Multiplexing

Question 1

Digital data is transmitted in what form?

Answer 1

Serial Form

Question 2

What is TIME SHARING?

Answer 2

Transmitted signals share wires at short time intervals

Question 3

What does a MUX do, and what is another name for it?

Answer 3

A multiplexer turns Parallel to Serial, also known as an Encoder

Question 4

What device turns Serial to Parallel, give 2 names

Answer 4

Demux and Decoder

Question 5

What does the CLOCK PULSE/CCU do?

Answer 5

Synchronizes the Mux and Demux

Question 6

The DATA TRANSFER BUS is a ________ connection

Answer 6

Two wire

Question 7

Name one places Muxs/Demuxs are used on an aircraft

Answer 7

Passenger Entertainment control

Question 8

What does the SELECT input do and what is another name for it?

Answer 8

Chooses which input goes to the output, also known as ADDRESS input

Question 9

How many data inputs for every select input?

Answer 9

2^x

Question 10

What is the purpose of a Truth Table?

Answer 10

Shows all possible combos of inputs and outputs

Question 11

What is the one advantage of transmitting in parallel?

Answer 11

Faster

Question 12

Under a seat there are 4 terminations, why is one of those terminations capped?

Answer 12

Resistance Impedance Matching

Question 13

What is the purpose of the Sub Mux?

Answer 13

Also known as the zone mux, there to make sure the whole aircraft does not lose entertainment only a portion

Question 14

What connects to the Mux and why?

Answer 14

Analog-Digital converter

Question 15

This component can be used to coordinate the transmission and reception of data

Answer 15

Central Control Unit