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标题: 综合布线系统及其特性 [打印本页]

作者: ztwlabc    时间: 2010-11-3 13:32
标题: 综合布线系统及其特性
 
<p align="left">综合布线系统介绍<br/>  <br/>  综合布线系统(PDS,Premises Distribution System)是针对计算机与通信的配线系统而设计的,这也就表明它可满足各种不同的计算机与通信的要求。 它包括:<br/>  <br/>  1) 模拟与数字的话音系统;<br/>   </p>
<p align="left">  2) 高速与低速的数据系统;<br/>  <br/>  3) 传真机、图形终端、绘图仪等需要传输的图象资料<br/>  <br/>  4) 电视会议与安全监视系统的视频信号;&nbsp; <span class="MsoHyperlinkFollowed"><span lang="EN-US" style="FONT-SIZE: 5pt; mso-bidi-font-size: 12.0pt"><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京综合布线</span></span></a><span style="mso-spacerun: yes">&nbsp; </span><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京系统集成</span></span></a><span style="mso-spacerun: yes">&nbsp; </span><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京安防监控</span></span></a><span style="mso-spacerun: yes">&nbsp;&nbsp; </span><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京门禁系统</span></span></a></span></span><br/>  <br/>  5) 传输28个VHF宽带视频信号;<br/>  <br/>  6) 综合布线对于建筑物的安全报警和空调控制系统的传感器信号。<br/>  <br/>  PDS可满足建筑物内部及建筑物之间的所有计算机、通信以及建筑物自动化综合布线系统设备的配线需求。由于PDS是一套综合式的系统,因此综合布线可以使用相同的电缆与配线端子板,以及相同的插头与模块化插孔以供话音与数据的传递,可不必顾虑各种设备的兼容性问题。<br/>  <br/>  PDS采用模块化设计,因而最易于配线上扩充和重新组合。采用星形拓扑结构,并同电信方面以及EIA/TIA-568所遵循的建筑物配线方式相同。因为在星形结构中,工作站是由中心节点向外增设,而每条线路都与其它线路无关。因此,在更改和重新布置设备时,只是影响到与此相关的那条路线,而对其它所有线路毫无影响。另外这种结构会使系统中的故障分析工作变得非常容易。一旦系统发生故障,便可迅速地找到故障点,并加以排除。<br/>  <br/>  PDS是由6个独立的子系统所组成,采用星形结构,可使任何一个子系统独立地进入PDS系统中。<br/>  <br/>  这6个子系统为:<br/>  <br/>  1) 工作区子系统(Work Location) 它是由终端设备连接到信息插座之间的设备组成,包括信息插座、插座盒(或面板)、连接软线、适配器等。<br/>  <br/>  2) 水平子系统(Horizontal) 它的功能是将干线子系统线路延伸到用户工作区。水平系统是布置在同一楼层上的,一端接在信息插座上,另一端接在层配间的跳线架上。水平子系统主要采用4对非屏蔽双绞线,它能支持大多数现代通信设备,在某些要求宽带传输时,可采用"光纤到桌面"的方案。当水平区面积相当大时,在这个区间内可能有一个或多个卫星接线间,水平线除了要端接到设备间之外,还要通过卫星接线间,把终端接到信息出口处。&nbsp; <span class="MsoHyperlinkFollowed"><span lang="EN-US" style="FONT-SIZE: 5pt; mso-bidi-font-size: 12.0pt"><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京综合布线</span></span></a><span style="mso-spacerun: yes">&nbsp; </span><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京系统集成</span></span></a><span style="mso-spacerun: yes">&nbsp; </span><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京安防监控</span></span></a><span style="mso-spacerun: yes">&nbsp;&nbsp; </span><a href="http://www.ztwl.cn/"><span lang="EN-US" style="COLOR: white; FONT-FAMILY: 宋体; TEXT-DECORATION: none; mso-ascii-font-family: 'Times New="New"  Roman'; mso-hansi-font-family: 'Times New="New"  Roman'; text-underline: none"><span lang="EN-US">南京门禁系统</span></span></a><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></span></span></p>
<p align="left">&nbsp;&nbsp;&nbsp;&nbsp; <span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">3</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">干线子系统(</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">Backbone</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">通常它是由主设备间(如计算机房、程控交换机房)至各层管理间。它采用大对数的电缆馈线或光缆,两端分别接在设备间和管理间的跳线架上。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">4</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">设备间子系统(</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">Equipment</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">它是由设备间的电缆、连续跳线架及相关支撑硬件、防雷电保护装置等构成。比较理想的设置是把计算机房、交换机房等设备间设计在同一楼层中,这样既便于管理、又节省投资。当然也可根据建筑物的具体情况设计多个设备间。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">5</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">管理子系统(</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">Administration</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">它是干线子系统和水平子系统的桥梁,同时又可为同层组网提供条件。其中包括双绞线跳线架、跳线(有快接式跳线和简易跳线之分)。在需要有光纤的布线系统中,还应有光纤跳线架和光纤跳线。当终端设备位置或局域网的结构变化时,只要改变跳线方式即可解决,而不需要重新布线。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">6</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">建筑群子系统(</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">Campus</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">它是将多个建筑物的数据通信信号连接一体的布线系统。它采用可架空安装或沿地下电缆管道(或直埋)敷设的铜缆和光缆,以及防止电缆的浪涌电压进入建筑的电气保护装置。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  综合布线系统的特性</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  综合布线系统与传统的布线系统相比,有许多优越性,其主要表现在以下几个方面:</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">1</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">兼容性</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">所谓兼容性是指其设备或程序可以用于多种系统中的特性。综合布线系统将话音信号、数据信号与监控设备的图象信号的配线经过统一的规划和设计,采用相同的传输介质、信息插座、交连设备、适配器等,把这些性质不同信号综合到一套标准的布线系统中。这样与传统布线系统相比,可节约大量的物质、时间和空间。在使用时,用户可不用定义某个工作区的信息插座的具体应用,只把某种终端设备接入这个信息插座,然后在管理间和设备间的交连设备上做相应的跳线操作,这个终端设备就被接入到自己的系统中。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">2</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">开放性</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">传统的布线方式,用户选定了某种设备,也就选定了与之相适应的布线方式和传输介质。