What is a T1 line and whats it used for ?
T1 Definition: T1 is a member of the T Carrier family. Originally called a T1.5, the “T” was used by AT&T to distinguish between a terrestrial network as opposed to satellite. T1 is a standard 1.544Mbps (Megabits or million bits per second) carrier system used to transport 24 “time division multiplexed” (TDM) 64 Kbps (Kilobits or thousand bits per second) channels (DS0’s) of voice or data services, using pulse code modulation, from one point to another. Often interchanged carelessly with the term “DS1” or “Digital Signal One”, there is an important technical difference. The “T Carrier” (T1) is the type of transmission system. The T Carrier can be any terrestrial network capable of carrying the 1.544 Mbps signal, including wire, which was the original medium, fiber and microwave radio. The “DS1” is the electrical signal that carries the information, and it conforms to DS1 “physical layer” electrical standards for voltage, pulse shape, etc.. This DS1 signal carries the information in var
