 PLC-J (in Japan). In January 2006, Panasonic debuted its new HD-PLC Ethernet adapter, which supports up to 190Mbps data speed over a range of 500 feet (150 m). HD-PLC makes it possible to connect, over one unified network, high-definition video con- tent, music playback, Internet gaming, VoIP phone service, color video monitor- ing, and computers and peripherals. The new adapter also addresses security, automatically setting AES 128-bit encryption with the push of a setup button on each unit. To address the noise and interference issues present in the powerline medium, HD-PLC uses OFDM and sophisticated error control to ensure the highest- quality transmission and reliability in the face of noise and interference. Quite a few other players are also creating hardware PLT HAN devices. Another PLT standard is X10 Ltd.'s (www.x10.com) standard X10. X10 is a communications protocol for remote control of electrical devices and communica- tions over standard household AC powerline wiring (with off, on, and dim func- tions). Manufacturers of home appliances can design and embed X10 transmitters in them, and the receiving and control devices are made by X10 Ltd. itself. The Consumer Electronic Bus (CEBus) home networking standard is for mul- tiple alternatives, including powerlines. The CEBus effort began in 1984, when members of the EIA identified a need for standards that included more than on, off, dim, bright, all lights on, and all units off controls. After six years of meeting on a regular basis, the engineers proposed the CEBus standard. The standard was released in 1992, presenting an open architecture set of specification documents that define protocols for how to make products communicate through powerline wires, low-voltage twisted-pair, coax, infrared, RF, and fiber. Presently, the CEBus communications hardware, language, and protocol are available on a chip pro- duced by Intellon Corporation (www.intellon.com). Having moved out of the labo- ratory and into the market, the CEBus trademark is now owned by the 