Fellow Networkers;
Does there exist information about the impedance (at 60 Hz) of typical
power line networks here in the US?
In Europe, I know they use a specified reference impedance (at 50 Hz)
for flicker testing, which is (0.24 + j0.15) Ohm for
Group and Mr. Tarnowski,
I don't know the answer for this question, but it lead me to other doubt
I have...
When read in my Receiver/Spectrum Analyzer: 50 Ohms, what is the
frequency range on which this impedance is valid? This question also
applies to impedance of loudspeakers (generally 8 or
Dear Listmembers,
I'm having a product tested to UL 1950/CSA 950 for the US and Canadian
market. This product is central office equipment powered by -48 vdc.
It sources -48 vdc to outside plant leads. The -48 is referenced to
ground, as needed for proper
Posted for: bwrig...@ktl.com
-Original Message-
From: Ben Wrigley [SMTP:bwrig...@ktl.com]
Sent: Friday, November 12, 1999 7:33 AM
To: 'TREG (E-mail)'
Cc: 'EMC-PSTC (E-mail)'
Subject: RE: Part 68 Training
Jody, Vic, Roy
KTL has a series of training
Hi Rick,
Try www.ero.dk (European Radiocommunications Office of the CEPT). They have
details of harmonised frequencies in Europe and also some national frequency
allocation tables.
Dave Wilson
EMC Manager
BABT Product Service
408-919-3745
-- Original Text --
From: Rick
Jody, Vic, Roy
KTL has a series of training courses specifically designed for manufacturers
of telecoms and IT equipment. We recently ran a successful FCC Part 68
training course at our facility in Hull (UK) for a number of manufacturers
and plan to run this again in Hull on February 10th 2000.
I always thought that the signatory of these type of documents was
signing as a representative of the corporation. I think some documents
require that an officer of the company sign for this reason. They
are assumed to be authorized to represent the corporation.
--
To All:
I have ISDB with Basic Rate Interface Line codig (2B1Q) for USA use. How
this will be compatible with European line coding standard
(4B3T). My interface is U interface.
Regards
Nezam Najafi
Compliance Engineer
Madge Networks, Inc
-
This message is coming from the emc-pstc
Dear Scott:
The product gets through, not based on your personal
representation, but rather on the company's representation. Because
companies are made up of living, breathing human beings, a company's
representation always takes the form the signature of a living,
breathing human
Hello Kevin,
What you need to show conformity with the EMC directive is to fulfil a
harmonized standard, if such exist. (If there is no such standard that can
be used-that is another question.)
Other standards are not in question, at least not for the authorities, so
fulfil EN 50130-4,
I presume you have a copy of PD 6608:1997 = CENELEC REPORT
R079-001:1996, Guide to achieving compliance with EC directives for
alarm systems. (I don't know if a more up-to-date version exists).
I bought this document to see what it said about safety, but it just
said EN 60950 shall apply.
I am
Scott
Replying to your comments to my comments a) to d) !!
a) I don't know about you, but a lot of us have considerable difficulty in
enforcing unwritten requirements as we have to prove them first - and
as I said, I have yet to see anything (apart from the current discussion)
to
Hi Vic,
We also have an interest in FCC part 68 courses. Do you have an address on TIA?
Best regards,
Roy Brands
Product Approval
Ericsson Business Mobile Networks BV
The Netherlands
Tel: +31 53 4505 938
Fax: +31 53 4505 504
Mob: +31 6 55 19 6605
-Original Message-
From: Victor L.
It's the function that signs, not the person, therefore this person should
add
it's function the the DoC.
Regards,
Gert Gremmen Ing.
== Ce-test, Qualified testing ==
Consultants in EMC, Electrical safety and Telecommunication
Compliance tests for European standards and ce-marking
Member of
Here Kevin
The difference is between
EN 50130-4 for components of
EN 54 ... for systems as a whole
The latter deals with requirements of reliability and safety for the whole
installation
the earlier deals with protection of the frequency spectrum (EMC directive)
and functional
Rich,
Your story reminded me of a strange, but true event, that happened when
I was still in the UK. I was living near a small town called Blythe
Bridge, where the railway line crosses the main street at a very flat
angle. This meant that the length of the crossing barriers was long,
All,
If a regulation changes during the life of the product, a re-test and change
to the DoC might well be in order, regardless of who signed the original, or
when.
As an example - EN 50082-1:1992 is the old generic immunity standard for
everything except heavy industrial equipment under the
Greetings,
I am hoping the group can help me with this one.
Is there an address on the Internet that has a list of harmonized
transmitter frequencies for Europe?
Thank you.
Rick Linford
-
This message is coming from the emc-pstc discussion list.
To cancel your subscription, send
18 matches
Mail list logo
