Re: EN 301 489-1 emissions question

2006-06-12 Thread emc-p...@ieee.org 
In message <17191.81.86.19.62.1150098003.squir...@www.kcchosting.co.uk>, 
dated Mon, 12 Jun 2006, Charles Blackham 
 writes

>However as Point-of-Sale equipment is not typically domestic equipment, 
>if you can state categorically that this is the case, you could write a 
>draft TCF and ask a Competent Body to give you an opinion to clause 
>3.1b of the R&TTE directive.

The crunch argument would be that no TV or radio receivers would be 
likely to be within 10 m (preferably 30 m) of the product.
-- 
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
2006 is YMMVI- Your mileage may vary immensely.

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

-

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RE: EN 301 489-1 emissions question

2006-06-12 Thread emc-p...@ieee.org 
David

You cannot self declare to the harmonised standard for class A emissions.

However as Point-of-Sale equipment is not typically domestic equipment, if
you can state categorically that this is the case, you could write a draft
TCF and ask a Competent Body to give you an opinion to clause 3.1b of the
R&TTE directive.

I successully argued a relaxation to radiated emissions requirements for a
piece of outdoor customer premise equipment tested to 301 489-4, part of
the argument involved testing some of the immunity aspects to higher
levels.

regards
Charlie

Charles Blackham
Sulis Consultants Ltd


> 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
> To: Mike Hurley; David Heald; David Gelfand
> Cc: emc-p...@ieee.org
> Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or
> B classification?
>
>
> 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 9:38 AM
> To: McInturff Gary; 'David Heald'; 'David Gelfand'
> Cc: emc-p...@ieee.org
> Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or
> B classification?
>
>
> 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 EN55022.   There are probably a few emc-pstc folk who remember the
> struggle.
>
> Mike
> -Original Message-
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
> McInturff Gary
> Sent: 09 June 2006 15:50
> To: David Heald; David Gelfand
> Cc: emc-p...@ieee.org
> Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or
> B classification?
>
> 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
>
> ____
>
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David
> Heald
> Sent: Friday, June 09, 2006 7:04 AM
> To: David Gelfand
> Cc: emc-p...@ieee.org
> Subject: Re: EN 301 489-1 emissions question
>
> 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 can't remember any specifics).
>
> Best Regards
> -Dave
>
>
> On 6/9/06, David Gelfand  wrote:
> 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 not find any definition
>
> for this term in the standard, or in any other standards I have
> consulted.
> mc-pstc
> -  This
> message is from the IEEE Product Safety Engineering Society emc-pstc
> discussion list. Website: http://www.ieee-pses.org/
> To post a message to the list, send your e-mail to emc-p...@ieee.org
> Instructions: http://listserv.ieee.org/request/user-guide.html
> List rules: http://www.ieee-pses.org/listrules.html
> For help, send mail to the list administrators:
> Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org
> For policy questions, send mail to:
> Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com
> All emc-pstc postings are archived and searchable on the web at:
> http://www.ieeecommunities.org/emc-pstc
>
> -
> 
> This message is from the IEEE Product Safety Engineering Society
> emc-

RE: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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 equipment intended to
be used in telecommunication centres only" is to be in alignment with EN 300
386, which does allow Class A conducted emissions limits, as previously
discussed.
 
It appears you will be having to comply with the Section 8.4.3; Table 8,
Conducted Limits.
 
  
William T. Sykes
Lucent Technologies EH&S
Product Safety/Conformance Manager
Room 7B-516A
600-700 Mountain Avenue
Murray Hill, NJ  07974-0636 
(908)582-6937
  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of David Gelfand
Sent: Friday, June 09, 2006 2:05 PM
To: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question


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
To: Mike Hurley; David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?


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 9:38 AM
To: McInturff Gary; 'David Heald'; 'David Gelfand'
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?


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 EN55022.   There are
probably a few emc-pstc folk who remember the struggle.
 
Mike

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff Gary
Sent: 09 June 2006 15:50
To: David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?
 
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
 

  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Heald
Sent: Friday, June 09, 2006 7:04 AM
To: David Gelfand
Cc: emc-p...@ieee.org
Subject: Re: EN 301 489-1 emissions question
 
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 can't remember any
specifics). 
 
