Optical Carriers
Optical carriers are designated as OC1 through OC192. The focus here will be on OC48. In the 1960 T-carrier, lines were introduced and these lines have been continuously advanced and upgraded as the need for data transfer has increased. These lines were originally designed as private connections and then expanded out, as Intranets became Internet.
For large businesses, T1 and T3 lines may not be able to handle the amount of transfer happening through multiple locations. As a result, optical carriers became the standard in large businesses with locations that are spread out because they are having the capacity to handle huge amounts of data transfer over distance.