David,
EN 55022:1998 + Amendment A1:2000 was listed in the Official Journal of
the European Community on 26 JUL 2001, in C208 Volume 44. So you have
had the *option* of using it since then. It is still included in the
latest listing of harmonized standards for the EMC directive, which came
out 7 DEC 2002, in C304 Volume 45. The date of cessation of presumption
on conformity of the superseded standard (DOPOCOSS) is 1 AUG 2003.
So EN 55022:1994 and its amendments are valid for only another seven
months. This worries a number of EMC and design engineers that I know,
because EN 55022:1998 has Conducted Common Mode Voltage/Current Limits
for Telecommunication Ports that aren't in EN 55022:1994. And to date,
local area network (LAN) ports like Ethernet have had a very hard time
meeting these limits.
If you would like a lot more information about EN 55022, please read our
web page about emission standards for ITE at:
http://www.dbicorporation.com/emission.htm
John Barnes KS4GL, PE, NCE, ESDC Eng, SM IEEE
dBi Corporation
http://www.dbicorporation.com/
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