MEDIA TECHNOLOGY SYSTEMS STAGE8.8 Manuel utilisateur
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MEDIATECHNOLOGYSYSTEMS INC.
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STAGE8.8
CobraNet™ Interface
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766 LAKEFIELD ROAD, WESTLAKE VILLAGE, CALIFORNIA 91361 U.S.A. www.mediatechnologysystems.com
Part # MAN-0308-MCA-RevB
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THIS!DEVICE!COMPLIES!WITH!PART!15!OF!THE!FCC!RULES.!OPERATION!IS!SUBJECT!TO!THE!FOLLOWING!
CONDITIONS.! ! THIS! DEVICE! MAY! CAUSE! HARMFUL! INTERFERENCE.! THIS! DEVICE! IS! DESIGNED! TO!
ACCCEPT! AND! OPERATE! WITH! ANY! INTERFERENCE! RECEIVED.! ! THIS! INCLUDES! INTERFERENCE! THAT!
MIGHT!CAUSE!UNDESIRED!OPERATION.!!!
CAUTION:! ANY! CHANGES! OR! MODIFICATIONS! MADE! WITHOUT! THE! EXPRESS! APPROVAL! AND!
PERMISSION!OF!MANUFACTURER,!VOID!RESPONSIBILITY!OF!MANUFACTURER!FOR!COMPLAINCE.!
THIS!EQUIPMENT!HAS!BEEN!TESTED!BY!A!COMPETANT!BODY!AND!FOUND!TO!COMPLY!WITH!THE!LIMITS!
FOR! A! CLASS?B! ! DIGITAL! DEVICE,! PURSUANT! TO! PART! 15! OF! THE! FEDERAL! COMMUNICATIONS!
COMMISSION! RULES.!!! THESE!LIMITS!ARE!DESIGNED!TO! PROVIDE! REASONABLE!PROTECTION!!AGAINST!
HARMFUL!RF!ENERGY!IN!A!RESIDENTIAL!INSTALLATION.!
THIS!EQUIPMENT,! IF! NOT!PROPERLY!INSTALLED!IN! ACCORDANCE! WITH! THIS! MANUAL,!! LOCAL,! STATE!
AND! NATIONAL! RECOMMENDED! PRACTICES,! MAY! CAUSE! HARMFUL! INTERFERENCE! TO! RADIO!
COMMUNICATIONS.!SUCH!INTEFERENCE!AND!CAN!BE!DETERMINED!BY!SWITCHING!THE!DEVICE!ON!AND!
OFF.! ! THERE! IS! NO! GUARANTEE! THAT! THE! DEVICE! WILL! NOT! CAUSE! INTERFERENCE.! TO! RADIO! AND!
TELEVISION! RECEPTION.! ! USER! IS! ENCOURAGED! TO! TRY! TO! CORRECT! ANY! INTERFERENCE! BY! ONE! OR!
MORE!OF!THE!FOLLOWING!MEASURES:!
! ?RE?ORIENT!OR!RELOCATE!THE!RECEIVING!ANTENNA!
! ?INCREASE!THE!DISTANCE!OF!ANY!EQUIPMENT!AND!THE!DEVICE.!
! ?CONNECT!THE!DEVICE!TO!A!DIFFERENT!A/C!POWER!CIRCUIT!OUTPUT!TO!THE!RECEIVER!
! ?CONSULT!QUALIFIED!TECHNICIAN!OR!A!RADIO.TV!SPECIALIST!FOR!ASSISTANCE.!
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TO!PREVENT!ELECTRIC!SHOCK!DO!NOT!REMOVE!COVER.!
NO!USER!SERVICABLE!PARTS!INSIDE.!!REFER!TO!QUALIFIED!
AND!CERTIFIED!SERVICE!PERSONNEL.!!
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The!exclamation!mark!in!a!triangle!is!intended!to!alert!the!use!to!the!user!to!the!
presence!of!important!operating!and!maintenance/service!instructions!in!this!manual.!
