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FIGURE 3
ONE CENTRAL AMPLIFIER
WHICH DOES NOT HAVE MUSIC MUTE,
AND WHICH HAS ONLY ONE INPUT
(ONE-WAY PAGING AND/OR TALKBACK)
In this application, the one central amplifier for both paging and background music does not provide music muting, and has only one input (one, or no
volume control). The system uses speakers with built-in line matching transformers for both one-way paging, and paging with talkback.
NOTE
1.
If the background music source has no volume control, then the optional PRM-150 must be connected between the background music source and
the ZC-312 MUSIC input, as shown.
2.
In systems with talkback paging, install one background music source only as shown. DO NOT connect background music source directly to zone
group music inputs.
P81982 K
Sheet 7 of 21