 Definitions of a T3 Line
Written by: ShopForT1.net - Jan 8, 2009
Definition 1. - For many years, the fastest, and unfortunately, the most expensive way to connect to the outside world was through a ds1 or T1 connection. DS stands for Digital Signal or Digital Service. Now more commonly used and not near as expensive as it used to be, T3 or Data Service Level 3 is the connection of choice for many large companies and places that require a lot of bandwidth. DS3 technology is used for T3 lines and allows connections to the Internet to reach speeds of up to 44.736 megabits per second.
Definition 2. - T3 service is a digital, dedicated private-line service giving you high capacity for any combination of data, voice or video applications. The versatility of T3 makes it ideal for data-intensive users with large backbone applications or private networks requiring channelized transport. The point-to-point structure of T3 Service affords greater economies of scale by combining 28 DS1s or 672 separate 64 Kbps channels onto one communications path.
Definition 3. - Digital carrier with a speed of 45Mbs. Equivalent of 28 DS1s. Also called T3.
Definition 4. - Digital Signal Level 3. Framing specification used in transmitting digital signals at 44.736-Mbps on a T3 facility (United States) or at 34.368-Mbps on an E3 facility (Europe). | 
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