System Sensor L-Series: 4-Wire Horn Strobes - Ceiling (I56-6516) Product Manual

System Sensor L-Series: 4-Wire Horn Strobes - Ceiling (I56-6516) Product Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS Selectable Output Four-wire Horn Strobes – Ceiling Mount

For use with the following models: Ceiling Mount Horn Strobes: PC4RL and PC4WL PRODUCT SPECIFICATIONS Standard Operating Temperature: Humidity Range: Strobe Flash Rate Nominal Voltage: Operating Voltage Range: Operating Voltage with MDL3 Sync Module: Input terminal wire gauge: 32°F to 120°F (0°C to 49°C) 10 to 93% Non-condensing 1 flash per second Regulated 12VDC or regulated 24DC/FWR 8 to 17.5V (12V nominal) or 16 to 33V (24V nominal) 8.5 to 17.5V (12V nominal) or 16.5 to 33V (24V nominal) 12 to 18 AWG 3825 Ohio Avenue, St. Charles, Illinois 60174 800/736-7672, FAX: 630/377-6495

DIMENSIONS FOR PRODUCTS AND ACCESSORIES Horn Strobe CEILING PRODUCTS Horn Strobe with SBBCRL/WL Surface Mount Back Box Diameter 6.83" (173.5mm) 6.92" (175.8mm)


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

Depth 2.47" (62.7mm) 2.50" (63.5mm) BEFORE INSTALLING Please read the System Sensor Audible Visible Application Reference Guide, which provides detailed information on notification devices, wiring and special applications. Copies of this manual are available from System Sensor. NFPA 72 and NEMA guidelines should be observed.


The notification appliance used must be tested and maintained following NFPA 72 requirements. GENERAL DESCRIPTION System Sensor series of notification appliances offer a wide range of audible and visible devices for life safety notification. Our 4-wire horn strobes come with 10 field selectable tone and volume combinations and 7 field selectable candela settings. Intended for indoor applications and approved for ceiling mount installations. 4-wire horn strobes and strobes are public mode notificati2on appliances in tended to alert occupants of a life safety event. The horn is listed to ANSI/ UL 464 requirements (public mode) and the strobe is listed to ANSI/UL 1638 (public mode). System Sensor strobes are designed to be used in 12 VDC, 24VDC, or 24V FWR (full wave rectified) systems. System Sensor AV devices can be activated by a compatible fire alarm control panel or power supply. Refer to the appropriate fire alarm control panel manufacturer or power supply for more information. System Sensor ceiling 4-wire horn strobes are electrically backward compat ible with the previous generation, since 1996, of notification appliances. They come enabled with System Sensor synchronization protocol which requires connections to a power supply capable of generating the System Sensor syn chronization pulses, a FACP NAC output configured to System Sensor synchro nization 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. System Sensor recommends spacing notification appliances in compliance with NFPA 72. MOUNTING BOX OPTIONS 4-wire Indoor Products 4" x 4" x 1½", Double Gang, 4" Octagon, SBBCRL/WL (ceiling) 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 current draw information for making these calculations can be found in the tables within the manual. For convenience and accuracy, use the voltage drop calculator on the System Sensor website (

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 System Sensor offers a wide variety of tones for your life safety needs, includ ing 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. NOTE: The standard mini-horn sound is 3.1 kHz. The legacy sound of the SpectrAlert Advance line is EM (Electro-mechanical): this hops frequencies between 2Hz and 4Hz. For EM Coded positions, temporal coding must be provided by the NAC. If the NAC voltage is held constant, the horn output will remain constantly on.

FIGURE 1. AUDIO SELECTOR A0473-00 1 I56-6516-002 10/02/2018

TABLE 1. HORN TONES Pos 1 2 3 4 5 6 7 8 9 10 Tone Temporal Temporal Non-Temporal Non-Temporal 3.1 kHz Temporal 3.1 kHz Temporal 3.1 kHz Non-Temporal 3.1 kHz Non-Temporal Coded 3.1 kHz Coded Volume Setting High Low High Low High Low High Low High High AVAILABLE CANDELA SETTINGS System Sensor offers 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.) FIGURE 2. CANDELA SELECTOR A0486-00 CURRENT DRAW AND AUDIBILITY RATINGS The 4-wire device provides two independent circuits, one for the Horn and another for the Strobe. The current draw for each Strobe setting is listed in Table 3, and audibility ratings for each Horn Tone setting is listed in Table 4. TABLE 3. CEILING-MOUNT STROBE CURRENT DRAW (mA) Candela 15 30 75 95 115 150 177 8-17.5 Volts DC 87 153 16-33 Volts DC 41 63 111 134 158 189 226 FWR 60 86 142 164 191 228 264


Products set at 15 and 30 candela automatically work on ei ther 12V or 24V power supplies. The products are not listed for 12V DC operation when set to any other candela settings.

