Definitions for "OC12"
Keywords:  sonet, mbps, megabits, optic, carrier
A high-speed telecommunications link supporting a speed of 622 megabits (Mb) per second. Equivalent bandwidth to four OC3s.
Optical Carrier Level 12 (OC12) - This is a fiber optic connection that can handle 622 Mbps, often used for the 622 Mbps ATM protocol.
Optical Carrier Signal Level 12 refers to SONET data transmission at 622.080Mbps.