Computer hardware; computer peripherals; computer software for network management; electro technical, electronic, optical electro-optical apparatuses, devices, and instruments, namely, dense wavelength division multiplexer, repeater and converter for data transmission in optical fiber networks

COMPUTER HARDWARE, PERIPHERAL DEVICES FOR COMPUTERS, COMPUTER SOFTWARE, NAMELY MANAGEMENT SOFTWARE FOR MONITORING OF DATA TRANSMISSION IN OPTICAL FIBER NETWORKS; ELECTRO TECHNICAL, ELECTRONIC, OPTICAL, ELECTRO-OPTICAL APPARATUSES, DEVICES AND INSTRUMENTS, NAMELY DENSE WAVELENGTH DIVISION MULTIPLEXER, REPEATER AND CONVERTER FOR DATA TRANSMISSION IN OPTICAL FIBER NETWORKS