BENDIX SmarTire Operator's Manual page 9

A) Smart Antenna Wireless Receiver/ECU - The Wireless Receiver/ECU
forms the "brain" of the SmarTire™ platform. The receiver captures data
transmissions from tire sensors mounted on each wheel and sends this
information via a LIN Communication to a Bendix ABS module. This is
then analyzed against programmed user-defined settings and, if it
determines that a tire is under-inflated or running over temperature, an
alert is triggered.
B) Next GEN for Trailer ECU – The Trailer ECU captures data
transmissions from tire sensors mounted on each trailer wheel. This
data is then analyzed against programmed user-defined settings
contained in the ECU and, if it determines that a tire is under-inflated or
running over temperature, an alert is triggered and relayed to the
Receiver/ECU mounted on the tractor and if equipped with the SmarTire
Display or supported by the OEM dash, displays the alert in the cab of
the tractor.
C) SmarTire Display - Real-time tire pressure and temperature information
is available to the driver on demand via the SmarTire™ display. If the
system detects a tire problem, the display will alert the driver to the
condition so corrective action can be taken.
D) Tire Sensor - The tire sensor measures internal tire pressure and
temperature every 12 seconds and transmits data every three to five
minutes. If the system detects a pressure change of +/- 3 PSI or greater,
it breaks its regular schedule and transmits data immediately. Each tire
sensor is mounted in a break away cradle so that in the event of in-field
damage, the sensor remains unbroken and the cradle can be replaced
allowing the sensor to be reused.
E) Optional Trailer Lamp - When a tire problem occurs on a connected
trailer, the trailer lamp will indicate it to the driver. The lamp illuminates at
the first sign of trouble, as well as flashes to indicate the type of problem
found during power up.
BW8002 Page 9