STM-1

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The STM-1 (Synchronous Transport Module) 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).

[edit] Frame Structure

<-------------------- 270 columns total size -------------------->

<- 9 col's -> <------------------ 261 columns ------------------> Regenerator Section Overhead (RSOH) AU Pointer Multiplexer Section Overhead (MSOH) Frame payload

< ------------- 125 microseconds total duration ------------- >

Retrieved from "http://en.wikipedia.org../../../s/t/m/STM-1_3fb9.html"

Category: SONET

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• This page was last modified 12:30, 15 March 2007 by Wikipedia user Kresadlo. Based on work by Wikipedia user(s) BertK, Mrand, Saxbryn, YurikBot, Shanes, Gunjanarya, Ben W Bell, RobyWayne, Motleyfool, FlaBot, Pearle, Strait, Bobblewik, Ahoerstemeier and Andypasto and Anonymous user(s) of Wikipedia.
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