!
The!lightning!flash!in!a!triangle!is!intended!to!alert!the!user!to!the!presence!of!un‐
insulated!“dangerous”!voltages!within!a!product’s!chassis!that!may!be!sufficient!to!
create!a!risk!of!electric!shock!to!humans.!
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Important!Safety!Instructions:!
Read!these!instructions.!
Keep!these!instructions.!
Heed!all!warnings.!
Follow!all!instructions.!
Do!not!use!this!apparatus!near!water.!
Clean!only!with!dry!cloth.!
Do!not!block!any!ventilation!openings.!Install!in!accordance!with!the!
manufacturer's!instructions.!
Do!not!install!near!any!heat!sources!such!as!radiators,!heat!registers,!stoves,!or!
other!apparatus!(including!amplifiers)!that!produce!heat.!
Only!use!attachments/accessories!specified!by!the!manufacturer.!
Refer!all!servicing!to!qualified!service!personnel.!Servicing!is!required!when!the!
apparatus!has!been!damaged!in!any!way,!such!as!liquid!has!been!spilled!or!
objects!have!fallen!into!the!apparatus,!the!apparatus!has!been!exposed!to!rain!or!
moisture,!does!not!operate!normally,!or!has!been!dropped.!
?8B C10,.5.2-)/&)6&()/6)5*-2;D& & & & & & & &
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EMC:!This!equipment!has!been!designed!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.!!
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Industry!Canada!Class!A!emission!compliance!statement:!This!Class!B!digital!apparatus!
complies!with!Canadian!ICES‐003.!Avis!de!conformite'!a'!la!re'glementation!d'Industrie!
Canada.!Cet!appareil!nume'rique!de!classe!A!est!conforme!a'!la!norme.
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This!manual!provides!you!with!valuable!information!for!safely!and!correctly!installing,!
setting! up! and! operating! your! amplifier.! ! It! is! not! possible! to! cover! all! aspects! of!
installation!and!application!of!complex!product.!!However,!we!have!attempted!to!supply!
all! critical! and! essential! information,! plus! advice! and! explanations! where! relevant.!!
There! is! a! great! body! of! work! re! amplification! and! sounds! systems! best! practices,!
available!from!many!sources!on!line.!!MTSI!will,!from!time!to!time!add!“White!Papers”!
and!Application!Notes!to!our!website.!As!well!as!additional!information!on!amplifier!use!
and!other!valuable!information.!
!
It!is!particularly!important!that!you!read!this!manual!and!especially!the!Warnings!and!
Cautions.!!!
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Each!analog!input!circuit!employs!a!fully!balanced!true!differential!topology!designed!to!
maximize!CMRR!across!all!possible!input!connection!methods,!where!the!input!and!
output!connectivity!has!been!designed!to!meet!AES48!standards!for!immunity!to!hum,!
buzz!and!SCIN.!!
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Each!input!stage!has!a!10kohm!input!impedance!and!can!accommodate!signals!of!up!to!
+24dBu!peak,!where!the!input!channel!gain!is!adjustable!from!0dB!to!+60dB,!ie!–from!
56dBu!(nominal)/+36dbu!(peak)!to!+4dBu!(nominal)+24dbu!(peak)!via!a!front!panel!
mounted!rotary!potentiometer.!Each!input!channel!has!an!individual!front!panel!
mounted!switch!that!form!phantom!power!(+24volts!DC).!!
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Both!input!and!output!channels!have!front!panel!mounted!signal!(‐20dB!threshold)!and!
peak!(‐3dB!threshold)!LED’s.!
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Each!output!channel!is!600ohm!impedance!and!drives!signals!of!up!to!+24dBu!peak.!
E8E C-I-2.,&=102-)/&
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The!STAGE8.8!is!a!CobraNet™!interface!with!8!analog!Mic/line!input!channels!and!8!line!
level!output!channels.!!
