How many MB are in a OC3?

An OC-3 (Optical Carrier Level 3) line has a data rate of 155.52 Mbps (megabits per second). To convert this to megabytes, divide by 8 (since there are 8 bits in a byte), resulting in approximately 19.44 MBps (megabytes per second). Therefore, an OC-3 can transmit about 19.44 megabytes of data each second.