© Safe Fleet | 2019 | All rights reserved | Part #: 700-1144 R3
PSA Installation Guide
p. 4
Introduction
Introduction
About this guide
This guide covers installation procedures for the Predictive Stop Arm
™
(PSA) system. PSA installation is for certified
personnel only. For more information, contact Technical Support (see the back of this guide for details).
About PSA
PSA is a radar-based safety system designed for school buses. Its primary function is to alert the driver and students
leaving the bus about the danger from oncoming traffic, to prevent a potential accident before it happens.
How does it work?
The PSA system uses 2 radar modules (one forward and one rear-facing) to monitor the distance and speed of approaching
traffic and detect vehicles that are unlikely to stop when the school bus stop arm is deployed. A display unit delivers
appropriate visual alerts to the driver, and two exterior horn speakers play sounds to alert pupils of potential danger.
What does the PSA system include?
The PSA system has the following primary components:
•
Safety Alert Module (SAM) providing system logic and configuration capabilities
• Radar system monitoring the area around the vehicle
•
Display unit for visual notification to the driver
•
Amplified speakers for audible alerts
• GPS receiver providing location data
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Installations that include both PSA and the Safe Fleet Right-hand Danger Zone (RHDZ) system share location data from a
single GPS receiver. For more information, see the "Appendix" on page 19. RHDZ documentation is available on the Safe
Fleet Community.
NOTE: Initial configuration
After installing components, you must set up the system to operate correctly.
For more information, see the
PSA User Guide
(part #700-1176).
