出个中兴试题考考大家

fluster

<p class="MsoNormal" style="MARGIN: 6pt 0cm 0pt 18pt; TEXT-INDENT: -18pt; LINE-HEIGHT: 20pt; tab-stops: list 18.0pt; mso-outline-level: 1; mso-list: l5 level1 lfo13;"><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;"><p></p></span></p><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体;"><span style="mso-list: Ignore;">一、</span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">填空题（共<span lang="EN-US">60</span>空，每题<span lang="EN-US">0.5</span>分）。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">1、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">连接已正常工作的两网元的光纤全部断纤后，两网元上报的最高级别的告警是<span lang="EN-US">LOS<u><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></u></span>，该告警由<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>SPI<span style="mso-spacerun: yes;">&nbsp; </span></span>　</u>功能模块检测。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">2、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">在<span lang="EN-US">SDH</span>传送网中，任何类型的通过光纤直接相连的两个网元之间构成复用<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>段，接收设备可处理再生段<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span><span style="mso-spacerun: yes;">&nbsp;</span></span></u>开销<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">3、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><u><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;</span>B3</span></u><span style="COLOR: black; FONT-FAMILY: 宋体;">字节的作用是检测高阶通道误码；<span lang="EN-US">V5<u><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></u></span>字节的第<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>1</span>，<span lang="EN-US">2<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp; </span></span></u>比特的作用是检测底阶通道误码。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">4、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">在复用段某网元检出<span lang="EN-US">B2</span>性能后，通过<u><span lang="EN-US"> M1<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>字节向复用段远端传送<span lang="EN-US">MS-REI</span>性能告警。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">5、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">通过命令对某网元的一个光板的光方向进行软环回，环回的开口方向指向交叉板，该环回属于<u> 终端侧<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span></span></u>环回。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">6、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">在<span lang="EN-US">II</span>型机网元中，<span lang="EN-US">TU-12</span>指针丢失不仅可以从支路板上检测到，也可能从<u> 交叉<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span></span></u>板检测到。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">7、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span style="COLOR: black; FONT-FAMILY: 宋体;">在<span lang="EN-US">STM-1</span>的帧结构中，<span lang="EN-US">AU PTR</span>共有<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>9<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>个字节。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">8、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">V2</span><span style="COLOR: black; FONT-FAMILY: 宋体;">设备的电源板有两种类型，其中<span lang="EN-US">WB</span>的输入直流电压为<u><span lang="EN-US"> +24</span></u>伏。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 36.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">9、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp; </span></font></span></span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">V2</span><span style="COLOR: black; FONT-FAMILY: 宋体;">设备的机框共有<span lang="EN-US">15</span>个槽位，当<span lang="EN-US">6</span>、<span lang="EN-US">7</span>槽位插入<span lang="EN-US">OIB1D</span>板时（双路<span lang="EN-US">STM-1</span>接口板），第<span lang="EN-US">6</span>第<span lang="EN-US">7</span>这两块板的四个光方向的编号分别是<u><span lang="EN-US"> 3412<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 39pt; TEXT-INDENT: -18pt; tab-stops: list 39.0pt; mso-list: l9 level2 lfo1;"><span lang="EN-US" style="COLOR: black; mso-fareast-font-family: &quot;Times New Roman&quot;; mso-hansi-font-family: 宋体;"><span style="mso-list: Ignore;"><font face="Times New Roman">10、<span style="FONT: 7pt &quot;Times New Roman&quot;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></font></span></span><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">E100</span><span style="COLOR: black; FONT-FAMILY: 宋体;">网管软件系统主要分为三层，它们是<u><span lang="EN-US">GUI<span style="mso-spacerun: yes;">&nbsp; </span></span></u>、<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>MANAGE-DB</span></u>、和<u><span lang="EN-US"> AGENT<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><p></p></span></u></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">11</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在<span lang="EN-US">32 </span>波的<span lang="EN-US">DWDM</span>系统中，相邻两波的波长间隔是<u>
                                <span lang="EN-US">0</span>。<span lang="EN-US">8<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>纳米，<u>
