Sarmad, 48 volt (and other voltages) powered telecom equipment is certainly required to meet conducted emission standards. In the United States, look for Bellcore document GR-1089-CORE. While not a government document, it includes FCC Part 15 limits as well as going beyond them in frequency and emission (includes magnetic fields, for example), and it imposes emission limits on signal, VF, and power wires.
The goal is compliance with Part 15 and avoiding interference with radio and television reception and use. For this reason, if you are selling to a RBOC or CLEC in the USA, you'll find them specifying GR-1089 compliance to begin with. If they don't, someone will be in trouble down the line! Cheers, Cortland ====================== Original Message Follows (Headers and footers removed) Hello everyone, Does anyone know if there is any conducted emission test required ( In Europe and in the US) on DC powered equipment ( through a Battery) such as -48VDC Telecom equipment, something like the En55022 but for DC powered products? You help is highly appreciated. Thank you all, Sincerely, Sarmad Albanna Hughes Network Systems ====================== End of Original Message ===================== --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], or [email protected] (the list administrators).
