An Insight into Transmission of Data via Data Cables

According to the Wikipedia, data transmission which is also known as digital communication

is the physical transfer of data from a point to point or from a point to multipoint communication channel. There are scores of examples; foremost being optical fibres, copper wires, storage media and communication channels. The transmission of data takes place in the form of electromagnetic signal (which again can be in the form of infra red, electrical voltage, microwave or radio wave).

Transmission undeniably refers to data transfer which can be of local or remote nature. Transmission of data essentially depends on three basic factors. These are: -

-Accuracy the data being transmitted should be exact from the source to the destination and mutilation or alteration in between is not acceptable.

-Delivery- if the data is aptly transmitted to the proper destination system, then the message is conveyed perfectly

-Time responsiveness- in this age of advanced technologies, data transmission in real time VoIP paves the way to accuracy and late delivery of useful data render the same data ineffectual.

If we research a bit on data transmission, we will stumble upon the network components which are described below: -

Message it is the real data or information which needs to be communicated from a specific source to a particular destination. It can consist of text, picture, sound or an intermingling of any of these.

Sender- it is essentially the source system which can be a computer system, a telephone or a workstation.

Intermediate it is the transmission medium or the physical path wherein data is transmitted from the source to the destination.

Receiver- it is basically the destination device or system which may also be a workstation, telephone or a computer system.

Protocol this is defined as a set of rules and regulations which govern the transmission and essentially symbolizes connection establishment.

If we compare the different modes, they can also be categorized by the direction of flow of data. These are: - simplex, half duplex and full duplex. They can also be categorized as asynchronous transmission and synchronous transmission. The expression synchronous is utilized to depict an unremitting and steady timed transmission of data. With pace of life increasing at an alarming rate, data cables are being deemed as the most pertinent transmission solution. Not only are they cost effective but also highly efficient.

A data cable can also be categorized into coaxial cable and twisted pair cable. Coaxial cables essentially are flexible and very reasonably priced; they are used for basic installation purposes but can also be used over long distances. In contrast twisted pair cables are most suitable for local networks and may not be appropriate for long distance transmission of data. Yet another well-liked mode is optical fibres. They are very efficient (able to embrace large bandwidth), light weight and resistant to distractions such as noise. They are much protected and can be used over very long distances. The low attenuation factor in optical fibres eliminates the need of amplification on the route.

An Insight into Transmission of Data via Data Cables

By: Sanjay

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