You own the cable TV company that provides service to 100,000 households in four counties. A winter storm has iced the power lines and you have been struggling with power fluctuations all day. The Super Bowl telecast starts in two hours. Can you spot a power supply problem before it brings on a major outage?

Cable television customers demand trouble-free service in an industry that's "on" 24-hours a day, seven days a week. Cable operators have to keep their fingers on the pulse of their power supply to insure that they can meet the schedule. Power can be lost, voltage can drop, or vandalism can occur on the network. If a problem develops unnoticed a major outage could shut down the network.