Hello,
For a peripheral device, which can work as a stand alone device to (like PC
Camera) what additional standards applies to besides EN 50081-1, EN50082-1
and EN60950.
Thank you for your assistance.
Regards,
Bharat Shah
5/11/00
---
This message is
Jay,
How could I forget??My Orange Book (Listed and Classified
Components) is starring at me from the middle of the top shelf!Thank you
Jay for adding to my ramblings.
Tania Grant, tgr...@lucent.com mailto:tgr...@lucent.com
Lucent Technologies, Intelligent Network Unit
Messaging
The release of the final version of UL60950 Third Edition
was delayed until some time this summer (from the UL Bulletin). It was
originally scheduled to be released by April 1, 2000.
It will be a Bi-National standard with CSA 60950 Third
Edition and will be
Hi Group:
Do any of you know when an offical copy of the EN60950
will be available in standard manual form and CD ROM?
Can we order this now?
Thanks,
kt
From: George Sparacino george.sparac...@bostonacoustics.com
To: 'emc-pstc' emc-p...@ieee.org
Cc: 'wojciech_ba...@nmss.com'
Look again. There is a UL60950. Check the UL website:
60950 Information Technology Equipment (Note: This is NOT a
new Standard, but we changed the designation of UL
1950 to UL 60950 to correlate with the lastest IEC
Standard Numbering)
-Original
Well, I'm glad you have your body armour on and properly adjusted. One
problem, when that load of napalm hits your going to wish it was only
bullets.
JOHN E. STUCKEY
EMC Engineer
Micron Technology, Inc.
Integrated Products Group
Micron Architectures Lab
8455 West Emerald St.
Boise,
Hello Group.. All interested should check this out..
George,
Look under standards open for private review:
http://www.ul.com/ite/
Wojo
Hello All
Global Engineering Documents does offer the draft version UL 60950
PROPOSED for $210.00. They said that an update document is expected to be
published sometime this year. Enjoy.
http://global.ihs.com/cgi-bin/detdoc.cgi?FRITTER=130536DOCID=7335720
Document Details
Robert and Group:
Just one further clarification:
UL Classification means that UL has evaluated a product to a specific
hazard (such as flame spread, smoke developed, slip resistance or
sanitation) or the product has been evaluated to another organization's
standard (such as an ASTM or ANSI
Unfortunately, there is a UL60950. I had the draft
copy, which was sent to me direct from UL, but not
the final copy. My draft was misplaced in a change
of companies. I have spoken to UL about getting
another copy.
I also understand that this standard went into effect
on April 1st, 2000.
Hi All,
Thank you all for your expert advice as usual. I feel significantly better
now that I know that we are all being subjected to the same requirements.
Brief Summary:
1. The CB Scheme requires all its participant labs and agencies to
update
their CB reports every 3 years, change or
To Ned and Group,
Read it for yourself on the UL homepage.
http://www.ul.com/auth/tca/v6n1/difference.htm
Regards,
Jay Johansmeier
Regulatory Engineer
3Com Corporation
Ned Devine ndev...@entela.com on 05/11/2000 10:07:26 AM
Please respond to Ned Devine ndev...@entela.com
Sent by:
Hi,
Ok, not quite. All UL marked products have conditions of acceptability in
some way, shape or form.
1. UL Listed mark goes on a product that is tested to a UL Safety Standard
(or safety guidelines) for that product category and can be used as an
entity unto itself (ie, a TV set). UL Listed
In defense of Intel (please wait a moment while I don my full body armor),
this is probably one of those things that only occurs on alternate rainy
Tuesdays when using certain specific brands of SDRAM.
Scott Lacey
-Original Message-
From: David Spencer
Compaq Computer is looking for an experienced EMC Engineer to join our staff
in Cupertino, CA.
Job Title: EMC Engineer
Job Description:
Compaq Computer, Business Critical Server Div., has two fully
equipped 10 meter semi-anechoic chambers to make an EMC
I was wondering why the Intel stock took a dive that more excessive than the
market dive.
The analysts probably recieved a heads up from some industry wag.
Jim Freeman
Paul J Smith wrote:
Barry,
Thanks for the heads-up. Article was also published by AP in today's Boston
Globe. The
Try Rich Fabina (301) 362-3021
Pryor McGinnis
c...@prodigy.net
www.ctl-lab.com
- Original Message -
From: Mike Morrow mi...@ucentric.com
To: EMC Society emc-p...@majordomo.ieee.org
Sent: Thursday, May 11, 2000 12:15 PM
Subject: Contact at the FCC for Part 15C
I'm looking for the name
Filed under Things that make you go hmmm.
