OC-192
OC-192 (Optical Carrier 192) is a fiber optic network line with a SONET rate of 9953.28 megabits per second (i.e., 192 * 51.84 Mbit/s) or 48 times the basic SONET signal transmitting at 51.84 Mbit/s, hence the name OC-48. OC-192 is currently the fastest feasible connection across the optical connection possible. 10Gbps Ethernet is also designed to interoperate with OC-192.