Distributed Audio Panel Manual —
P/N 52265:B1 6/8/2010
65
Two Speaker Circuits
Application Examples
5.5.2 Dual Channel
This application provides two channels of input audio that can be directed to both ACC-25/50DA
speaker circuits. The FACP can control the CMD1 and CMD2 inputs on the ACC-25/50DA to
route riser audio from the ACC-25/50 or select the ACC-25/50DA onboard tone generator or
optional message generator (FC-MGM) to be routed to the speaker circuit.
-
-
-
-
++
++
TB1
TB1
TB2
TB2
1 2 3 4
1 2 3 4
1 2 3 4 5 6
1 2 3 4 5 6
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
Figure 5.6 Two Speaker Circuits - Dual Channel
accdap
p7
2.w
m
fr
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
Style Z
