Very good. In fact, this answer applies to practically EVERY question
'Do we need to test'? Re 'testing to find out if we need to test' and '
to see the effect', we can use cheaper and quicker 'pre-compliance'
testing. If the results are in doubt, that indicates in itself a need to
fully test.
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2018-04-27 11:45, Matthew Wilson wrote:
You ask for opinions so I’ll give mine, based on the device needing to
meet the EU EMC directive as you mention EN 55032. It’s up to you but
the decision if the debug port must be tested is part of the risk
analysis and assessment required by the EU EMC directive. This is
including foreseeable misuse. That risk based decision whether to
test or not will then be part of your technical file for the product
supporting the declaration of conformity and CE mark.
I would think leaving the wired network port attached is quite a
reasonable foreseeable misuse and so it could be expected to test to
see the effect of that operating mode.
But like all these sort of questions the answer is ‘it depends’. We
don’t know from your post what the device is, the environment in which
it is used, the class of end user (skilled, unskilled?) and nor do we
know all the circumstances that make up the factors to the ‘it
depends’. All this can really only be untangled for the product with
a risk exercise.
See an article here re EMC risk analysis:
https://www.element.com/nucleus/2017/08/17/13/42/what-is-an-emc-risk-analysis
Then only you can decide based on your risk outcomes whether to test
the port or not and have good supporting evidence as to the decision
for or against test.
Hope that helps.
Matthew Wilson,
Technical Director,
GB Electronics (UK) Ltd.
*From:*itl-emc user group [mailto:itl...@itl.co.il]
*Sent:* 24 April 2018 11:19
*To:* EMC-PSTC@LISTSERV.IEEE.ORG
*Subject:* [PSES] EN 55032 Testing on Wired Network Port
A device has a wired network port used for de-bugging only.
The port is not used during normal operation of the device.
Any opinions on whether or not this port should be tested?
*Regards,***
*David Shidlowsky***| Technical Reviewer
*Address*1 Bat-Sheva St. LOD 7120101 Israel
*Tel*972-8-9186113*Fax* 972-8-9153101
*Mail*: dav...@itlglobal.org <mailto:dav...@itlglobal.org>
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Matthew Wilson
Technical Director
GBE <https://gbelectronics.uk>
https://gbelectronics.uk
T: +44 (0)1903 244500
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Ascot House // Mulberry Close // Woods Way
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