content.htm
来自「ccna」· HTM 代码 · 共 82 行
HTM
82 行
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>Content</title>
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<td width="90%"><font face="Arial" size="3"><font color="#008080"><b><img border="0" src="../../images/arrow_down.gif" width="19" height="12"></b></font></font><font color="#008080" size="3" face="Arial"><b>Connecting
hardware termination</b></font> <font color="#CCCC00" size="3" face="Arial"><b>::</b></font></td>
<td width="10%">
<p align="right"><font face="Arial" size="3" color="#008080"><b>20/55</b></font></td>
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<img border="0" src="../../images/transdot.gif" width="1" height="15"></td>
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<td><img border="0" src="../../images/transdot.gif" width="45" height="1"></td>
<td><font face="Arial" size="2">As with all cabling media, considerations
that may degrade transmission performance of installed cabling systems
include cabling practices that relate to connector terminations, cable
management, the use of cross-connect jumpers or patch cords, and the
effects of multiple connections in close proximity.</font>
<p><font face="Arial" size="2"><b>Requirements</b></font></p>
<ul>
<li><font face="Arial" size="2">Installed transmission performance of
components that meet requirements of different performance categories
(i.e., cables, connectors, and patch cords that are not rated for the
same transmission capability) shall be classified by the least
performing component in the link. </font></li>
<li><font face="Arial" size="2">The connecting hardware manufacturer's
instructions for cable sheath strip-back shall be followed. </font></li>
<li><font face="Arial" size="2">When terminating category 5e and higher
cables, the cable pair twists shall be maintained to within 13 mm (0.5
in) from the point of termination. </font></li>
<li><font face="Arial" size="2">When terminating category 3 cables, the
cable pair twists shall be maintained to within 75 mm (3 in) from the
point of termination.</font></li>
</ul>
<p><font face="Arial" size="2"><b>Recommendations</b></font></p>
<ul>
<li><font face="Arial" size="2">To maintain the cable geometry, remove
the cable sheath only as much as necessary to terminate the cable
pairs on the connecting hardware. </font></li>
<li><font face="Arial" size="2">For best performance when terminating
cable on connecting hardware, the cable pair twists should be
maintained as close as possible to the point of termination.</font></li>
</ul>
<p><font face="Arial" size="2"> </font>
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<td width="90%"><img border="0" src="../../images/arrow_up.gif" width="19" height="12"><font color="#008080" size="3" face="Arial"><b>Connecting
hardware termination</b></font> <font face="Arial" size="3"><b><font color="#CCCC00">::</font></b></font></td>
<td width="10%">
<p align="right"><font face="Arial" size="3" color="#008080"><b>20/55</b></font></td>
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