Dan, Title 47 of The Code of Federal Regulations, Part 68 is what you are looking for.
http://www.gpo.gov/nara/cfr/index.html will get you started. A lot of procedures have changed in recent years,but the objectives are still the same ( protection for the network/network personnel) On a modem, you will want to make sure there is adequate isolation ( HV steady-state and impluse), in- band signal power levels within limits, out of band level limits, tariff protection, longitudinal balance, ac and dc impedance characteristics. May initially seem overwhelming but it really isn't. Regards, Eric Petitpierre Pulsecom Herndon,VA ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.