In this note, we will discuss about What is Simplex System and Duplex System. The Duplex system is also classified into two categories Half Duplex System and Full Duplex System. Welcome to the Poly Notes Hub, One stop solution for Diploma Engineering Notes.
Author Name: Arun Paul.
About Simplex System and Duplex System
What is Simplex System?
In these systems, the information is communicated in only one direction. For example, the radio or TV broadcasting system can only transmit. They can’t receive. Another example of Simplex communications is the information transmitted by the telemetry system of a satellite to Earth. The telemetry system transmits information about the physical status of the satellite such as its position of temperature. The simplex system has been demonstrated in the figure.
What is Duplex System?
In this type of communication system the information is directed in both directions that is transmission and receiving can be done by this communication system. It is a bidirectional system. This system is classified into two categories, like-
- Half Duplex System
- Full Duplex System
What is Half Duplex System?
These systems are bidirectional, i.e. they can transmit as well as receive but not simultaneously. At a time, these systems can either transmit or receive, for example, a transceiver or walky-talky set. The direction of communication alternates. Radio communications such as those used in the military, fire fighting, citizen band (CB), and amateur radio are half-duplex systems.
What is Full Duplex System?
These are truly bidirectional systems as they allow the communication to take place in both directions simultaneously. This system can transmit as well as receive simultaneously, for example, the telephone systems. However, the bulk of electronic communications is two-way. The best example of a full duplex communication system is the telephone system.
Comparison
Half Duplex Vs Full Duplex System
| Parameter | Half Duplex | Full Duplex |
|---|---|---|
| Definition | Communication in two way but one at a time. | Communication in two way. |
| Examples | Walky Talky | Telephone |
Simplex Vs Duplex System
| Parameter | Simplex | Duplex |
|---|---|---|
| Definition | Communication in one way. | Communication in two way. |
| Examples | Radio and TV Broadcasting | Telephone |
Conclusion | Diploma Engineering Notes | Poly Notes Hub
In this note, we are discuss the Simplex System and Duplex System with Examples. Our Poly Notes Hub provides syllabus-wise notes for polytechnic or diploma engineering students of streams like Electrical Engineering, Electronics and Tele-Communication Engineering, Electrical and Electronics Engineering, Electronics & Instrumentation Engineering, and Computer Science & Technology. Our website is updating daily so please keep in touch with us for new and syllabus-wise notes and topic which helps you all to do any task related to diploma engineering.