Data communications equipment and software, namely, computer software for network communication, serial data converters, Ethernet and fiber-optic repeaters, namely, RS-232C, RS-485 and RS-422; Ethernet and fiber-optic software and equipment, namely, serial data converters and repeaters and computer software for network communication

Data communications equipment and software, namely, serial data converters and repeaters including RS-232C, RS-485 and RS-422, Ethernet and fiber-optic convertion version products

Electronic and optical communications instruments and components, namely serial data converters and repeaters, optical transmitters, optical receivers, optical data links, optical transceivers, digital transmitters; Ethernet and fiber-optic conversion version products, namely, Serial Data Converters, Serial Data Repeaters, Ethernet Switches, Ethernet Data Converters, Fiber Optic Media Converters