Telephone apparatus, namely, intercoms; Portable emergency intercoms; intercoms; transceivers; radio transceivers; telephone transmitters; telephone apparatus; telephone terminals; telecommunications apparatus in the nature of automatic switching apparatus for telecommunication; electronic communications instruments and components, namely, digital transmitters; wireless transmitters and receivers; data communications hardware, being computer hardware; communications software for electronically exchanging data, audio, video, images and graphics via computer, mobile, wireless and telecommunication networks; structured cabling systems comprised of telecommunications cables and hardware; measuring, signal and control apparatus and instruments, in particular signal generators and final electrical controlling devices for industrial networks, electronic communication devices for I/O-systems; Electronic communication systems comprised of computer hardware and recorded software for the transmission of data, enabling measuring, processing and safety capabilities of machinery; data communication system comprising transmitter and receiver hardware and downloadable and recorded software for use in connection with conveyors for collecting and measuring performance and providing control such as safety input for shutting down conveyors