Bendix Commercial Vehicle Systems VORAD VS-400 INSTALLATION NOTES - Manual (Page 7)

Product Safety Information
5
Definitions
Definitions
Forward Looking Radar (FLR)
The VORAD ® VS-400 Forward Looking Radar is a high frequency Doppler radar unit located on the front of the vehicle that transmits a
focused beam of radio frequency (RF) energy ahead of the vehicle . Energy reflected off objects is reflected back to the FLR and processed
by the unit’s internal headway controller to determine the speed, distance, direction, and lane position of all detected objects .
Collision Warning System (CWS)
The headway controller within the FLR processes information about all objects detected by the radar and sends alert messages to the
Driver Interface Unit (DIU) located in the dash via the vehicle’s J1939 data link . The DIU uses a combination of visual and audible alerts to
warn the driver of approaching hazards, or if following distances are too close for the current speed of the vehicle .
Bendix ™ SmartCruise ® (SC)
Bendix ™ SmartCruise is a feature of the VS-400’s Forward Looking Radar that controls the adaptive cruise control function of the engine .
When enabled, SmartCruise will override the engine’s set cruise speed in order to maintain a safe following distance when approaching
slower moving traffic . The vehicle’s engine must support and be enabled for adaptive cruise control in order for the VORAD
® SmartCruise ®
function to operate . Contact your vehicle OEM for information on the engine’s adaptive cruise control function .
Side Object Detection (SOD)
The VORAD Side Object Detection (SOD) is a stand-alone system that utilizes a close proximity pulse radar sensor to detect the presence
of a vehicle in a lane adjacent to the host vehicle . The SOD includes its own Driver Display Unit (DDU) to report object detection and
Diagnostic Trouble Code (DTC) information to the driver . The system may be installed separately, or as an option for the VS-400 system .
J1939 (CAN) Data Link
The J1939 data link is an SAE defined high-speed Controller Area Network (CAN) used to provide a means of communication between
compliant electronic devices on the vehicle . The data link consists of a twisted pair of wires running within the vehicle’s electrical harness
that connects all J1939 compatible devices together in a chain .
Each end of the data link chain is terminated with a 120-ohm resistor to reduce electrical noise, or interference . The two terminating
resistors also provide an easy means to test the integrity of the link by producing a combined 60-ohm link resistance that can be measured
at any connection point on the link with a digital ohmmeter . Contact the vehicle OEM for information on the J1939 data link wiring and
terminations .