翻訳と辞書 Words near each other ・ symmetric lisp ・ symmetric multiprocessing ・ symmetric multiprocessor ・ symphony ・ sympl ・ syn ・ sync ・ synchronized multimedia integration language ・ synchronous ・ synchronous data link control ・ synchronous digital hierarchy ・ synchronous dram ・ synchronous dynamic random access memory ・ synchronous graphics ram ・ synchronous graphics random access memory ・ synchronous idle ・ synchronous key encryption ・ synchronous optical network ・ syncronous ・ synflood Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Synchronous Digital Hierarchy ： FOLDOC Synchronous Digital Hierarchy (SDH) An international digital telecommunications network hierarchy which standardises transmission around the bit rate of 51.84 megabits per second, which is also called STS-1. Multiples of this bit rate comprise higher bit rate streams. Thus STS-3 is 3 times STS-1, STS-12 is 12 times STS-1, and so on. STS-3 is the lowest bit rate expected to carry ATM traffic, and is also referred to as STM-1 (Synchronous Transport Module-Level 1). The SDH specifies how payload data is framed and transported synchronously across optical fibre transmission links without requiring all the links and nodes to have the same synchronized clock for data transmission and recovery (i.e. both the clock frequency and phase are allowed to have variations, or be plesiochronous). SDH offers several advantages over the current multiplexing technology, which is known as Plesiochronous Digital Hierarchy. Where PDH lacks built-in facilities for automa スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.