We have spent a lot of time  researching this and 1998 version ISN will
not meet the new requirements. Currently the only ISN compliant are from
Fischer. 

If anyone is a VCCI member there is an excellent paper on the site on
this subject. 

Rgds,

 Julian Jones
 Hursley EMC Services



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of T.Sato
Sent: 27 November 2006 21:52
To: graceli...@gmail.com
Cc: emc-p...@ieee.org
Subject: Re: Conducted Emission at Telecommunication Ports

On Mon, 27 Nov 2006 13:53:55 -0500,
  "Grace Lin" <graceli...@gmail.com> wrote:

> One of the equipment turnkey proposals for CISPR 22/EN 55022 from a 
> well-known equipment manufacturer does not include an ISN.  In 
> addition, a friend suggested me to hold on the purchase of ISN as the
telecom ports'
> requirement might go away.  Can some one share the latest development 
> on this requirement?

You should note that requirements for ISNs were changed in CISPR
22:2003.
If you purchase ISN for EN 55022:1998 now, maybe you can find that you
need to purchage new ISN very soon.

Regards,
Tom


Tomonori Sato  <vef00...@nifty.ne.jp>
URL: http://homepage3.nifty.com/tsato/

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