System Sensor SPSW-ALERT User Manual
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
Selectable Output Amber Lens
Speaker/Strobe
For use with model SPSW-ALERT
SPECIFICATIONS
Operating Temperature: 32°F to 120°F (0°C to 49°C)
Humidity Range: 10% to 93% Non-condensing
Nominal Voltage: (speakers) 25 Volts or 70.7 Volts (nominal)
Max. Supervisory Voltage: (speakers and strobes) 50 VDC
Strobe Flash Rate: 1 flash per second
Nominal Voltage: (strobes) Regulated 12VDC or FWR or regulated 24VDC or FWR
Speaker Frequency Range: 400 to 4000 Hz
Power Settings: (Speakers)
Operating Voltage Range: 8 to 17.5V (12V nominal) or 16 to 33V (24V nominal)
(includes fire alarm panels with built in sync)
Operating Voltage with MDL Sync Module: 9 to 17.5V (12V nominal) or 17 to 33V (24V nominal)
Input Terminal Wire Guage: 12-18 AWG
NOTE: Strobes will operate at 12 V nominal for 15 & 15/75 candela settings only. Switching between ranges is automatic.
Dimensions for Speaker/Strobes and Accessories
Wall Product Length Width Depth
SPS Speaker/Strobe 6.0˝ 5.0˝ 4.7˝ (including lens and speaker)
Surface Mount Skirt 6.5˝ 5.0˝ 2.7˝*
*Depth above finished surface of wall or ceiling.
WARNING: Not to be used as a visual public mode alarm notification appliance.
NOTICE: This manual shall be left with the owner/user of this equipment.
GENERAL DESCRIPTION
The SpectrAlert Advance amber lens strobe products offer an amber colored
strobe with the word “ALERT” printed on the white housing to comply with
the latest standard for mass notification systems. They are designed to be used
in 12 or 24 volt, DC or FWR (full wave rectified) systems. Amber lens strobes
are UL Listed under 1638 (Visual Signaling Appliances) for Private Mode General Utility Signaling. Device may be mounted to either wall or ceiling. All
SpectrAlert Advance products are suitable for use in synchronized systems.
The System Sensor MDL module may be used to provide synchronization. The
speaker portion can be operated with distribution amplifiers having an output
voltage of either 25 or 70.7 volts. With its low total harmonic distortion, the
SpectrAlert Advance SP series offers high fidelity sound output. The speakers
operate at any one of four input power levels. These products are electrically
backward compatible with the previous generation of SpectrAlert notification
appliances.
FIRE ALARM SYSTEM CONSIDERATIONS
All wiring must be installed in compliance with the National Electrical Code
(NEC) and applicable local codes. System Sensor recommends installing fire
alarm speakers in compliance with NFPA 72, ANSI/UL1480 and NEC 760.
1
/4, 1/2, 1, 2 watts
LOOP DESIGN AND WIRING
The system designer must make sure that the total current drawn by the devices on the loop does not exceed the current capability of the panel supply,
and that the last device on the circuit is operated within its rated voltage.
The current draw information for making these calculations can be found in
the tables within this manual. For convenience and accuracy, use the voltage
drop calculator on the System Sensor website (www.systemsensor.com) or
CD-ROM.
When calculating the voltage available to the last device, it is necessary to
consider the voltage drop due to the resistance of the wire. The thicker the
wire, the smaller the voltage drop. Wire resistance tables can be obtained
from electrical handbooks. Note that if Class A wiring is installed, the wire
length may be up to twice as long as it would be for circuits that are not fault
tolerant.
NOTE: For 24 volt applications, the total number of strobes on a single NAC
must not exceed 40, with a maximum loop resistance of 120 ohms. For 12 volt
applications, the total number of strobes must not exceed 12, with a maximum loop resistance of 30 ohms.
NOTE: Supply power for strobe must be continuous for proper operation.
