Ключевые слова: adsl, analog, board, broadband, business, cable, cabling, channels, color, communicate, communication, configure, connect, connection, connector, copper, cord, digital, electronic, hand, hardware, internet, krone, lines, network, networking, number, office, pair, panel, patch, phone, plastic, plug, professional, rack, row, security, signal, slot, station, switchboard, tech, technology, telecommunication, telephone, test, troubleshoot, troubleshooting, twisted, web, wire, wired, wiring,