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Beef up your home's wiring infrastructure and control systems to accommodate the latest digital home products. Upgrade wiring in your existing home room-by-room, system-by-system or wire the home you're building. Learn wiring for the latest digital home technologies – whole home audio, outdoor audio, VoIP, PA systems, security systems with Web cams, home theater, home networking, alarms, back-up systems, and more. Perfect whether you do your own electrical work or want to talk intelligently to an electrical contractor.