Tuesday, April 12, 2016

The FCC and Open Source Hardware


Electromagnetic Spectrum: the United States, the FCC tried to use the same resources to hundreds or thousands of businesses are responsible for maintaining harmony within. The upside to this is that we can (usually) things like WiFi, cellular phones, police radio, baby monitors, etc. depend to act as and when we need them. The downside is that each of us to do business in the United States who want to sell electronics and electronic devices creates a hurdle.


The FCC and Open Source Hardware
The FCC and Open Source Hardware

Many myths, misconceptions, and misunderstandings are to comply with the law. We've done a lot of work recently to try and clear rules and how they apply to SparkFun as well, and other businesses. Here is what people mean well FCC rules (and does not) that may help to understand their business or hobby is a list of Frequently Asked Questions.

What the FCC has to do with electronics?

Federal Communications Commission (FCC) established by the Communications Act 1934, their role as regards the electronics in the United States and its holdings of protecting the radio spectrum. This is a different application ranges and the dividing up of the radio spectrum is achieved by assigning each range, and the persons or entities within the ranges of the various forms of work permit or authorization to do so only by the need to try to achieve.

More simply, the FCC, doing what and where a central Clearinghouse serves as a valuable common resource (radio spectrum) wants to manage. Any electronic device that has the potential to interact with resources, and the device must meet the constraints of FCC- legally sold and used in the United States, there are rules.

This is what it means for a hobbyist?
Very little, in fact, depending on what you are doing. FCC is a hobbyist with no test for personal use to create a single design that allows five devices. FCC If you (or anyone else) spectrum interference is a matter of communication, immediately stop using the machine, do not use it again, and you should be OK. Stick ISM band (13.56 MHz, 27.12MHz, 40.68MHz, 915 MHz, 2.45GHz, and 5.8GHz, +/- a bit of each), add
The FCC and Open Source Hardware
The FCC and Open Source Hardware

The open source hardware for a small manufacturer What does it mean?

Potential, a lot, depending on what you're doing. There is an exemption, but not much. Finally, if you are an importer or seller of electronic products, the US, the FCC should be aware that the laws relating to consent and are required to comply. In almost all cases, the device Title 47 CFR Part 15 guidelines by small OSHW companies mentioned in the subject being produced.
Even devices that do not use the radio transmitter?

Yes, the right (or wrong) circumstances, the (low-range kHz, above) is a relatively high-speed clock, the device is probably no other unwanted interference from local produce stands devices. Do not use the radio transmitter device "unintentional radiator" is referred to as, and less than it is for those testing times for intentional radiators. Thus, the device can not escape the FCC's approval must be obtained prior to the US market.
What I can do to avoid costly tests and still comply with the law?

Limit yourself to only sell subassemblies, or the list of products exempt from the device itself is limited: There are two ways to avoid testing. Relieved to be in pretty solid product categories, and CFR47 are given in Section 15.103

  • A digital devices, including motor vehicles and aircraft exclusively utilized in any transport vehicle.
  • A digital system is an electronic control or power by a public utility or used as an instrument utilized in industry. Public utility building or large room dedicated only until the expiration of a utility owned or leased and installed in a customer's facility is not applicable to the equipment.
  • A digital industrial, commercial, or medical test equipment used as instruments.
  • A device is a digital device, such as microwave oven, dishwasher, clothes dryer, air conditioning (central or window), and utilized exclusively
  • Specialized medical digital devices (generally or under the supervision of a licensed health care practitioner of the use) is used in the patient's home or health care facility. Non-specialized medical devices, ie, devices marketed for public use through the retail channel, are not exempt. This exemption digital record-keeping or used for any purpose not directly connected with treatment is not applicable to the device.
  • Digital devices have a power consumption not exceeding 6 NW.
  • Joystick controller, such as a mouse or similar device, to be used with digital devices, but you need to convert the signal into a format or a simple circuit contains non-digital circuits (eg, analog to digital conversion on an integrated circuit) is seen as a passive add-on devices, subject to the approval requirements of the technical standards or equipment not directly themselves.
  • Both digital device that generates the highest frequency and the highest frequency of 1,705 MHz, and less use of AC power line, which does not work when connected to AC power lines or there is provision for operation. That includes digital device, or battery eliminators, AC adapter or battery charger to be used during charging to ensure that the connection to the AC power line or indirectly, by another device which is connected to the AC power line operations which permit the receipt of their ability, fall under this exemption No.
Equipment unless the parties responsible must keep in mind that all devices meet the criteria for exemption of equipment containing more than one device is not exempt from this part of the technical standards. The device includes only one qualifies for the exemption, then the rest of the equipment will comply with any applicable regulations. A device multiple roles and functions of all those who do not meet the criteria for exemption, if the devices do not qualify for the exemption to include under.