FIGURE 3. LIGHT OUTPUT - VERTICAL DISPERSION, CEILING TO WALLS TO FLOOR Degrees* 0 5-25 Percent of Rating 100 90 30-45 50 60 65 70 75 80 85 90 75 55 45 35 35 30 30 25 25 A0468-00 FIGURE 4. LIGHT OUTPUT – HORIZONTAL DISPERSION Degrees* 0 5-25 30-45 50 55 60 65 70 75 80 85 90 Compound 45 to the left Compound 45 to the right Percent of Rating 100 90 75 55 45 40 35 35 30 30 25 25 24 24 A0467-00 This is generated text for figtxt.

FIGURE 5. VERTICAL DISPERSION, WALL TO FLOOR Degrees* 0 5-30 35 40 45 50 55 60 65 70 75 80 85 90 Percent of Rating 100 90 65 46 34 27 22 18 16 15 13 12 12 12 A0469-00 *Tolerance of ±1 degree is permitted.

TABLE 4. HORN CURRENT DRAW (mA) AND SOUND OUTPUT - REVERBERANT (DBA) Pos 1 2 3 4 5 Tone Temporal Temporal Non-Temporal Non-Temporal 3.1 kHz Temporal Volume Setting High Low High Low High 8-17.5 Volts DC 39 28 43 29 39 16-33 Volts DC 44 32 47 32 41 FWR 54 54 54 54 54 Reverberant Sound Output (dBA) 8-17.5 V 16-33 V DC 84 DC 89 FWR 89 75 85 76 83 83 90 84 88 83 90 84 88 6 7 3.1 kHz Temporal 3.1 kHz Non-Temporal Low High 29 42 32 43 54 54 76 84 82 89 82 89 8 3.1 kHz Non-Temporal Low 28 29 54 77 83 83 9* Coded High 43 47 54 85 90 90 10* 3.1 kHz Coded High 42 43 54 84 the NAC. If the NAC voltage is held constant, the horn output remains constantly on.

89 89 * Settings 9 and 10 are not available on 2-wire horn strobes. Temporal coding must be provided by 2 I56-6516-002 10/02/2018

WIRING AND MOUNTING All wiring must be installed in compliance with the National Electric Code and the local codes as well as the authority having jurisdiction. Wiring must not be of such length or wire size which would cause the notification appli ance to operate outside of its published specifications. Improper connections can prevent the system from alerting occupants in the event of an emergency.

Wire sizes up to 12 AWG (2.5 mm²) may be used with the mounting plate. The mounting plate ships with the terminals set for 12 AWG wiring. Make wire connections by stripping about 3 / 8 "of insulation from the end of the wire. Then slide the bare end of the wire under the appropriate clamping plate and tighten the clamping plate screw. We provide a wire strip guide. See Figure 6 for wiring terminals and strip guide reference.


Factory finish should not be altered: Do not paint!


Do not over tighten mounting plate screws; this may cause mounting plate to flex.

FIGURE 6. WIRING TERMINALS, SHORTING SPRING, AND STRIP GUIDE Shorting Spring MOUNTING AND REMOVING APPLIANCE 1. Attach mounting plate to junction box with the two screws provided. (See Figure 8.) 2. Connect field wiring according to terminal designations. (See Figures 6 and 7.) 3. If the product is not to be installed at this point, use the protective dust cover to prevent contamination of the wiring terminals on the mounting plate.

4. To attach product to mounting plate: a. Remove the protective dust cover.

b. Hook the tabs on the top of the product housing into the grooves on mount ing plate.

c. Pivot the product into position to engage the terminals on the mounting plate. Make sure that the tabs on the back of the product housing fully en gage with the mounting plate.

d. Hold product in place with one hand, and secure product by tightening the single mounting screw in the front of the product housing.

Ceiling Models only:

To remove product from the mounting plate, loosen the captive mounting screw and press the locking button. FIGURE 8. CEILING MOUNTING Strip Guide WIRING TERMINALS 1. Negative (-). Line in and out 2. Positive (+). Line in and out 3. Positive (+). Line in and out 4. Positive (+). Line in and out 5. Negative (-). Line in and out A0527-01 A0492-01 FIGURE 7. 4-WIRE CIRCUIT INPUT FROM FACP OR PRIOR STROBE + – + – OUTPUT TO NEXT STROBE OR EOL + – + – INPUT FROM FACP OR PRIOR HORN OUTPUT TO NEXT HORN OR EOL A0366-01 SYSTEM WIRING For 4-Wire installations, terminals 1, 2, and 3 connect to the strobe; terminals 4 and 5 connect to the horn. The horn and strobe circuits must be wired in dependently, and each circuit must be terminated with the appropriate EOL device. Removal of a notification device will result in an open circuit indica tion on the strobe loop.