如果更换另一种设备,那原来的布线系统就要全部更换。这样的话就增加了很多麻烦和投资。综合布线系统由于采用开放式的体系结构,符合多种国际上流行的标准,它几乎对所有著名的厂商都是开放的,如:</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">IBM</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">、</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">DEC</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">、</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">SUN</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">的计算机设备,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">AT&amp;T,NT,NEC</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">等交换机设备。并对几乎所有的通信协议也是开放的,如</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">EIA-232-D</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">RS-422</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">RS-423</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">ETHERNET</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">TOKENRING</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">FDDI</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">CDDE</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">ISDN</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">ATM</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">等。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">3</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">灵活性</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">综合布线系统中,由于所有信息系统皆采用相同的传输介质、物理星形拓扑结构,因此所有的信息通道都是通用的。每条信息通道可支持电话、传真、多用户终端。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">10Base-T</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">工作站及令牌环工作站(采用</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">5</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">类连接方案,可支持</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">100Base-T</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">及</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">ATM</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">等)所有设备的开通及更改均不需改变系统布线,只需增减相应的网络设备以及进行必要的跳线管理即可。另外,系统组网也可灵活多样,甚至在同一房间可有多用户终端,</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">10Base-T</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">工作站、令牌环工作站并存,为用户组织信息提供了必要条件。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">4</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">可靠性</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">综合布线系统采用高品质的材料和组合压接的方式构成一套高标准的信息通道。所有器件均通过</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">UL</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">、</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">CSA</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">及</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">ISO</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">认证,每条信息通道都要采用物理星形拓扑结构,点到点端接,任何一条线路故障均不影响其它线路的运行,同时为线路的运行维护及故障检修提供了极大的方便,从而保障了系统的可靠运行。各系统采用相同传输介质,因而可互为备用,提高了备用冗余。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><br/></span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">  </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">5</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">先进性</span><span style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"> </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">综合布线系统采用光纤与双绞线混布方式,极为合理地构成一套完整的布线系统。所有布线均采用世界上最新通信标准,信息通道均按</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">B-ISDN </span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">设计标准,按八芯双绞线配置,通过</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">5</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">类双绞线,数据最大速率可达</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">155Mbps</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">,对于特殊用户需求可把光纤铺到桌面(</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">Fiber--to the</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma"> </span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">Desk</span><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">)。干线光缆可设计为</span><?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:chmetcnv w:st="on" unitname="m" sourcevalue="500" hasspace="False" negative="False" numbertype="1" tcsc="0"><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma">500M</span></st1:chmetcnv><span style="FONT-SIZE: 9pt; COLOR: #222222; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: Tahoma">带宽,为将来的发展提供了足够的裕量。通过主干通道可同时传输多路实时多媒体信息,同时物理星形的布线方式为将来发展交换式的网络奠定了坚实基础。</span><span lang="EN-US" style="FONT-SIZE: 9pt; COLOR: #222222; FONT-FAMILY: Tahoma"><o:p></o:p></span></p>
作者: zlwode    时间: 2010-11-3 20:38
<p>学习</p>




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