Yes, but the intent is whether or not you move it "during normal
operation". Does your modem
instructions say to move it as part of its operation? I think not. After
all, you can touch the back
side of your PC but you don't during "normal operation.
Bob Heller
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
=======================================================
Carpentier Kristiaan
<Kristiaan.Carpentier@t To:
"'[email protected]'" <[email protected]>
homson.net> cc:
[email protected]
[email protected]
02/18/2004 10:48 AM Subject: RE: ESD test on
bottom side of equipment
Hi Bob,
My modem is a small product connected to the PC and the telephone outlet
with flexible cables. It is standing on my desk between papers and pencils
and I move it on the table if needed without shutting down. It's like a
telephone set, It can be anyware on a desk.
Vriendelijke Groeten, Best regards, Meilleures salutations,
Kristiaan Carpentier
From: [email protected] [mailto:[email protected]]
Sent: woensdag 18 februari 2004 17:27
To: Carpentier Kristiaan
Cc: [email protected]; [email protected]
Subject: Re: ESD test on bottom side of equipment
You would not move a modem "during normal use". You would move it to
reconfigure the system, clean, etc.
And this should be done with the system shut down.
Bob Heller
3M EMC Laboratory, 76-1-01
St. Paul, MN 55107-1208
Tel: 651- 778-6336
Fax: 651-778-6252
=======================================================
Carpentier Kristiaan
<Kristiaan.Carpentier@t To:
[email protected]
homson.net> cc:
Sent by: Subject: ESD test on
bottom side of equipment
owner-emc-pstc@majordom
o.ieee.org
02/18/2004 09:41 AM
Please respond to
Carpentier Kristiaan
Dear Group,
IEC61000-4-2 defines (Clause 8.3.1) that Direct discharges on the EUT shall
be applied "only to those points and surfaces of the EUT which are
accessible during normal use".
Further-on (Clause 8.3.1.c) there is stated that the following point are
excluded from testing: those points and surfaces of equipment which are no
longer accessible after fixed use or after following the instructions for
use, for example, the BOTTOM and/or wall side of equipment.
Question:
Should a table top equipment (modem) be tested on the bottom side ?
The bottom can be touched if the product is moved, so I have to test. If
instructions are provided not to move it, ESD tests can be avoided.
I'm quite interested in other opinions.
Regards,
Kris Carpentier
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