DIGITAL SIGNAL CROSS-CONNECTION MODULE

摘要

PURPOSE: A digital signal cross-connection module is provided to improve the electric wave shield performance and cross-talk characteristic by using tin-plate copperplates and shield cables. CONSTITUTION: An output terminal system is installed on one side of a front part of a housing, and includes an output terminal(34), a preliminary output terminal(36), and an output monitor terminal(32) for monitoring signal output of the output terminal and the preliminary output terminal. An input terminal system is installed on the other side of a front part of the housing, and includes an input terminal(40), a preliminary input terminal(42), and an input monitor terminal(38) for monitoring signal input of the input terminal and the preliminary input terminal. A pair of BNC(Baby N Connector) type input and output terminals(66,68) are placed on one side of a rear part of the housing. A pair of BNC type preliminary input and output terminals(62,64) are placed on the other side of the rear part of the housing and are arranged in parallel with the pair of BNC type input and output terminals at a step height. A first shield cable(20) connects the output terminal with the BNC type output terminal. A second shield cable(22) connects the preliminary output terminal with the BNC type preliminary output terminal. A third shield cable(24) connects the input terminal with the BNC type input terminal. A fourth shield cable(26) connects the preliminary input terminal with the BNC type preliminary input terminal. A plurality of copperplates ground the shield cables to the housing to preventing cross-talk.