Ключевые слова: abstract, background, bandwidth, business, cable, closeup, communication, computer, connection, connector, cord, data, digital, duplex, electronics, engineering, equipment, ethernet, fc, fiber, glass, global, information, instrument, internet, isolated, laser, light, link, mode, net, network, object, optic, optical, patch, plug, port, provider, speed, swirl, switch, technology, telecommunications, traffic, transfer, twist, white, yellow,