Fbt MPA 3120 - Table of Contents

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TABLEOFCONTENTSSOMMARIO
1.Descrizionegenerale
1.1Pannellofrontale ..............................3
1.2Pannelloposteriore ..........................3
2.Avvertenzegenerali
2.1Installazione ....................................4
2.2Alimentazione ...................................4
2.3Notedisicurezza ..............................4
3.Connessioni
3.1Criterigenerali .................................5
3.2Ingresso/uscitadilinea ....................5
3.3Ingressotelefonico ..........................5
3.4Uscita‘MusicOnHold’(MOH)............6
3.5Precedenzaesegnaledipreavviso6
3.6Uscitedipotenza .............................6
3.6.1Sistemiabassaimpedenza ...............6
-Calcolodell’impedenza
neicollegamentiinserie .................7
-Calcolodell’impedenza
neicollegamentiinparallelo ............7
3.6.2Sistemiatensionecostante ..............7
-Calcolodelnumero
didiffusori(tramitelepotenze) ......7
-Calcolodelnumero
didiffusori(tramiteleimpedenze)..8
3.7Selezionedizoned’ascolto ...............8
4.Usodell’apparecchio
4.1Accensione ......................................9
4.2Controllodivolumeprincipale ...........9
4.3Correzioneacustica .........................9
-Controllotonibassi(BASS) .............9
-Controllotoniacuti(TREBLE)..........9
4.4Sovraccaricoeprotezione ................9
5.Caratteristichetecniche ......... 10
1.Generaldescription
1.1Frontpanel ......................................3
1.2Rearpanel .......................................3
2.Generalwarnings
2.1Installation .......................................4
2.2Powersupply ...................................4
2.3Safetynotes ....................................4
3.Connections
3.1Generalfeatures ..............................5
3.2Lineinput/output .............................5
3.3Telephoneinput ...............................5
3.4’MusicOnHold’output(MOH) ...........6
3.5Priorityandwarningsignal ...............6
3.6Poweroutputs .................................6
3.6.1Low-impedancesystems...................6
-Calculatingtheimpedance
valueinseriesconnections ............7
-Calculatingtheimpedance
valueinparallelconnection ............7
3.6.2 Constantvoltagesystems ...............7
-Determiningthenumberof
speakers(throughpowervalues)..7
-Determiningthenumberof
speakers(throughimpedance) .......8
3.7Selectingthelisteningareas .............8
4.Operation
4.1Poweron .........................................9
4.2Mastervolumecontrol ......................9
4.3Acousticadjustment .........................9
-Basscontrol(BASS) .......................9
-Treblecontrol(TREBLE) .................9
4.4Overloadingandprotection ..............9
5.Technicalspecifications .......... 10
1.Descriptiongénérale
1.1Panneaufrontal .............................11
1.2Panneaupostérieur .......................11
2.Précautionsgénérales
2.1Installation .....................................12
2.2Alimentation ...................................12
2.3Conseilsdesecurite .......................12
3.Connexions
3.1Criteresgeneraux ..........................13
3.2Entrée/sortiedeligne .....................13
3.3Entréetéléphonique .......................13
3.4Sortie‘MusicOnHold’(MOH)..........14
3.5Prioriteetsignald’annonce ............14
3.6Sortiesdepuissance ......................14
3.6.1Systèmesàbasseimpédance.........14
-Calculdel’impédancesur
lesbranchementsensérie ...........15
-Calculdel’impédancesur
lesbranchementsenparallèle......15
3.6.2Systèmesàtensionconstante........15
-Calculdunombrede
diffuseurs(parlespuissances).....15
-Calculdunombrede
diffuseurs(parlesimpedances)...16
3.7Selectiondezonesd’ecoute ...........16
4.Utilisationdel’appareil
4.1Miseenmarche ..............................17
4.2Controledevolumeprincipal ..........17
4.3Correctionacoustique ....................17
- Contrôle tonalité basses (BASS) . 17
- Contrôle tonalité aigues (TREBLE)17
4.4Surchargeetprotection .................17
5.Caractéristiquestechniques... 18
SOMMAIRE