Renesas Electronics, a premier supplier of advanced semiconductor solutions, today announced a new voice-over-power line communication (PLC) solution that enables both data communication and voice communication capabilities over existing power networks. The PLC solution reduces the amount of internal wiring required in buildings, enabling reduced implementation and maintenance costs for public address (PA) systems and security systems. The new solution consists of Renesas' PLC software modem (R9A06G037), which manages the PLC communications, and the RX651 microcontroller (MCU), which controls the audio codec processing. The new solution enables system manufacturers to enhance security systems by incorporating voice capabilities to an existing installation at low cost. For a new installation that includes various sensors as well as voice communication, wiring costs can be reduced by approximately 60 percent while installation and maintenance costs can be reduced up to 40 percent.