Tell me more about sub assemblies.
Testing methods for avoiding more easily access a "sub-assembly" are defined to be in. Subassemblies 15.101e title is defined in Section 47:

  • Subconjuntos para Dispositivos digitales no estan Sujetos a las Normas Técnicas En Esta instancia de parte, un Menos Que se comercializan Como parte de la ONU Sistema En El Que Caso de Que El Sistema Resultante Dębe Cumplir con la normativa procede. Subconjuntos INCLUYEN:
  • Los Dispositivos Que se INCLUYEN Unicamente Dentro de la caja de Alojamiento del Dispositivo digital, una Excepción de: Fuentes de Alimentación utilizadas en los Ordenadores Personales; Dispositivos Incluidos En La Definición de la ONU Dispositivo Periférico en §15.3 (r); y Las placas de CPU de Ordenador personal, Tal Como se definen en §15.3 (bb);
  • Las placas de CPU, SE de Como definir en §15.3 (bb), Distintos de los utilizados en Ordenadores Personales, Que se comercializan En un Suministro de energía o el recinto; y
  • Fuentes de Alimentación conmutadas Que se comercializan por Separado y Son UNICAMENTE PARA USO DE UN interno Dispositivo Que No ONU mar Ordenador personal.
Las placas de CPU se definen en la section 15.3 (bb):
  • Placa de la CPU. Una placa de circuito microprocesador Que Contiene un, o Circuito de determinacion de frecuencia para el microprocesador, La Principal Función de los Cuales Es Para ejecutar la programación cuándo proporcionada por el usuario, Pero No incluyendo:
  • Una placa de circuito Que Contiene Sólo un microprocesador Destinado una Operar Bajo el mando primario o instrucción de la ONU microprocesador externo PARA UN Tablero de tal circuito; o
  • Una placa de circuito Que Es Un Controlador Dedicado PARA UN Almacenamiento o Dispositivo de entrada / salida.
Que Así, basicamente, si Usted PUEDE Permanecer Dentro De Estas EL DIRECTRICES, un Continuación, la prueba esta en los Hombros de la persona o entidad f Integrar el Dispositivo En Su Producto final. Por Supuesto, en El caso de la ONU aficionado, ESO SIGNIFICA Que Ellos no Tienen Que Hacer Nada Más Que Cumplir con las Buenas Prácticas de Ingeniería y Dejar de funcionar si se producen interferencia.

What about toys?
Islam in section 15.3 (p) is defined:
  • Kit. Electronic parts, typically a schematic diagram or a printed circuit board, in accordance with the instructions provided with any number together, the result is a device of this part of the regulation, no additional parts are required to complete, even if the assembly.
This time it is about making the rules clear to us 100%. Section 15.25, "the TV interface device" for having to deal with toys, but OET Bulletin 61 to indicate all the rules laid out in section 15.25 of toys (see the last line of the last page), seems to be generalizable to include. However, in an order released on 31 April 2012 and the consent decree (File No. EB-06- or -388), part II, paragraph 2, indicates that the toys do not normally require authorization, so long as they are sold unassembled state. The same file a memorandum opinion and order, was released on April 30, 2008, indicates that the kit "in Section 15.3 (p), meaning" a device in which the integrated circuits and circuit boards to be installed in a plastic case is not a "law", the FCC clearly Engineering a small amount of experience will be involved in an assembly kit is expected to be considered in a kit. In addition, am1000 rangemaster.com a post, an uncited FCC to "clarify" the rules states that compliance with the toy buyer / assembler, not the seller or the kit on the shoulders of producers. Finally, OET Knowledge Base article 927445 says nothing regarding unintentional radiators, but indicates that "... certification (whether or not marketed as a kit) with respect to the device, must be certified under Part 2. Subpart J."
We want to clarify this point, and in the future, when treatment is available, such as updating the document, but at this point, SparkFun FCC testing will be done over the phone.

"Development tools" to escape from the law?
No rules, no discount is applied to specially developed equipment. In addition, the device can be purchased at the public, which is rather more relaxed "class" of more rigid limits "Class B" will comply with the emission limits.

How much does it cost to obtain approval under the FCC rules?
That depends on your device. Conformity- verification or declaration which is to say a device which require to be tested for unintended radiators- around $ 1000. A report is usually around $ 500, which may be required for an additional fee. If cost is not an approved module certification for intentional radiators are used, more than $ 10,000- $ 12,000 is like. It may be that you will fail, of course, that will require retesting.

Some transmitters on them to come with an FCC ID. I also use this device to escape from the FCC approval testing to achieve?
Not entirely. Although it's expensive certification process has lowered the bar, you can still make sure that your product is not responsible for other radio frequencies emitted. In short, you need to check it out so that it was an unintentional radiator.
FCC approval for the device, which has the label instructions?
And labeling requirements of Sections 15.19 2,925 contracts. Otherwise, the label for the device with the necessary guidelines to meet FCC OET institutions Knowledge Base article 784748. One thing that is not mentioned in the case, including the implication of your product- is a certified module or modules will be visible FCC ID label must be a product of the "FCC ID is: xxx- yyyyyy".
Perhaps the failure of the entire system to a device correctly labeled one of the highest risk points. A bureau agent applied to a device which, in their estimation, the label should be seen, then, that the device can not be called in question would naturally be much higher.

Where can I go for more information?
Title 47 of the horse's mouth full of straight text-, but the information page warned- be many hundreds are here, and it is the most horrible useful.
FCC OET Bulletin online- Office of Engineering and Technology published a bulletin clarifying the rules after a certain time. This list is useful for more than a few comparatively.
The OET OET KDB- also "Frequently Asked Questions" list, containing a sort of a knowledge database maintenance; Again, the signal-to-noise ratio for our area of ​​interest is fairly poor.
The Enforcement Division of the recent enforcement actions Violations- marketing tools and what they are currently working against the logic they use to provide useful guidelines and also maintains a list.
The OET Authorization- equipment is in the process of approval is a useful website. In addition, it contains links to other useful sites.

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