An electrical connector comprising a body having at least two channels to receive a conducting electrical cable, a conducting inner compression locking sleeve positioned in each channel, preferably slotted to allow it to close about and grasp the cable, in electrical contact with an outer compression locking sleeve positioned slidably along each of said inner compression locking sleeve. The device includes a three position locking system. This can be combined by use of a touch screen monitor. The voltage amplifying unit amplifies and outputs the input voltage by rectifying and smoothing the input voltage a plurality of times. The compounds of the formula II are new and useful as stabilizers for protecting organic materials, in particular synthetic polymers, reprographic materials or coating materials against oxidative, thermal or light-induced degradation. The destination address of each OPN is used to address a lookup table in each switch control circuit to determine if the destination node is local.