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
标签: network point-to-multipoint architecture premises
上传时间: 2016-12-10
上传用户:王庆才
简易文本编辑器。在出现的界面中输入任意文本内容,利用DEL键、BACKSPACE键、HOME键、end键、上下左右光标键对文本进行全屏幕编辑,按f1键激活菜单file,下移光标,选择save,输入文件名。也可以选择FILE菜单的其他菜单项,他们的功能均可实现。按f10激活帮助,按ESC键退出帮助。
上传时间: 2014-01-16
上传用户: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
标签: configures the selects channel
上传时间: 2013-12-09
上传用户:
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
标签: configures the selects channel
上传时间: 2016-12-24
上传用户: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.
标签: configures the selects channel
上传时间: 2016-12-24
上传用户: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
标签: ABC_FDTD_Die Implements simulation Gaussian
上传时间: 2013-12-22
上传用户: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
标签: ABC_FDTD_Die Implements simulation Gaussian
上传时间: 2014-07-27
上传用户:LIKE
词法分析 1 试验目的 设计,编制并调试一个此法分析程序,加深对此法分原理的理解. 2 试验要求 1)待分析的简单语言的词法 * 关键字: begin if then while do end 所有关键字都是小写. 2)运算符和界符: : = + * - / < <= <> > >= = ( ) # 3)其他单词是标识符(ID)和整数型常数(NUM),通过一下正规式定义: ID=letter (letter|digit)* NUM=digit digit* 4)空格由空白,制表符和换行符组成,空格一般用来分隔ID,NUM,运算符,界符和关键字,此法分析阶段通常被忽略. 3 各种单词符号对应的种别码如表所示
上传时间: 2017-01-08
上传用户:dongqiangqiang
编了个简单的游戏,模仿经典游戏俄罗斯方块。左右方向键控制方块的水平位置,上方向键旋转方块,end键水平翻转之。有简单的积分功能,并能根据得分多少调整游戏难度,即方块下落速度。
标签:
上传时间: 2017-01-09
上传用户:yyq123456789
在书上所看到的源码,阅读器,读取*.txt,并能使用PageUp、PageDown、Home、end、Esc、F1和上下左右键以阅读完整文章。
标签: 源码
上传时间: 2017-02-26
上传用户:米卡