Top 8 Internet Connectivity Definitions

A large company may need something more than a T1 line.

The following list shows some of the common line designations and definitions:

DS0 - 64 kilobits per second

ISDN - Two DS0 lines plus signaling (16 kilobytes per second), or 128 kilobits per second

T1 - 1.544 megabits per second (24 DS0 lines)

T3 - 43.232 megabits per second (28 T1s)

OC3 - 155 megabits per second (84 T1s)

OC12 - 622 megabits per second (4 OC3s)

OC48 - 2.5 gigabits per seconds (4 OC12s)

OC192 - 9.6 gigabits per second (4 OC48s)

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