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28 Audio Command Center Series Manual — P/N 51889:E1 6/8/2010
Product Description Components
ACC-FFT Fire Fighter Telephone Module (refer to Figure 1.4 on page 19). Optional modules can
be plugged in and mounted to the main circuit board. The main circuit board is delivered pre-
mounted in the cabinet.
Audio Amplifier Module [ACC-AAM25]
A single Audio Amplifier Module is installed in the ACC-25/50 Series. The amplifier provides 25
watts of power at 25 V
RMS
. An optional module, P/N: FC-XRM70, converts the 25 V
RMS
output to
70.7 V
RMS
. One fully supervised and power-limited speaker circuit is provided on the amplifier
module. The circuit can be wired for Style Y (Class B) or Style Z (Class A) operation.
LEDs are provided to indicate Amplifier Supervision (green indicates amplifier is functional) and
Circuit Trouble (yellow indicates field wiring fault or amplifier fault). The LEDs are only visible
with the panel door open.
Cabinet
The cabinet is red with an attractive navy blue front overlay. A clear window allows viewing of
status LEDs and location of microphone. The backbox measures 26.0" x 15.5" x 4.75" and pro-
vides space for two batteries (up to 18 Amp Hours). The ACC-25/50ZS and ACC-25/50ZST cabi-
nets provide a clear window to view the ACC-ZPMK module which is mounted in the center left
portion of the cabinet and the ACC-FFT module which is mounted in the center right portion of the
cabinet.
Batteries
The cabinet provides space for 18 Amp Hour batteries (charged by integral Power Supply/Battery
Charger module).
Figure 1.8 Cabinets
ACC-2550.wmf
ACC-25/50
ACC-25/50ZS
ACC-2550ZS.wmf
ACC-
ACC-25/50ZST
ACC-2550ZST.wmf