Hi everyone: Is there a standard interpretation (e.g. in EN60950) that
allows or disallows the bridging of a Reinforced isolation boundary by
resistors? This stretches the term isolation a bit, but my feeling is
that isolation really involves dielectric withstand and limitation of
leakage
Hi Mark:
Additional control items under ITE are :
Pocket Size data recording machines, Calculators with external power
connector, Internal Hard Disk Drive, Internal Floppy Drive, Internal
Optical, Magnetic drives, Automatic Teller Machines, Computer Main Board
and Add-on cards etc Above
Greetings all,
Does anyone have information on standard JEIDA-52? One of our OEM customer is
requesting that we comply with JEIDA-52/CISPR24. Is their and difference
between JEIDA-52 and CISPR24. IS JEIDA-52 a publish standard. I was not able to
find any information JEIDA WEB site.
Thank you
Greetings!
Can anyone comment on the rationale for the difference in surge protection
requirements between Article 820-33 (Community Antenna Television and Radio
Distribution Systems) and Article 830-30 (Network-Powered Broadband
Communications Systems)?
In Article 820, it says that where
Greetings EMC Professionals!
The Orange County Chapter of the IEEE EMC Society proudly presents EMC
Fest '99, a Colloquium and Exhibition on Design for EMC and EMC
Troubleshooting Techniques.
The festivities will be presented on October 4th at the DoubleTree Hotel in
Costa Mesa, California.
On the same topic as 'sweeper only' testing, does anyone have experience with
log amplifier ICs?
Analog Devices makes an AD8307, touting DC-500MHz 90dB dynamic range, and an
input range of +16dBm to -72dBm. Data at
http://products.analog.com/products/info.asp?product=AD8307
I realize this may
By soak I am assuming you are talking burn-in? If not quit reading here.
Don't think there is a standard but it is a reliability/manufacturing dance.
Burn-in is one way to reduce infant failure both on the manufacturing floor
and into the constant failure rate of the ol' bathtub wear-out curve.
Group,
Can anyone provide the details on Taiwan's proposed EMC compliance requirements
for ITE, effective July 2000.
Regards, Ravinder
Email: ajm...@us.ibm.com
***
Always do right. This will gratify some people and
Dear group,
This issue might have been discussed in the past, however, I couldn't find
useful
references in the group's archive.
Here is the question:
An installation is assembled and taken in service only on the customer's site,
in
Europe. Parts composing the installation do not carry the CE
Delta, Schaffner, Curtis, Spectrum Control, Eichhoff, and a few others all
offer a double pole fused RFI Filter Assembly. My company always uses
double pole fused AC entries for our CE compliant equipment.
Douglas BestCompliance
Testing by a certified lab is not mandatory; however, if your test results
are ever reviewed, there is a chance that they could be challenged. We have
performed our own tests on all of our products. Some of our files have been
reviewed and none have been challenged. I would be interested in
Jim,
If you have a sweeper then you can get away without a spectrum analyser
providing you're not looking for deep stopband rejection. Just use a broadband
diode detector (properly terminated) hooked up to a scope with the X axis
synchronised to the sweeper. There was a time when this was the
I recalled that this subject had been discussed in depth at a BSI
committee meeting, but had to dig back to 1995 to find it.
The BSI committee stated, in response to any enquiry such as yours : -
---
Please be aware that
At the low end the models are very, very good. Above 10MHz you need to
really get imaginative about modeling the parasitics, which include the
cabling *and* the environment (It's surprising the effect a shielded room
can have on your readings)
Note at the low end to be sure to include energetic
Jim:
I'll thread my comment into your last post. I'm still making the
assumption that you want to stay with the cheapest reasonable solution, and
not throw tens of kilobucks at the problem. That means a used sweeper and SA
(maybe from a rental house or even from a surplus
Alan,
We have recently had an EN60950 safety report from a local consultant on a
piece of IT equip we designed which commented that a fuse may be required
on both the live and neutral of the mains input for certain countries in
Europe.
Fuses on both the live and neutral of the mains input
C'mon Group,
There must be more than one of you doing series production testing?
I am struggling to find hard data relating to the percentage of products
tested per batch, and the frequency of testing in accordance with Section 7
of EN 55022.
Is there anyone out there with a Gameplan?
Cheers,
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