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Features 

 

Individually addressed and controlled multi-candela 
TrueAlert ES V/O (visible only) notification 
appliances provide: 

 

Multi-candela xenon strobe with synchronized 1 Hz flash 
rate and with intensity 

programmable from the control 

panel

 or jumper selected as 15, 30, 75, 110, 135, or 185 cd 

 

Advanced addressable notification controlled by 

IDNAC 

SLCs

 from Simplex

®

 4100ES fire alarm control panels with 

EPS/EPS+ power supplies (and 4009 IDNAC Repeaters) 
providing 

regulated 29 VRMS

 allowing strobes to 

operate with lower current even under battery backup 

 

Wiring supervision to each appliance allowing 
“T-tapped” connections for Class B circuits to simplify 
wiring (Class A circuits require in/out wiring) 

 

Self-Test Mode

 allows an on-board sensor to detect the 

strobe output and then report its status to the control 
panel 

 

TrueAlert Device Reports

 at the control panel detailing 

appliance point ID, custom label, type, and candela 
setting (see sample on page 3) 

 

Magnet Test diagnostics

 to assist checkout and testing of 

appliances and wiring and 

Electrical test point access

 

without removing cover 

 

Compatibility with ADA requirements; (refer to 
important installation information on page 3) 

 

Compatibility with legacy TrueAlert addressable systems 
for upgrade and replacement (see page 4) 

 

Listed to UL Standard 1971 and ULC Standard S526 

LED Indicator and Magnet Test feature: 

 

Appliance LED can be selected to display each polling 
cycle to indicate appliance supervision 

 

When the controller is in diagnostic mode, the Magnet 
Test pulses the LED to indicate appliance address and 
can be set to also briefly flash the strobe  

Mechanical design features include:  

 

Rugged, high impact, flame retardant thermoplastic 
housing in red with white letters or white with red 
letters, with clear lens, available with FIRE, ALERT, 
FEU, FEU/FIRE, or blank lettering 

 

Separate covers are available to change appliance type 
on-site or for replacement; covers can be easily removed 
without disturbing the connected housing and avoiding 
trouble conditions 

 

A separate mounting plate allows wiring to be completed 
before appliance is mounted; use with single gang, double 
gang, or 4-inch square box, flush or surface mount 

 

In/out wiring terminals for 18 AWG to 12 AWG 

 

Optional mounting adapters are available to cover 
surface mounted electrical boxes and to adapt to 
Simplex 2975-9145 boxes 

 

Optional red wire guards (see page 2 for details) 

*

 These products have been approved by the California State Fire Marshal (CSFM) pursuant 

to Section 13144.1 of the California Health and Safety Code. See CSFM Listing 

7125-0026:0373 for allowable values and/or conditions concerning material presented in this 

document. Additional listings may be applicable; contact your local Simplex product supplier 

for the latest status. Listings and approvals under Simplex Time Recorder Co. are the 

property of Tyco Fire Protection Products.

 

 

TrueAlert ES Addressable Strobes are Available in Red 

with White Lettering and White with Red Lettering 

Description 

 

TrueAlert ES addressable strobes 

are individually 

addressed visible notification appliances that receive 
power, supervision, and control signals from a Simplex 
fire alarm control panel providing 

IDNAC

 Signaling Line 

Circuits (SLCs). (See compatibility list on page 4.) 

Strobe Application Reference 

 

Proper selection of visible notification is dependent on 
occupancy, location, local codes, and proper applications 
of: the 

National Fire Alarm 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). 

TrueAlert ES Operation Advantage 

 

TrueAlert ES addressable appliances on IDNAC 
SLCs

 provide separate visible (and audible) notification 

using a single two-wire circuit that also 

confirms connection 

to the individual notification appliance’s electronic circuit

This operation increases circuit supervision integrity by 
providing supervision that extends beyond the appliance 
wiring connections. 

Reduced current allows efficient IDNAC SLC 
operation.

 With 

IDNAC SLCs

, a 

constant

 29 VRMS 

source voltage is maintained, even during battery standby, 
allowing strobes to operate at higher voltage with lower 
current and ensuring a consistent current draw and voltage 
drop margin under both primary power and secondary 
battery standby. Efficiencies include wiring distances up to 
2 to 3 times farther than with conventional notification, or 
support for more appliances per IDNAC SLC, or use of 
smaller gauge wiring, or combinations of these benefits, all 
providing installation and maintenance savings with high 
assurance that appliances that operate during normal system 
testing will operate during worst case alarm conditions. 

 

TrueAlert       Addressable Notification Appliances 

UL, ULC, CSFM Listed;

 

Visible Notification Appliances, Wall Mount

 

FM Approved*

 

Multi-Candela Strobes, Model Series 49VO

 

 

 

S49VO-0001-3  8/2014

 

 

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