System Sensor Dual Strobe Expander Plates User Manual
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
800/736-7672, FAX: 630/377-6495
Dual Strobe and Dual Strobe with Speaker
www.systemsensor.com
Expander Plates for Emergency Communications
SEP-SW – Strobe Expander Plate model and SEP-BBSW Back Box Skirt model is compatible with: SW, SWH, SW-P, SWH-P
SEP-SPSW – Speaker Strobe Expander Plate and SPSEP-BBSW Back Box Skirt model is compatible with: SPSW, SPSWH, SPSW-P, SPSWV, SPSWV-P, SPSWH-P
PRODUCT SPECIFICATIONS
Operating Temperature: Standard Products 32°F to 120°F (0°C to 49°C)
Humidity Range: Standard Products 10 to 93% Non-condensing
Strobe Flash Rate: 1 flash per second
Nominal Voltage: Regulated 12VDC/FWR or regulated 24DC/FWR
Operating Voltage Range (includes fire alarm panels with built in sync): 8 to 17.5V (12V nominal) or 16 to 33V (24V nominal)
Operating Voltage with MDL3 Sync Module: 8.5 to 17.5V (12V nominal) or 16.5 to 33V (24V nominal)
Input terminal wire gauge: 12 to 18 AWG
NOTE : Strobes will operate at 12 V nominal for 15 & 15/75 candela settings only. Switching between ranges is automatic.
SEP-SPSW: Speaker Strobe Expander Plate, Standard Candela, White
SEP-SW: Strobe Expander Plate, Standard Candela, White
SPSEP-BBSW: Speaker Strobe Expander Plate Back Box Skirt, White
SEP-BBSW: Strobe Expander Plate Back Box Skirt, White
DIMENSIONS FOR PRODUCTS AND ACCESSORIES
SEP-SW & SEP-SPSW SPSEP-BBSW & SEP-BBSW
Length Width Depth Length Width Depth
9.6˝ 245mm 5.1˝ 130 mm 3.7˝ 94mm 10.1˝ 257mm 5.6˝ 142mm 2.5˝ 64mm
MOUNTING BOX OPTIONS
SEP-SW SEP-SPSW SPSEP-BBSW & SEP-BBSW
4˝ x 4˝ x 1½˝ Single Gang, Double Gang, 4˝ Octagon 4˝ x 4˝ x 21/8˝ or deeper 4˝ x 4˝ x 21/8˝
I56-3829-001R
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 Dual Strobe and Dual Strobe with Speaker Expander
Plates for emergency communications uses a single device plate to perform the
functions of two to three devices on a back box. This combination of multiple
devices on a single plate and back box lowers the overall cost of the installation and improves aesthetics by requiring fewer devices on the wall.
The expander plate provides fast and easy installation – first, mount the plate
to a junction box and connect the field wiring to the terminals. Then, hinge
and attach the strobe or speaker strobe device with a captured mounting screw
to complete the installation. This product is comparable to existing SpectrAlert
Advance mounting plate installations.
Dual Strobe and Dual Strobe with Speaker Expander Plates are designed to
be used in 12 or 24 volt, DC or FWR (full wave rectified) systems. Amber
lens strobes are UL1638 Listed (Visual Signaling Appliances) for Private Mode
General Utility Signaling. All SpectrAlert Advance products are suitable for use
in synchronized systems. The System Sensor MDL3 module may be used to
provide synchronization.
The Dual Strobe and Dual Strobe with Speaker Expander Plates are
designed for use on wall and ceiling applications.
NOTE: For ceiling mount applications the amber lens strobe meets UL 1638
light requirements, however the device will not meet all of UL1971 polar plot
light requirements.
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 CDROM. See Figures 1-4 for wiring diagrams and shorting spring information.
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.
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. All products meet
the light output profiles specified in the appropriate UL Standards. For amber
lensed strobes used for full profile measurement, listed candela ratings must
be reduced in accordance with Table 2. Use Table 1 to determine the current
draw for each candela setting.
NOTE: SpectrAlert Advance products set at 15 and 15/75 candela work on either 12V or 24V power supplies. The products are not listed for 12V operating
voltages when set to any other candela settings.