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+ - G
+ - G
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The!CobraNet™!port!uses!the!Cirrus!Logic!CS181xxx/CS496xxx!chipset!(similar!to!the!
commonly!used!CM2!card).!This!allows!for!up!to!8!audio!input!channels!from!the!
network!and!up!to!16!audio!output!channels!to!the!network,!8!local!analog!mic/line!
input!channels!to!the!network!and!8!local!analog!line!level!output!channels!from!the!
network.!!
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See!Figure 3-1!for!details!of!the!internal!block!diagram!for!the!Digital!Section!I/O.!
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Figure 3-1: Block diagram showing the Cobranet routing of the *%#=-F6F!
In!addition!to!audio!transport,!the!CobraNet™!port!provides!control!and!monitoring!
capability!via!SNMP.!MTS!provides!an!OEM!version!of!Stardraw!control!with!embedded!
MTS!SNMP!drivers!for!custom!GUI!rendering.!!This!is!downloadable!from!the!MTS!
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website.!The!SNMP!controls!include!all!the!standard!CobraNet™!OID’s!and!the!Cirrus!
DSP!extensions.!
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See!Cirrus!Logic’s!UM23!users!manual!for!full!details!of!the!chipset!and!PM25!
programmers!manual!for!full!details!of!the!SNMP!controls…!
http://www.CobraNet™.info/en/products!
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The!8!analog!inputs!are!mapped!to!the!CobraNet™!transmitter!channels!1!to!8!and!then!
repeated!on!channels!9!to!16.!This!will!allow!two!unicast!bundles!to!transmit!the!audio!
to!two!different!locations.!The!CobraNet™!receiver!channels!33!to!40!are!mapped!to!the!
analog!output!channels!1!to!8.!
E8K #12G)5L&0)//102-)/=&&
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The!MTS!STAGE8.8!uses!the!standard!TIA/EIA‐568‐B!wiring!scheme!(T568B!)…!see!
below:!
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E8M J)G15&7A++,;& & & & & & & & &
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The! STAGE8.8! interface! products! use! an! internationally! approved! “world! voltage”,!
external!power!supply!unit,!model!number:!!
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This! supply! takes! 100‐240VAC! 50/60Hz! and! provides! 24VDC! at! 1.5! Amps! to! the!
internal!supply!board.!!Regulation!and!supply!rails!are!generated!internally!by!a!Switch!
Mode!Power!Supply!(SMPS)!board!that!derives!plus!12!and!minus!12! Volt,! 5! Volt! and!!
24Volt!rails!for!the!various!circuit!elements,!such!as!the!MTSI!CobraNet™!board,!that!for!
the!STAGE8.8.!!!
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E8N ()//102-)/=&
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For!standalone!crossover!connection!between!two!STAGE8.8’s!(ie!no!Ethernet!switch),!
use!the!two!Data!in!connections!to!separate!the!DC!supplies.!For!a!typical!stage!box,!the!
two!injectors!would!be!at!the!control!room/mixing!console!and!just!the!long!cable!with!
Data!and!power!to!the!stage.!See!below…!
!
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The!Cobranet!network!port!also!carries!the!24!volt!power!on!the!unused!4!wires!of!the!
100BaseTx!connection.!The!STAGE8.8!ships!with!a!24volt!PSU!and!PoE!injector!(note!
the!Stage8.8!is!a!custom!PoE!and!not!IEEE802.3af).!The!injector!connects!as!follows…!
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E8O @.,,P',))5&*)A/2&L-2&
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The!shallow!depth!(3.5”)!of!the!STAGE8.8!allows!installation!in!a!standard!drywall!
construction.!This!option!would!provide!8!inputs!and!8!outputs!(off!one!UTP!cable)!at!
various!wall!and!floor!positions!in!an!Auditorium,!Banquet!Hall!or!Conference!Room.!
!
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