We use an application called BurnInTest.  If you copy it’s “endpoint”
application to an accessory PC and set its network module into advanced mode
you can specify a network load level between the two.  It also has a built in
scrolling H pattern as well as CPU, memory, hard disk, and video stress
modules.  It has proven to be extremely useful for our lab.

 

Adam Rudd



________________________________

From: [email protected] [mailto:[email protected]] On Behalf Of Carl Newton
Sent: Tuesday, July 21, 2009 2:44 PM
To: [email protected]
Subject: 10% - 20% LAN port traffic for EN 55022 CE

 

List members,

Please forgive me if this issue has been  discussed already, I don't recall
seeing it.  

I'm curious as to what types of software tools\apps are being used to generate
and verify this desired level of LAN traffic for conducted emissions
measurements in accordance with EN 55022.   I'm referring to the following
clause in 9.6.3:

"In order to make reliable emission measurements representative of high LAN
utilization it is only necessary to create a condition of LAN utilization in
excess of 10 % and sustain that level for a minimum of 250 ms. The content of
the test traffic should consist of both periodic and pseudo-random messages in
order to emulate realistic types of data transmission (e.g. random: files
compressed or encrypted; periodic: uncompressed graphic files, memory dumps,
screen updates, disk images). If the LAN maintains transmission during idle
periods measurements shall also be made during idle periods (see Clause E.3,
[7])."

I'm also referring to ECANB TGN 16, section 3 (Guidelines) where it is
recommended that a 10% - 20% traffic rate be used, and where it is flatly
stated that a 100% traffic rate will fail with the recommended ISN.

Thanks in advance,

Carl -

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-

This message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. To post a message to the list, send your e-mail to
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