                                <span lang="EN-US">100<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u><span lang="EN-US">GHz</span>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">12</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<span lang="EN-US">OSC</span>板的接收灵敏度是<span lang="EN-US">-48<u><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></u>dBm</span>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; LINE-HEIGHT: 17pt; mso-line-height-rule: exactly;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">13</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<span lang="EN-US">DWDM</span>设备类型有<u><span lang="EN-US">OTM </span></u>、<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>OADM<span style="mso-spacerun: yes;">&nbsp; </span></span></u>、<u><span lang="EN-US"> OLA<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">14</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、根据<span lang="EN-US">ITU-T</span>对<span lang="EN-US">SDH</span>时钟系统的相关建议，网元可以从外时钟源和光线路提取多路参考时钟参考信号。最多可提取<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>4<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>路外部时钟参考源。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">15</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、指针调整是<span lang="EN-US">SDH</span>的关键技术。在<span lang="EN-US">SDH</span>网络中，如果某些网元的频率偏移较大将导致指针的连续调整。在这种情况下，前次指针调整后必需间隔<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span>3<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp; </span></span></u>帧，才能进行第二次指针调整。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">16</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、对于管理单元指针<span lang="EN-US">AU-PTR</span>，其负调整机会是<u><span lang="EN-US"> H3<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>这三个字节。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">17</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、通过<span lang="EN-US">SDH</span>设备进行组网，常常会遇到不同厂家设备的互联互通问题。为了能在不同厂家设备之间进行高阶通道的串连监视，在高阶通道开销中安排了<u><span lang="EN-US"> N1<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>字节。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">18</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、根据<span lang="EN-US">ITU-T</span>对<span lang="EN-US">SDH</span>时钟系统的<span lang="EN-US">G.813</span>建议，<span lang="EN-US">SETS</span>（同步设备定时源）的输出频率偏差应不大于<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>4</span>。<span lang="EN-US">6PPM<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>。^{<span lang="EN-US"><p></p></span>}</span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">19</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、如果用<span lang="EN-US">V2</span>设备组成一个<span lang="EN-US">SDH</span>网络，在该网络中，如果进行正常的点对点公务联络，网络中一次只能有<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span>2<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>对人能够通话。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">20</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在网管系统的性能管理中，有<span lang="EN-US">15</span>分钟和<span lang="EN-US">24</span>小时性能管理。对于<span lang="EN-US">15</span>分钟性能管理，网管系统设置的默认高低门限是<u><span lang="EN-US"> 900<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>到<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>100<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">21</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<span lang="EN-US">II</span>型机的最大空分交叉能力为<u><span lang="EN-US">80X80<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>条<span lang="EN-US">VC-4</span>总线。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">22</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、对<span lang="EN-US">II</span>型机网元，所有支路板和光线路板的业务信息流都是通过背板连接到交叉板的。每条背板业务总线速率是<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span>77<span style="mso-spacerun: yes;">&nbsp;&nbsp; </span></span></u><span lang="EN-US">Mbit/s</span>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">23</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、用于<span lang="EN-US">2500E</span>设备的交叉板<span lang="EN-US">CSA</span>和用于<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="10" unitname="g"><span lang="EN-US">10G</span></chmetcnv>设备的交叉板<span lang="EN-US">CSB</span>、<span lang="EN-US">CSD</span>的空分交叉能力分别是<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>96X96<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>条<span lang="EN-US">VC-4</span>总线、<u><span lang="EN-US"> 256X256<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>条<span lang="EN-US">VC-4</span>总线和<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span>512X512<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>条<span lang="EN-US">VC-4</span>总线。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">24</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在二纤或四纤复用段保护环中，<span lang="EN-US"> ADM</span>网元个数最多只能是<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>16<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp; </span></span></u>个。 这是由<span lang="EN-US">K1<u><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp; </span></u></span>字<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span><u><span style="mso-spacerun: yes;">&nbsp;</span>K1<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></u></span>节决定的。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">25</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<span lang="EN-US">NCP</span>板对网元上的所有单板实施管理，所传递的管理信息是通过<u><span lang="EN-US"> S</span>口<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp; </span></span></u>通信接口向各单板发送的。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">26</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在<span lang="EN-US">E100</span>网管中进行业务时隙配置。在配置界面中，光板和支路板的收发业务形成树形结构分列在界面的左右两边。其中，左边光板为<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span></span>发送<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span></span></u>业务端，左边支路板为<u> 接入<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp; </span></span></u>业务端。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">27</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在进行各网元的光连接配置时，根据不同的网元，可以选择单向或双向光连接。对于<u><span lang="EN-US"> TM<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>网元，则只能选择单向光连接。