<p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-line-height-rule: exactly;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">EPON+SDSL</span></b><b style="mso-bidi-font-weight: normal;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">应用介绍<span lang="EN-US">: <p></p></span></span></b></p><p></p><p></p><p></p><p></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18.05pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-line-height-rule: exactly; mso-char-indent-count: 2.0;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">EPON</span></b><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">相对成本低,维护简单,容易扩展,易于升级是一个非常显著的优势。<span lang="EN-US">EPON</span>结构在传输途中不需电源,没有电子部件,因此容易铺设,基本不用维护,长期运营成本和管理成本的节省很大;另外<span lang="EN-US">EPON</span>系统对局端资源占用很少,模块化程度高,系统初期投入低,扩展容易,<span lang="EN-US"><a href="http://www.chinabyte.com/key/3744/148744.html" target="_blank"><span lang="EN-US" style="COLOR: windowtext; TEXT-DECORATION: none; text-underline: none;"><span lang="EN-US">投资回报率</span></span></a></span>高;可以说<span lang="EN-US">EPON</span>系统是面向未来的技术,大多数<span lang="EN-US">EPON</span>系统都是一个多业务平台,对于向全<span lang="EN-US">IP</span>网络过渡是一个很好的选择。另外<span lang="EN-US">EPON</span>能够提供非常高的带宽,服务范围大并具有灵活的带宽分配。<span lang="EN-US"><br/> <p></p></span></span></p><p></p><p></p><p></p><p></p><p class="MsoNormal" align="left" style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 18.05pt; LINE-HEIGHT: 18pt; TEXT-ALIGN: left; mso-pagination: widow-orphan; mso-line-height-rule: exactly; mso-char-indent-count: 2.0;"><b style="mso-bidi-font-weight: normal;"><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">SDSL</span></b><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">(Super division-duplex Digital Subscriber Line)</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">技术是利用家庭的两芯电话线稳定地传输数据,在</span><b style="mso-bidi-font-weight: normal;"><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-font-kerning: 0pt;">≤</span></b><chmetcnv wst="on" tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="3" unitname="km"></chmetcnv><chmetcnv></chmetcnv><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">3Km</span><chmetcnv></chmetcnv><chmetcnv></chmetcnv><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-font-kerning: 0pt;">公里的距离内达到对称</span><span lang="EN-US" style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">100MbpS</span><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; mso-font-kerning: 0pt;">传输,</span><span class="style101"><span style="FONT-SIZE: 9pt; COLOR: windowtext; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt;">是为了解决以太网通过电话线传输的问题而推出的<span lang="EN-US">SDSL</span>设备。该设备可将一路语音和高速数据同时在一对电话双绞线上传输,对<span lang="EN-US">100Base-T</span>进行桥接。是宽带接入的最简洁解决方案,适用于企业、网吧、住宅等需求高速数据业务的用户。<span lang="EN-US"><br/> <p></p></span></span></span></p><p></p><p></p><p></p><p></p><span style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-size: 10.0pt; 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;">电信级<span lang="EN-US">EPON</span>产品不但符合最新的<span lang="EN-US">IEEE802.3efm</span>标准,而且能够很好兼容现有<span lang="EN-US">PSTN</span>网络和<span lang="EN-US">NGN</span>网络,可以实现在一根光纤上传送普通电话、宽带数据、模拟电视等业务,真正实现了光纤入户、三网合一。</span><br/>
[此贴子已经被作者于2007-1-12 15:15:33编辑过]
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