HF OPTPROD

Computer chipsets for use in digital subscriber line (DSL) data transmission systems; Electronic communications systems comprised of computer hardware and recorded software for the transmission of data between two points; Electronic integrated circuits; Ethernet adapters; Ethernet controllers; Ethernet repeaters; Ethernet switches; Ethernet transceivers; Hardened units composed of microprocessors and integrated transmitters and receivers installed in the field and on board both mobile and stationary equipment in large scale mining, construction, and industrial operations to collect data from various applications, to transmit the data to central processing facilities, and to receive data transmissions directed to the applications and equipment; Hardened units composed of microprocessors and integrated transmitters and receivers installed in the field at large scale mining, construction, and industrial sites to collect data from monitoring and control installations, to transmit the data to central processing facilities, and to receive data transmissions directed to the installations; Intranet servers; Network access server hardware; Network servers