Synchronous Optical NETwork

(networking)(SONET) A broadband networking standard basedon point-to-point optical fibre networks. SONET willprovide a high-bandwidth "pipe" to support ATM-basedservices.

The SONET standard will establish a digital hierarchical network with a consistent worldwide transport scheme. SONEThas been designed to take advantage of fibre, in contrast tothe plain old telephone system which was designed for copperwires.

SONET carries circuit-switched data in frames at speeds inmultiples of 51.84 megabits per second (Mbps) up to 48 * 51.84Mbps = 2.488 gigabits per second. Since SONET uses multiplechannels to transmit data, each SONET frame can beconsidered to be a two-dimensional table of bytes that is 9rows high and 90 columns deep. For every OC-n level, SONETcan transmit n number of frames at a given time. Groups offrames are called superframes.

SONET is the American version of SDH.

[Wulf Losee; Corporate Computing 8.92; STACKS; LAN Magazine10.93].

单词	synchronous optical network
释义	Synchronous Optical NETwork Synchronous Optical NETwork (networking)(SONET) A broadband networking standard basedon point-to-point optical fibre networks. SONET willprovide a high-bandwidth "pipe" to support ATM-basedservices. The SONET standard will establish a digital hierarchical network with a consistent worldwide transport scheme. SONEThas been designed to take advantage of fibre, in contrast tothe plain old telephone system which was designed for copperwires. SONET carries circuit-switched data in frames at speeds inmultiples of 51.84 megabits per second (Mbps) up to 48 * 51.84Mbps = 2.488 gigabits per second. Since SONET uses multiplechannels to transmit data, each SONET frame can beconsidered to be a two-dimensional table of bytes that is 9rows high and 90 columns deep. For every OC-n level, SONETcan transmit n number of frames at a given time. Groups offrames are called superframes. SONET is the American version of SDH. [Wulf Losee; Corporate Computing 8.92; STACKS; LAN Magazine10.93]. See SONT See SONET
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