Complete Protocol dictionary, glossary and reference

STM-4: Synchronous Transmission Module level 4

Synchronous Transmission Module level 4 (STM-4) is one of the transmission mode of the SDH ITU-T fiber optic network transmission standard. It has a bit rate of 622.08 Mbit/s and is the SDH equivalent of an OC-12 (SONET).

Standard Organization

ITU-T

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