Technical

Running head : Telecommunication

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Synchronous Transmission

Synchronous transmission of data does not use start and stop bit for sending data fragments where the sender and the receiver are clocked Blocks of several characters are transmitted as a unit in what is called a frame . The header and the trailer bits are inserted at the end of a block

Asynchronous Transmission

Asynchronous transmission of data uses both the start and the stop bits and supply 38 .4kbps speed as this is a character

by character transmission and each character has a start and stop bit and an extra bit known as parity bit which ensures , that no bit sent matches the start and the stop bit sequence

Analog Signal

An analog signal is a continuous signal in form of a wave and suffers less attenuation and can be multiplexed to increase its band width

The disadvantage of this signal is that it 's more proms to errors from noise and interference . Usually it 's slower than the digital signal

Digital Signal

Digital signal is a series of on and off electronic pulses , with time signals that is discrete . This type is signal is normally faster than analogue signal but suffer greater signal attenuation

XON and XOFF are used in data transmission as control characters using a particular code . The XOFF is normally used by receiving device to inform the transmitting devices to stop broadcasting

Simplex Transmission

Simplex transmission of data is where data travels in one...