Which digital carrier transmits data at a speed of 1.544 Mbps?

The speed of 1.544 Mbps corresponds to a T1 line, which is a type of digital carrier used for telecommunications. T1 lines are standardized digital transmission links that package data, voice, and video into a signal capable of being transported over traditional copper telephone lines or fiber optics. A T1 line provides a reliable, dedicated connection that can be particularly valuable for businesses that require consistent bandwidth for their operations.

In practical terms, a T1 service consists of 24 individual channels, each capable of carrying 64 Kbps, which sums up to the 1.544 Mbps total speed. This makes it suitable for small to medium-sized businesses that need to support several simultaneous phone calls or data transfers without the risk of congestion.

Other options, such as T3 and DS3, support significantly higher speeds, around 45 Mbps, while Ethernet can vary widely in speed depending on the configuration, but typical basic Ethernet types, such as Fast Ethernet, exceed the T1 speed significantly. Hence, the distinction in capability and speed categorizes T1 specifically at the 1.544 Mbps level.