Module B2-5a Data buses

Digital data voltages are more tolerant to variations than analogue voltages.

• True

• False

Theoretical digital highs (1s) are 5 volts, but what is the lowest voltage that could be considered a high?

• 1V

• 0.8V

• 2V

• 4V

Long distance communications that use less hardware and therefore have less weight.

• Serial Data Transfer

• Parallel Data Transfer

How much faster is 16 bit parallel data transfer compared to serial data transfer?

• 8x

• 10x

• 32x

• 16x

The type of data transfer most often seen internal to computer systems?

• serial data transfer

• parallel data transfer

Converting parallel data into serial data is accomplished using:

• multiplexer

• de-multiplexer

The bus controller is a function often provided by this component:

• Flight Control Computer

• Central Maintenance Computer

• Flight Management Computer

• Data Acquisition Unit

The shielding of the data-bus wires provides spike protection and eliminates EMF induced errors.

• True

• False

In a hypothetical data bus system, an Air Data Computer would be considered a:

• Bus Controller

• Coupler

• Remote Terminal

Which is NOT one of the three types of words defined in the 1553 data-bus standard?

• Command

• Label

• Status

• Data