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The FW963AR/FW963AW Horn Strobes, FW973AR/FW973AW, and W983AR/FW983AW Strobes are a family of addressable multi-candela visual and audible signal appliances with light sources generated from white LED, listed according to UL 1971, UL 1638, UL 464, ULC-S525 and ULC-S526 for indoor use. The LED light source offers superior performance, including low power consumption and long operating life. Each appliance has the intelligence to report its location (the device address) and status to FireWathcer series fire alarm control panels. Six levels of light output are selectable. Figure 1 shows relative light outputs in horizontal and vertical dispersion from strobes mounted on walls/ceilings.
The strobe appliances produce a flash rate of one flash per second over the Regulated Voltage Range. The temporal tone generated by the horn portion is designed as per ANSI and NFPA72 for standard emergency evacuation signaling requirement.
The appliance has the feature that can synchronize multiple horn and/or strobes based on loop.

---- UL Limit (percent)
---- appliance intensity (percent)
Figure 1. Horizontal and Vertical Light Outputs
The product must be used within its published specifications and properly installed, operated, and maintained, in accordance with these instructions. Users are solely responsible for determining whether a product is suitable for the user’s purposes or achieves the intended results. Read the instructions carefully before using this product. Failure to comply with any of the instructions, cautions, and warnings could result in improper application, installation and/or operation of these products in an emergency situation. This could result in property damage and serious personal injury or death.
Do not paint this device.
Any material extrapolated from this document or from Maple Armor’s instructions or other documents describing the product for use in promotional or advertising claims, or for any other use, including description of the product’s application, operation, installation, and testing is the sole responsibility of the user. Maple Armor will not assume any liability for such use. In no case will Maple Armor’s liability exceed the purchase price paid for a product.
Operating Voltage           16 to 33 VDC
RMS Operating Current @16 Vdc(mA) 170cd130cd100
Sound Level
Voltage16V dc24V dc33V dc
Directional CharacteristicsHorizontal
AngleOSPL (dBA)
0° (ref)0 (ref)
± 44°-3
± 54°-6
± 90°-10.5
AngleOSPL (dBA)
0° (ref)0 (ref)
± 52°-3
± 55°-6
± 90°-12
Effective Light (cd)170, 130, 100, 75, 45, 15
(See Figure 3 for candela selection)
Operating Temperature0° C to 49° C (32° F to 120° F)
Operating Humidity 0 to 93% RH
Horn PatternTemporal 3
Strobe Pattern1 flash per second
Wire Size 12 to 18 AWG
Location Indoor wall/ceiling
Compatible ModelFW106 / FW106C FACP

(1)To avoid electrocution that could result in personal injury or death, remove all sources of power and allow 10 minutes to discharge stored energy prior to installing or removing equipment. Install this device in accordance with all applicable codes and the Local Authorities Having Jurisdiction.
(2)Electrical supervision requires breaking the wire run at each terminal. Do not loop the signaling circuit field wires around the terminals.
(3)Check the manufacturer’s installation instructions for other equipment used in the system for any guidelines or restrictions on wiring and/or locating NACs and notification appliances. Some system communication circuits and/or audio circuits, for example, may require special precautions to assure electrical noise immunity (e.g., audio crosstalk).
(4)Check that the installed product will have sufficient clearance and wiring room prior to installing bases. Do not over tighten mounting screws as this can deform the base and may affect operation.
1.Mount the FW900/FW901 base onto a 4x4 electrical box, see Figure 2.
Figure 2. Base Installation
2.Set the strobe signal level to the desired setting. See Figure 3.

Figure 3. Candela Selector
3.Connect the wires. See Figure 4.
Figure 4. Wiring Diagram (SLC / NAC)
(Note: Polarity insensitive for SLC; Polarity sensitive for NAC)
4.Wire the SLC / NAC to the device. See Figure 5.
(a)CLASS A circuit                                                                        (b)CLASS B circuit
Figure 5 SLC / NAC wiring diagram
5.Combine the (horn) strobe with base – Align the (horn) strobe onto the base then and twist it in clockwise.
6.Test for proper operation. Initiate this unit from the connected FACP and observe for proper operation.
Scheduled inspection and operational test should be carried as per requirement set out by Local Authority Having Jurisdiction.
Return the device for reparation if it fails to alarm during testing. Do not disassemble the detector without permission.