John, it may well be that the intention was to only include LED's for optic
fiber use, but the definition of "light emitting diode" in the standard
includes all types of LEDs.
Richard Woods
----------
From: John Juhasz [SMTP:[email protected]]
Sent: Thursday, March 09, 2000 4:30 PM
To: '[email protected]'; [email protected]
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: [email protected] [ mailto:[email protected]
<mailto:[email protected]> ]
Sent: Thursday, March 09, 2000 2:16 PM
To: [email protected]
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: [email protected] [SMTP:[email protected]]
Sent: Thursday, March 09, 2000 1:33 PM
To: [email protected]
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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