Stands for “Transmission System Level 1.”

A T1 line is a telecommunications line that helps 24 voice channels when used for phone service, or a complete bandwidth of 1.544 Mbps when used as an Internet connection. T1 strains usually function over twisted pair copper wire, much like a phone wire, however may run over coax cable or fiber optic cable. T1 strains are also referred to as DS1 (Digital Signal Level 1) strains.

Telecoms first deployed T1 strains within the Nineteen Sixties for the digitized transmission of a number of phone strains over a single connection, often known as a trunk line, between phone switching facilities. Telecoms later supplied devoted T1 strains to companies, supplying as much as 24 telephone strains over a single connection. Eventually, T1 strains supplied these companies with fixed, dependable Internet entry. Customers that wanted more bandwidth may buy a bonded T1 line, providing twice the bandwidth of a single T1.

As different types of high-speed web turned obtainable, T1 strains declined in recognition. Some ISPs who supplied T1 strains for many years are discontinuing them as a part of a common retirement of copper wire networks.

NOTE: While 1.544 Mbps may not seem to be a quick Internet connection now, a T1 line was a high-speed connection in comparison with the sluggish dial-up speeds of the Eighties and Nineties. It was additionally a devoted, always-on connection that was not liable to dropping out when a telephone name got here in.

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