FCC ID: T7V9520 Wi-Fi Module

PAN9520 Embedded Wi-Fi Module Module Integration Guide Rev. 1.0 Wireless Connectivity Module Integration Guide Rev. 1.0 Page 2 of 47 PAN9520 Wi-Fi Module Overview The PAN9520 is a 2.4GHz ISM band Wi-Fi embedded module based on Espressif ESP32-S2, which includes a wireless radio and a MCU for easy integration of Wi-Fi connectivity into various electronic devices. Features Embedded 2.4GHz Wi-Fi 802.11 b/g/n module Xtensa single-core 32-bit LX7 microprocessor, up to 240MHz Chip internal 128kB ROM, 320kB SRAM, and 16kB low power SRAM Integrated QSPI Flash and PSRAM (a variety of memory densities are available) Ultra-Low Power (ULP) co-processor usable in deep sleep mode All security features required for WPA2 and WPA3 personal Espressif Integrated Development Framework

(ESP-IDF) with a multitude of examples available for software development Supports 20MHz and 40MHz bandwidths in 2.4GHz band with data rates up to 150Mbps Simultaneous support for Infrastructure Station, SoftAP, and promiscuous modes 802.11mc Fine Time Measurement (FTM) 36x programmable GPIOs with a rich set of alternative functionalities:

2 12-bit SAR ADCs, up to 20 channels 2 8-bit DAC 14 touch sensing IOs 4 SPI (2x available for general purpose) 1 IS 2 IC 2 UART RMT (Tx/Rx) LED PWM, up to 8 channels 1 full-speed USB OTG 1 DVP 8/16 camera interface (IS resources used) 1 LCD interface (SPI2 resources used) 1 LCD interface (IS resources used) Characteristics Surface Mount Type (SMT):

24mm 13mm 3.1mm Tx power up to 19.5dBm at IEEE 802.11b 1Mbps Rx sensitivity of -97 dBm at IEEE 802.11b 1Mbps Power supply 3V to 3.6V Current consumption 260mA Tx (average at 11b, 11Mbps), 76mA Rx (40MHz channel), 310mA Tx peak Deep sleep mode <100A typical power consumption (RTC timer only and VDD_SPI disconnected) Wide temperature range from -40C to 85C Block Diagram Module Integration Guide Rev. 1.0 Page 3 of 47 PAN9520 Wi-Fi Module By purchase of any of the products described in this document the customer accepts the document's validity and declares their agreement and understanding of its contents and recommendations. Panasonic Industrial Devices Europe GmbH (Panasonic) reserves the right to make changes as required at any time without notification. Please consult the most recently issued Module Integration Guide before initiating or completing a design. Panasonic Industrial Devices Europe GmbH 2021. This specification sheet is copyrighted. Reproduction of this document is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Do not disclose it to a third party. All rights reserved. This Module Integration Guide does not lodge the claim to be complete and free of mistakes. Engineering Samples (ES) If Engineering Samples are delivered to the customer, these samples have the status Engineering Samples. This means that the design of this product is not yet concluded. Engineering Samples may be partially or fully functional, and they may differ from the published Product Specification. Engineering Samples are not qualified and they are not to be used for reliability testing or series production. Disclaimer The customer acknowledges that samples may deviate from the Module Integration Guide and may bear defects due to their status of development and the lack of qualification mentioned above. Panasonic rejects any liability or product warranty for Engineering Samples. In particular, Panasonic disclaims liability for damages caused by:

