI715usesitsinternalclockderivedfromon‐boardvolt‐
age‐controlledcrystal.
ThedefaultinternalSampleRateoftheMI715is48kHz.Thisdefaultinternalratecan
beoverriddenwiththeSampleRatebuttononthefrontpaneloftheMI715(directly
belowtheSampleRateLEDs)to44.1,48or96kHz.
Ϯϲ.2 MO705
TheMO705detectsSampleRateandSampleRateSourceliketheMI715withthe
followingtwodifferences:
• SincetheMO705isalwaysaslavetoanexternalSampleRateSource,thereis
nointernalSampleRatesetting.
•TheMO705canuseMADIinadditiontoAESorWordClockasaSampleRate
Source,anddetectsthepresenceofthesesignalsinthefollowingorder:AES,
Word,MADI.
Whenasignalisdetected,itimmediatelybecomesthesamplerateclockofthe
MO705.Theauto‐sensedSampleRateSourcecanbeoverriddenwiththeSampleRate
SourcebuttononthefrontpaneloftheMO705,belowtheSampleRateSourceLEDs.

Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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2.7 Specifications
MI715 Performance Specifications
Sync Sources AES, word clock, internal
Sync Outputs AES thru and word clock out
Sync Detection Auto or switched
Internal Sample Rate 44.1, 48, 88.2, 96 kHz ±50 ppm
Lock range
fine mode 300 ppm
custom mode 12% varispeed of 44.1 and 48 kHz
Above 50 kHz, varispeed can adjust the nominal sample rate by -12 to +5%
Audio Inputs 8 analog, 16 AES (8 AES Pairs)
Analog Inputs (1–8) Electronically balanced XLR; 20 kinput impedance
Level for 0 dBFS Adjustable between +12 and +26 dBu in 2-dB steps
Signal-to-Noise Ratio 105 dB (unweighted)
THD 0.0005%
Frequency Response
(1 kHz @ +4 dBu) 0.25 dB 20 Hz – 20 kHz @ 48 kHz -2.5 dB 20 Hz – 40 kHz @ 96 kHz
CMRR >50 dB 20 Hz – 20 kHz
Crosstalk -110 dB @ 1 kHz
-100dB 20 Hz – 20 kHz
Group Delay 41.7/Fs(869 s @ 48 kHz)
AES Inputs (9-24) XLR, transformer isolated, 110 , 24-bit Group delay varies with sync frequency
and inputs
MADI Output BNC 75 
24 channels at all sample rates
Inputs mapped to channels 1–24, 24-bit signal path

Euphonix MADI Converters Operation Manual MI715/MO705 Converters Features
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MO705 Performance Specifications
Sync Sources AES, word clock, MADI
Sync Outputs AES thru and word clock out
Sync Detection Auto or switched
Internal Sample Rate 44.1, 48, 88.2, 96 kHz ±50 ppm
Lock range
fine mode 300 ppm
custom mode 12% varispeed of 44.1 and 48 kHz
Above 50 kHz, varispeed can adjust the nominal sample rate by -12 to +5%
MADI Input
BNC 75 
44.1/48 kHz: 56 channels
88.2/96 kHz: 28 channels. Outputs mapped to channels 1–24, 24-bit signal
path
Audio Outputs 8 analog,16 AES
Analog Outputs (1–8) Electronically balanced XLR; 200 output impedance
Level for 0 dBFS Adjustable between +12 and +26 dBu in 2-dB steps
Signal-to-Noise Ratio 101 dB (unweighted)
THD 0.0003%
Frequency Response
(1 kHz @ +4 dBu) 0.25 dB 20 Hz – 20 kHz @ 48 kHz -2.5 dB 20 Hz – 40 kHz @ 96 kHz
CMRR >50 dB 20 Hz – 20 kHz
Crosstalk -110 dB @ 1 kHz
-100 dB 20 Hz – 20 kHz
Group Delay 28.2/Fs(588 s @ 48 kHz)
AES Outputs (9–24) AES on XLR, transformer isolated, 110 , 24 bit
User can truncate to 16- or 20-bit per stereo pair
Truncation Type Dithered or 1st order noise-shaped, internally switched
Dither Type TPDF (active only for 16- or 20-bit word length)
Digital Format Pro or Consumer, internally switched
Group Delay 3/Fs(63 μs @ 48 kHz)
AES (XLR), transformer isolated, 110 
.
Digital Format professional or consumer (internally switched)