ON Semiconductors AMIS-49587 is an IEC1334 compliant power line carrier modem using spread FSK (S- FSK) modulation for robust low data rate communication over power lines. AMIS-49587 is built around an ARM 7TDMI processor core and includes the MAC layer. With this robust modulation technique signals on the power lines can pass long distances. The half-duplex operation is automatically synchronized to the mains and can be up to 2400 bits/sec. The product configuration is done via its serial interface which allows the user to concentrate on the development of the application. The AMIS-49587 is implemented in ON Semiconductor mixed signal technology combining both analog circuitry and digital functionality on the same IC.