FCC ID: 2ADHKWINC3400U IEEE 802.11 b/g/n Network Controller Module with Integrated Bluetooth Low Energy

Regulatory Compliance Information ATWINC3400-MR210UA Regulatory Compliance Information Revision 0.2 June 2018 Revision 0.2 (06/2018) Preliminary Regulatory Compliance Information This document covers the Regulatory Compliance information which will be part of the ATWINC3400-MR210UA Module datasheet and related documents shared with customers. 1 Preliminary Revision 0.2 (06/2018) Regulatory Compliance Information 1.1 Antenna Considerations:

Table 1-1 provides the list of Approved antennas along with the manufacturer and part number details. Slno. P/N Vendor Antenna Gain @

2.4GHz Band 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pulse Electronics Corporation 2 dBi W3525B039 RN-SMA-4 Microchip RFDPA870920IMLB301 WALSIN RFPCA381013IMAB701 WALSIN RFPCA381035IMAB701 WALSIN Aristotle RFA-02-3-C5H1 Aristotle RFA-02-5-C7H1 RFA-02-P33 Aristotle Molex 1461530100 Microchip RN-SMA-S Microchip RN-SMA-7 RFA-02-5-F7H1 Aristotle Aristotle RFA-02-D3 Aristotle RFA-02-L2H1 Aristotle RFA-02-P05 RFA-02-C2M2 Aristotle 2.2 dBi 1.84 dBi 4.50 dBi 2.7 dBi 3 dBi 5 dBi 2 dBi 3 dBi 0.56 dBi 5 dBi 5 dBi 2 dBi 2 dBi 2 dBi 2 dBi Antenna type PCB Dipole Dipole-DB PCB PCB Dipole Dipole-Long PCB PCB/Flexi Dipole-short Dipole-Long Dipole-Long Dipole-no encl. Dipole PCB Dipole 1.2 ATWINC3400-MR210UA Usage Instructions under Modular Approval Table 1-2: Features and supported modes of operation Frequency Range WiFi: 2.400 GHz ~ 2.4835 GHz (2.4 GHz ISM Band) BLE: 2.402 GHz to 2.480 GHz Number of Channels WiFi: 11 for North America BLE: 40 The availability of some specific channels and/or operational frequency bands are country dependent and should be programmed at the Host product factory to match the intended destination. Regulatory bodies prohibit exposing the settings to the end user. This requirement needs to be taken care of via Host implementation. The Host product manufacturer must ensure that the RF behavior adheres to the certification (e.g. FCC, ISED) requirements when the module is installed in the final Host product. 2 Preliminary Revision 0.2 (06/2018) Regulatory Compliance Information 2.1 United States The ATWINC3400-MR210UAmodules has received Federal Communications Commission (FCC) CFR47 Telecommunications, Part 15 Subpart C Intentional Radiators single-modular approval in accordance with Part 15.212 Modular Transmitter approval. Singlemodulartransmitter approval is defined as a complete RF transmission sub-assembly, designed to be incorporated into another device, that must demonstrate compliance with FCC rules and policies independent of any host. A transmitter with a modular grant can be installed in different end-use products (referred to as a host, host product, or host device) by the grantee or other equipment manufacturer, then the host product may not require additional testing or equipment authorization for the transmitter function provided by that specific module or limited module device. The user must comply with all of the instructions provided by the Grantee, which indicate installation and/or operating conditions necessary for compliance. A host product itself is required to comply with all other applicable FCC equipment authorization regulations, requirements, and equipment functions that are not associated with the transmitter module portion. For example, compliance must be demonstrated: to regulations for other transmitter components within a host product; to requirements for unintentional radiators (Part 15 Subpart B), such as digital devices, computer peripherals, radio receivers, etc.; and to additional authorization requirements for the non-transmitter functions on the transmitter module (i.e., SDoC or Certification) as appropriate (e.g., Bluetooth and Wi-Fi transmitter modules may also contain digital logic functions). 2.1.1 Labeling and User Information Requirements The ATWINC3400-MR210UA module has been labeled with its own FCC ID number. If the FCC ID is not visible when the module is installed inside another device, then the outside of the finished product into which the module is installed must display a label referring to the enclosed module. This exterior label can use wording as follows:

For the ATWINC3400-MR210UA:

Contains Transmitter Module FCC ID: 2ADHKWINC3400U or Contains FCC ID: 2ADHKWINC3400U This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. A user's manual for the finished product should include the following statement:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver 3 Preliminary Revision 0.2 (06/2018) Regulatory Compliance Information Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio/TV technician for help Additional information on labeling and user information requirements for Part 15 devices can be found in KDB Publication 784748, which is available at the FCC Office of Engineering and Technology (OET) Laboratory Division Knowledge Database (KDB) https://apps.fcc.gov/oetcf/kdb/index.cfm 2.1.2 RF Exposure All transmitters regulated by FCC must comply with RF exposure requirements. KDB 447498 General RF Exposure Guidance provides guidance in determining whether proposed or existing transmitting facilities, operations or devices comply with limits for human exposure to Radio Frequency (RF) fields adopted by the Federal Communications Commission (FCC). From the FCC Grant: Output power listed is conducted. This transmitter is restricted for use with the specific antenna(s) tested in this application for Certification. In the end product, the antenna(s) used with this transmitter must be installed to provide a separation distance of at least 6.0 cm from all persons and must not be co-located or operation in conjunction with any other antenna or transmitter. User and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying the RF exposure compliance. 2.1.3 Approved Antenna Types To maintain modular approval in the United States, only the antenna types that have been tested shall be used. It is permissible to use a different antenna, provided the same antenna type and antenna gain

(equal to or less than) is used. An antenna type comprises antennas having similar in-band and out-of band radiation patterns. Antennas approved for ATWINC3400-MR210UA module with the antenna types are listed in Table 1-1. 2.1.4 Helpful Websites Federal Communications Commission (FCC): http://www.fcc.gov FCC Office of Engineering and Technology (OET) Laboratory Division Knowledge Database (KDB):

https://apps.fcc.gov/oetcf/kdb/index.cfm 4 Preliminary Revision 0.2 (06/2018) Regulatory Compliance Information 3.1 Canada The ATWINC3400-MR210UA module has been certified for use in Canada under Innovation, Science and Economic Development Canada (ISED, formerly Industry Canada) Radio Standards Procedure

(RSP) RSP-100, Radio Standards Specifi- cation (RSS) RSS-Gen and RSS-247. Modular approval permits the installation of a module in a host device without the need to recertify the device. 3.1.1 Labeling and User Information Requirements Label Requirements (from RSP-100 Issue 11, Section 3): The host device shall be properly labeled to identify the module within the host device. The Innovation, Science and Economic Development Canada certification label of a module shall be clearly visible at all times when installed in the host device, otherwise the host device must be labeled to display the Innovation, Science and Economic Development Canada certification number of the module, preceded by the words Contains, or similar wording expressing the same meaning, as follows:

For the ATWINC3400-MR210UA module:

Contains transmitter module IC: 20266-WINC3400UA User Manual Notice for License-Exempt Radio Apparatus (from Section 8.4 RSS-Gen, Issue 4, November 2014): User manuals for license-exempt radio apparatus shall contain the following or equivalent notice in a conspicuous location in the user manual or alternatively on the device or both:

This device complies with Industry Canada license exempt RSS standard(s). Operation is subject to the following two conditions:

(1) This device may not cause interference, and

(2) This device must accept any interference, including interference that may cause undesired operation of the device. Le prsent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorise aux deux conditions suivantes:

(1) l'appareil ne doit pas produire de brouillage, et

(2) l'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible d'en compromettre le fonctionnement. Transmitter Antenna (From Section 8.3 RSS-GEN, Issue 4, November 2014): User manuals, for transmitters shall display the following notice in a conspicuous location:

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. Conformment la rglementation d'Industrie Canada, le prsent metteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou infrieur) approuv pour l'metteur par Industrie Canada. Dans le but de rduire les risques de brouillage radiolectrique l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonne quivalente (p.i.r.e.) ne dpasse pas l'intensit ncessaire l'tablisse-ment d'une communication satisfaisante. Immediately following the above notice, the manufacturer shall provide a list of all antenna types 5 Preliminary Revision 0.2 (06/2018) Regulatory Compliance Information approved for use with the transmitter, indicating the maximum permissible antenna gain (in dBi) and required impedance for each. 3.1.2 RF Exposure All transmitters regulated by ISED must comply with RF exposure requirements listed in RSS-102 - Radio Frequency (RF) Exposure Compliance of Radio communication Apparatus (All Frequency Bands). This transmitter is restricted for use with a specific antenna tested in this application for certification, and must not be co-located or operating in conjunction with any other antenna or transmitters within a host device, except in accordance with Canada multi-transmitter product procedures. The installation of the transmitter must ensure compliance is demonstrated according to the ISED SAR procedures. 3.1.3 Helpful Web Sites Industry Canada: http://www.ic.gc.ca/

6 Preliminary Revision 0.2 (06/2018)

Permissive change letter Date: 2022-07-26 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject: C2PC for FCC ID: 2ADHKWINC3400U Dear Examiner, This is to request a Class II permissive change for FCC ID: 2ADHKWINC3400U originally granted on 06/18/2018. This application covers the component change of crystal oscillator details are captured in the exhibits (Schematic, Change Parts List). It is compliant with KDB 178919 III D standards. Sincerely, By:

