Definition - What does T-Carrier mean?
Techopedia explains T-Carrier
The T-1 digital stream is made up of twenty-four 64-Kbps channels, which are further multiplexed. The four wires being used for the T-1 system originally made use of twisted pair wires, but now some variations make use of coaxial cables or even optical fiber.
T-carrier technology was already in use in the US by 1962, but it was not until 1983 that AT&T introduced it to the general public as a communications product, which was initially aimed at voice data but increasingly found use in general data transmission. Because of its good qualities, T-carrier technology is still being used today by Internet service providers (ISPs), specifically the T-1 and the T-3 lines.
Variations of the T-carrier system are as follows:
- T-1: 24 channels and 1.544 Mbps of bandwidth
- T-2: 96 channels and 6.312 Mbps of bandwidth
- T-3: 432 channels and 44.736 Mbps of bandwidth
- T-4: 4032 channels and 274.176 Mbps of bandwidth