UGC NET CSE | June 2010 | Part 2 | Question: 47

Question

A leased special high-speed connection from the local telephone carrier for business users that transmits at $1.544$ mbps is known as ________ carrier.

• A. $T_{1}$
• B. $T_{2}$
• C. $T_{3}$
• D. $T_{4}$

Answer 1

Ans: A

An Internet leased line is a premium internet connectivity product, normally delivered over fiber, which provides uncontended, symmetrical speeds with full duplex. It is also known as an ethernet leased line, dedicated line, data circuit or private line.

For example, a T1 can be leased and provides a maximum transmission speed of 1.544 Mbit/s.

T-Carrier Signal Levels

Name	Capacity (maximum data rate)	T1 multiples
T1	1.544 Mbps	1
T2	6.312 Mbps	4
T3	44.736 Mbps	28
T4	274.176 Mbps	168
T5	400.352 Mbps	250

ref: https://en.wikipedia.org/wiki/Leased_line