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Optical Carrier Bandwidth, SONET/SDH/Optical Carrier Facts and Optical Carrier Providers

The two protocols below are standardized by the following:

Synchronous Digital Hierarchy or the acronym SDH is the standard defined by the ETSI or the European Telecommunications Standards Institute

Synchronous Optical Networking or SONET for short is the standard defined by T1.105 from American National Standards Institute and GR-253-CORE from Telcordia.

SONET (Synchronous Optical Networking)/SDH (Synchronous Digital Hierarchy) Data Rates

SONET/SDH Chart and Bandwidths
SONET Optical Carrier Level	SONET Frame Format	SDH level and Frame Format	Payload Bandwidth Kbps (kilo bits per second)	Line Rate Kbps (kilo bits per second)
OC-1	STS-1	STM-0	50,112	51,840
OC-3	STS-3	STM-1	150,336	155,520
OC-12	STS-12	STM-4	601,344	622,080
OC-24	STS-24	–	1,202,688	1,244,160
OC-48	STS-48	STM-16	2,405,376	2,488,320
OC-192	STS-192	STM-64	9,621,504	9,953,280
OC-768	STS-768	STM-256	38,486,016	39,813,120
OC-3072	STS-3072	STM-1024	153,944,064	159,252,240





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