(Signature) Steve Caldwell / Vice President

(Print name)

Date: 2022.07.26 Subject: Confidentiality Request for FCC ID: 2ADHKWINC3400U and IC: 20266-WINC3400UA Pursuant to FCC 47 CRF 0.457(d) and 0.459 and IC RSP-100, Section 10, the applicant requests that a part of the subject FCC/IC application be held confidential. Type of Confidentiality Requested Short Term Short Term Short Term Short Term Short Term Short Term Short Term Short Term Permanent Permanent Permanent Permanent Permanent Permanent n/a n/a Exhibit Block Diagrams Internal Photos ***

Operation Description/Theory of Operation Tune-Up Procedure Schematics Users Manual***

Test Setup External Photos _Microchip Technology Inc._ has spent substantial effort in developing this product and it is one of the first of its kind in industry. Having the subject information easily available to "competition" would negate the advantage they have achieved by developing this product. Not protecting the details of the design will result in financial hardship. Permanent Confidentiality:

The applicant requests the exhibits listed above as permanently confidential be permanently withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. (*** PAG only) Short-Term Confidentiality:

The applicant requests the exhibits selected above as short term confidential be withheld from public view for a period of _180_ days from the date of the Grant of Equipment Authorization and prior to marketing. This is to avoid premature release of sensitive information prior to marketing or release of the product to the public. Applicant is also aware that they are responsible to notify TUV Rheinland in the event information regarding the product or the product is made available to the public. TUV Rheinland will then release the documents listed above for public disclosure pursuant to FCC Public Notice DA 04-1705. Sincerely, By:

__ _ _____ Steve Caldwell______

(Signature/Title)

(Print name) MS-0044715 Page 1 of 1 Revision 0

Applicant/Grantee Microchip Technology Inc. FCC ID:

2ADHKWINC3400U X Request for Modular Approval Request for Limited Modular Approval Requirements Device Conditions Comply (Y/N) Section 15.212 Modular Transmitters /

Single Modular Approval Requirements The radio elements must have the radio frequency circuitry must be shielded. Physical/discrete and tuning capacitors may be located external to the shield, but must be on the module assembly. The module shall have buffered modulation/data input(s) (if such inputs are provided) to ensure that the module will comply with the requirements set out in the applicable RSS standard under conditions of excessive data rates or over-modulation. The module shall have its own power supply regulation on the module. This is to ensure that the module will comply with the requirements set out in the applicable standard regardless of the design of the power supplying circuitry in the host device which houses the module. Requirements set out in the applicable standard regardless of the design of the power supplying circuitry in the host device which houses the module. The module shall comply with the provisions for external power amplifiers and antennas detailed in this standard. The Equipment certification submission shall contain a detailed description of the configuration of all antennas that will be used with the module. The module shall be tested for compliance with the applicable standard in a stand-

alone configuration, i.e. the module must not be inside another device during testing. The module has its own RF shielding. Shield Can is employed on the board structure, please see exhibition External Photo, the emission measurement was conducted without further shielding added. All modulation and data input(s) are buffered. The EUT has buffered data inputs, it is integrated on the RF chip Output power is controlled by the RF Chip and de-coupled from supply voltage variations. Frequencies are determined by Crystal The antenna is part of the module The modular transmitter was tested in a stand-alone configuration via a UART Interface. The module shall comply with the Category I equipment labelling requirements. In the exhibition OEM manual, there are Instructions given to the OEM on how to label the end product. 1 2 3 4 5 6 Y Y Y Y Y Y The modular transmitter complies with all specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer will provide adequate instructions along with the module to explain any such requirements. A copy of these instructions is included in this application for equipment authorization:

Address compliance with the Commission's RF exposure limits in Sections 1.1310 and 2.1093. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF exposure compliance in accordance with Section 15.247(b)(4). 7 8a Instructions in User Manual Please refer the Maximum Permissible Exposure Information. Y Y A limited modular approval may be granted for single or split modular transmitters that do not comply with all of the above requirements, e.g., shielding, minimum signaling amplitude, buffered modulation/data inputs, or power supply regulation, if the manufacturer can demonstrate by alternative means in the application for equipment authorization that the modular transmitter meets all the applicable Part 15 requirements under the operating conditions in which the transmitter will be used. Limited modular approval also may be granted in those instances where compliance with RF exposure rules is demonstrated only for particular product configurations. The applicant for certification must state how control of the end product into which the module will be installed will be maintained such that full compliance of the end product is always ensured. Signature Name/Title: Steve Caldwell / Vice President Company Name: Microchip Technology Inc. Date: 26.07.2022