Definitions for "STM-1"
Related Terms:
Sts-1, Stm, Synchronous digital hierarchy, Sdh, Oc-n, Oc-1, Optical carrier, Oc3, Oc-24, Oc-3, Oc-48, Oc-192, Oc-12, Sonet, Oc12, Burst mode, Synchronous optical network, Pdh, Fiber channel, Bursty, Asynchronous mode, Synchronous communications, Ds3 , Isochronous, Synchronous transmission, Inverse multiplexing, Serial transmission, Time division multiplexing, Aggregate bandwidth, Fibre channel, Inverse multiplexer, Parallel transmission, Asynchronous transfer mode, Time-division multiplexing, T-3, Atm - asynchronous transfer mode, Hscsd, Wideband, Hst, Ds-3, T-1, Ds1, Bandwidth-on-demand, Timeslot, Preamble, Broadband isdn, Ds-1, Asynchronous communications, Spe, Modem speed
(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
SDH standard for transmission over OC-3 optical fiber at 155.52 Mbps.
Building block for Synchronous Digital Hierarchy, with a bandwidth of 155.52 Mbps, and a format identical to STS-1 and the optical OC-1.
Synchronous Transport Module level 1. Refers to a 155 Mbps circuit capacity in SDH. There are higher speed circuits in SDH, i.e. STM-4 (622 Mbps), STM-16 (2.5 Gbps), and STM-64 (10 Gbps). Also see SDH.
Synchronous Transport Module-1 The ITU-T defines for SDH the physical interface for the digital transmission in ATM to a rate of 155,52 Mbps.
Synchronous Transport Module level 1. One of a number of SDH formats that specifies the frame structure for the 155.52-Mbps lines used to carry ATM cells. See also SDH.
The largest standard circuit unit of capacity, which consists of 155,500 Kbps (equal to 155 Mbps). Thus, each Gbps contains enough capacity for 6.4 STM-1 circuits. While capacity is sold to the largest telecommunications companies in minimum investment units equal to one STM-1 unit, most telecommunications companies buy smaller units at a price higher than the equivalent STM-1 price.