[ Optical ground wire cable (OPGW), OPGW hardware, loose tube cable, downhole cable and components, sensing cable and components, subsea cable and components, microcore fiber optic cable, skywrap, premise cable; optical fiber connectivity; mechanical splices, cable assemblies (indoor, outdoor, bend insensitive, PM), optical components, fiber demarcation, outside plant cable assemblies, optical fiber and connector cleaning products; copper apparatus including coax demarcation, series network interface devices, terminal closures, premise electronics and filters, line modules for network interface devices; fusion splicers, fiber cleavers, engineering and optimization services, technical support and maintenance services for splicing products; specialty fiber including large core fiber, image fiber, fiber bundles, fiber scopes, capillary tubing, tapered fiber; OTDRs, OTDR test kits, fiber test kits, optical power meters, LED and laser light sources, optical loss test kits, visual fault identifiers, optical fiber identifiers, microscopes, videoscopes, talk sets and attenuators, network simulators; fiber to the subscriber electronics including satellite distribution technology, passive optical network, point-to-point electronics, bandwidth management products; certification test kits; tinned substation connectors, terminals, and supports; connectors and fittings for the rail transit and heavy rail industry; vibration analysis software for placement of dampers and spacers on transmission and distribution lines; ] tools for the purpose of compressing transmission fittings [ ; network underground limiting connectors; high voltage transmission compression fittings; aluminum substation connectors, terminals, and supports; bronze substation connectors, terminals, and supports ]

Telecommunication services, namely, providing fiber optic network services