Best Regards
-Dave

 
On 6/9/06, David Gelfand  wrote: 
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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.
mc-pstc 
-  This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 
To post a message to the list, send your e-mail to emc-p...@ieee.org 

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All emc-pstc postings are archived and searchable on the web at: 

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-  This
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For help, send m

RE: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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
To: Mike Hurley; David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?


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 9:38 AM
To: McInturff Gary; 'David Heald'; 'David Gelfand'
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?


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 EN55022.   There are
probably a few emc-pstc folk who remember the struggle.
 
Mike

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff Gary
Sent: 09 June 2006 15:50
To: David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?
 
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
 
  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Heald
Sent: Friday, June 09, 2006 7:04 AM
To: David Gelfand
Cc: emc-p...@ieee.org
Subject: Re: EN 301 489-1 emissions question
 
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 can't remember any
specifics). 
 
Best Regards
-Dave

 
On 6/9/06, David Gelfand  wrote: 
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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.
mc-pstc 
-  This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 
To post a message to the list, send your e-mail to emc-p...@ieee.org 

Instructions: http://listserv.ieee.org/request/user-guide.html 

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For help, send mail to the list administrators: 

Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org 

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All emc-pstc postings are archived and searchable on the web at: 

http://www.ieeecommunities.org/emc-pstc
-  This
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Re: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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 can't remember any
specifics). 
 
Best Regards
-Dave

 
On 6/9/06, David Gelfand  wrote: 

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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.

Is a point-of-sale terminal system with a rooftop antenna considered a
"telecommunication centre?"  My understanding is that EN 55022 Class B 
limits apply to residential environments, and Class A applies to
commercial and industrial environments.  I would hope in our situation
that Class A will suffice.  If not I am up the proverbial creek without
a paddle...

Thanks in advance,

David.

David Gelfand, P.E.
Product Integrity Engineer
Mitec Telecom Inc
9000 Trans-Canada Highway
Montreal QC H9R 5Z8
Canada
514 694 9000 x2262

-

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David Heald:emc-p...@daveheald.com

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-  This
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Re: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
In message 
, 
Willem Jan Jong  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 workers.

Surely it's the other way round. Class A is  'industrial', excluding 
'light industry', which requires Class B, along with 'commercial' and 
'residential'.

You just might be able to get a Notified Body to agree that no radio or 
TV receiver is likely to be within 10 m of your product, and thus Class 
A could be permitted.

At some point, these classes will have to  be revisited, because many 
Class A products have found their way into homes, with no obvious 
adverse consequences. Furthermore, some spectrum management authorities 
in Europe now regard the LF and MF broadcast bands as 'unprotectable' 
because of the general level of 'EMC smog', quite a lot being 
contributed by large numbers of Class B-compliant products.

In addition, because the emission limits are based on separations of 3 
m, 10 m or 30 m, there is no protection against a receiver being 
interfered with by a small SMPS only 30 cm away, maybe even its own 
power supply!
-- 
John Woodgate

-

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RE: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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 ‘telecommunication centre’ in this context
 
Mike Hurley
 
Director
Mead testing ltd
Units 23/25 Mead park
River Way
Harlow
CM20 2SE
 
mikehur...@meadtest.com
www.meadtest.com
phone 44 (0) 1279 635865
fax   44 (0) 1279 635874
 
 

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Gelfand
Sent: 09 June 2006 13:25
To: emc-p...@ieee.org
Subject: EN 301 489-1 emissions question
 
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 not find any definition
for this term in the standard, or in any other standards I have
consulted.  
 
Is a point-of-sale terminal system with a rooftop antenna considered a
"telecommunication centre?"  My understanding is that EN 55022 Class B
limits apply to residential environments, and Class A applies to
commercial and industrial environments.  I would hope in our situation
that Class A will suffice.  If not I am up the proverbial creek without
a paddle...
 
Thanks in advance,
 
David.
 