The use of the Engineering Sample other than for evaluation purposes, particularly the installation or integration in another product to be sold by the customer, Deviation or lapse in function of the Engineering Sample, Improper use of the Engineering Sample. Panasonic Industrial Devices Europe GmbH disclaims any liability for consequential and incidental damages. In case of any queries regarding the Engineering Samples, please contact your local sales partner or the related product manager. The information contained herein is presented only as guidance for Product use. No responsibility is assumed by Panasonic for any infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to any intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise. Description of hardware, software, and other information in this document is only intended to illustrate the functionality of the referred Panasonic product. It should not be construed as guaranteeing specific functionality of the product as described or suitable for a particular application. Any provided (source) code shall not be used or incorporated into any products or systems whose manufacture, use or sale is prohibited under any applicable laws or regulations. Any outlined or referenced (source) code within this document is provided on an as is basis without any right to technical support or updates and without warranty of any kind on a free of charge basis according to 516 German Civil Law (BGB) including without limitation, any warranties or conditions of title, non infringement, merchantability, or fitness for a particular purpose. Customer acknowledges that (source) code may bear defects and errors. Module Integration Guide Rev. 1.0 Page 4 of 47 PAN9520 Wi-Fi Module The third-party tools mentioned in this document are offered by independent third-party providers who are solely responsible for these products. Panasonic has no responsibility whatsoever for the performance, product descriptions, specifications, referenced content, or any and all claims or representations of these third-party providers. Panasonic makes no warranty whatsoever, neither express nor implied, with respect to the goods, the referenced contents, or any and all claims or representations of the third-party providers. To the maximum extent allowable by Law Panasonic assumes no liability whatsoever including without limitation, indirect, consequential, special, or incidental damages or loss, including without limitation loss of profits, loss of opportunities, business interruption, and loss of data. Module Integration Guide Rev. 1.0 Page 5 of 47 PAN9520 Wi-Fi Module Table of Contents 1 3 4 5 6 7 8 About This Document ......................................................................................................................... 7 Purpose and Audience .............................................................................................................. 7 1.1 Revision History ......................................................................................................................... 7 1.2 Use of Symbols ......................................................................................................................... 7 1.3 Related Documents ................................................................................................................... 8 1.4 2 Overview .............................................................................................................................................. 9 PAN9520 Module ............................................................................................................................... 10 Block Diagram ......................................................................................................................... 10 3.1 Footprint .................................................................................................................................. 11 3.2 Placement ................................................................................................................................ 12 3.3 Power Supply .................................................................................................................................... 14 Power Terminals ...................................................................................................................... 14 4.1 RF Path Design ................................................................................................................................. 15 External Antenna ..................................................................................................................... 15 5.1 RF Trace .................................................................................................................................. 15 5.2 Regulatory and Certification Information ....................................................................................... 17 6.1 Integration Measures for a Valid Approval ............................................................................... 17 6.2 General Certification Information ............................................................................................. 38 Federal Communications Commission (FCC) for US .............................................................. 38 6.3 Innovation, Science, and Economic Development (ISED) for Canada .................................... 41 6.4 European Conformity According to RED (2014/53/EU) ........................................................... 45 6.5 Restricted Use ................................................................................................................................... 46 Life Support Policy ................................................................................................................... 46 7.1 Restricted End Use .................................................................................................................. 46 7.2 Contact Details .................................................................................................................................. 47 Contact Us ............................................................................................................................... 47 8.1 Product Information ................................................................................................................. 47 8.2 Module Integration Guide Rev. 1.0 Page 6 of 47 PAN9520 Wi-Fi Module 1 About This Document 1.1 Purpose and Audience 1 About This Document This Module Integration Guide is intended to support the easy integration of the PAN9520 into a product and to ensure the compliance with regulatory requirements. This guide gives an overview about the hardware design requirements. It is intended for hardware design, application, and Original Equipment Manufacturers (OEM) engineers. Please read this guide carefully to assure the compliance of your product to regulatory. The product is referred to as the PAN9520 or the module within this document. 1.2 Revision History Revision Date Modifications/Remarks 1.0 31.05.2021 Initial Version 1.3 Use of Symbols Symbol Description Note Attention Tip Example:

Indicates important information for the proper use of the product. Non-observance can lead to errors. Indicates important notes that, if not observed, can put the products functionality at risk. Indicates useful information designed to facilitate working with the module and software.

[chapter number]

[chapter title]

Cross reference Indicates cross references within the document. Description of the symbols used in this document 1.3 Use of Symbols. Requirement Result Indicates a requirement that must be met before the corresponding tasks can be completed. Indicates the result of a task or the result of a series of tasks. Module Integration Guide Rev. 1.0 Page 7 of 47 1 About This Document PAN9520 Wi-Fi Module Symbol This font Description GUI text Example:

Click Save. Example:

Menu > Menu item Path Indicates a path, e.g. to access a dialog. In the menu, select File > Setup page. This font File names, messages, user input Indicates fixed terms and text of the graphical user interface. Indicates file names or messages and information displayed on the screen or to be selected or entered by the user. Examples:

pan1760.c contains the actual module initialization. The message Failed to save your data is displayed. Enter the value Product 123. Key Key Indicates a key on the keyboard, e.g. F10 . 1.4 Related Documents For related documents please refer to the Panasonic website 8.2 Product Information. Module Integration Guide Rev. 1.0 Page 8 of 47 PAN9520 Wi-Fi Module 2 Overview 2 Overview The PAN9520 is a 2.4GHz 802.11b/g/n embedded WiFi module based on Espressif's ESP32-

S2 that includes the powerful Xtensa 32-bit LX7 CPU. An integrated chip antenna and QSPI memory enable the module to be used in a variety of stand-alone or host-controlled applications. The integrated crystal ensures connection performance over full temperature range and lifetime. Although the PAN9520 is one of the smallest modules on the market, this offers a rich set of peripherals like full-speed USB OTG, SPI, UART, IC, and many more1. The PAN9520 combines a highperformance CPU, highsensitivity wireless radio, baseband

(BB) processor, Medium Access Controller (MAC), encryption unit, ROM bootloader, chip-

internal SRAM, and module-internal QSPI flash and PSRAM. Features as CCMP, TKIP, WAPI, WEP, BIP, and an AES2 accelerator enable the usage of secure data connections. Parallel support of access point and station mode allows easy setup of simultaneous WiFi connections from the module to smart devices and home network routers. With the Espressif Integrated Development Framework (ESP-IDF), software can be developed for a wide range of applications. At the same time, a huge number of software examples can be used as starting point for the development. Please note that the ESP-IDF is provided by Espressif Systems. Always use the latest updates https://github.com/espressif/esp-idf. For related documents please refer to 8.2 Product Information. 1 Compared to modules offering similar feature sets 2 Counter Mode with CBC-MAC Protocol (CCMP); Temporary Key Integrity Protocol (TKIP); WLAN Authentication and Privacy Infrastructure (WAPI); Wired Equivalent Privacy (WEP); Broadcast/Multitask Integrity Protocol (BIP); Advanced Encryption Standard (AES) Module Integration Guide Rev. 1.0 Page 9 of 47 PAN9520 Wi-Fi Module 3 PAN9520 Module 3.1 Block Diagram 3 PAN9520 Module Module Integration Guide Rev. 1.0 Page 10 of 47 PAN9520 Wi-Fi Module 3.2 Footprint 3 PAN9520 Module The dimensions are in millimeters. The outer dimensions have a tolerance of 0.35 mm. Module Integration Guide Rev. 1.0 Page 11 of 47 Antenna Keep Out AreaB1B2B3B14B4B5B6B7B8B9B10B11B12B13A2A3A14A4A5A6A7A8A9A10A11A12A13C1C14C11C12C13D1D14D11D12D13E1E14E11E12E13F1F14F11F12F13G1G14G11G12G13H1H2H3H14H4H5H6H7H8H9H10H11H12H13I1I2I3I14I4I5I6I7I8I9I10I11I12I13A1GT4(Thermal GND)GT1(Thermal GND)GT6(Thermal GND)GT3(Thermal GND)GT5(Thermal GND)GT2(Thermal GND)Top View1,00mm1,80mm3,00mm1,40mm9,00mm12,00mm24,00mm4,00mm5,00mm4,00mm3,30mm13,00mm2,40mm2,40mm0,60mm0,90mm0,80mm1,40mm0,60mm0,80mm PAN9520 Wi-Fi Module 3.3 Placement 3 PAN9520 Module Antenna Keep out Area Do not place any ground plane under the marked restricted antenna area in any layer! This would be affecting the performance of the chip antenna in a critical manner. Impact of Placement on the Antenna Radiation Pattern The placement of the module, surrounding material, and customer components has an impact on the radiation pattern of the antenna. The recommendation for the ground plane is based on a FR4 4-Layer PCB. The following requirements must be met:

Keep this product away from heat. Heat is the major cause of decreasing the life of these products. Keep this product away from other high frequency circuits. Module Integration Guide Rev. 1.0 Page 12 of 47 PAN9520 Wi-Fi Module The antenna requires a cutout area of 5mm x 3.3mm under the PAN9520 module. This Keep out Area shall be located in every layer under the module antenna. Note for example the Keep out Area in all four layers of the PAN9520 evaluation board. 3 PAN9520 Module It is recommended to verify the perfect position of the module in the target application before fixing the design. All dimensions are in millimeters. Use a ground plane in the area surrounding the module wherever possible. Recommended antenna/module placement:

Place the module at the edge of the mother PCB with the antenna pointing towards the outside bottom plane) Align the module at the center of this edge Provide 22.5 mm ground planes next to the antennas keep-out-area (both sides; top and Dont place any copper on any layer in the antennas keep out area (5 mm x 3 mm) Extend the keep-out-area towards the mother PCBs edge, if needed Antenna Placement Recommendation Module Integration Guide Rev. 1.0 Page 13 of 47 5 mm>= 22.5 mm>= 22.5 mm3 mm PAN9520 Wi-Fi Module 4 Power Supply 4 Power Supply The following conditions must be met:

The supply voltage must be free of AC ripple voltage (for example from a battery or a low noise regulator output). On the PAN9520 ETU, 10 F decoupling capacitors on each supply terminal are used for this purpose. If there is much noise on the power delivery network, a filter network can be used intead. Decoupling capactitors/networks should be placed close to the module to reduce inductive The supply voltage should not be exceedingly high or reversed. It should not carry noise effects. and/or spikes. 4.1 Power Terminals There are three power terminals on the PAN9520. All are connected to the same 3.3V power net on the module. Although the module could be powered via one terminal only, it is recommended to use all terminals for distributing the currents. This will lead to a smaller voltage drop and thus a better power integrity. Moreover, the supplys return currents will also be distributed, which reduces the galvanic coupling from the power net to signals and vice versa. The power terminals are indicated by red rectangles in the figure below. Module Integration Guide Rev. 1.0 Page 14 of 47 PAN9520 Wi-Fi Module 5 RF Path Design 5.1 External Antenna 5 RF Path Design Antenna Warning The PAN9520s modular approval is only valid if the on-board antenna is used. Other antennas have not been certified. OEMs must test the compliance of the product by themselves, if other antennas are used in the end product. The PAN9520 module has a 50 RF pin (SMD pad). Connect an external antenna directly or via a connector (e.g. U.FL) with RF trace to this RF pin. This RF trace shall be matched to 50 5.2 RF Trace. 5.2 RF Trace Ensure that the RF traces impedance is close to 50. It is recommended to use a Coplanar Waveguide with Ground (CPWG) as RF trace. The impedance is related to the trace width, the distances of the trace to the ground layers and the material of the PCB. The following design recommendation shall be met:

Trace impedance of 50 Trace length shall not exceed 2cm Via fence around the trace Crossing no other lines (power supply, interfaces or clock traces) 5.2.1 Example RF Trace of the PAN9520 ETU On the PAN9520 ETU (ENW49D01AZKF), the modules RF pad is connected to an U.F.L. connector. As an example, this RF trace is described in the following. The trace is shown in the figure below (red marking). It can be observed that it is surrounded by a via fence as recommended. A critical point is the transition from the module to the mother PCB. Further simulations of the transition and the RF paths help to determine e.g. the positions of ground vias around the RF pad. Module Integration Guide Rev. 1.0 Page 15 of 47 SubstrateSignalGNDGNDGND PAN9520 Wi-Fi Module 5 RF Path Design The dimensions of the used RF path are listed below:

Trace width Gap to GND Height of substrate Relative permittivity W G H r

= 178 m

= 156 m

= 127 m

= 4.2 Copper thickness TH

= 35 m Loss tangent tan = 0.021 Module Integration Guide Rev. 1.0 Page 16 of 47 HGGWTHr, tan PAN9520 Wi-Fi Module 6 Regulatory and Certification Information 6 Regulatory and Certification Information 6.1 Integration Measures for a Valid Approval The modular approval of the PAN9520 is only valid if the OEM satisfies several requirements. These affect mainly the output power and the limitation of the operating channel range. This section describes how both can be controlled and what are the measures for a valid modular approval. The PAN9520 is distributed without software and to OEMs only. The OEM is responsible for using a software that complies with the local regulations. PAN9520 evaluation tools must be distributed to OEMs only. 6.1.1 Limiting the Channel Range and Setting the Country Code The range of channels, on which the PAN9520 can operate, has to be limited according to the location of the module (or end product). The modular approval is only valid, if the OEM applies the needed limitations in the developed software. This section describes how the required limitations can be implemented. Depending on the region the PAN9520 is operating in, the range of channels must be limited accordingly. The OEM is responsible for implementing a software that fulfills this requirement. Channels must be limited to following ranges:

FCC (USA): Channels 1 to 11 IC (Canada): Channels 1 to 11 RED (EU): Channels 1 to 13 The country code and channel limitations must not be changeable in the end product / application. 6.1.1.1 Country Code Setting with ESP-IDF The Espressif Integrated Development Framwork (ESP-IDF) is the official software development kit (SDK) for the ESP32-S2 IC used on the PAN9520. This contains a function called esp_wifi_set_country that can be used for setting the country code and limiting the channel range. The function returns an error code of type esp_err_t. A pointer to a variable of Module Integration Guide Rev. 1.0 Page 17 of 47 PAN9520 Wi-Fi Module type wifi_country_t is needed as input. When the function is called, the settings of the linked input variable (*country) are stored to the modules flash memory. 6 Regulatory and Certification Information https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32s2/api-

reference/network/esp_wifi.html?highlight=esp_wifi_set_country#_CPPv420esp_wifi_set_countryPK14wifi_country_t The linked variable (type wifi_country_t) is a structure that contains all needed settings, which are listed below. Module Integration Guide Rev. 1.0 Page 18 of 47 PAN9520 Wi-Fi Module Structure of type wifi_country_t 6 Regulatory and Certification Information Name cc3 Type Example Settings Description char array (3 bytes) cc[0-2] = [D, E, ]

cc[0-2] = [U, S, ]

cc[0-2] = [C, A, ]

cc[0-2] = [E, U, ]

schan uint8_t nchan uint8_t max_tx_power int8_t 1 11 56 policy4 wifi_country WIFI_COUNTRY _policy_t _POLICY_MANUAL This array of three characters contains the two-digit country code

(ISO/IEC3166-1) and an environmental setting (byte 3). Example codes are given for Germany (DE), USA (US), Canada

(CA) and the European Union (EU). Index of first channel of the allowed range. Number of channels in the allowed range. The index of the last channel in the range is schan + nchan - 1 Maximum Tx power in steps of 0.25 dBm (valid values 8 to 78 2 to 19.5 dBm) Setting, if the configured country code is always used, or if the module adapts to the AP configuration (if it is station). Details are given in the following. WIFI_COUNTRY_POLICY_AUTO If the PAN9520 is configured as station, the used country code setting is adapted to the one of the access point (AP), to which the station is connected. Please note that not only the country code itself is changed, but also the channel range. After the station has been disconnected from the AP, the country code setting is reset to the configured one. If the module is in station mode, not connected to an AP and performs a scan, this scans actively on channels schan to min{(schan + nchan -1), 11} of the configured country code setting. The remaining channels schan + nchan to 14 (or 12 to 14 if schan + nchan >= 12) are scanned passively. This ensures that regulations are not violated, even if the configured country code doesnt match the location of the device. Please note that hidden SSIDs on channels 12 to 14 can never be found, if WIFI_COUNTRY_POLICY_AUTO is used. If the module is in station mode, connected to an AP and performs a scan, the module uses the country code settings of the AP. Hence, an active scan is performed on schan to (schan +

3 Entries zero and one contain the alpha-2 country code specified by ISO3166. A list of codes can be found on https://www.iso.org/obp/ui/#search/code/. Please note that there are also reserved codes that dont represent a country but are valid as well. An example would be EU for the European union. 4 The setting policy is of another custom datatype called wifi_country_policy_t. Variables of this type are enumerations with two valid numbers. The numbers are represented by following macros:

