Yea, I do. This is going to add time and cost to the test procedure in
place and I don't see it fixing any problems. I might concede that it
may be a more repeatable reading on cables, but that is secondary to the
real issue.
The real issue is this. Is the lack of this testing causing a
proliferation of many non-compliant systems? I believe the answer is
no.(But I certainly agree that I don't have any real data to back this
statement up.). Conversely, I haven't seen a proliferation of data
coming from the controlling agencies that they have identified a problem
either.
There are some non-compliant systems but not because of the
measurement techniques are inadequate.
The job of standards committees is not to invent new crap until
they determine the old stuff isn't sufficient. So prove the problem
first and if you can't then go away.
Snort! - Gary
-----Original Message-----
From: grant.pi...@adn.alcatel.com
[SMTP:grant.pi...@adn.alcatel.com]
Sent: Thursday, October 08, 1998 10:38 AM
To: emc-p...@majordomo.ieee.org
Subject: New CISPR22 requirement
The most recent issue of CISPR22 (Third edition, Nov. 1997)
requires
conducted emissions testing on signal cables (section 5.1).
Section 9.5
provides the procedures for making such measurements.
Alternative methods
are suggested involving Impedance Stabilization Networks and
Current Probes.
All types of cables are covered (e.g. balanced/unbalanced,
screened/unscreened, single pair/multiconductor, etc.).
Has a CENELEC version of CISPR22-1997 been released or drafted?
If not
released yet, when is it expected? When would it be expected to
be
communicated by the Commission, and when would it become
mandatory? Does it
contain a requirement for conducted emissions on signal lines?
Does anyone have any particular concerns regarding compliance
with this
standard?
Thanks in advance.
R. Grant Pinto
Alcatel USA
Ashburn, VA
grant.pi...@adn.alcatel.com
1-703-724-2759
1-703-724-2132-fax
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