A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters are used to enable a single optical fiber to serve multiple premises, typically 32-128. A PON consists of an Optical Line Termination (OLT) at the service provider s central office and a number of Optical Network Units (ONUs) near end users. A PON configuration reduces the amount of fiber and central office equipment required compared with point to point architectures
標簽: network point-to-multipoint architecture premises
上傳時間: 2016-12-10
上傳用戶:王慶才
簡易文本編輯器。在出現的界面中輸入任意文本內容,利用DEL鍵、BACKSPACE鍵、HOME鍵、end鍵、上下左右光標鍵對文本進行全屏幕編輯,按f1鍵激活菜單file,下移光標,選擇save,輸入文件名。也可以選擇FILE菜單的其他菜單項,他們的功能均可實現。按f10激活幫助,按ESC鍵退出幫助。
上傳時間: 2014-01-16
上傳用戶:gonuiln
selects the mux channel and configures the MAX197 for second write pulse, written with ACQMOD = 0, termi- either unipolar or bipolar input range. A write pulse (WR nates acquisition and starts conversion on WR°Os risin + CS) can either start an acquisition interval or initiate a edge (Figure 6). However, if the second control byte combined acquisition plus conversion. The sampling contains ACQMOD = 1, an indefinite acquisition interval interval occurs at the end of the acquisition interval. is restarted. The ACQMOD bit in the input control byte offer
標簽: configures the selects channel
上傳時間: 2013-12-09
上傳用戶:
selects the mux channel and configures the MAX197 for second write pulse, written with ACQMOD = 0, termi- either unipolar or bipolar input range. A write pulse (WR nates acquisition and starts conversion on WR°Os risin + CS) can either start an acquisition interval or initiate a edge (Figure 6). However, if the second control byte combined acquisition plus conversion. The sampling contains ACQMOD = 1, an indefinite acquisition interval interval occurs at the end of the acquisition interval. is restarted. The ACQMOD bit in the input control byte offer
標簽: configures the selects channel
上傳時間: 2016-12-24
上傳用戶:朗朗乾坤
selects the mux channel and configures the MAX197 for second write pulse, written with ACQMOD = 0, termi- either unipolar or bipolar input range. A write pulse (WR nates acquisition and starts conversion on WR°Os risin is restarted. The ACQMOD bit in the input control byte offer+ CS) can either start an acquisition interval or initiate a edge (Figure 6). However, if the second control byte combined acquisition plus conversion. The sampling contains ACQMOD = 1, an indefinite acquisition interval interval occurs at the end of the acquisition interval.
標簽: configures the selects channel
上傳時間: 2016-12-24
上傳用戶:yzhl1988
ABC_FDTD_Die(T) Implements simulation of a Gaussian Pulse over T time steps. ABC are for free space. If boundaries are in the Dielectric medium then the ABC fail. Dielectric medium begin and end can be specified with the code
標簽: ABC_FDTD_Die Implements simulation Gaussian
上傳時間: 2013-12-22
上傳用戶:caiiicc
ABC_FDTD_Die(T) Implements simulation of a Gaussian Pulse over T time steps. ABC are for free space. If boundaries are in the Dielectric medium then the ABC fail. Dielectric medium begin and end can be specified with the code
標簽: ABC_FDTD_Die Implements simulation Gaussian
上傳時間: 2014-07-27
上傳用戶:LIKE
詞法分析 1 試驗目的 設計,編制并調試一個此法分析程序,加深對此法分原理的理解. 2 試驗要求 1)待分析的簡單語言的詞法 * 關鍵字: begin if then while do end 所有關鍵字都是小寫. 2)運算符和界符: : = + * - / < <= <> > >= = ( ) # 3)其他單詞是標識符(ID)和整數型常數(NUM),通過一下正規式定義: ID=letter (letter|digit)* NUM=digit digit* 4)空格由空白,制表符和換行符組成,空格一般用來分隔ID,NUM,運算符,界符和關鍵字,此法分析階段通常被忽略. 3 各種單詞符號對應的種別碼如表所示
上傳時間: 2017-01-08
上傳用戶:dongqiangqiang
編了個簡單的游戲,模仿經典游戲俄羅斯方塊。左右方向鍵控制方塊的水平位置,上方向鍵旋轉方塊,end鍵水平翻轉之。有簡單的積分功能,并能根據得分多少調整游戲難度,即方塊下落速度。
標簽:
上傳時間: 2017-01-09
上傳用戶:yyq123456789
在書上所看到的源碼,閱讀器,讀取*.txt,并能使用PageUp、PageDown、Home、end、Esc、F1和上下左右鍵以閱讀完整文章。
標簽: 源碼
上傳時間: 2017-02-26
上傳用戶:米卡