Synchronous Optical Network (SONET)

SONET stands for Synchronous Optical Network. SONET is a communication protocol, developed by Bellcore – that is used to transmit a lage amount of data over relatively large distances using optical fibre. With SONET, multiple digital data streams are transfered at the same time over the optical fibre. Key Points:

• Developed by Bellcore
• Used in North America
• Standardized by American National Standards Institute (ANSI)
• Similar to Synchronous Digital Hierarchy (SDH) which is used in Europe and Japan.