Abstract: Application Note 384 describes how to connect the Dallas Semiconductor 3.3V Line Interface Units (LIUs) and Single Chip Transceivers (SCTs) to a network interface that contains both BNC and RJ-48/Bantam type connectors. In telecommunications designs, BNC connectors use coaxial cable and RJ-48/Bantam connectors use twisted-pair cable. While the coaxial cable uses the center conductor to carry signal information and the outer shield is connected to ground, the twisted-pair cable uses both conductors to carry signal information. Any design that supports both interfaces usually needs jumpers or switches to choose between the two interfaces. Using a transformer with a dual secondary winding allows the design to support both interfaces without the use of switches and jumpers. One secondary winding is routed to the BNC connector and the other winding is routed to the RJ-48/Bantam connector. The end user then chooses the appropriate interface by simply connecting a cable to the appropriate connector and does not have to worry about jumper or switch settings. 你所查询的应用笔记提供Acrobat PDF格式： APPLICATION NOTE 384:T1/E1/J1 Dual Connector Interface (PDF, 120kB) 免费Acrobat PDF阅读软件可从以下网站获得： http://chinese-s.adobe.com/products/acrobat/readstep2.html 相关型号   APP 384: Aug 13, 2002 DS21348 3.3V、E1/T1/J1线路接口 完整的数据资料 (PDF, 792kB) 免费样品 DS21354 3.3V/5V、E1单芯片收发器(SCT) 完整的数据资料 (PDF, 960kB) 免费样品 DS2155 T1/E1/J1单芯片收发器 完整的数据资料 (PDF, 2.0MB) 免费样品 DS2156 T1/E1/J1单芯片收发器，TDM/UTOPIA II接口 完整的数据资料 (PDF, 1.5MB) 免费样品 DS21Q348 3.3V、E1/T1/J1线路接口 完整的数据资料 (PDF, 792kB) 自动更新 需要自动接收最新发布的应用笔记吗？请订阅EE-Mail™ (English only)。 我们期待您的反馈！ 喜欢？不喜欢？有待改善？或为我们提供建议？请与我们联系 — 我们将根据您的意见或建议改善我们的工作。 网页评价或提供建议   下载，PDF格式 (120kB)  AN384, AN 384, APP384, Appnote384, Appnote 384