[PSES] European regulation on video resolution

[Fan-keung Chang]

Hi Group,


Is there any European regulation require devices selling in Europe must
support video resolution in 50Hz?  I thought most TV already support 60Hz
in Europe.


Thanks all,

Frank

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[PSES] RF shield box

[Fan-keung Chang]

Hello everyone,

Can someone suggest me some site that I can buy some cheap Chinese RF
shield boxes for testing on manufacturing floor?

Thanks,
Frank

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Re: [PSES] 4k TV/monitor?

[Fan-keung Chang]

I use ASUS PA328Q for 4k60

On Thu, Oct 15, 2015 at 9:06 AM, Brent DeWitt  wrote:

> Does anyone have a recommendation for a 4k capable tv or monitor to use
> for emissions testing?  I have a couple of samples of Samsung U28E590D
> which pass radiated emissions above a GHz, but not by much (3dB).
>
> Any positive experiences would be welcomed!
>
> Brent DeWitt
> -
> 
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only for test, please ignore this mail.

[aboo, chang]

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EDD

[chang]

Does anybody know of a distributor (UK or Ireland) of EDD safety test
equipment ??

thanks
B.Chang


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Re: Agency approvals on components in CE mar

[Paul Chang]

Hi all,

The safety requirements under the low voltage directive are under a self
declaration procedure.  This means at least 2 things in line with your
question.

First, you are free to declare compliance to the appropriate standard on
your own or with a third party (with a technical file to back it up).

And it also means that you will be held responsible for using compliant (or
non-compliant) components in your device when it is being shipped.

The reason most agencies require a safety mark other than CE Marking is
because we realize through error, carelessness, or lac of integrity, some
devices with CE Marking are not compliant.  You'd save yourself a huge
headache by adopting the same philosophy.

Paul Chang
TUV Telecom
-Original Message-
From: Mel Pedersen mpeder...@midcom.anza.com
To: emc-p...@ieee.org emc-p...@ieee.org; 'JENKINS, JEFF'
je...@ftc2.aei.com
List-Post: emc-pstc@listserv.ieee.org
Date: Wednesday, September 09, 1998 12:40 PM
Subject: RE: Agency approvals on components in CE mar


One thing to keep in mind is that if possible, it is certainly preferable
to use agency approved components...this will greatly reduce troubles
associated with making sure the component manufacturer does not make any
design or manufacturing changes that may affect the validity of your test
report or product approvals.

Mel PedersenMidcom, Inc.
Homologations Engineer Phone:  (605) 882-8535
mpeder...@midcom-inc.com Fax:  (605) 882-8633

--
From: JENKINS, JEFF[SMTP:je...@ftc2.aei.com]
Sent: Tuesday, September 08, 1998 11:31 AM
To: emc-p...@ieee.org
Subject: Agency approvals on components in CE mar


It is my understanding that the European Commission has stated that a
manufacturer has the freedom to determine the acceptability of components
used in CE marked products.  (Or words to that effect.)  I would conclude
that this would remove the need for using European agency approved
components in safety critical locations.  Any reputable agency approval, or
appropriate evaluation by the manufacturer, would be acceptable.

Does anyone know of where I can obtain this statement in writing?  I'd like
to have something to back this up.  Also, I welcome comments on the
conclusions I have drawn based on this alleged EC statement.

Regards,

Jeff Jenkins
Senior Regulatory Compliance Engineer
Advanced Energy Industries, Inc.
Fort Collins, CO  USA




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Re: Re[2]: Peripherals

[Paul Chang]

Hi Roger,

I think when they say that they want worse case, they are referring to
maximizing possible emissions from a test set up (using any compliant
devices as peripherals).

If they were to request that you use the most rf-emitting peripherals that
you can find, you'd be testing with a bunch of non-compliant pieces, and
nobody'd be able to pass.

Paul K. Chang
TUV Telecom
508 460-9072 x235
-Original Message-
From: roger...@astec-asia.com roger...@astec-asia.com
To: dir...@patriots.east.sun.com dir...@patriots.east.sun.com;
gmcintu...@packetengines.com gmcintu...@packetengines.com;
s_doug...@ecrm.com s_doug...@ecrm.com; Gary McInturff
gmcintu...@packetengines.com
Cc: emc-p...@majordomo.ieee.org emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Thursday, September 03, 1998 10:36 AM
Subject: Re[2]: Peripherals



 I heard from the test lab that you can use a good system as your
 peripherals to test your EUT rather than test it with a worst system
 to obtain worst case for CE and FCC compliance, is that right?  As I
 know for CE and FCC, they only require a typical system, so you can
 choose your favorite system. Any comments?

