In order to meet the requirements of the EMC Directive, it has always
been my understanding that the complete system must be tested. This
refers to any peripherals that are necessary to operate the EUT and
any other peripherals that the manufacturer states are part of the
system.
The EMC Directive Guidelines is very clear on what is considered a
"system".
Unfortunately, we use a PC from a large well known manufacturer (I
will resist the temptation to name them) that has failed Class B
radiated emissions by more than 10dB on various models with various
monitors.
It appears that some manufacturers use their "perfect test computers",
or ignore the effects of the computer when evaluating their EUT's. I
do not believe that this is acceptable.
I would love to receive some official documentation that states that
this practice is acceptable. Life would be good.
Regards
Joe Martin
EMC/Product Safety Engineer
P.E. Applied Biosystems
[email protected]
______________________________ Reply Separator _________________________________
Subject: RE: Peripherals
Author: [email protected] at INTERNET
List-Post: [email protected]
Date: 9/2/98 11:58 AM
The last time I asked the FCC for a ruling, I was told that peripherals
used for a "typical system" that were not sold with the EUT but required
for the EUT to function could not be modified, covered up, shielded, moved
out of the test area, etc. and had to be tested with the EUT. The equipment
I had at the time fell under FCC Part 15.
What is the ruling/opinions on this subject for Europe?
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