Bill,
Microphones for conferencing are professional products, and
therefore come under the scope of the professional audio and
video family of standards (prEN 55103-1 and -2) which are still
in (approved and complete) draft but have dates for implemention
and will be required within the next year.
Nick Rouse is quite right that emissions from microphones are
unlikely to be a problem. The problem lies with the
susceptibility standard (EN 55103-2). It imposes limits which are
probably difficult to meet for microphones containing built-in
active circuitry. From experience, we know that these
susceptibility limits are difficult even for audio input ports
carrying high-level audio. I would strongly recommend looking at
these standards closely, even though for the next few months it
may be legally sufficient to meet only the generic standards.
Bill Wray
Dolby Labs, San Francisco
______________________________ Reply Separator _________________________________
Subject: CE on Microphones
Author: Bill Pedersen <[email protected]> at Internet
List-Post: [email protected]
Date: 6/14/96 10:05 AM
We manufacture microphones used in a variety of applications primarily
for video and audio conferencing. A question has been asked if the
individual microphone needs CE approvals. These microphones are phantom
power at 18Vdc which for a safety issue is no issue, but the question is
EMI.
Does anyone have any experience with this issue?
Thanks for your comments.
Bill Pedersen
GENTNER COMMUNICATIONS CORP.
Internet:[email protected]
