Chapter and verse -
§15.103 Exempted devices. - The following devices are subject only to the
general conditions of operation in §§15.5 and 15.29 and are exempt from the
specific technical standards and other requirements contained in this part.
The operator of the exempted device shall be required to stop operating the
device upon a finding by the Commission or its representative that the device
is causing harmful interference. Operation shall not resume until the
condition causing the harmful interference has been corrected. Although not
mandatory, it is strongly recommended that the manufacturer of an exempted
device endeavor to have the device meet the specific technical standards in
this part.
(a) A digital device utilized exclusively in any transportation vehicle
including motor vehicles and aircraft.
(b) A digital device used exclusively as an electronic control or power
system utilized by a public utility or in an industrial plant. The term
public utility includes equipment only to the extent that it is in a dedicated
building or large room owned or leased by the utility and does not extend to
equipment installed in a subscriber's facility.
(c) A digital device used exclusively as industrial, commercial, or
medical
test equipment.
(d) A digital device utilized exclusively in an appliance, e.g.,
microwave
oven, dishwasher, clothes dryer, air conditioner (central or window), etc.
(e) Specialized medical digital devices (generally used at the
direction of
or under the supervision of a licensed health care practitioner) whether used
in a patient's home or a health care facility. Non-specialized medical
devices, i.e., devices marketed through retail channels for use by the general
public, are not exempted. This exemption also does not apply to digital
devices used for record keeping or any purpose not directly connected with
medical treatment.
(f) Digital devices that have a power consumption not exceeding 6 nW.
(g) Joystick controllers or similar devices, such as a mouse, used with
digital devices but which contain only non-digital circuitry or a simple
circuit to convert the signal to the format required (e.g., an integrated
circuit for analog to digital conversion) are viewed as passive add-on
devices, not themselves directly subject to the technical standards or the
equipment authorization requirements.
(h) Digital devices in which both the highest frequency generated and
the
highest frequency used are less than 1.705 MHz and which do not operate from
the AC power lines or contain provisions for operation while connected to the
AC power lines. Digital devices that include, or make provision for the use
of, battery eliminators, AC adaptors or battery chargers which permit
operation while charging or that connect to the AC power lines indirectly
obtaining their power through another device which is connected to the AC
power lines, do not fall under this exemption.
(i) Responsible parties should note that equipment containing more
than one
device is not exempt from the technical standards in this part unless all of
the devices in the equipment meet the criteria for exemption. If only one of
the included devices qualifies for exemption, the remainder of the equipment
must comply with any applicable regulations. If a device performs more than
one function and all of those functions do not meet the criteria for
exemption, the device does not qualify for inclusion under the exemptions.
Happy reading.
Ghery S. Pettit
Intel Corporation
From: [email protected]
[mailto:[email protected]] On Behalf Of Wan Juang Foo
Sent: Monday, May 10, 2004 8:59 AM
To: [email protected]
Subject: excluded from FCC and where did they wrote it? RE: Clocks and
calculators
Dear all ,
(I think I am opening a can of worms ... )
The earlier thread get me thinking about those items that are excluded
(from FCC testing and now DOC) even if it "...generated and uses timing
pulses at a rate in excess of 9000 pulses per second and uses digital
techniques....".
Can some of you reconfirm what was long held and believe to be true.
The list includes:
Wrist Watches, (... if it is small enough to be worn on a wrist....)
Pocket Calculators, (or be put into a pocket...)
Coffee Makers... (or that it trully makes coffee)
AFAIK, these things was "exempted from testing to FCC standards" because
they have not known to cause any EMC problem in the past.
Please add to this list. I have for years never to seek out the reference
and it is now time to hear from you quote the chapter and 'verse' where the
FCC state that these are exempted....
sincerely, :-)
Tim Foo
"Sykes, William Thomas (Tom)" <[email protected]> wrote on 08/05/2004 07:27
AM
All:
Please refer to the "Guidelines on the application of Directive 89/336/EEC"
at
http://europa.eu.int/comm/enterprise/electr_equipment/emc/guides/chapfive.htm
.
In Section 5.4 "Additional practical criteria (accepted by consensus) to
exclude equipment from the scope of the EMC Directive."
5.4.1 "Practical criteria and illustrative examples" it states "Although it
should in principle be considered as within the scope of the Directive, the
following apparatus can be considered as exempted, based upon both of the
following criteria, which have also been taken in account into the
development of EMC standards: ...Other equipment fulfilling the criteria
above:... Quartz wrist watches without additional functions (e.g. radio
receivers)."
So it appears that quartz watches are exempt by their own words, but if you
have additional functions that involve a clock (oscillator), I would at
least do a prescreen to see what kind of emissions were present.
William T. Sykes
Lucent Technologies EH&S
Product Safety/Conformance Manager
Room 7B-516A
600-700 Mountain Avenue
Murray Hill, NJ 07974-0636
(908)582-6937
[email protected] wrote on 08/05/2004 03:21 AM
Subject: Clocks and calculators
Dear Group,
I want to ask you, if battery calculators and battery quartz clocks and
watches (advertise gadgets) should be tested according to EMC directive?
And
if not, why?
Best regards
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This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ieee-pses.org/
To cancel your subscription, send mail to:
[email protected]
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: [email protected]
Dave Heald: [email protected]
For policy questions, send mail to:
Richard Nute: [email protected]
Jim Bacher: [email protected]
All emc-pstc postings are archived and searchable on the web at:
http://www.ieeecommunities.org/emc-pstc
