| 摘要 |
<p>The invention relates to an improved module for the connection, protection and testing of telephone lines. It comprises two conductor holders for the drop wires (1) and pairs (2), whose connection to the respective terminals is provided by lowering them by actuating screws (10, 11) tightened to the module and whose electric connection is provided through a central module (3) of continuity, cut-off and protection. The cut-off function is achieved by the manual removal of the continuity module (3), with its linking bridges (5) between terminals. The protection function against over-voltages is provided through a gas discharge device (4) connected to the ground terminal (9) whose tapping is effected through the standardized omega profile (12) supporting the modules, and whose contact pressure secures the emerging extremity of the screw (11) of the conductor holder of the pairs. The removal of the cut-off module (3) provides for the access to the ends of the terminals of the drop wire (6) and pairs (7), thereby providing for the coupling, in series or in parallel, of means for the control of various technical line parameters and carrying out tests with conventional tools.</p> |
