Features
Speaker/visible (S/V) notification appliances with multi-tapped
speaker and multi-tapped high intensity xenon strobe with
synchronized flash:
- Rugged, high impact, flame retardant thermoplastic housings are available for wall or ceiling mount
- Operation is compatible with ADA requirements (see Wall mount installation reference)
Wall mount S/V features:
- Housings are available in red or white with clear lens with contrasting white or red FIRE lettering
- Covers are available separately to convert housing color
Ceiling mount S/V features:
- Housing is white with clear lens
- Red FIRE lettering is printed on two sides
Audible notification appliance (speaker):
- High quality voice and tone reproduction with taps for 1/4 W, 1/2 W , 1 W, or 2 W, at 25 VRMS or 70.7 VRMS
- Capacitor input for connection to supervised notification appliance circuits
- Speakers are wired separately from strobe wiring
- UL listed to Standard 1480 and ULC-S541*
- Compliant with NFPA 72, 520 Hz Low Frequency Signal Requirements for Sleeping Areas
Visible notification appliance (strobe):
- 24 VDC xenon strobe; intensity is selectable as 15, 30, 75, or 110 candela with visible selection jumper secured behind strobe housing
- Strobes are activated from NACs selected to provide Simplex strobe synchronization signals or from separate strobe Synchronization
Modules that are available for Class B or Class A operation
- Regulated circuit design ensures consistent flash output and provides controlled inrush current
- UL listed to Standard 1971 and ULC-S526*
Options for wall mounted S/Vs:
- Red or white adapters to cover surface mounted electrical boxes
- Red adapter for mounting to 2975-9145 boxes
- Red wire guard
Description
Multi-Candela TrueAlert S/Vs with speaker and synchronized
strobe
Provide convenient installation to standard electrical boxes with
extensions. The enclosure designs are both impact and vandal resistant
and provide a convenient strobe intensity selection. You can select
each model for strobe intensity output. This minimizes on-site model
inventory and easily accommodates changes encountered during
construction.
Wall mount
S/V housings are a one-piece assembly, including lens, that mounts to
a 4 in. square electrical box with extension, see Wall mount installation
reference. You can quickly remove the cover with a tool and covers are
available separately for color conversion.
Ceiling mount
S/Vs also install using 4 in. electrical boxes with an extension. See Ceiling
mount S/V installation reference and 2905-9946 tile bridge dimensions.
Strobe Intensity Selection
During installation, a selection plug at the back of the housing
determines the desired strobe intensity. An attached flag with black
letters on a highly visible yellow background allows the selected intensity
to be seen at the side of the strobe lens.
Synchronized strobes
Multiple strobes
When multiple strobes and their reflections can be seen from one location, synchronized flashes reduce the probability of photo-sensitive reactions
as well as the annoyance and possible distraction of random flashing. The multi-candela strobes of these S/Vs are activated by NACs that provide the
Simplex synchronization format. For additional information, refer to data sheet S4905-0003.
Strobe application selection
Proper selection of visible notification is dependent on occupancy, location, local codes, and proper applications of: the National Fire Alarm and
Signaling Code (NFPA 72), ANSI A117.1; the appropriate model building code: BOCA, ICBO, or SBCCI; and the application guidelines of the Americans
with Disabilities Act (ADA).
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