Definitions for teachers by teachers
OC3
OC3 (optical carrier). Series of physical protocols (OC-1, OC-2, OC-3, and so forth), defined for SONET optical signal transmissions. OC signal levels put STS frames onto multimode fiber-optic line at a variety of speeds. The base rate is 51.84 Mbps (OC-1); each signal level thereafter operates at a speed divisible by that number (thus, OC-3 runs at 155.52 Mbps).by Terry Franklin
OC3
Short for Optical Carrier, used to specify
the speed of fiber optic networks conforming to the SONET standard.
A SONET is short for Synchronous Optical Network, a standard for connecting
fiber-optic transmission systems. With the implementation of SONET, communication
carriers throughout the world can interconnect their existing digital carrier
and fiber optic systems. The table shows the speeds for common OC levels.
OC = SpeedRelevance: I am unaware as to the relevance of the OC3 in this geographical area.
OC-1 = 51.85 Mbps
OC-3 = 155.52 Mbps
OC-12 = 622.08 Mbps
OC-24 = 1.244 Gbps
OC-48 = 2.488 Gbps
Sources: Webopedia.internet.com
www.currents.net/resources/dictionary/index.htm
by Dianne Fulton
NetHandbook Glossary | NetHandbook Home page
Last updated: 1 August 2000