David Gelfand, P.E.
Product Integrity Engineer
Mitec Telecom Inc
9000 Trans-Canada Highway
Montreal QC H9R 5Z8
Canada
514 694 9000 x2262
 
-

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For help, send mail to the list administrators:
 
 Scott Douglas   emcp...@ptcnh.net
 Mike Cantwell   mcantw...@ieee.org
 
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 Jim Bacher: j.bac...@ieee.org
 David Heald:emc-p...@daveheald.com
 
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RE: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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 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 question


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 Certification
Telefication B.V.
Edisonweg 12 A
6902 PK Zevenaar
The Netherlands
+31 (0) 316 583 165



From: David Gelfand [mailto:david.gelf...@mitectelecom.com]
Sent: vrijdag 9 juni 2006 14:25
To: emc-p...@ieee.org
Subject: EN 301 489-1 emissions question


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 not find any definition
for this term in the standard, or in any other standards I have
consulted.  

Is a point-of-sale terminal system with a rooftop antenna considered a
"telecommunication centre?"  My understanding is that EN 55022 Class B
limits apply to residential environments, and Class A applies to
commercial and industrial environments.  I would hope in our situation
that Class A will suffice.  If not I am up the proverbial creek without
a paddle...

Thanks in advance,

David.

David Gelfand, P.E.
Product Integrity Engineer
Mitec Telecom Inc
9000 Trans-Canada Highway
Montreal QC H9R 5Z8
Canada
514 694 9000 x2262

-

This message is from the IEEE Product Safety Engineering Society
emc-pstc discussion list.Website:  http://www.ieee-pses.org/

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RE: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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 question


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 Certification
Telefication B.V.
Edisonweg 12 A
6902 PK Zevenaar
The Netherlands
+31 (0) 316 583 165



From: David Gelfand [mailto:david.gelf...@mitectelecom.com]
Sent: vrijdag 9 juni 2006 14:25
To: emc-p...@ieee.org
Subject: EN 301 489-1 emissions question


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 not find any definition
for this term in the standard, or in any other standards I have
consulted.  

Is a point-of-sale terminal system with a rooftop antenna considered a
"telecommunication centre?"  My understanding is that EN 55022 Class B
limits apply to residential environments, and Class A applies to
commercial and industrial environments.  I would hope in our situation
that Class A will suffice.  If not I am up the proverbial creek without
a paddle...

Thanks in advance,

David.

David Gelfand, P.E.
Product Integrity Engineer
Mitec Telecom Inc
9000 Trans-Canada Highway
Montreal QC H9R 5Z8
Canada
514 694 9000 x2262

-

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RE: EN 301 489-1 emissions question

2006-06-09 Thread emc-p...@ieee.org 
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 Certification
Telefication B.V.
Edisonweg 12 A
6902 PK Zevenaar
The Netherlands
+31 (0) 316 583 165



From: David Gelfand [mailto:david.gelf...@mitectelecom.com]
Sent: vrijdag 9 juni 2006 14:25
To: emc-p...@ieee.org
Subject: EN 301 489-1 emissions question


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 not find any definition
for this term in the standard, or in any other standards I have
consulted.  

Is a point-of-sale terminal system with a rooftop antenna considered a
"telecommunication centre?"  My understanding is that EN 55022 Class B
limits apply to residential environments, and Class A applies to
commercial and industrial environments.  I would hope in our situation
that Class A will suffice.  If not I am up the proverbial creek without
a paddle...

Thanks in advance,

David.

David Gelfand, P.E.
Product Integrity Engineer
Mitec Telecom Inc
9000 Trans-Canada Highway
Montreal QC H9R 5Z8
Canada
514 694 9000 x2262

-

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 Scott Douglas   emcp...@ptcnh.net
 Mike Cantwell   mcantw...@ieee.org

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 David Heald:emc-p...@daveheald.com

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RE: EN 301 489-1 emissions question - Euro telecom center A or B classification?

2006-06-09 Thread emc-p...@ieee.org 
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 9:38 AM
To: McInturff Gary; 'David Heald'; 'David Gelfand'
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?


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 EN55022.   There are
probably a few emc-pstc folk who remember the struggle.
 
Mike

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff Gary
Sent: 09 June 2006 15:50
To: David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?
 
