This document discusses multiplexers and their types. It lists the group members working on the topic and provides an introduction to multiplexers, describing them as having multiple inputs and one output to combine and send signals. It then describes the main types of multiplexers: time division, dense wavelength division, frequency division, wavelength division, and statistical. Examples of multiplexer applications discussed include communication systems, computer memory, and signal transmission from satellites.

2. GROUP MEMBERS
• REHAN AHMED 14CS51
• ALI MEHDI SUBHAN 14CS04
• ARSLAN ASLAM 14CS05
• SYED SHER UL HASSAN SHAH 14CS67

3. INTRODUCTION
MULTIPLEXERS [MUX]

4. MULTIPLEXER
• MULTIPLEXERS ALSO TERMED (MUX) HAVE SEVERAL INPUTS AND ONE OUTPUT, IT ALLOWS MANY LOW
SPEED DIGITAL OR ANALOG SIGNALS TO BE INPUTTED AND COMBINED AND MODIFY THEM TO BE SENT AS
A SINGLE OUTPUT.
• IT IS ALSO CALLED ‘DATA SELECTORS’, AS HAVING NO. OF INPUTS, ANINPUT LINE CAN BE SELECTED TO
SEND THE OUTPUT. IT HAS MULTIPLE INPUT LINES, ONE CONTROL LINE AND ONE OUTPUT.
• IT ALSO ACTS AS THE AMPLIFIER AS IT AMPLIFIES THE MULTIPLE SIGNALS AND SENDS THE SIGNALS AT
HIGHER SPEED TO A SHARED DEVICE.

6. TYPES OF MULTIPLEXER

7. TYPES OF MULTIPLEXERS
THERE ARE MULTIPLE TYPES OF MULTIPLEXING TECHNIQUES WHICH ARE;
• 1. TIME DIVISION MULTIPLEXER
• 2. FREQUENCY DIVISION MULTIPLEXER
• 3. WAVELENGTH DIVISION MULTIPLEXER
• 4. DENSE WAVELENGTH DIVISION MULTIPLEXER
• 5. STATISTICAL MULTIPLEXER

8. TIME DIVISION MULTIPLEXER
• TIME DIVISION MULTIPLEXER IS A TYPE OF MULTIPLEXER IN WHICH THE INCOMING LOW-SPEED SIGNAL
ARE ALLOTTED EQUAL FIXED LENGTH TIME SLOTS AND THEN TRANSMITTEDOVER THE ONE CHANNEL
NETWORK IN SUCCESSIVE TIME SEGMENTS.

9. DENSE WAVELENGTH DIVISION
MULTIPLEXER
• DENSE WAVELENGTH DIVISION MULTIPLEXER IS A TYPE OF MULTIPLEXER WHICH JOINS TOGETHER
DIFFERENT SIGNAL COMING FROM DIFFERENT OPTICAL FIBERS,

10. FREQUENCY DIVISION MULTIPLEXER:
• FREQUENCY DIVISION MULTIPLEXER IS A TYPE OF MULTIPLEXER IN WHICHTHE TOTAL DATA OVER THE
COMMUNICATION NETWORK IS DIVIDED INTO THE SERIES OF FREQUENCY, THAT IS NON OVERLAPPING,
AND CARRIES THE SIGNAL OVER THE SHARED LINE.

11. WAVELENGTH DIVISION MULTIPLEXER:
• WAVELENGTH DIVISION MULTIPLEXER IS A TYPE OF MULTIPLEXER IN WHICH ANALOG SIGNALS ARE USED,
WHERE IT REGULATES THE ANALOG DATA SIGNALS USING LIGHT SPECTRUMAND TRANSMIT THE SIGNAL
OVER THE OPTICAL FIBER.

12. STATISTICAL MULTIPLEXER:
• STATISTICAL MULTIPLEXER IS A TYPE OF MULTIPLEXER WHICH A CHANNELIS DIVIDED INTO MULTIPLE
SUB CHANNELS, THIS ALLOWS TO INSTANTANEOUSLY FULFILL THE DEMANDSOF THE ONGOING TRAFFIC
OVER THE SHARED CONNECTION

13. APPLICATIONS OF MULTIPLEXER

14. COMMUNICATION SYSTEM:
• MULTIPLEXERS ARE USED IN COMMUNICATION SYSTEM WHERE IT IS USED TO INCREASE THE EFFICIENCY
OF COMMUNICATION. IT SIMPLY GETS THE INPUT IN THE FORM OF AUDIO OR VIDEO AND ENHANCES THESE
SIGNALS TO SEND OVER A SINGLE TRANSMISSION.

15. COMPUTER MEMORY:
• MULTIPLEXERS ARE USED IN COMPUTER MEMORY TO INCREASE THE POTENTIAL OF MEMORY AND TO
DECREASE THE NUMBER OF CONNECTIONS BETWEEN MEMORIES.

16. TRANSMISSION FROM SATELLITE:
• MULTIPLEXERS ARE USED TO TRANSMIT THE SIGNALS FROM THE COMPUTEROF SPACECRAFT TO THE
GROUND.

17. CONCLUSION

18. THANK YOU!