Honeywell announced it has expanded the Silent Knight® line of low frequency notification solutions with more labour and cost-saving options to meet current NFPA 72 standards and International Building/Fire Code mandates. To satisfy specifiers’ demand for more secure fire and emergency voice communications, a unique amplifier has been developed by the Silent Knight team to provide backup power capabilities for the IntelliKnight 5820XL-EVS emergency voice system.

The new line of low frequency notification solutions includes SpectrAlert® Advance low frequency sounders and sounder bases. The sounders and sounder bases are designed by System Sensor to emit a 520 Hz tone, which studies have found more effective at waking building occupants, including those with mild to severe hearing loss. The expanded line includes speakers and speaker/strobes, as well as sounder bases compatible with Silent Knight smoke, heat, and fire/carbon monoxide (CO) detectors.

Eliminates the need for additional modules

These notification appliances provide code-required low frequency output, and eliminate the need for additional modules, junction boxes and wiring to save time and money while providing a clean aesthetic. Current versions of Silent Knight Detectors and traditional sounder bases used in existing installations can be easily upgraded by replacing the base with the new low frequency version. In applications where speakers are being used for low frequency notification, the IntelliKnight 5820XL-EVS has also been updated to emit the 520 Hz tone.

Back-up power is an essential component to meeting fire alarm voice evacuation and emergency communication systems survivability requirements. The new EVS-100W can deliver 50 watts of power to the 5820XL-EVS, plus 50 watts of back-up power. For more audio power, the Silent Knight EVS-100WBU can be used for 100 watts of power with 50 watts for back-up

“Survivability is an NFPA mandate for voice and ECS, and we’re seeing more specs calling for more power to back-up these notifications systems,” said David Pakech, vice president of sales for the, Silent Knight business. “These voice systems are getting bigger and wall space is at a premium, so the backup amp will soon be a commodity for most jobs.”

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Managing security during unprecedented times of home working
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