RTEC

loop extenders for use in narrow band, wide band and broad band electronic products; voice frequency repeaters for use in narrow band, wide band and broad band electronic products; transmission and test equipment for use in voice, video and data transmission over copper, fiber optic and coaxial cable carrying and receiving equipment within communication networks, namely, voice, video and data communications carried over copper, fiber optic and coaxial cables; telecommunications central office and remote access computer terminals; channel multiplexers for use in voice, video and data transmission over copper, fiber optic and coaxial cables; computer optical network interface boards; analog and digital subscriber line interfaces boards; channel banks for use in voice, video and data transmission over copper, fiber optic and coaxial cable; electronic plug in cards for use in voice, video and data transmission over copper, fiber optic and coaxial cable; pair gain apparatus for use in voice, video and data transmission over copper, fiber optic and coaxial cable; host digital terminal and optical network units for use in operations support systems; telephone line testing systems, namely, line test devices for use in testing subscriber lines, lines for central offices and lines served by a subscriber carrier; voice, video and data transmission controllers, controllers for use in voice, video and data transmission over copper, fiber optic and coaxial cable; computer printers, disc drives, control computer terminals and parts therefor