System Sensor SpectrAlert SC2415W Installation And Maintenance Instructions page 3

Figure 1E: Positioning for Maximum Brightness
NOTE: For maximum brightness, unit must be mounted
with flash angles as shown.
System Operation: Non-Synchronized Devices
Figure 2A: Any combination of models powered by a
2-wire circuit
NOTE: Supply power must be continuous for proper operation.
HORN
(+)
(+)
(–)
(–)
Figure 3A: Any combination of models powered by a
4-wire circuit to provide independent horn and strobe
operation (Remove factory installed jumpers, see
Figure 3B)
NOTE: Strobes must be powered continuously for horn operation.
(+)
(+)
H
O
R
N
(—)
C
O
M
B
O
(+)
(+)
S
T
R
O
B
E
(—)
D900-22-00
HORN/STROBE STROBE ONLY
(+)
(+)
(–)
(–)
(+) (+)
H H
O O
R R
N N
C
O
M
B
O
(+)
(+)
S
S
T T
R
R
O
O
B
B
E E
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Horn Selections
The horns on SpectrAlert horn/strobe combo units are fac-
tory set for high volume, temporal code, and electrome-
chanical tone.
Tones:
Electromechanical or 3kHz tones may be field-selected
using the DIP switch selector (See Figs. 2B and 3B for
DIP switch location).
NOTE: When powered from FWR supply, tones will be
modulated (turned on and off) by 120Hz causing the tones
to sound different from DC power.
Temp/Non-Temp:
Temporal coding or Non-Temporal coding can also be
field-selected using the DIP switch.
High/Low Volume:
A0146-00
High or low volume may also be field-selected using
the DIP switch.
Figure 2B: Horns and strobes powered in tandem
NOTE: Supply power must be continuous for proper operation.
FACTORY INSTALLED
SHORTING BAR
TWO WIRE SYSTEM
E
ANY MIX OF MODELS
O
WIRED FOR TANDEM
L
OPERATION
DIP
SWITCH
A0143-00
Figure 3B: Horns and strobes powered independently
(Horn operated on coded power supply)
NOTE: Strobes must be powered continuously for horn operation.
HORNS
_
+
FACTORY INSTALLED
JUMPER REMOVED
E
O
L
E
O
L
_
+
TO NEXT
A0232-00
HORN
OR EOL
3
FROM FACP, MODULE
OR PREVIOUS DEVICE
_
+
STROBE
HORN
STROBE
HORN
_
+
TO NEXT DEVICE
OR EOL
STROBES
_
+
+
STROBE
+
HORN
-
STROBE
-
HORN
Break wire as shown for
_
supervision of connection.
+
DO NOT allow stripped wire
leads to extend beyond switch
TO NEXT housing. DO NOT loop wires.
STROBE
OR EOL
+
+
-
-
A0231-00
A0319-00
I56-1453-012R