Direct Internet Access System is a technology used to access internet through

DSL Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines. In telecommunications marketing, the term DSL is widely understood to mean asymmetric dig ...

developed jointly by

IIT Madras Indian Institute of Technology Madras (IIT Madras) is a public technical university located in Chennai, Tamil Nadu, India. As one of the Indian Institutes of Technology (IITs), it is recognized as an Institute of National Importance and has ...

and

Banyan Networks A banyan, also spelled "banian", is a fig that develops accessory trunks from adventitious prop roots, allowing the tree to spread outwards indefinitely. This distinguishes banyans from other trees with a strangler habit that begin life as a ...

. It offers a wired solution for high-speed symmetrical Internet access through existing

public switched telephone network The public switched telephone network (PSTN) provides infrastructure and services for public telecommunication. The PSTN is the aggregate of the world's circuit-switched telephone networks that are operated by national, regional, or local telep ...

lines and provides an " Always On" Internet Access that is permanently available at the customer's premises. It uses the existing cabling infrastructure by combining voice and data packets onto a single twisted-pair wire at the subscriber's premises. The speed of this type of internet access depends upon the distance of the customer's residence from the nearest office of the broadband company. For example: * A customer having a distance of 2.5 km from the office will have a speed of 2 Mbit/s * A customer having a distance of 5 km from the office may have a speed of 128 kbit/s

External links

Arun, C P; Smijesh, P S; Direct Internet Access System (DIAS), jointly developed by Banyan Networks and TeNeT Group, liT Madras, (Sree Narayana Gurukulam College of Engineering)ARUN C P 2005-06.pdf

'IIT Madras develops direct Internet access system' The Times of India, December 18, 1999 (TeNeT Group IIT-M Press)

Patent WO2001052460A2 - A direct internet access system - Google Patents
Digital subscriber line {{Internet-stub