I'm not sure anybody is arguing about having the cables in place during
emissions testing. They have to be there to exercise the equipment. Its during
the immunity portion that is under question, and throwing a fiber cable into a
trench to inject noise isn't purposeful.
Gary
From: John Woodgate [mailto:[email protected]]
Sent: Saturday, January 11, 2003 5:31 AM
To: [email protected]
Subject: Re: Fiber optic cable testing per EN 55022:1998 ?
I read in !emc-pstc that Juhasz, John (IndSys, GE Interlogix)
<[email protected]> wrote (in <4606624A2A8ABE41AFBA5F8306F2ECB203611C@F
TWMLVEM01.e2k.ad.ge.com>) about 'Fiber optic cable testing per EN
55022:1998 ?' on Fri, 10 Jan 2003:
>Is there anyone subscribed to this forum who is on
>the EN 55022 committee who could possibly shed light on this?
Emission testing according to CISPR 22 requires the product to be
configured in an attempt to maximise emissions. This means that all or
most cables are connected, since most emission normally comes from
cables. If some of these cables are fibre-optic, so be it.
--
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
Interested in professional sound reinforcement and distribution? Then go to
http://www.isce.org.uk
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