翻訳と辞書 Words near each other ・ Time-of-flight mass spectrometry ・ Time-of-flight ultrasonic determination of 3D elastic constants ・ Time-out (parenting) ・ Time-out (sport) ・ Time-Place learning ・ Time-resolved fluorescence energy transfer ・ Time-resolved mass spectrometry ・ Time-resolved photon emission ・ Time-resolved spectroscopy ・ Time-saving bias ・ Time-scale calculus ・ Time-Sensitive Networking ・ Time-series segmentation ・ Time-sharing ・ Time-sharing system evolution ・ Time-slot interchange ・ Time-to-digital converter ・ Time-tracking software ・ Time-trade-off ・ Time-triggered architecture ・ Time-Triggered Protocol ・ Time-use research ・ Time-use survey ・ Time-utility function ・ Time-variant system ・ Time-varied gain ・ Time-varying covariate ・ Time-varying mesh ・ Time-Varying Microscale ・ Time-varying network 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 Time-slot interchange ： ウィキペディア英語版 Time-slot interchange A time-slot interchange (TSI) switch is a network switch that stores data in RAM in one sequence, and reads it out in a different sequence. It uses RAM, a small routing memory and a counter. Like any switch, it has input and output ports. The RAM stores the packets or other data that arrive via its input terminal. == Mechanism == In a pure time-slot interchange switch, there is only one physical input, and one physical output. Each physical connection is an opportunity for a switching fabric to fail. The limited number of connections of this switch is therefore valuable in a large switching fabric, because it makes this type of switching very reliable. The disadvantage of this type of switch is that it introduces delay into the signals. When a packet (or byte, on telephone switches) comes to the input, the switch stores the data in RAM in one sequence, and reads it out in a different sequence. Switch designs vary, but typically, a repeating counter is incremented with an internal clock. It typically wraps-around to zero. The RAM location chosen for the incoming data is taken from a small memory indexed by the counter. It is usually a location for the desired output time-slot. The current value of the counter also selects the RAM data to forward in the current output time slot. Then the counter is incremented to the next value. The switch repeats the algorithm, eventually sending data from any input time-slot to any output time-slot. To minimize connections, and therefore improve reliability, the data to reprogram the switch is usually programmed via a single wire that threads through the entire group of integrated circuits in a printed circuit board. The software typically compares the data shifted-in with the data shifted-out, to verify that the ICs remain correctly connected. The switching data entered into the ICs is double-buffered. That is, a new switch set-up is shifted-in, and then a single pulse applies the new configuration instantly to all the connected ICs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Time-slot interchange」の詳細全文を読む 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.