PROTECTOR FOR CATV SUBSCRIBER

摘要

PURPOSE:To provide a protector for CATV subscriber which can be applicable to both unidirectional and bidirectional communications with same specifications while facilitating the switching and modification of communication line according to the subscription contract. CONSTITUTION:A unidirectional communication line Al and a bidirectional communication line A2 are installed between a line wire terminal 1 and an extension terminal 2. Switching means S1, S2 switch one of both lines to OFF line and the other to ON line and an arrester circuit B is connected between both lines and the line wire terminal.