SS-120-005 1 I56-3829-001R
Alert Strobe or EoL
SHORTING SPRING
FIGURE 1. WIRING SEP-SPSW SPEAKER STROBE EXPANDER PLATE,
STANDARD CANDELA,WHITE:
Output to Next Alert
Strobe or EoL
(+)
(–)
(+)
(–)
Input from Power
Supply for Alert Strobe
or Prior Alert Strobe
Input from
Amplifier or
Prior Speaker
Input from
FACP or Prior
Fire Strobe
(–)
(+)
(–)
(+)
(–)
Output to Next
Speaker or EoL
(+)
(–)
Output to Next
Fire Strobe or EoL
(+)
A0445-00
NOTE: The total number of strobes on a single NAC must not exceed 40 for
24 volt applications or 12 for 12 volt applications. Loop resistance on a single
NAC should not exceed 120 ohms for 24 volt and 30 ohms for 12 volt systems.
FIGURE 2. SHORTING SPRING ON SEP-SPSW SPEAKER STROBE
EXPANDER PLATE, STANDARD CANDELA,WHITE:
FIGURE 4. SHORTING SPRING ON SEP-SW STROBE EXPANDER
PLATE, STANDARD CANDELA, WHITE:
A0448-00
NOTE: A shorting spring is provided between terminals 2 and 3 of the mounting plate to enable wiring checks after the system has been wired, but prior
to installation of the final product. This spring will automatically disengage
when the product is installed, to enable supervision of the final system.
TABLE 1. STROBE CURRENT DRAW ( ) FOR SEP-SW, SEP-SPSW: mA
Candela
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
11 5 NA NA 210 205
TABLE 2: CANDELA DERATING FOR AMBER LENS STROBE
Cd Switch Setting
On-Axis Rating
(UL 1638)
15 15 12
15/75 15/75 15/75
30 30 24
75 75 60
95 95 75
110 110 85
11 5 11 5 90
8–17.5 Volts 16–33 Volts
DC FWR DC FWR
Equivalent Cd Rating for
Wall profile (UL 1971)
A0446-00
Shorting Spring
NOTE: Shorting springs are provided between terminals 2 and 3 and 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 3. WIRING THE SEP-SW: STROBE EXPANDER PLATE,
STANDARD CANDELA, WHITE:
Input from
FACP or Prior
Fire Strobe
Input from Power
Supply for Alert Strobe
or Prior Alert Strobe
(–)
(+)
(–)
(+)
(–)
Output to Next
Fire Strobe or EoL
(+)
(–)
Output to Next
(+)
NOTE: UL1971 is not applicable to mass notification devices, but these readings were obtained using the measurement procedure specified under UL1971.
IMPORTANT: For more information on current draw, light output and sound
output data, reference Speaker Strobe installation manual I56-3935 and Strobe
only installation manual I56-2769.
MOUNTING THE SEP-SPSW SPEAKER STROBE EXPANDER PLATE
1. Attach the speaker strobe expander plate to the junction box as shown in
Figure 5. The speaker strobe expander plate is compatible with a 4˝ x 4˝
x 21/8˝ junction box. If using a back box skirt, attach the speaker strobe
expander plate to the back box skirt and then attach the entire assembly
to the junction box (see figure 6).
2. Connect the field wiring to the terminals, as shown in Figure 1.
3. If the speaker strobe device is not to be installed at this point, use the
paint cover to prevent contamination of the speaker strobe expander
plate.
4. To attach the speaker strobe device to the speaker strobe expander plate,
remove the paint cover, then hook the tabs on the product housing into
the grooves on the strobe plate.
5. Swing the speaker strobe device into position to engage the pins on the
device with the terminals on the speaker strobe expander plate. Make
sure that the tabs on the back of the device housing fully engage with the
expander plate.
6. Secure the speaker strobe device by tightening the single mounting
screw in the front of the speaker strobe housing. For tamper resistance,
the standard captive mounting screw may be replaced with the enclosed
Torx screw.
A0447-00
SS-120-005 2 I56-3829-001R
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