Module Integration Guide Rev. 1.0 Page 19 of 47 PAN9520 Wi-Fi Module nchan -1) of the APs country code settings and a passive scan is performed on the remaining channels. 6 Regulatory and Certification Information If the module is set to station/AP coexistence mode, the configured country code settings are used as long as the device hasnt been connected to another AP. If the device is connected to another AP, the country code settings of the AP are used (also for the modules AP). If the module is configured as AP, this setting hasnt any effect and the configured country code settings are always used. Please see https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32/api-guides/wifi.html#wi-fi-

country-code for further details (accessed on 31.03.2021). WIFI_COUNTRY_POLICY_MANUAL If this setting is used, the configured country code settings are used in any case. Only channels in the valid range can be scanned actively. Please see https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32/api-guides/wifi.html#wi-fi-

country-code for further details (accessed on 31.03.2021). Example 1 (US, Manual Policy) If the module shall be e.g. only operated in the USA, the country code could be set accordingly and the policy setting can be set to WIFI_COUNTRY_POLICY_MANUAL for ensuring that the device cannot operate on prohibited channels in any case. A related application could be a product that operates as AP and is sold in the US. Related example C code is given below. Example 2 (EU, Automatic Policy) In this example, the country code is set to EU and channels 1 to 13 are enabled. The maximum output power is limited to 16 dBm (see next chapter for details) and the policy is set to WIFI_COUNTRY_POLICY_AUTO. This could be applicable for a product that acts as station and is sold in the EU. If the device is operated in a non-EU region, the country code will be adapted to the one of local APs. If the device is not connected to any AP, active scans will be only performed on channels 1 to 11. Channels 12 to 14 are scanned passively. Module Integration Guide Rev. 1.0 Page 20 of 47

#include "exmpl_error_check.h" #include "esp_wifi.h" esp_err_t error_code; wifi_country_t cc_us_manual = {{'U', 'S', ' '}, 1, 11, 78, WIFI_COUNTRY_POLICY_MANUAL}; wifi_country_t* cc_us_manual_pt = &cc_us_manual; error_code = wifi_set_country(cc_us_manual_pt); check_error_code(error_code);

PAN9520 Wi-Fi Module 6 Regulatory and Certification Information Further Reading Wi-Fi Country Code general description: https://docs.espressif.com/projects/esp-

idf/en/v4.2/esp32/api-guides/wifi.html#wi-fi-country-code Function esp_wifi_set_country: https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32/api-

reference/network/esp_wifi.html#_CPPv420esp_wifi_set_countryPK14wifi_country_t Data type wifi_country_t: https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32/api-

reference/network/esp_wifi.html#_CPPv414wifi_country_t 6.1.1.2 Country Code Setting with ESP32-S2 AT Firmware Instead of developing an embedded software for the PAN9520, an AT firmware provided by Espressif can be used. This is based on the ESP-IDF and is available as source code or precompiled binary. This section explains how the country code settings can be applied, if the AT firmware is used. There are two commands related to the country code setting. These are AT+CWCOUNTRY?, which will query the current country code information, and AT+CWCOUNTRY, which will set the country code configuration and store it into flash. The input parameters are similar to those used in ESP-IDF (see section 6.1.1.1) and are only explained briefly in the following. https://docs.espressif.com/projects/esp-at/en/release-v2.1.0.0_esp32s2/AT_Command_Set/Wi-Fi_AT_Commands.html#at-cwcountry-configures-the-wi-

fi-country-code country_policy country_code start_channel 0: Identical to WIFI_COUNTRY_POLICY_AUTO option in ESP-IDF 1: Identical to WIFI_COUNTRY_POLICY_MANUAL option in ESP-IDF String of variable length (maximum 3) containing the country code. Please note that quotation marks must be used to identify the parameter as string. Similar to cc[0-2] in ESP-IDF. Index of first channel allowed to use. Identical to schan in ESP-IDF. total_channel_count Number of channels that can be used. The index of the last channel is start_channel +

total_channel_count 1. Identical to nchan in ESP-IDF. Module Integration Guide Rev. 1.0 Page 21 of 47

#include "exmpl_error_check.h" #include "esp_wifi.h" esp_err_t error_code; wifi_country_t cc_eu_auto = {{'E', 'U', ' '}, 1, 13, 64, WIFI_COUNTRY_POLICY_AUTO}; wifi_country_t* cc_eu_auto_pt = &cc_eu_auto; error_code = wifi_set_country(cc_eu_auto_pt); check_error_code(error_code);

PAN9520 Wi-Fi Module Example (Canada, Manual Policy) 6 Regulatory and Certification Information This example illustrates the configuration via AT commands. The country code has been chosen to be CA for Canada and the range of allowed channels are set to 1 to 11 accordingly. The device shall always use the configured country code settings, which causes the paratmeter country_policy to be one. Following figure shows the related serial communication. Further Reading AT command description: https://docs.espressif.com/projects/esp-at/en/release-

v2.1.0.0_esp32s2/AT_Command_Set/Wi-Fi_AT_Commands.html#at-cwcountry-configures-the-wi-fi-

country-code 6.1.2 Limiting the Output Power For a valid modular approval, the radiated power must not exceed certain limits. These can be summarized as follows:

