System Sensor SpectrAlert S1224MCK Installation And Maintenance Instructions page 3

Candela Selections:
Figure 2: For strobe candela selection, adjust slide
switch located on the rear of the product while watch-
ing the viewing window on the side of the reflector.
NOTE: SpectrAlert selectable out-
put strobes, set at 15 and 15/75cd,
automatically work on both 12V
and 24V power supplies.
NOTE: The strobe is not listed
for 12V operating voltages when
set to 30, 75 or 110 candelas.
Use only those settings marked
as OK in this chart:
Horn selections using 3-position DIP switch on horn/
strobe (refer to Figure 3):
NOTE: When powered from a FWR supply, the horn will be mod-
ulated (turned on and off) by 120Hz causing it to sound different
than if powered by a DC supply.
High/Low Volume
ON=High Volume, OFF=Low Volume
NOTE: The low volume setting of some tones must NOT be used
for public mode applications when the device is powered from a 12-
volt panel. Refer to the Sound Output Guide on the previous page.
Temp/Non-Temp
ON=NON-Temporal, OFF=Temporal
3KHz/Electromechanical
ON=3KHz, OFF=Electromechanical
Figure 3: Horn Factory Default Setting:
The factory default setting is High, Temporal 3, and Electrome-
chanical tone.
OFF ON
Low
Temporal
Electromech.
WARNING
Check terminal polarity before wiring. For proper operation, make
sure the correct wire polarity is applied to the unit.
D900-37-00
A0133-00
Viewing Window
Permissible Candela Settings:
Candela Operating Voltage
Setting
12V 24V
15 OK OK
15/75 OK OK
30 OK
75 OK
110 OK
Factory
DIP Switch
Default
High
Non-Temporal
3000Hz
Base (rear)
firealarmresources.com
System Operation – Non-Synchronized Devices:
Figure 4a. Any combination of models powered by a
2-wire circuit:
HORN
(+)
(+)
HORN
(+)
(+)
(–)
(–)
(–)
(–)
System Operation – Synchronized Devices:
Figure 4b. Any combination of models powered by a
2-wire circuit:
HORN
(+)
(+)
HORN
(+)
(+)
(–)
(–)
SYNCHRONIZATION MODULE
(–)
(–)
SYNCHRONIZATION MODULE
Figure 5: Horns and strobes powered in tandem:
NOTE: Supply power must be continuous for proper operation.
TO NEXT
DEVICE OR
EOL
Figure 6: Any combination of models powered by a 4-
wire circuit to provide independent horn and strobe op-
eration (remove factory installed jumpers, see Figure 8):
(+)
(+)
H
O
R
N
(–)
(–)
C
O
M
B
O
(+)
(+)
S
T
R
O
B
(–) E
(–)
Figure 7: Horns and strobes powered indepen-
dently (horn operated on coded power supply):
NOTE: Strobes must be powered continuously for horn operation.
INDEPENDENT OPERATION
FACTORY INSTALLED
JUMPER WIRES REMOVED
HORN +
A0110-00
TO NEXT
DEVICE OR
EOL
STROBE +
STROBE –
TO NEXT
DEVICE OR
EOL
HORN –
3
HORN/STROBE STROBE ONLY
(+)
(+)
TWO WIRE SYSTEM
E
ANY MIX OF MODELS
HORN/STROBE STROBE ONLY O
WIRED FOR TANDEM
L
(+)
(+)
(–)
(–) TWO WIRE SYSTEM
E
ANY MIX OF MODELS
O
WIRED FOR TANDEM
L
(–)
(–)
HORN/STROBE STROBE ONLY
(+)
(+)
TWO WIRE SYSTEM
E
ANY MIX OF MODELS
O
HORN/STROBE STROBE ONLY
WIRED FOR TANDEM
L
(+)
(+)
(–) (–)
TWO WIRE SYSTEM
E
ANY MIX OF MODELS
O
WIRED FOR TANDEM
L
(–) (–)
TANDEM OPERATION
HORN/STROBE COMBO
Horn +
FACTORY
+
INSTALLED
FROM:
JUMPERS FACP, MODULE
OR PREVIOUS
Strobe +
DEVICE
Strobe – Horn –
–
(+)
NOTE: Strobes must be
H
E
O
O
R
L
powered continuously
N
(–)
FOUR WIRE SYSTEM
for horn operation.
COMBO MODELS
WIRED FOR INDEPENDENT
OPERATION
(HORN CAN BE TURNED OFF
AT THE PANEL WHILE STROBES
CONTINUE TO OPERATE)
(+)
S
T
E
R
O
O
L
B
E
(–)
HORN AND STROBE
HORN +
STROBE +
NOTE: STROBES MUST
BE POWERED CONTINUOUSLY
FOR HORN OPERATION.
STROBE –
FROM:
FACP, MODULE (MDL)
OR PREVIOUS
DEVICE
HORN –
Break wire as shown for
supervision of connection.
DO NOT allow stripped wire
leads to extend beyond switch
housing. DO NOT loop wires.
OPERATION
A0111-00
OPERATION
OPERATION
OPERATION
A0111-00
A0112-00
A0113-00
A0114-00
I56-2257-005R