Cable bunch coding device

Apparatus for preventing unauthorized manual connection of individual conductors of a multi-conductor cable with individual conductors communicating with an electrically operated device, said apparatus comprising:

• a cable bunch having a plurality of conductors of mutually different colors or color combinations, a first electrical connector carried on one end of the cable bunch, a second electrical connector connected to the electrically operated device to which the cable bunch is to be electrically connected, wherein the first and second electrical connectors each have a plurality of connector pins to which individual conductors are connected, and wherein the first and second electrical connectors when connected together transmit current or a signal from each of the conductors in the cable bunch to a predetermined connector pin in the second electrical connector, a locking device including a code unit interposed between the cable bunch and the electrically operated device to selectively break and connect a connection between at least one conductor incoming from the cable bunch to the code unit and a corresponding number of conductors outgoing from the code unit to the second electrical connector, so that when electrically connecting the conductors incoming to and outgoing from the code unit incoming conductors of different respective colors or color combinations are connected to outgoing conductors of other respective colors or color combinations, thereby to obtain a predetermined mixture of colors or color combinations of the incoming and outgoing conductors upstream and downstream of the code unit, and so that the incoming conductors with the first electrical connector are electrically connected to predetermined correct connector pins in the second electrical connector to permit transmission of current or signals from the incoming conductors to the electrically operated device, and wherein the code unit includes an electronic lock for effecting correct conductor connections between the incoming conductors to the code unit and the outgoing conductors from the code unit when the user causes the electronic lock to be in an opened condition.