Wheelock MZC-144 Manual de instrucciones descargar pdf (Pagina 5)

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Sheet 5 of 26

4. APPLICATION DIAGRAMS

The following application diagrams show the seven basic system configurations of the MZC-144 and its companion MZEM-3.

All of these configurations are possible with the appropriate configured switch selections. Figures 2, 3, 4, and 5 are typical

configurations using central amplifiers. Figure 6 is a typical configuration using amplified speakers. Figures 7 and 8 are typical

configurations using zone amplifiers.

Figure 2:

One Central Amplifier which has music mute, page input and music input.

(One Way Paging and/or Optional Talk-Back)

In this application, the one central amplifier for both paging and background music has music muting and separate inputs

(volume controls) for paging and music. The system uses speakers with built-in line matching transformers for both One Way

paging, and paging with optional Talk-Back.

MUSIC

SOURCE

POWER

SUPPLY

24VDC

25V/70V/100V

GND (+)

ZONE 1

FROM TELEPHONE *

CENTRAL

AMPLIFIER

WITH TRANSFORMER

TYPICAL SPEAKER

BACKGROUND

TYPICAL SPEAKER

WITH TRANSFORMER

AMP. 1

MZC-144

AMP. 1

SYSTEM

W/MUSIC MUTE

ZONE 12

(-) 24VDC

OUT

(PAGING & BACKGROUND MUSIC)

(SEE NOTE)

MUSIC

ZONE 1

ZONE 2

ZONE 3

MUSIC

ZONE 4

ZONE 5

ZONE 6

MUSIC

ZONE 7

ZONE 8

ZONE 9

ZONE 10

ZONE 11

ZONE 12

GROUP 1

MZEM-3

GROUP 2

MZEM-3

GROUP 3

MZEM-3

GROUP 4

MUSIC

* NOTE: Use Tip CO and Ring CO for stand alone telephone, unused CO line/trunk port, or 600 ohm audio page port connections.

NOTES:

1. If the central amplifier does not provide music mute, then the background music source is connected as shown in Figure 3.

2. In systems with optional Talk-Back paging, install one background music source only as shown. DO NOT connect

background music source directly to zone group music inputs as improper operation may result.

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Wheelock MZC-144 Manual de instrucciones Pagina 5

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