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
 
  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Heald
Sent: Friday, June 09, 2006 7:04 AM
To: David Gelfand
Cc: emc-p...@ieee.org
Subject: Re: EN 301 489-1 emissions question
 
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 can't remember any
specifics). 
 
Best Regards
-Dave

 
On 6/9/06, David Gelfand  wrote: 
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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.
mc-pstc 
-  This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 
To post a message to the list, send your e-mail to emc-p...@ieee.org 

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Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org 

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All emc-pstc postings are archived and searchable on the web at: 

http://www.ieeecommunities.org/emc-pstc -
 This message
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RE: EN 301 489-1 emissions question - Euro telecom center A or B classification?

2006-06-09 Thread emc-p...@ieee.org 
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, Class A may be acceptable for placing on the market under the EMC
Directive for appropriate locations/environments, but the customer may state a
requirement Class B, in his invitation to tender.

 

…  and yes, I was also a member of ETSI EE4 a long, long time ago …

 

Best wishes

 

Brian  

 

Brian Jones

EMC Consultant and Competent Body signatory

 

 

  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Mike Hurley
Sent: 09 June 2006 17:38
To: 'McInturff Gary'; 'David Heald'; 'David Gelfand'
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?

 

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 EN55022.   There are
probably a few emc-pstc folk who remember the struggle.

 

Mike


From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff Gary
Sent: 09 June 2006 15:50
To: David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?

 

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

 

  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Heald
Sent: Friday, June 09, 2006 7:04 AM
To: David Gelfand
Cc: emc-p...@ieee.org
Subject: Re: EN 301 489-1 emissions question

 

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 can't remember any
specifics). 

 

Best Regards

-Dave

 

On 6/9/06, David Gelfand  wrote: 

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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.
mc-pstc 

-  This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 

To post a message to the list, send your e-mail to emc-p...@ieee.org 


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 This message
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RE: EN 301 489-1 emissions question - Euro telecom center A or B classification?

2006-06-09 Thread emc-p...@ieee.org 
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 EN55022.   There are
probably a few emc-pstc folk who remember the struggle.
 
Mike

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of McInturff Gary
Sent: 09 June 2006 15:50
To: David Heald; David Gelfand
Cc: emc-p...@ieee.org
Subject: RE: EN 301 489-1 emissions question - Euro telecom center A or B
classification?
 
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
 
  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Heald
Sent: Friday, June 09, 2006 7:04 AM
To: David Gelfand
Cc: emc-p...@ieee.org
Subject: Re: EN 301 489-1 emissions question
 
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 can't remember any
specifics). 
 
Best Regards
-Dave

 
On 6/9/06, David Gelfand  wrote: 
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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.
mc-pstc 
-  This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 
To post a message to the list, send your e-mail to emc-p...@ieee.org 

Instructions: http://listserv.ieee.org/request/user-guide.html 

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Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org 

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All emc-pstc postings are archived and searchable on the web at: 

http://www.ieeecommunities.org/emc-pstc -
 This message
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Re: EN 301 489-1 emissions question - Euro telecom center A or B classification?

2006-06-09 Thread emc-p...@ieee.org 
In message 
<51b0e17d0920404a967d381039139ad0db9...@ds10965.spraycool.com>, 
McInturff Gary  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 TV! (;-)
-- 
John Woodgate

-

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 Mike Cantwell   mcantw...@ieee.org

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 David Heald:emc-p...@daveheald.com

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RE: EN 301 489-1 emissions question - Euro telecom center A or B classification?

2006-06-09 Thread emc-p...@ieee.org 
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

 

  _  

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of David Heald
Sent: Friday, June 09, 2006 7:04 AM
To: David Gelfand
Cc: emc-p...@ieee.org
Subject: Re: EN 301 489-1 emissions question

 

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 can't remember any
specifics). 

 

Best Regards

-Dave

 

On 6/9/06, David Gelfand  wrote: 

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 not find any definition 
for this term in the standard, or in any other standards I have
consulted.
mc-pstc 

-  This
message is from the IEEE Product Safety Engineering Society emc-pstc
discussion list. Website: http://www.ieee-pses.org/ 

To post a message to the list, send your e-mail to emc-p...@ieee.org 


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