Definitions for "STM-1"
Keywords:  sdh, synchronous, mbps, gbps, atm
(Synchronous Transport Module level 1) (OC-3 or STS-3) CCITT specification for SONET at 155.52Mbps.
Synchronous Transport Module, level 1 (2,016 DS0s, 155.52 Mb data rate - equivalent to OC-3 used in U.S. and Japan)
Synchronous Transfer Mode at 155 Mbit/s