Was this a major Product Verification screw up?
Or a carefully crafted marketing plan to increase demand for RDRAM?
Have a Great Day,
Dave Spencer
Oresis Communications
-Original Message-
From: Paul J Smith
The final version is not yet out, but you can apparently
purchase a proposed copy of UL60950 from Global
http://global.ihs.com/cgi-bin/detdoc.cgi?FRITTER=130536DOCID=7335720
http://global.ihs.com/cgi-bin/detdoc.cgi?FRITTER=130536DOCID=7335720
Kevin
Brent, in my experience with CB Cert Report updates ( I worked at ITS for 10+
years) , the procedures are clearly documented and are to be uniformly applied
(i.e. being a member of the Scheme means you'll follow the rules strictly, and
not apply your own interpretations).
The scheme rules
I'm looking for the name of an individual at the FCC who I can discuss the
current requirements of section 15.239 (transmission in the 88 to 108 MHz
bands). I'd like the name and phone number of an individual that someone on
this list has actually dealt with. I've tried calling the main FCC
-Original Message-
From: Barry Ma [SMTP:barry...@altavista.com]
Sent: Wednesday, May 10, 2000 4:13 PM
To: EMC-PSTC
Subject: Chip noise halts Intel 820 motherboard
http://dailynews.yahoo.com/h/zd/2510/tc/chip_noise_halts_intel_820_pro
duction_1.html
INTEL will
George,
There is no UL60950. Try UL1950, Third Edition.
George
george.sparacino%bostonacoustics@interlock.lexmark.com on 05/11/2000
11:50:58 AM
Please respond to george.sparacino%bostonacoustics@interlock.lexmark.com
To: emc-pstc%ieee@interlock.lexmark.com
cc:(bcc:
Chris:
If you mean entertainment systems that are part of the host aircraft, then
see:
ARINC Specification 628P1-2
ARINC Specification 628 Part 2
These cover Cabin Management and Entertainment Systems, Seat Interfaces
Peripherals.
Then there are ARINC 485, Parts 1 2, for Cabin Equipment
Ryan,
I work in the Semiconductor Manufacturing Equipment industry. We have heard
a bit about the Korean S-Mark lately, but not much about the Jun Mark (also
known as Choen Mark?).
Can you shed any light on how the S-mark and the Jun-mark are related?
Thanks in advance...
Lauren E. Crane
*
Has anyone seen a copy of UL60950 ? I am unable to find copy (or draft) for
review.
Thanks,
George
-Original Message-
From: Bandele Adepoju [mailto:badep...@jetstream.com]
Sent: Wednesday, May 10, 2000 8:38 PM
To: emc-p...@ieee.org; dan_mitch...@condordc.com
Subject: RE: Network Card
Hello,
I have a related question. It is indicated that one can get a CB Scheme
report to UL 1950.
UL 1950 paragraph 6.6 requires an overvoltage test. Who makes these
overvoltage testers?
Mat
Mathew Aschenberg
Agency Engineer
EchoStar Technologies Corporation
90 Inverness Circle East
Englewood,
Hi,
OK, I wasn't going to say anything, but.
1. A UL Listed product complies with all of the applicable
requirements. Usually from a standard.
2. A UL Recognized Component does not comply with all of the applicable
requirements. That is why they have Conditions of Acceptability.
Barry,
Thanks for the heads-up. Article was also published by AP in today's Boston
Globe. The following excerpt is from the site you noted
Regards, Paul J. Smith
Teradyne, Boston
Chip maker will replace motherboards using its 820 chip set due to noise caused
by simultaneous switching of
I believe the surge test is applicable. The zener avalanche diode barriers
provide protection to sensitive circuit components, but are the zeners
robust enough to withstand the surge?
If the signal line in question is one which, according to the standard, is
to be surge tested, the presence or
Hi,
We discussed this at the US National Committee of the IECEE on 19 April
2000. There is some confusion on the interpretation of this requirement.
It was explained, that an amendment is NOT a correction or a change to a
part number. An amendment is when new data/pages are added.
Using
Hello Tania and All Members,
Al is well said, but allow me to add one additional fact.
UL also Lists COMPONENTS which an electrician might use in the field; for
example closed-loop connectors, quick-disconnet connectors, splicing
connectors, fixture wiring, circuit breakers, outlet boxes, etc.
