公开(公告)号：EP1163788A4

公开(公告)日：2003-02-12

申请号：EP00918239

申请日：2000-03-22

申请人： MEDIAONE GROUP INC

发明人： MANCHESTER EARL E ,  MUSSELMAN MILES E

IPC分类号： H04B3/06 ,  H04L12/28 ,  H04M11/06 ,  H04N7/10 ,  H04N7/173

CPC分类号： H04L12/2801

摘要： An apparatus and a method for simultaneously transporting telephone signals and broadband signals on a single coaxial cable (204). The ring line and tip line of the telephone signals are dc coupled onto the inner (212) and outer (214) conductors of the coaxial cable, while the information wire and reference ground of the broadband signal are ac coupled onto the inner and outer conductors of the coaxial cable respectively. Low pass filters at each end of the coaxial cable pass the telephone signal in and out of telephone jacks while blocking the broadband signals. High pass filters at each end of the coaxial cable allow the broadband signals to pass in and out of coaxial connectors while blocking the telephone signals. The coaxial cable is isolated from earth ground to prevent shorting of the telephone electrical power to earth ground. A ground block may be added to connect the reference ground of the incoming broadband signal to earth ground. The ground block may include surge suppression to protect the information wire of the incoming broadband signal.

摘要翻译： 一种用于在单个同轴电缆上同时传送电话信号和宽带信号的装置和方法。 电话信号的环线和尖端线直流耦合到同轴电缆的内导体和外导体上，而宽带信号的信息线和参考接地分别耦合到同轴电缆的内导体和外导体上。 同轴电缆两端的低通滤波器将电话信号插入和拔出电话插孔，同时阻挡宽带信号。 同轴电缆两端的高通滤波器允许宽带信号进入和离开同轴连接器，同时阻挡电话信号。 同轴电缆与地面隔离，以防止电话电源短路到地面。 可以添加接地块以将输入宽带信号的参考地连接到大地。 接地块可以包括浪涌抑制以保护输入宽带信号的信息线。