®
OPTICAL-ACOUSTIC
OUTDOOR SIREN
SP-4002
sp4002_en 12/09
The SP-4002 optical-acoustic outdoor siren comes in three versions differing by the color of optical
signaling (red in SP-4002 R, blue in SP-4002 BL and orange in SP-4002 O).
1. Features
•
Acoustic signaling by means of piezoelectric transducer.
•
Optical signaling by means of LEDs.
•
Battery as backup power supply.
•
Four selectable tones for acoustic signaling.
•
Weatherproofed electronic circuit.
•
Tamper protection in 2 ways – cover opening or tearing housing from the wall.
•
Inner cover of galvanized metal sheet.
•
Housing made of PC LEXAN high-impact polycarbonate, featuring a very high mechanical
strength.
Explanations for Fig. 1:
1 - housing cover.
2 - inner cover of galvanized
sheet.
3 - housing base.
4 - battery.
5 - piezoelectric transducer.
6 - tamper contact (NC).
7 - electronics board.
8 - housing
cover
locking
screws.
Fig. 1. View of the siren.
2. Functioning
The siren requires 12 V ±15% power supply. The signaling is generated by changing the STA input
status (acoustic signaling) or the STO input status (optical signaling). The way of triggering the alarm
is set by means of the PLA and PLO pins. The alarm can only be triggered 20 seconds after power-
up, provided that during that time the signaling control input status was stable and consistent with that
