Ключевые слова: abstract, background, blue, cable, circuit, closeup, color image, communication, computer, computer cable, computer network, connection, control, data, digital, electric, electrical, electrician, electricity, electronic, energy, engineering, equipment, factory, horizontal, industrial, industry, installation, internet, maintenance, network server, no people, panel, plastic, power, professional, red, repair, safety, technician, technology, tool, twisted, wire, wired, wiring, work, yellow,