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Power line challenges and PLC
Intermittent noise sources, impedance changes, and attenuation make the power line a hostile signaling environment. Power Line Communications technology incorporate a variety of technical innovations to ensure reliable operation such as:
• Unique dual carrier frequency feature that automatically selects an alternate secondary communication frequency should the Highly efficient, patented, low-overhead forward error correction (FEC) algorithm to overcome errors induced by noise;
• Sophisticated digital signal processing, noise cancellation, and distortion correction algorithms integrated into the Power Line Communications transceiver that correct for a wide variety of signaling impediments, including impulsive noise, continuous tone noise, and phase distortion;
• High output, low distortion external amplifier circuits used on the transmission that can deliver 1Ap-p into low impedance loads, eliminating the need for expensive phase couplers in typical applications.
• Location of simple high-pass filter located between the Power Line Communications Transceiver and the power mains. This circuitry provides surge and line transient protection in addition to blocking the low frequency, 50Hz/60Hz AC mains signal.