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AL Alarm circuit
– Terminal blocks
Terminal block
Description
+IN
24V
⎓
positive alarm circuit input coming from the fire control panel (siren
output) or the sirens/bells in cascade.
IN-
Negative alarm circuit input coming from the fire control panel (siren
output) or the sirens/bells in cascade.
+OUT
24V
⎓
positive alarm circuit output for driving other devices connected in
cascade.
OUT-
Negative alarm circuit output for driving other devices connected in
cascade.
Note
: the negative of the power supply is not connected to the negative of the alarm circuit that is an
opto-isolated section; the negative alarm circuit must be connected to the same power source that
provides the positive alarm circuit (siren output).
Acoustic tone - Jumpers
A
B 2
Description
OFF
OFF
Tone 1
– frequency sweep 800
970Hz in 1s
OFF
ON
Tone 2
– two tones 610Hz for 0.5s and 920Hz for 0.5s
ON
OFF
Tone 3
– pulsed 920Hz for 0.5s ON and for 0.5s OFF
ON (*)
ON (*)
Tone 4
– continuous 920Hz
(*) Default setting
Remaining micro-switches are unused.
INSTALLATION
148
1
9
0
Fixing
hole
Fixing
hole
Fixing
hole
Fixing
hole
Cable
passage
Figure 2 - View of the bottom of the siren
– dimensions in mm
Install the siren following the instructions reported below:
Remove the front cover from the siren unscrewing the front screw.
Break the plastic cable passage.
Install on a wall using the relevant fixing holes placed on the bottom of the enclosure (as
illustrated in
figure 2
).
Perform the electrical connections.
Put back the front cover and fix it screwing its front screw.
