John, I would love that to be the answer but I keep getting beat up by
the various TUV's over this issue. It pretty much matches the comments made
by Richard. We usually get through it with much heated debate and staring at
the specifications sheets. Many, many LED vendors don't submit to the IEC
for confirmation. (My opinion they shouldn't have to give, the power, the
non-coherent light, the diffusing and a bunch of other stuff) I am not an
expert at light transmission sources so I could be missing some pretty
salient points here). Unfortunately, the guys reading the European standards
at the TUV shops don't have the descretion to waive the requirement because
it is imposed by the standards writting committees so they are stuck with
trying to enforce it.
Admittidly I haven't read the complete standard to see if the wording
you suggest actually exists or how it can be use to get by the really low
powered LED IEC 825 requirements. If you could forward the scope of the
standard and the section you believe relieves this from the standard LED, I
would be eternally grateful. We have ordered the standard but it hasn't
arrived and I am trying once again to get a procudt with LED's through the
maze.
Thanks
Gary
-----Original Message-----
From: John Juhasz [mailto:jjuh...@fiberoptions.com]
Sent: Thursday, March 09, 2000 1:30 PM
To: 'wo...@sensormatic.com'; emc-p...@majordomo.ieee.org
Subject: RE: IEC 825 and Light Emitting diodes.
Richard,
I don't believe that the standard applies to LED indicators instead it is
for
'LED-based optics' used in fiber optic transmission.
John Juhasz
Fiber Options
Bohemia, NY
-----Original Message-----
From: wo...@sensormatic.com [ mailto:wo...@sensormatic.com
<mailto:wo...@sensormatic.com> ]
Sent: Thursday, March 09, 2000 2:16 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: IEC 825 and Light Emitting diodes.
Some of our ITE products have LED indicators. A well know European based
agency has evaluated them based upon the manufacturer's specifications and
our circuit designs. Yes, fault conditions must be considered but usually
there is sufficient information in the data sheets to indicate that the
device is compliant at the higher voltage. In a couple of cases, we have
had some difficulty due to the lack of sufficient information on the data
sheet; and we had to obtain more information from the manufacturer. We have
never had to perform emission testing, and we have not been instructed to
include the laser marking even though we display the agency's compliance
mark.
Richard Woods
----------
From: ricklinf...@phobos.com [SMTP:ricklinf...@phobos.com]
Sent: Thursday, March 09, 2000 1:33 PM
To: emc-p...@majordomo.ieee.org
Subject: IEC 825 and Light Emitting diodes.
Hi group,
When evaluating IEC 825-1 for fiber optic LAN transceivers I came
across
requirements for LED's. I have known that the EU had some
requirements for
LED emission. Being on the US side of the pond I have not seen how
it is
applied.
Are manufactures doing fault testing on LED to ensure the class 1
levels
are maintained?
Are manufacturers labeling products with LED's (this covers just
about
every electronic product I know of) with the "CLASS 1 LED PRODUCT"
as
required in 5.12 of IEC 825?
Rick Linford
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