In theory, you could rig up an unwieldy analogue to this with an Energy-O-Mat.
But I agree, Redstone power should be able to disable the conductivity of a cable block.
Then you could have something clever, like a machine that only receives power conditional to a coded array of levers.
I'm not sure if it would be possible with all of the cables though, IIRC redstone can only power opaque blocks.