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Table of contents sommario, Sommaire – FBT MPA 3240 User Manual

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TABLE OF CONTENTS

SOMMARIO

1.

Descrizione generale

1.1

Pannello frontale .............................. 3

1.2

Pannello posteriore .......................... 3

2.

Avvertenze generali

2.1

Installazione

.................................... 4

2.2

Alimentazione ................................... 4

2.3

Note di sicurezza .............................. 4

3.

Connessioni

3.1

Criteri generali ................................. 5

3.2

Ingresso/uscita di linea .................... 5

3.3

Ingresso telefonico .......................... 5

3.4

Uscita ‘Music On Hold’ (MOH)............ 6

3.5

Precedenza e segnale di preavviso 6

3.6

Uscite di potenza ............................. 6

3.6.1

Sistemi a bassa impedenza ............... 6
- Calcolo dell’impedenza

nei collegamenti in serie ................. 7

- Calcolo dell’impedenza

nei collegamenti in parallelo ............ 7

3.6.2

Sistemi a tensione costante .............. 7
- Calcolo del numero

di diffusori (tramite le potenze) ...... 7

- Calcolo del numero

di diffusori (tramite le impedenze) .. 8

3.7

Selezione di zone d’ascolto ............... 8

4.

Uso dell’apparecchio

4.1

Accensione

...................................... 9

4.2

Controllo di volume principale ........... 9

4.3

Correzione acustica ......................... 9
- Controllo toni bassi (BASS) ............. 9

- Controllo toni acuti (TREBLE).......... 9

4.4

Sovraccarico e protezione ................ 9

5.

Caratteristiche tecniche

......... 10

1.

General description

1.1

Front panel ...................................... 3

1.2

Rear panel ....................................... 3

2.

General warnings

2.1

Installation ....................................... 4

2.2

Power supply ................................... 4

2.3

Safety notes .................................... 4

3.

Connections

3.1

General features .............................. 5

3.2

Line input/output

............................. 5

3.3

Telephone input ............................... 5

3.4

’Music On Hold’ output (MOH) ........... 6

3.5

Priority and warning signal ............... 6

3.6

Power outputs ................................. 6

3.6.1

Low-impedance systems................... 6
- Calculating the impedance

value in series connections ............ 7

- Calculating the impedance

value in parallel connection ............ 7

3.6.2

Constant voltage systems ............... 7
- Determining the number of

speakers (through power values) .. 7

- Determining the number of

speakers (through impedance) ....... 8

3.7

Selecting the listening areas ............. 8

4.

Operation

4.1

Power on

......................................... 9

4.2

Master volume control ...................... 9

4.3

Acoustic adjustment ......................... 9
- Bass control (BASS) ....................... 9

- Treble control (TREBLE) ................. 9

4.4

Overloading and protection .............. 9

5.

Technical specifications

.......... 10

1.

Description générale

1.1

Panneau frontal ............................. 11

1.2

Panneau postérieur ....................... 11

2.

Précautions générales

2.1

Installation

..................................... 12

2.2

Alimentation ................................... 12

2.3

Conseils de securite ....................... 12

3.

Connexions

3.1

Criteres generaux .......................... 13

3.2

Entrée/sortie de ligne ..................... 13

3.3

Entrée téléphonique ....................... 13

3.4

Sortie ‘Music On Hold’ (MOH) .......... 14

3.5

Priorite et signal d’annonce ............ 14

3.6

Sorties de puissance ...................... 14

3.6.1

Systèmes à basse impédance......... 14
- Calcul de l’impédance sur

les branchements en série ........... 15

- Calcul de l’impédance sur

les branchements en parallèle ...... 15

3.6.2

Systèmes à tension constante........ 15
- Calcul du nombre de

diffuseurs (par les puissances) ..... 15

- Calcul du nombre de

diffuseurs (par les impedances) ... 16

3.7

Selection de zones d’ecoute ........... 16

4.

Utilisation de l’appareil

4.1

Mise en marche .............................. 17

4.2

Controle de volume principal .......... 17

4.3

Correction acoustique .................... 17
- Contrôle tonalité basses (BASS) . 17

- Contrôle tonalité aigues (TREBLE) 17

4.4

Surcharge et protection ................. 17

5.

Caractéristiques techniques...

18

SOMMAIRE

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