Complete Protocol dictionary, glossary and reference

STM: Synchronous Transmission Module

Synchronous Transmission Module (STM), also known as Synchronous Transfer Mode, is the basic rate of transmission of the SDH ITU-T fiber optic network transmission standard. It has a bit rate of 155.52 Mbit/s and is the SDH equivalent of an OC-3 (SONET).

Standard Organization

ITU-T

Related Document