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[Sonet/SDH] 交叉计算 [复制链接]

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注册:2008-2-23
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发表于 2008-3-30 11:03:00 |只看该作者 |倒序浏览
&nbsp;<p><font size="1"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">一个低阶通道信号要接入到</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">STM-N</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">接口时要经历</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">LPC</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">(</span><span lang="EN-US" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: arial; mso-font-kerning: 1.0pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体;">LPC:</span><span style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-font-kerning: 1.0pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa;">低阶通道连接功能块</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">)和</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">HPC</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">(</span><span lang="EN-US" style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: arial; mso-font-kerning: 1.0pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa; mso-fareast-font-family: 宋体;">HPC:</span><span style="FONT-SIZE: 14pt; COLOR: red; FONT-FAMILY: 宋体; mso-ascii-font-family: arial; mso-hansi-font-family: arial; mso-bidi-font-family: arial; mso-font-kerning: 1.0pt; mso-ansi-language: en-us; mso-fareast-language: zh-cn; mso-bidi-language: ar-sa;">高阶通道连接功能块</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">):在</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">LPC</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">需要</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">4</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">进</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">4</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">出(</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">2</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">进</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">2</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">出连接一个方向,单根线构不成通路),在</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">HPC</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">低阶方向需要</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">4</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">进</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">4</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">出,在</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">HPC</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">的高阶方向(这里指</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">STM-N</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">线路方向)分别需要</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">4</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">进</span><span lang="EN-US" style="FONT-SIZE: 16pt; FONT-FAMILY: 'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;mso-fareast-font-family:宋体;;">4</span><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">出。</span></font></p><p><font size="1"><span style="FONT-SIZE: 16pt; FONT-FAMILY: 宋体; mso-ascii-font-family: 'mso-hansi-font-family:'mso-bidi-font-family:'mso-font-kerning:1.0pt;mso-ansi-language:en-us;mso-fareast-language:zh-cn;mso-bidi-language:ar-sa;;">怎么理解啊?为什么是4进4出啊?</span></font></p>

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