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I56-5846TRG-003 

 

 2/1/2021

BEFORE INSTALLING

Please read the System Sensor Audible Visible Application Reference Guide, 
which provides detailed information on notification devices, wiring and spe-
cial applications. Copies of this manual are available from System Sensor. 
NFPA 72 and NEMA guidelines should be observed. 

Important: 

The notification appliance used must be tested and maintained 

following NFPA 72 requirements. 

GENERAL DESCRIPTION

These notification appliances

 offer a wide range of audible and visible devices 

for life safety notification. Our 2-wire horn strobes, chime strobes and strobes 
come with 8 field selectable tone and volume combinations and 7 field select-
able candela settings. Intended for indoor applications and approved for ceil-
ing mount installations. 
These 2-wire horn strobes and strobes are public mode notification appliances 
intended to alert occupants of a life safety event. The 2-wire chime strobe 
is a private mode notification appliance. The horn is listed to ANSI/UL 464 
requirements (public mode) and the strobe is listed to ANSI/UL 1638 (public 
mode). 2-wire chime strobe is a private mode notification appliances intended 
to alert trained personnel to investigate a life safety event and take appropriate 
actions. The chime portion of the chime strobe is listed to ANSI/UL 464 (pri-
vate mode) and the strobe portion is listed to ANSI/UL 1638 (private mode). 
These strobes are designed to be used in 12 VDC, 24VDC, or 24V FWR (full 
wave rectified) systems. AV devices can be activated by a compatible Triga 
fire alarm control panel or power supply. Refer to the appropriate fire alarm 
control panel manufacturer or power supply for more information. 
These ceiling 2-wire horn strobes, 2-wire chime strobes, and strobes come 
enabled with System Sensor synchronization protocol which requires connec-
tions to a power supply capable of generating the System Sensor synchroniza-
tion pulses, a FACP NAC output configured to System Sensor synchronization 
protocol, or the use of MDL3 module to generate the synchronization protocol. 

FIRE ALARM SYSTEM CONSIDERATIONS

The National Fire Alarm and Signaling Code, NFPA 72, requires that all noti-
fication appliances, used for building evacuation installed after July 1, 1996, 
produce temporal coded signals. Signals other than those used for evacuation 

purposes do not have to produce the temporal coded signal. Triga recom-
mends spacing notification appliances in compliance with NFPA 72. 

SYSTEM DESIGN

The system designer must make sure that the total current draw 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 cur-
rent draw information for making these calculations can be found in the tables 
within the manual. 
When calculating the voltage available to the last device, it is necessary to 
consider the voltage due to the resistance of the wire. The thicker the wire, the 
smaller the voltage drop. Wire resistance tables can be obtained from electri-
cal 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. 
The total number of strobes on a single NAC must not exceed 69 for 24 volt 
applications.

AVAILABLE TONES

These models offer a wide variety of tones for your life safety needs, including 
temporal 3 pattern (½ second on, ½ second off, ½ second on, ½ second off, 
½ second on, 1½ off and repeat) which is specified by ANSI and NFPA 72 for 
standard emergency evacuation signaling. 
To select the tone, turn the rotary switch on the back of the product to the 
desired setting. (See Figure 1.) Available horn settings can be found in Table 1. 
Available chime settings can be found in Table 2. 

AVAILABLE CANDELA SETTINGS

These models offer a wide range of candela settings for your life safety needs. 
In order to select your candela output, adjust the slide switch on the rear of the 
product to the desired candela setting on the selector switch. (See Figure 2.)
The candela setting can also be verified by looking into the small window on 
the front of the unit. See Table 3 for candela settings for ceiling products. All 
products meet the light output profiles specified in the appropriate UL Stan-
dards. (See Figures 3 to 5.)

INSTALLATION AND MAINTENANCE INSTRUCTIONS

Selectable Output  

Horn Strobes, Chime Strobes  

and Strobes – Ceiling Mount

For use with the following models: 
Ceiling Mount Horn Strobes: 

TR-PC2RL, TR-PC2WL

Ceiling Mount Chime Strobes: CHSCRL, CHSCWL
Ceiling Mount Strobes: 

TR-SCRL, TR-SCWL,

 SCWL-CLR-ALERT, SCRL-P, SCWL-P

PRODUCT SPECIFICATIONS

Standard Operating Temperature:

32°F to 120°F (0°C to 49°C)

Humidity Range:

10 to 93% Non-condensing

Strobe Flash Rate

1 flash per second

Nominal Voltage:

Regulated 12VDC or regulated 24DC/FWR

Operating Voltage Range:

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

DIMENSIONS FOR PRODUCTS AND ACCESSORIES

MOUNTING BOX OPTIONS

CEILING PRODUCTS

Diameter

Depth

2-Wire Indoor Products

Strobe, Chime Strobe and Horn Strobe

6.83" 

(173.5mm)

2.47" 

(62.7mm)

4" x 4" x 1½", Single Gang, Double Gang,  

4" Octagon, SBBCRL/WL (ceiling)

Strobe, Chime Strobe, and Horn Strobe with 
SBBCRL/WL Surface Mount Back Box 

6.92" 

(175.8mm)

2.50" 

(63.5mm)

NOTICE:

 This manual shall be left with the owner/user of this equipment.

I56-5846TRG-00

3

TRIGA Life Safety Systems, LLC

7600 Olde Eight Rd.

Hudson, Ohio 4426-1057

Tel: +1 330-577-5199. Email: [email protected] 

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