Communication equipment and systems, namely, transmitters, receivers, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, regenerators, and network and element management, planning, and interface software and hardware systems, optical systems and networks employing such named equipment, namely, transmitters, receivers, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, and regenerators and reference materials describing such optical systems and equipment, namely, transmitters, receivers, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, and regenerators

Providing design, development, deployment, architecture, protection and restoration strategies, and maintenance services in the field of communication systems and equipment, namely, transmitters receivers, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, regenerators, and network and element management, planning, and interface software and hardware systems, and optical systems and networks employing such named equipment, namely, transmitters, receivers, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, and regenerators