9 telecommunications equipment and electrical devices for the recording, transmission and reproduction of video, sound, images and data, namely, computer hardware for use in communications networks, multiplexers, switches, data controllers, data termination units, modems, channel banks, shelves, power supplies, connectors, control cards, interface cards, printed circuit boards, and computer software for use in the control, management and monitoring of communications networks; parts for all of the aforementioned items; and communications network systems comprising any combination of the aforementioned items