Full formTechnology
PSNstands forPublic Switched Network
Full Form of PSN
What is PSN?
A Public Switched Network (PSN) is a telecommunications network that uses circuit-switching technology to establish dedicated communication paths between users for the duration of a call. In India, PSN forms the backbone of traditional landline telephone services operated by providers like BSNL and MTNL, enabling reliable voice communication across the country. It is also used in legacy data transmission systems, though it is increasingly being replaced by packet-switched networks like the internet. PSN is commonly referenced in telecom engineering curricula and by professionals working in network infrastructure. For competitive exams such as those for telecom officer posts or engineering entrance tests, understanding the distinction between circuit-switched and packet-switched networks is important. The term is often encountered in discussions about the evolution of India's telecommunication sector, from analog exchanges to modern digital networks.
PSN का फुल फॉर्म
सार्वजनिक स्विचित नेटवर्क
Example
The reliability of BSNL's landline service depends on the underlying Public Switched Network (PSN) infrastructure, which ensures uninterrupted voice calls even during peak hours.
PSN — frequently asked questions
What is the full form of PSN?
PSN stands for Public Switched Network, a telecommunications network that uses circuit switching to establish dedicated connections for voice or data transmission.
How is PSN used in India?
In India, PSN is primarily used by providers like BSNL and MTNL for landline telephone services and legacy data communication, though it is being phased out in favor of digital networks.
Is PSN relevant for competitive exams?
Yes, topics like circuit-switching vs. packet-switching (including PSN) are often tested in telecom engineering exams and some sections of UPSC or state PSC papers related to communication technology.