Bendix Commercial Vehicle Systems VORAD EVT-300 DRIVER INSTRUCTIONS - Manual (Page 10)

Component Description
Central Processing Unit
The Central Processing Unit (CPU) is the electronic control unit for the Bendix
™
VORAD ® EVT-300 ™ Collision Warning System. The CPU and Antenna Assembly are
programmable through a slot located in the opposite end from the cable connection
on the CPU (system parameters can be set with a Pro-Link
™ Diagnostic Tool or
ServiceRanger 2.8). The CPU compiles information from the Antenna Assembly,
Engine Control Unit, Speedometer, optional Side Sensor (see page 7), Brake, and
Turn Signal Circuits to produce audible and visual warnings.
The CPU can be located in a variety of places, depending upon the orientation of
the CPU inside the vehicle in which it is installed. Typical locations are on the vehicle
fi rewall, underneath the dashboard, or behind the driver’s seat.
Driver Display Unit
The Driver Display Unit contains controls and indicators related to system operation.
The Driver Display Unit controls system power-up, speaker volume, range for
vehicle warnings, and headway thresholds for the Bendix
™ SmartCruise ® system.
A slot is also provided at the front bottom edge of the Driver Display Unit to insert
the optional Driver Identifi cation Card (see page 15). Driver Display Unit indicator
lights illuminate to indicate system power, system failure, absence of the Driver
Identifi cation Card, SmartCruise system enabled, and multiple stages of warning
levels.
A light sensor in the face of the Driver Display Unit adjusts indicator brightness with
changes in ambient light. The Driver Display Unit also contains a small speaker that
provides audible alert tones. The alert tones are sounded when the vehicle is closing
on an object, or if an object is detected by the Side Sensor and the turn signal is
activated for a lane change. Additionally, the speaker provides informational tones
such as volume level, system failures, and the Driver Identifi cation Card related
tones.
The Driver Display Unit mounts on top of, or is recessed in, the dashboard in an area
that is easily visible and accessible to the driver.
In certain applications there may not be a Driver Display Unit installed. The
information that is normally displayed on the Driver Display Unit may be included on
an OEM-installed integrated dashboard display. Consult the OEM literature for each
of these integrated systems for proper operation.
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