 Regards,
 Roger Hsu


__ Reply Separator
_
Subject: RE: Peripherals
Author:  Gary McInturff gmcintu...@packetengines.com at Internet
Date:9/2/98 10:09 AM


Dan,
 Thank you very much for providing the paragraphs. I happen to be
away from my office and can't get to these documents handily. I follow
your logic on the DoC equipment modifications thread but (theirs always
a but(t)). We are now discussing interpretation and intent. I think that
the FEDS are allowing for a change in the field during test time. The
assumption is that you make a change that will be manufacturable. In
fact I always re-test to insure this is true, particularly if it is a
mechanical rather than component value change. As a manufacturing of the
actual EUT I have control over the production of the test item. I don't
have that luxury with other vendors equipment. They could change it, but
let's face it they are more likely to tell you that the only people they
have a problem with is when your equipment, and do nothing. So in this
case documenting the change doesn't really solve the problem unless you
were to modify each peripheral as well.
 I guess I should point out that I don't have a huge problem. On
occasion I have some troubles with somebody else's stuff and I have no
reason to  believe it to be anything other than the single sample I
happen to be looking at. Its more that I don't have the time in the
schedule, or the nature to mess around during tests. I look for rock
solid peripherals and won't use one unless I first check it out and am
satisfied that it not only meets the limits but provides some margin to
those limits.
 Thanks again Dan.
 Gary


 -Original Message-
 From: dir...@patriots.east.sun.com
[SMTP:dir...@patriots.east.sun.com]
 Sent: Tuesday, September 01, 1998 12:52 PM
 To: gmcintu...@packetengines.com; s_doug...@ecrm.com
 Cc: emc-p...@majordomo.ieee.org
 Subject: Re: Peripherals

 All,

 I believe you guys are referring to 47CFR2.1033,
 Application for certification:

  (8) If the equipment for which certification is being
sought
  must be tested with peripheral or accessory devices
connected
  or installed, a brief description of those peripherals
or
  accessories. The peripheral or accessory devices shall
be
  unmodified, commercially-available equipment.

 See also the previous section, 47CFR2.1031:

  The general provisions of this subpart [section] 2.901
et seq.
  shall apply to applications for and grants of
certification.

 As for products only subject to a Declaration of Conformity,
 there is this requirement in 47CFR2.1075a (Retention of
records):

  (1) A record of the original design drawings and
specifications
  and all changes that have been made that may affect
  compliance with the requirements of [section] 2.1073.

 My interpretation is that unmodified, commercially-available
 support equipment are only required for FCC Certification.
 For Declarations of Conformity, I would take the
retention-of-records
 requirements one step further. I would not modify support
equipment
 unless it does not disguise emissions from the EUT, and I would
 justify it in the test report per 47CFR2.1075a3 (Retention of
records):

  (iv) A description of the equipment under test (EUT) and
  support equipment connected to, or installed within, the
EUT;

 To be fair, one argument against my intepretation is the
following
 section, which explicitly requires that modifications
 to the EUT (but not support equipment,) be documented:

  (viii) A description of any modifications made to the
EUT
  by the testing company or individual to achieve
compliance
  with the regulations;

 Please also note that the requirements of 47CFR2.1075a
 (Retention of records) may not apply

Re: USA-EU MOU

[Paul Chang]

Dear Richard,

In my office (I am out of town now), I have the name and # of the FCC Agent
in charge of fielding Mutual Recognition Agreement questions.

But as far as I've heard, from my digging around, the date is very tentative
for full effect of the MRA (the soonest estimate that I've heard has been
2000).

On another note, but on the same subject, there is an upcoming CTE Directive
that is supposed to allow for a more liberallized procedure for telecom
devices.  Again the particulars are in my office, but I think this included
Radio devices.

I'll return to my office on Tuesday, please contact me there or leave a
message at:  508 460-0792 x235.

Paul K. Chang
TUV Telecom
-Original Message-
From: WOODS, RICHARD wo...@sensormatic.com
To: 'emc-pstc' emc-p...@majordomo.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Wednesday, September 02, 1998 2:22 PM
Subject: USA-EU MOU


A couple of months ago, the USA and EU signed a document that takes us
closer to the full implementation of mutual recognition of certifications.
However, it is still not clear to me when we in the USA can expect to be
able to submit transmitter test data to a USA based certified body and
obtain the equivalency of an EU Type Examination Certificate.

Was this issue discussed at the Symposium? If so, can someone fill us all
in
on the latest info.

Thanks,

Richard Woods
Sensormatic Electronics
wo...@sensormatic.com
Views expressed by the author do not necessarily represent those of
Sensormatic.

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Re: Help with USA EMC-Safety certification

[Paul Chang]

Dear Tony,

All Devices connecting to the Public Switch Telephone Network (PSTN) needs
to be tested to FCC Part 68 before it can be sold in the US.  This would be
similar to the testing that I expect you would have tested to, for the
crossed hockey stick mark for Europe.

The US requirements that you met under Part 15 and UL1950 should be enough
for EMC and Safety.

If you don't already have a lab that can do this testing, or if you simply
have more questions, call me at TUV Telecom:

Best Regards,
Paul K. Chang
TUV Telecom
165 Forest Street
Suite 201
Marlboro, MA 01752

(508) 460-0792 x235
(508) 460-9073 fax
-Original Message-
From: TO tonyo_e...@onaustralia.com.au
To: 'emc-p...@ieee.org' emc-p...@ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Wednesday, August 19, 1998 6:59 AM
Subject: Help with USA EMC-Safety certification


We have Telecommunication terminal equipment (switch), which has been
tested for European market for EMC and safety in an Australian Test House.
It meets EMC emission limits CISPR22 class A, IEC-1000 series Immunity
limits and IEC950 safety requirements. This is sufficient for CE marking.
Equipment complies with FCC part 15 emission requirements and UL1950.

Could someone put me on the right track regarding EMC and safety
certification in the USA. Can we legally issue certificate of compliance and
export this equipment to USA or is it mandatory to test it again in the USA
test House?

Do we have to register this equipment with Authorities such as FCC?

How do we go formally about it

Regards


Tony Olejnicki
tonyo_e...@onaustralia.com.au



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