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标题:
E1的速率怎么计算出来滴呀?
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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: "Times New Roman"; 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
<center><b>发帖随机事件</b></center><p><br/>你的电脑遇到可怕的病毒,损失相当大, <b>3%</b> 金钱的财产损失! </p><p>损失惨重呀</p>
时间:
2007-3-22 17:20
作者:
sjy2005
<table cellspacing="1" cellpadding="1" width="95%" align="center" border="0"><tbody><tr><td style="LINE-HEIGHT: 18px;"><center><b>发帖随机事件</b></center><br/>你的自行车锁好了,栓好了,放好了,还是又被偷了,损失 <b>20</b> 金钱! <div align="right">提供人:<a href="http://www.txrjy.com/dispuser.asp?name=lztdscdma" target="_blank"><b><font color="#000000">lztdscdma</font></b></a></div></td><td></td></tr></tbody></table>崩溃了
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 </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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