Many to one/one to many Types of multiplexing Telephone system

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Presentation transcript:

Many to one/one to many Types of multiplexing Telephone system

Multiplexing vs. No Multiplexing

Frequency Division Multiplexing(FDM)

FDM, Time Domain

Multiplexing, Frequency Domain

Demultiplexing, Time Domain

Demultiplexing, Frequency Domain

Time Division Multiplexing (TDM)

Synchronous TDM

TDM, Multiplexing

TDM, Demultiplexing

Framing Bits

Asynchronous TDM

Multiplexing Application Telephone System

Analog Switched Service

Analog Leased Service

Switched/56 Service

DDS

Error Detection and Correction Types of Errors Detection Correction

Single-bit error

Multiple-bit error

Burst error

Redundancy Check

Vertical Redundancy Check (VRC)

Longitudinal Redundancy Check (LRC)

Cyclic Redundancy Check (CRC)

Binary Division

Polynomial

Checksum

Hamming Code

Hamming Code

Example of Hamming Code

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