Switchboards; Transceivers; Alarm monitoring systems; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Computer hardware; Computer network adapters, switches, routers and hubs; Computer networking hardware; Ethernet cables; Fiber optic cables; Fiber optic connectors; Fiber optics; Network cards; Optical cables; Optical couplers; Optical fiber cables; Optical sensors; Semiconductor devices; Signal band separators for use...