Telecommunications and data networking hardware, namely, devices for transporting and aggregating voice, data, and video communications across multiple network infrastructures and communications protocols; Downloadable and recorded firmware and downloadable and recorded applications software for transporting and switching optical channels and wavelengths carrying client signals in the field of optical networks; embedded and pre-installed firmware and applications software sold as a component of computer hardware for transporting and switching optical channels and wavelengths carrying client signals in the field of optical networks; optical networking products, namely, transponders and muxponders, amplifiers, optical switches, fixed and reconfigurable optical add/drop multiplexers, regenerators, dispersion compensation modules, WDM (wavelength division multiplexing) dynamic gain equalizers, and electro-optical integrated circuits employed in such equipment; Downloadable and recorded optical product operating systems software and downloadable and recorded software for configuring and managing optical products through in-band and out-of-band control interfaces and for reporting on product status; Embedded and pre-installed optical product operating systems software sold as a component of computer hardware; Embedded and preinstalled software for configuring and managing optical products through in-band and out-of-band control interfaces and for reporting on product status sold as a component of computer hardware; downloadable instruction manuals for all of the foregoing