9 Computers, computer software, fiber optics, fiber optic cable, fiber optic test and measuring units, namely, electronic devices for test and measurement of optical characteristics of fiber optic cable, fiber optic microscopes, optical time domain reflectometers, electronic fiber fault location units, namely, electronic devices for identifying and locating anomalies in fiber optic cables, optical test meters, optical spectrum analyzers, variable attenuators, chromatic dispersion measuring units, namely, electronic devices for measuring and characterizing chromatic and polarization mode dispersion effects, fiber identifiers, bare fiber adapters, handheld fiber inspection microscopes, software for analyzing, reporting and printing optical spectrum analyzer data and optical time domain reflectometer data, optical attenuators, multiplexers/demultiplexers, and channel equalizers, all of the aforesaid for installing, monitoring, optimizing, testing, analyzing, trouble-shooting, fault localization, supervision, measuring, and surveillance of telecommunication, fiber optic, mobile, backbone and wireless networks