STS-1

E720431

STS-1 is the basic Synchronous Transport Signal level in SONET, defining the fundamental digital transmission rate and framing structure used in optical networks.

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Statements (46)

Predicate Object
instanceOf SONET signal
Synchronous Transport Signal level
digital transmission format
baseLevelFor OC-n
STS-n
definedInStandard ANSI T1.105 NERFINISHED
ITU-T G.707 NERFINISHED
electricalEquivalent OC-1
hasBitRate 51.84 Mbit/s
hasClocking network-synchronous timing
hasFrameDuration 125 microseconds
hasFrameRate 8000 frames per second
hasFrameSize 810 bytes
hasFrameStructure 9 rows by 90 columns
hasLineOverhead SONET line overhead
hasLineRate 51.84 Mbit/s
hasMapping VT1.5
VT2
VT3
VT6
hasOverheadBitRate 1.728 Mbit/s
hasPathOverhead SONET path overhead
hasPayloadBitRate 50.112 Mbit/s
hasSectionOverhead SONET section overhead
hasSynchronousPayloadEnvelopeColumns 87 columns
hasTransportOverheadColumns 3 columns
layerIn SONET line layer
SONET path layer
SONET section layer
multiplexes DS1
DS3 (via concatenation)
E1 (via mapping)
partOf SONET NERFINISHED
supports operations, administration, and maintenance (OAM)
performance monitoring
protection switching
supportsConcatenation STS-1c
STS-3c
higher-order STS-nc signals
transports data traffic
video traffic
voice traffic
usedAs fundamental SONET building block
usedFor digital signal multiplexing
synchronous optical transport
usedIn optical networks

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

SONET frameStructure STS-1