delivering high data rates the second channel sv line from the transformer to the premise and third channel premise wiring have noise present from electrical appliances and reflections due to the u201c web u201d of wires these channels can support a lower bandwidth than the pv channel and they need a more intelligent with more overhead modulation schemes there are several companies with chip sets to achieve good communications for local area networks lans such as adaptive networks newton mass inari draper utah intellion ocala fla ds2 valencia spain and itran beer sheva israel these devices would work well for the sv and premise channels data signal and power are carried over the pv power line 14 as previously stated a power line bridge 46 plb allows the data signal to bypass the transformer 20 thus avoiding the grounding of the high frequency data signal more description of the plb follows in the fig4 description the data signal after manipulation is delivered to the end user 39 s premise the data signal enters premise via the sv wiring the end user may have a local area network lan or have individual digital appliances in one embodiment of the present invention the signal is carried through the premise 39 s wiring and is available to various digital appliances 29 30 including pc 39 s by a power line interface device 28 plid the plid 28 plugs into a standard electrical socket and allows the digital appliance to send and receive digital data an alternative embodiment as described later uses a communications interface located outside of the premise and the data signal is directly fed to the premise referring next to fig3 a block diagram of the ap in accordance with.