Ampac FireFinder Series II AS442 Specifications Page 69

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Page 64
FIREFINDER SERIES II INSTALLATION, COMMISSIONING &
OPERATION
Control Module
When the control switch is in;
AUTOMATIC - occupant warning signals and if applicable verbal messaging is under the control of
the microprocessor and outputted to the speaker system when it receives a “warning system” signal
from the FACP.
ISOLATE the occupant warning system is isolated from the FACP “warning system” signal and
even if the signal is present there will be no output.
PUBLIC ADDRESS the occupant warning system can be used locally as a PA system.
Note: Tones are isolated while in PA
MANUAL EVACUATION the occupant warning signal/s will be transmitted over the system.
Indicators
LINE FAULT
(Yellow) In the event of an open or short circuit speaker line the LINE FAULT
indicator (yellow) will be illuminated
ISOLATED
(Yellow) the LED will be illuminated (yellow) when the warning system is isolated
EV20 Cabling
WARNING
SYSTEM
2
1
ORANGE
GREEN
BLACK
PINK
RED
302-718
TB2
CN3
5
4
3
2
1
EV20 CONTROL
4
CN1
MANUAL EVAC
ISOLATE
COMMON 3
2
1
EVACUATION
SYSTEM
302-604A
3
4
2
1
TB2
-
+
1
2
TB1
EV20 222-0008
EV20
OUTPUT
+27V
47K
CN3
CN2
3
CN1 2
3
1
302-475
3
2
1
CN1
3
1
TB1
MIC PRE-AMP
CN2 3
2
1
4
5
+27V
PSU
BRIGADE
MONITOR
BOARD
TB5
5
3
4
TB2
COMMON
IF THE PA OPTION IS NOT
USED INSERT LINK ACROSS
PINS 1 & 2 OF CN3
3
2
1
IN
OUT
GND
47K IS PLACED ACROSS LAST
SPEAKER ON THE CIRCUIT
Figure 85: Typical EV20 & PA Wiring
Note: WARNING SYSTEM” is a monitored O/P. The EOL is on board the EV20 and is
effectively made to be O/C (at TB1) during an EV20 fault condition. This produces the fault condition
at the FACP.
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