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Audible beaconing device speaker side angle

Audible Beacon Device


The Audible Beacon Device provides a loud locator tone for the crossing pedestrian from an auxiliary speaker on or near the pedestrian signal head at the far end of the crosswalk during the pedestrian change interval. The beacon is aimed toward the end of the first third of the crosswalk enabling locator tones to be heard from all sections of the crosswalk. Pedestrians can activate the Audible Beacon Device by placing a call with the extended press feature (holding the button down for one second or longer) at an accessible Pedestrian Signal. The device is located at the end of the crosswalk (destination point), and is mounted at 7-10 feet high per the MUTCD NPA, where it can broadcast tones, up to 100 dBA to the final two-thirds of the crosswalk, during the pedestrian change interval.


The Audible Beacon Device comprises a speaker mounted on the pedestrian signal head or a pan-tilt bracket fixed to a pole, allowing you to position it at your preferred height of 7-10 feet on the side of the intersection that serves as the destination for crosswalk users. This is especially crucial for aiding visually impaired individuals when crossing intersections, as the speaker can emit significantly louder volumes than traditional APS systems, thereby expanding safety throughout the final two-thirds of the intersection.

During the pedestrian clearance interval, typically near the end of the first line of the crossing, users hear an audible destination beacon tone emanating from a speaker positioned at the destination end of the crosswalk. This distinctive and percussive tone enables pedestrians with visual disabilities to navigate toward the destination beacon, adjusting their course to remain within the crosswalk until they reach the final endpoint at the conclusion of the crosswalk.


signal power interface(SPI) component

Signal Power Interface (SPI)



The Signal Power Interface (SPI) plays a crucial role in ensuring the reliable power and operation of PedSafety’s Guardian® product line, WiAAPS® product line, TLPI®, and Audible Beacon Device. It accomplishes this by efficiently converting the standard 120V power source within the pedestrian signal head into a safe and manageable 12V supply. The SPI’s primary function is to retrieve and transmit the walk and don’t walk information to the connected product, thereby contributing to enhanced pedestrian safety.



The Input Connections of our SPI (Signal Pedestrian Interface) present a robust and secure solution for pedestrian signal head wiring. These connections include 48 VDC or 89-134 VAC (depending on your SPI) fused and surge-protected inputs for Walk, Don’t Walk, and AC Neutral, ensuring reliable operation even in challenging conditions. On the Output side, the SPI offers a straightforward connection to a Guardian station terminal block with four wires, including Power (+12VDC), – GND, S2 Walk, and S1 Don’t Walk. Each SPI unit efficiently operates one push-button station, featuring redundant hardware and firmware safety interlocks for ultimate operational safety.

Moreover, the SPI is designed for easy installation inside various types of pedestrian signal heads, providing a hassle-free setup. It boasts extensive transient protection and is encapsulated in UL94-V0 listed flame-retardant polyurethane, ensuring resilience against environmental elements. Notably, our SPI is compatible with a range of our products, including the Guardian®, Guardian Wave®, Guardian® Mini, WiAAPS®, WiAAPS® Wave, Audible Beacon Device, and TLPI®, making it a versatile and reliable choice for enhancing pedestrian safety in diverse environments.