Telephone extension system utilizing power line carrier signals

摘要: A power line telephone extension system for carrying electrical signals between a subscriber's of conventional communication and the remote transmit-receiver device, (such as telephone), over AC electric wires available to subscriber which includes: master linking circuits processing wires; transmit-receive such telephone; directional coupler circuit electrically coupling device line. The is quite suitable use with presently available, well known, that plugs in by plug (modular or 4 prong) provided therewith, coupler. Thus, phone can then be used along at any location premises where there access wires.