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- STM-4 abstract "The STM-4 (Synchronous Transport Module) is a SDH ITU-T fiber optic network transmission standard. It has a bit rate of 622.080 Mbit/s.The STM-4 specification is designed to carry 7,680 8-bit "voice" frames every 125 micro-seconds for a total payload bit rate of 491.520 Mbit/s. The other levels defined by the SDH standard are STM-1, STM-16 and STM-64. Beyond this we have wavelength-division multiplexing (WDM) commonly used in submarine cabling.Although STM-4 is comparable to OC-12 the SDH frame structure allocates more space to overhead than that of SONET. Because of this, STM-4's payload bandwidth differs from that of OC-12.".
- STM-4 wikiPageID "22837387".
- STM-4 wikiPageRevisionID "597514113".
- STM-4 hasPhotoCollection STM-4.
- STM-4 subject Category:Synchronous_optical_networking.
- STM-4 comment "The STM-4 (Synchronous Transport Module) is a SDH ITU-T fiber optic network transmission standard. It has a bit rate of 622.080 Mbit/s.The STM-4 specification is designed to carry 7,680 8-bit "voice" frames every 125 micro-seconds for a total payload bit rate of 491.520 Mbit/s. The other levels defined by the SDH standard are STM-1, STM-16 and STM-64.".
- STM-4 label "STM-4".
- STM-4 sameAs m.063_tq7.
- STM-4 sameAs Q7394772.
- STM-4 sameAs Q7394772.
- STM-4 wasDerivedFrom STM-4?oldid=597514113.
- STM-4 isPrimaryTopicOf STM-4.