NOTE: A shorting spring is provided between terminals 2 and 3 of the mount ing 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. Only available on indoor products (non K-series).

SHORTING SPRING FEATURE System Sensor notification appliances come with a shorting spring that is pro vided between terminals 2 and 3 of the mounting plate to enable system con tinuity checks after the system has been wired, but prior to installation of the final product. (See Figure 6.) This spring will automatically disengage when the product is installed, to enable supervision of the final system.

Locking button A0574-00 INSTALLING A SURFACE MOUNT BACK BOX 1. The ceiling surface mount back box may be secured directly to the wall or ceiling. Use of grounding bracket with ground screw is optional. (See Figure 9.) 2. The ceiling mount box can be used on ceiling horn strobes as well as ceil ing speaker and speaker strobe models. Use the STR cut-outs for ceiling horn strobe installation needs. (See Figure 11.) 3. Threaded knockout holes are provided for the sides of the box for ¾ inch and ½ inch conduit adapter. Knockout holes in the back of the box can be used for ¾ inch and ½ inch rear entry. 4. To remove the ¾ inch knockout, place the blade of a flat-head screwdriver along the outer edge and work your way around the knockout as you strike the screwdriver. (See Figure 12.)

NOTE: Use caution not to strike the knockout near the top edge of the surface mount back box.

5. V500 and V700 raceway knockouts are also provided. Use V500 for low profile applications and V700 for high profile applications. 6. To remove the knockout, turn pliers up. (See Figure 12.) 3 I56-6516-002 10/02/2018

FIGURE 9. SURFACE-MOUNTING ON CEILING SBBCRL/SBBCWL A0494-02 TAMPER SCREW For tamper resistance, the standard captive screw may be replaced with a Torx screw (sold separately). 1. To remove the captive screw, back out the screw and apply pressure to the back of the screw until it disengages from the housing. Replace with Torx screw. (See Figure 10.) FIGURE 10. TAMPER SCREW T15 Torx #6-32, 5/8" SCREW-TMPR-50 FIGURE 11. CUT-OUTS FOR SPEAKER (SPK) AND STROBE (STR) A0493-01 FIGURE 12. KNOCKOUT AND V500/V700 REMOVAL FOR SURFACE MOUNT BACK BOX Wire Mold Removal ½ inch or ¾ inch A0465-01 A0466-01 A0495-00



The horn and/or strobe will not work without power.

The horn may not be heard.

The horn/strobe gets its power from the fire/security panel monitoring the alarm system. If power is cut off for any rea son, the horn/strobe will not provide the desired audio or visual warning.

The loudness of the horn meets (or exceeds) current Underwriters Laboratories’ standards. However, the horn may not alert a sound sleeper or one who has recently used drugs or has been drinking alcoholic beverages. The horn may not be heard if it is placed on a different floor from the person in hazard or if placed too far away to be heard over the ambient noise such as traffic, air conditioners, machinery or music appliances that may prevent alert persons from hearing the alarm. The horn may not be heard by persons who are hearing impaired.


Strobes must be powered continuously for horn operation.

The signal strobe may not be seen.


The electronic visual warning signal uses an extremely reliable xenon flash tube. It flashes at least once every second. The strobe must not be installed in direct sunlight or areas of high light intensity (over 60 foot candles) where the visual flash might be disregarded or not seen. The strobe may not be seen by the visually

The signal strobe may cause seizures.

Individuals who have positive photoic response to visual stimuli with seizures, such as persons with epilepsy, should avoid prolonged exposure to environments in which strobe signals, including this strobe, are activated.

The signal strobe cannot operate from coded power supplies.

Coded power supplies produce interrupted power. The strobe must have an uninterrupted source of power in or der to operate correctly. System Sensor recommends that the horn and signal strobe always be used in combination so that the risks from any of the above limitations are minimized.

FCC STATEMENT System Sensor Strobes and Horn/Strobes have been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equip ment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

SUPPLEMENTAL INFORMATION For the latest Warranty information, please go to:

For Limitations of Fire Alarm Systems, please go to:

Speakers only:

For the latest Important Assembly Information, please go to:

Warranty Limitations of Fire Alarm Systems Speakers Only: Assembly Information System Sensor ® is a registered trademark of Honeywell International, Inc.

4 ©2018 System Sensor. 10/02/2018

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