Audio Command Center Series Manual — P/N 51889:E1 6/8/2010 91
ACC-25/50ZS & ACC-25/50ZST Zone Splitting Applications Application Examples
5.5.3 50 Watt Zone Splitting - Eight Speaker Circuits
50 watts total power with automatic control via ACS link from the FACP (see Table 2.7 on page 37,
Table 2.8 on page 40, and “ACC-ZSM Zone Splitter Module (ACC-25/50ZS & ACC-25/50ZST)”
on page 41 for switch settings).
This application of the ACC-25/50ZS/T configures the Zone Splitter Module (ACC-ZSM) to
divide 50 watts of audio from two Audio Amplifiers (ACC-AAM25) into four speaker circuits
each. The FACP uses the ACS link connected to the Zone Page Module (ACC-ZPMK) for auto-
matic activation of the speaker zones and for alarm activation.
Configuration switches are set as follows:
• ACC-ZSM SW1 set to AAM1 & AAM2 and SW2 to Class B to place speaker circuits 1-4 on
AAM1 and speaker circuits 5-8 on AAM2, configured for Style Y (Class B) wiring
• ACC-ZPMK DIP switch S1 set for communication with an MS-9200UDLS, MS-9200UD
software version 2.x (1=ON, 2=OFF, 3=ON) or MS-9600 software version 2.x or higher
(1=ON, 2=OFF, 3=OFF)
• ACC-25/50ZS/T main circuit board DIP switch S3 set for single zone mode, All-Call and two
messages (1=ON, 2=OFF, 3=OFF)
The MS-9600, MS-9200UDLS, or MS-9200UD FACP can automatically activate the Fire Evacua-
tion or All Clear Message and any combination of the 8 speaker zones. Manually deactivating a
speaker circuit is accomplished by pressing the activated zone push-button on the ACC-ZPMK
keypad. Manual activation can be performed by pressing either of the Message push-button(s) and
then selecting the Zone push-button on the ACC-ZPMK keypad. All-Call Paging is possible by
first pressing the All-Call push-button on the main panel keypad and then keying the microphone to
make an announcement.
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