I56-3935-001R
www.systemsensor.com
SS-140-002 1 I56-3935-001R
CAUTION
FIGURE 1. WIRING DIAGRAM:
INPUT FROM
AMPLIFIER
INPUT FROM
POWER
SUPPLY
(–)
(+)
(–)
(+)
(–)
OUTPUT TO
NEXT SPEAKER
(+)
(–)
OUTPUT TO
NEXT STROBE
(+)
OR EOL
OR EOL
A0388-00
ELECTRICAL WIRING
1. Connect the speaker as shown in Figure 1.
NOTE: Do not loop electrical wiring under terminal screws. Wires con-
necting the device to the control panel must be broken at the device
terminal connection in order to maintain electrical supervision.
2. There are two rotary switches on the back of the product The first switch
is used to select either 25 or 70.7 volts input for the speaker portion. The
second switch is used to select the input power of 1/4, 1/2, 1 or 2 watts.
See diagram.
SHORTING SPRING
NOTE: Shorting springs are provided between terminals 2 and 3 and between
terminals 5 and 6 of the mounting plate to enable wiring checks after the
system has been wired, but prior to installation of the final product. These
springs will automatically disengage when the product is installed, to enable
supervision of the final system.
FIGURE 2. SHORTING SPRING
SHORTING SPRINGS
A0391-00
FIGURE 3. SPEAKER WATTAGE AND VOLTAGE SETTINGS:
TABLE 1. SOUND LEVELS FOR EACH TRANSFORMER POWER TAP:
UL Reverberant (dBA @ 10 ft.)
2W 85
1W 82
1
/2W 79
1
/4W 76
UL Anechoic (dBA @ 10 ft.)
2W 88
1W 86
1
/2W 83
1
/4W 80
Signal levels exceeding 130% rated signal voltage can damage the speaker.
Consequently, an incorrect tap connection may cause speaker damage. This
means that if a 25V tap is selected when a 70.7V amplifier is being used,
speaker damage may result. Therefore, be sure to select the proper taps for the
amplifier voltage/input power level combination being used.
CANDELA SELECTION
Adjust the slide switch on the rear of the product to position the desired candela setting in the small window on the front of the unit. For amber lensed
strobes used for full profile measurement, listed candela ratings must be reduced in accordance with Table 3. Use Table 2 to determine the current draw
for each candela setting.
NOTE: SpectrAlert products set at 15 and 15/75 candela automatically work
on either 12V or 24V power supplies. The products are not listed for 12V operating voltages when set to any other candela settings.
TABLE 2. STROBE CURRENT DRAW MEASUREMENTS:
Strobe Current Draw(mA)
Candela
8-17.5 Volts 16-33 Volts
DC FWR DC FWR
Standard Candela Range 15 123 128 66 71
15/75 142 148 77 81
30 NA NA 94 96
75 NA NA 158 153
95 NA NA 181 176
110 NA NA 202 195
115 NA NA 210 205
TABLE 3. CANDELA DERATING:
Cd Switch Setting
On-Axis Rating
(UL 1638)
Equivalent Cd Rating for
UL1971 Profile
15 15 12
15/75 15/75 15/75
30 30 24
75 75 60
95 95 75
110 110 85
115 115 90
NOTE: UL1971 is not applicable to mass notification devices, but these readings
were obtained using the measurement procedure specified under UL1971.
MOUNTING
1. Attach mounting plate to junction box as shown in Figure 4. The mounting
plate is compatible 4˝ x 4˝ x 21/8˝ junction boxes. If using a back box skirt or
trim ring, attach the mounting plate to the skirt or trim ring and then attach
the entire assembly to the junction box (see Figures 4 and 5).
2. Connect field wiring to terminals, as shown in Figure 1.
3. If the product is not to be installed at this point, use the paint cover to
prevent contamination of the mounting plate.
4. To attach product to mounting plate, remove the paint cover, then hook
C0419-00
tabs on the product housing into the grooves on mounting plate.
SS-140-002 2 I56-3935-001R
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