Can anybody point me in the direction of the regulations for EMI / EMC approval
for non-critical electronic equipment (entertainment systems) for use on
aircraft.
Thanks,
Chris.
---
This message is from the IEEE EMC Society Product Safety
Technical
Amund,
My feeling is that the test validates the protection. If devices are not
correctly rated for the application or applied correctly for the intended
use, the product may still be vulnerable.
Regards,
Don Umbdenstock
--
From: Westin, Amund[SMTP:amund.wes...@dnv.com]
Dear all,
I would like to ask you the following:
ยง1.5.6 of IEC 60950 3rd ED - Capacitors in primary circuits states
that:
A capacitor connected between 2 lines conductors of the primary
circuit, or between one line conductor and the neutral conductor,
shall comply with IEC 60384-14, sub-class
Dear Peter,
BG stands for Berufsgenossenschaften (don't ask*). I think the certification
mark
BG has a rather overweight ... uh thinness challenged i to the left of it.
The interlock was certified by the BG Institute for occupational safety in
Germany.
You may also see IEC/EN 60947-5-1
Hi Brent
I have experienced this problem too. As far as I know, if you want to
change a part that is listed in a CB Test Report, you have to have the
report changed by the issuing agency. Alternate equivalent parts are not
allowed (as per UL or CSA reports). I have been told that the only way
Hello members,
One question, what's common practise regarding surge test (EN61000-4-5
on signal lines) on lines which contains zener barriers ? Have a feeling
that the surge test is not applicable.
Comments ?
Best regards
Amund Westin
Det Norske Veritas
* amund.wes...@dnv.com
Jon,
Regarding point #1:
Think of it this way ...
UL Listing (UL logo) means system level, compliant
with some standard for a system under a lot of
conditions. Mostly along the lines of construction
AND performance.
UL UbackwardsR means component level, a restricted
compliance
Dear Group,
An interlock has BG Approval. Does anyone know what it is?
Peter Merguerian
Managing Director
Product Testing Division
I.T.L. (Product Testing) Ltd.
Hacharoshet 26, POB 211
Or Yehuda 60251, Israel
Tel: 972-3-5339022 Fax: 972-3-5339019
e-mail: pmerguer...@itl.co.il
website:
Hi Brent,
Subject: Actual requirement or money making scheme?
Definitely an actual requirement. (about the rest of your subject: No comment).
Decision:
Original CB Test Reports can be subjected to three (3) amendments only, after
which a new CB Test Report and associate CB Test Certificate
Brent,
I fully agree with you on your assumption. I think that Tania perhaps
misunderstood your question. You can have as many amendment to the original
CB report as you like. The main thing is that when sending the report to a
customer or to another agency, you must ensure that the original
Oooops!
Brent, I don't think you want an agency that has a more relaxed
interpretation of the CB Update requirement.
You will find that your CB report would not be accepted by other
countries/agencies. The CB Scheme requires all its participant labs and
agencies to update their CB reports
John,
The 'UbackwardsR' mark' is but one of many UL marks. This is the UL
Recognition Mark;-- there are also UL Listing Marks, UL Classification
Marks, and perhaps others that I have forgotten.And you are correct that
only UL can issue UL marks.However, UL can do this based on CB
Hi Jon:
UL has several different certification marks. The two
that most of us are concerned with are:
UL LISTING mark.
Comprised of four data:
* UL in a circle;
* the word Listed;
* the type of equipment or UL file number;
* the UL control number.
This mark is
You should self declare conformity (DoC) of the card
to FCC Class B. The FCC logo mentioned by David
must be supported on your card with the product model
or identification number.
Test configuration, in addition to that listed by
David below, should include a remote PC hookup for
data
http://dailynews.yahoo.com/h/zd/2510/tc/chip_noise_halts_intel_820_production_1.html
INTEL will replace motherboards using its 820 chip set due to noise caused by
simultaneous switching of signals.
Can anybody be more specific or just make a speculation by using EMC language?
Hello wise colleagues -
Just recently, we have decided to add some alternate components to one of
our CB Reports and was informed by a particular agency that we needed to
have a new CB Report issued since we already have 3 updates to the existing
report.
In the past, we were able to add an
--- umbdenst...@sensormatic.com wrote:
Friends,
We have been performing EMC measurements below 1
GHz. Now we need
to do measurements for 2.5 GHz systems to the 10th
harmonic (25 GHz).
What kind of coax (or other cable) have you found
suitable for
testing this
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