Hi everyone,
Is anyone on the list familiar with the work on CISPR 22 and a part of the
standard committee? I am looking at CISPR 22 Edition 5 (2005), trying to
understand the specific requirements on ISN and CDN for Signal Line Conducted
emission, especially the so called Longitudinal
David:
All:
To claim compliance with EN 301489-1 (I am looking at V1.6.1), Clause 8.4.3
Limits, the way the clause is worded, your equipment is not installed in a
telecommunications center as one would infer from ETSI TR 101 651. The
reason for Table 9: Limits for conducted emissions of
So, how about my original question? Is Class A conducted emissions ok for a
tower-mount VSAT power amp? Depending on the answer, I will either enjoy a
beer or have a terrible weekend.
Regards,
David.
_
From: McInturff Gary [mailto:gmcintu...@spraycool.com]
Sent: 9 juin 2006 13:27
Mike, I owe you a beer now. You just made my day. Unfortunately since we are
unlikely to ever been in the same place I'm taking it upon myself to drink it
for you too. I'll let you know if you enjoyed it. Thanks Gary
_
From: Mike Hurley [mailto:mikehur...@meadtest.com]
Sent: Fri 6/9/2006
Everyone
It is also useful to remember that compliance with the relevant harmonised
standard(s) allows the manufacturer to place his product on the market, but
the potential customer may have additional, more onerous requirements. These
would be a contractual matter between the two.
So,
Gary,
Your recollection is correct, Telecom centres were indeed Class B in Europe.
It took us several years in the ETSI EE4 committee to get it changed to class
A and even then it was by the somewhat devious means of removing emission
limits from EN300 386 and instead referencing directly to
In message
51b0e17d0920404a967d381039139ad0db9...@ds10965.spraycool.com,
McInturff Gary gmcintu...@spraycool.com writes
I have a vague recollection that for some odd reason European
telecommunications centers were Class B but I can?t find the reference.
Mustn't interfere with the night guard's
Same question haunts me – I have a vague recollection that for some odd
reason European telecommunications centers were Class B but I can’t find the
reference. Maybe the distinction is “telecommunication centers ONLY” So
I’m also interested in the answer if some one has it.
Thanks
Gary
Grace,
I agree that trying a demonstrator before you buy is the best approach.
One thing that you want to take into consideration besides the compression
points that Bob mentioned is the harmonic / distortion requirements mentioned
in section 6 of 61000-4-3.
The 2006 version of IEC
David,
I am quite certain that a 'telecommunications center' is a central office.
But, before just assuming that Class A is ok for telecom centers, I'd check
with the telecom company to be sure that they don't have a requirement for
Class B (I have this gut feel that I've run into that but I
To further clarify, it is conducted emissions that is my concern, the
unit will likely be under class B radiated limits.
From: David Gelfand
Sent: 9 juin 2006 09:17
To: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question
Let me clarify. The item to be CE marked is an
In message
a3772c119941df41977965de844184d8ecc...@telefic.telefication.com,
Willem Jan Jong wjj...@telefication.com writes
Class A indeed applies for products meant for the general public. Class
B products are meant for industrial users (e.g. telecom providers)
operated by occupational
Although not defined as such, telecommunication centres (Major and Minor) are
described in section 5 of ETSI TR 101 651 (free download from www.etsi.org).
They generally relate to the ‘public telcoms network’
A ‘point-of-sale terminal system with a rooftop antenna’ would certainly
not be a
Let me clarify. The item to be CE marked is an antenna-mast-mounted
VSAT rf power amplifier.
Regards,
David.
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Willem
Jan Jong
Sent: 9 juin 2006 09:07
To: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question
David,
A
David,
A and B are vice versa. Class B is for general public. Class A for industrial
use.
A point-of-sale terminal can be categorized as class B !!
Kind regards,
Willem Jan Jong
From: Willem Jan Jong
Sent: vrijdag 9 juni 2006 14:57
To: 'emc-p...@ieee.org'
Subject: RE: EN 301 489-1 emissions
David,
Class A indeed applies for products meant for the general public. Class B
products are meant for industrial users (e.g. telecom providers) operated by
occupational workers.
A point-of-sale terminal can be categorized as class A.
Kind regards,
Ir. Willem Jan Jong
Product Assessor
I need help from our esteemed CE mark experts!
EMC radio equipment standard EN 301 489-1 calls out EN 55022 Class B
limits in general, and Class A limits for ...equipment intended for use
in telecommunication centres only,... What is considered a
telecommunication centre? Unfortunately I can
Ian,
There's a summary of the proposed changes on our web site at:
http://www.conformance.co.uk/ce_marking/ce_machinprop.php
This is based on the common position text and I have not had time to
cross reference to the published Directive yet. I'm going to try to
get this done in the next week
Nick
Do you know of any documents available highlighting the changes between the
old and new versions?
Ian Gordon
***
The information contained in this email and any attachments may be
confidential and is provided solely for the
All,
It might also be necessary to look at the VSWR or match of the intervening
connections between the antenna and amplifier.
The VSWR of the antenna is taken into account when the gain is measured.
However, the match at the cable connector interface and, where used, the
bulkhead connector may
DIRECTIVE 2006/42/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL
of 17 May 2006 on machinery, and amending Directive 95/16/EC (recast)
is published in today's OJ(L)
Regards
Nick.
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