User guide

64 Distributed Audio Panel Manual — P/N 52265:B1 6/8/2010
Application Examples Two Speaker Circuits
5.5 Two Speaker Circuits
5.5.1 Single Channel
In this application, single channel audio from the riser input is routed to both speaker circuits on the
ACC-25/50DA. This is accomplished by using only the CMD1 input for activation.
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TB1
TB1
TB2
TB2
1 2 3 4 1 2 3 4
1 2 3 4 5 6
1 2 3 4 5 6
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Figure 5.5 Two Speaker Circuits - Single Channel
accdapp71.wmf
Second ACC-AAM25
First ACC-AAM25
Style Z
Note: Model R-4.7K,
1 watt
EOL resistor
P/N: 75470
(used for Style Y -
Class B only)
ACC-25/50
ACC-25/50DA Main Circuit Board
alarm polarities shown for all circuits
Style Z
4.7K ELRs P/N: 27072
Host FACP
NAC1 NAC2
25V
RMS
Audio
Riser Out
MASTER
CMD BUS
ACC-AAM25
Out to next Distributed
Audio Panel
supervisory polarities shown
Style Z