AND NETWORK COMMUNICATIONS EXAM
QUESTIONS AND ANSWERS 100%
CORRECT!!
, A decreased number of wires are needed, thereby saving weight and cost, as well as
helping with installation at the factory and decreased complexity, making servicing
easier. Common sensor data can be shared with those modules that may need the
information, such as vehicle speed, outside air temperature, and engine coolant
temperature. - ANSWER Most modules are connected together in a network because of
the following advantages.
node - ANSWER Each module, also called a __________, must communicate to other
modules. For example, if the driver depresses the window-down switch, the power
window switch sends a window-down message to the body control module.
Differential.; twisted pair; Parallel.; serial data; multiplexing; network - ANSWER In the
differential form of module communication, a difference in voltage is applied to two
wires, which are twisted to help reduce electromagnetic interference (EMI). These
transfer wires are called a __________________. In the parallel type of module
communication, the send and receive signals are on different wires. The
_______________ is data transmitted over one wire by a series of rapidly changing
voltage signals pulsed from low to high or from high to low. The process of
_____________________ involves the sending of multiple signals of information at the
same time over a signal wire and then separating the signals at the receiving end. This
system of intercommunication of computers or processors is referred to as a
_______________.
Elimination of redundant sensors and dedicated wiring for these multiple sensors.
Reduction of the number of wires, connectors, and circuits.
Addition of more features and option content to new vehicles.
Weight reduction due to fewer components, wires, and connectors, thereby increasing
fuel economy.
Changeable features with software upgrades versus component replacement. -
ANSWER By connecting the computers together on a communications network, they
can easily share information back and forth. This multiplexing has the following
advantages.
Ring link networks. - ANSWER In a ring-type network, all modules are connected to
each other by a serial data line (in a line) until all are connected in a ring.