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标题: E1的速率怎么计算出来滴呀?  [查看完整版帖子] [打印本页]

时间:  2007-3-19 14:10
作者: 玄墀     标题: E1的速率怎么计算出来滴呀?

<p>怎么算出来的呀???</p>
时间:  2007-3-19 14:48
作者: wsdsg9958

=9×270×8×8000
时间:  2007-3-19 15:01
作者: jlxing

<p><font face="宋体">1个时隙是8比特,用时125微秒,1条E1有32个时隙</font></p><p><font face="宋体">8/125us*32=2048000bit/s=2Mbit/s</font></p>
时间:  2007-3-19 15:28
作者: 漂在边缘

<p>学习</p>
时间:  2007-3-19 20:25
作者: sun0396

<p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: &quot;Times New Roman&quot;; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">2M</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">有帧的这种概念,16帧组成一复帧,每帧32时隙.</span></p><p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">每帧125微秒<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">,</span>每秒传送的帧数是<span lang="EN-US">8000</span>帧.</span></p><p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">一帧内有<span lang="EN-US">32</span>个时隙,每个时隙由<span lang="EN-US">8</span>个<span lang="EN-US">bit</span>,<span lang="EN-US">1</span>秒传送的帧数是<span lang="EN-US">8000</span>帧.</span></p><p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;"><span lang="EN-US">2M</span>内的每个时隙的速率算法如下:<span lang="EN-US">8*8000=64kbit/s</span>,这就是<span lang="EN-US">64K</span>时隙的由来。</span></p><p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;">因此:总的速率就是<span lang="EN-US">32*8*8000=2048kbit/s</span>。</span></p>
时间:  2007-3-22 16:28
作者: 朗措

<p>x x !</p>
时间:  2007-3-22 17:19
作者: sjy2005

<div class="msgheader">QUOTE:</div><div class="msgborder"><b>以下是引用<i>wsdsg9958</i>在2007-3-19 14:48:00的发言:</b><br/>=9×270×8×8000</div><p></p><p>这个是155的计算方法,E1是32时隙*8bit*8000桢</p>
时间:  2007-3-22 17:20
作者: sjy2005

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时间:  2007-3-22 17:20
作者: sjy2005

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时间:  2007-3-26 09:23
作者: ltyy


时间:  2007-3-26 13:15
作者: yeeyn

呵呵,在ISDN上的E1是有32个DS0,一个DS0为64kbps,32x64=2048
时间:  2007-3-27 11:21
作者: mlxsj2006

<div class="msgheader">QUOTE:</div><div class="msgborder"><b>以下是引用<i>wsdsg9958</i>在2007-3-19 14:48:00的发言:</b><br/>=9×270×8×8000</div><p>这是155M?</p>
时间:  2007-3-28 10:14
作者: tongxinbozai

<p>hao a&nbsp; </p><p></p>
时间:  2007-4-17 14:36
作者: cchj3289

8000*8*32=2048
时间:  2007-4-18 11:26
作者: fluster

2楼的回答是传输模式的,3楼的是无线模式的都正确哈哈




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