i am beginning a project in which I need to use a power line communication.i don't know what is the state-of-the-art. for that reason i would like that somebody provided a list to me of the commercial power line modems that exist at the moment.
you can always use st modem or intellon ssc or use echlon components
visit the following sites www.intellon.com www.echlon.com www.st.com
the st modem data sheet is attached here