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">28</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、对于<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="10" unitname="g"><span lang="EN-US">10G</span></chmetcnv>设备而言，当时用<span lang="EN-US">CSB</span>交叉板时，有两个板位不能插任何速率的业务接口板，这两个板位是<u><span lang="EN-US"> 12</span>，<span lang="EN-US">15<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>板位。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">29</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、有一种网络保护方式可以完成两个不同类型的<span lang="EN-US">SDH</span>网络间的业务保护，这种保护方式被称为<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>SNI<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">30</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、对于四纤复用段保护链来说，有<span lang="EN-US">1+1</span>、<span lang="EN-US">1</span>：<span lang="EN-US">1</span>、<span lang="EN-US">1</span>：Ｎ三种组网形式形式。其中Ｎ的最大值是<u>　<span lang="EN-US">14</span>　　</u>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">31</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、为了完成告警、性能信息的采集、过滤并上报ＮＣＰ，同时接收来自ＮＣＰ的控制命令。网元上的所有单板上均有一个负责与ＮＣＰ通信的<span lang="EN-US">MCU</span><u>　　　　</u>模块。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">32</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、从<span lang="EN-US">II</span>型机<span lang="EN-US">WCK</span>板上的时钟模块输出的时钟定时信号中有系统帧频。系统帧频的频率是<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span>8K<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u><span lang="EN-US">Hz</span>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">32</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在<span lang="EN-US">STM</span>—<span lang="EN-US">N</span>帧结构中，信息速率是按<span lang="EN-US">4</span>倍递增的。再生段和复用段开销字节中有四个字节也是按<span lang="EN-US">4</span>倍递增的，它们是<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>、<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>、<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>、<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">33</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<span lang="EN-US">V2</span>（<span lang="EN-US">600</span>）设备除了有<span lang="EN-US">4</span>个<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="155" unitname="m"><span lang="EN-US">155M</span></chmetcnv>光方向外，还有<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>2<span style="mso-spacerun: yes;">&nbsp;&nbsp; </span></span></u>个<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="622" unitname="m"><span lang="EN-US">622M</span></chmetcnv>光方向。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">34</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="10" unitname="g"><span lang="EN-US">10G</span></chmetcnv>设备在业界首创了复用段逻辑保护功能。它除了常用的共享保护和额外业务保护方式外，还有<u> 逻辑子网<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>保护方式。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">35</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<span lang="EN-US">SDH</span>光接口按光纤距离、光板速率和使用波长分别以不同的代码表示。<span lang="EN-US">L</span>—<span lang="EN-US">16.2</span>就是某种光接口代码，其中<span lang="EN-US">L</span>表示<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>C</span>长距离<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span></span></u>、<span lang="EN-US">16</span>表示<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>2</span>。<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="5" unitname="g"><span lang="EN-US">5G</span></chmetcnv><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span></span></u>、<span lang="EN-US">2</span>表示<u> 波长为<span lang="EN-US">1550</span></u><span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">36</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在低阶通道开销字节中，<span lang="EN-US">V5</span>字节的第<span lang="EN-US">1</span>和第<span lang="EN-US">2</span>比特通过偶校验运算检测<u> 低界<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>通道误码。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">37</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="10" unitname="g"><span lang="EN-US">10G</span></chmetcnv>设备最多有<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span>4<span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>个<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="10" unitname="g"><span lang="EN-US">10G</span></chmetcnv>的光方向。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">38</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在各类<span lang="EN-US">SDH</span>保护网络中，<chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="155" unitname="m"><span lang="EN-US">155M</span></chmetcnv>速率光板不能用于<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp; </span></span>复用<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>段保护。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 21pt;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">39</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在网管上，可以通过<u><span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp; </span></span>屏蔽告警<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>命令使正在上报的告警消失。<span lang="EN-US"><p></p></span></span></p><p class="MsoNormal" style="MARGIN: 0cm 0cm 0pt 42pt; TEXT-INDENT: -21pt; mso-char-indent-count: -2.0; mso-para-margin-left: 2.0gd;"><span lang="EN-US" style="COLOR: black; FONT-FAMILY: 宋体;">40</span><span style="COLOR: black; FONT-FAMILY: 宋体;">、在信号的复用映射过程中从<span lang="EN-US">C-12</span>到<span lang="EN-US">VC-4</span>由<u> 电支路<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>板完成；从<span lang="EN-US">VC-4</span>到<span lang="EN-US">STM-N</span>由<u> 光支路<span lang="EN-US"><span style="mso-spacerun: yes;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></u>板完成。<span lang="EN-US"><p></p></span></span></p>