RED (Europe) Standard 802.11b 802.11g & 802.11n Affected Channels Power Limit 1 to 13 1 to 13 (20 MHz) 3 to 11 (40 MHz) FCC (USA) and IC (Canada) Standard 802.11b 1 to 11 802.11g & 802.11n 3 to 9 (20 MHz) Affected Channels Power Limit 802.11g & 802.11n 1, 2, 10 and 11 (20 MHz) 13 dBm 802.11n All 40 MHz channels 11 dBm 14 dBm 16 dBm 18 dBm 16 dBm Module Integration Guide Rev. 1.0 Page 22 of 47 PAN9520 Wi-Fi Module All limits have been determined using the modules integrated chip antenna. For limiting the power, there are several options that are explained in this section. These are:

6 Regulatory and Certification Information 1. Using a phy_init_data binary (stored into a corelated partition) to limit the power for each channel and modulation (ESP-IDF and AT firmware). 2. Editing and using the phy_init_data implemented in the user applications source code

(ESP-IDF). Please note that the power limits documented in this chapter must not be exceeded in the end product to keep the modular approval valid. Examples that fulfill this requirement are documented in the following sections. Please note that it is not recommended to use functions like esp_wifi_set_max_tx_power, because the device could transmit with restricted output power settings before the function is called. 6.1.2.1 Using phy_init_data Binary The physical (PHY) layer is controlled by a PHY init data set. This can be defined in the application source code or it can be stored into a separate partition of the modules Flash memory. This section explains how the data is composed, how it can be stored and how the user application can be configured to use the data stored in the partition. Binaries for applying settings that comply with the RED or FCC / IC regulations are provided by Panasonic. If a related partition is reserved in the partition table and the setting CONFIG_ESP32_PHY_INIT_DATA_IN_PARTITION in the project configurations is set to y, the data can be flashed and is then used by the hardware. Phy Init Data Structure The data is composed of 128 bytes that configure the devices PHY layer. The data that is flashed into the corresponding partition contains 16 more bytes. Eight at the beginning and eight at the end. Byte positions stated in this section are relative to start of the stored data (binary data). Six power values can be stored and used for configuration. Power settings can be defined for different data rates (=> standards and modulations). Additionally, the maximum power can be configured for each channel. Details are given below or in https://www.espressif.com/sites/default/files/documentation/esp32_phy_init_bin_parameter_configuration_ guide_en.pdf. Following figure illustrates an example process for configuring/editing the phy init data. This consists mainly of three steps: Defining six power values, setting up the power for each available standard and modulation and defining power limits for each available channel. Module Integration Guide Rev. 1.0 Page 23 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information Power Values Beginning with the first step of the example configuration process, six power values are defined. They are stored in bytes 52 to 57 (0x34 to 0x39) of the binary data and are called txpwr_qdb_0 to txpwr_qdb_5. A value written to such a byte corelates to 4*[power in dBm]. The following table shows values of the recommended binary files (for RED and FCC/IC). Name Value Resulting Power Byte Position in Binary RED FCC / IC RED FCC / IC txpwr_qdb_0 52 (0x34) 56 (0x38) 72 (0x48) 14 dBm 18 dBm txpwr_qdb_1 53 (0x35) 64 (0x40) 64 (0x40) 16 dBm 16 dBm txpwr_qdb_2 54 (0x36) 60 (0x3C) 60 (0x3C) 15 dBm 15 dBm txpwr_qdb_3 55 (0x37) 56 (0x38) 56 (0x38) 14 dBm 14 dBm txpwr_qdb_4 56 (0x38) 56 (0x38) 52 (0x34) 14 dBm 13 dBm txpwr_qdb_5 57 (0x39) 52 (0x34) 48 (0x30) 13 dBm 12 dBm Module Integration Guide Rev. 1.0 Page 24 of 47 PAN9520 Wi-Fi Module Configuring the values txpwr_qdb_0 to txpwr_qdb_5 also defines 11 imaginary power levels. These are called TX Power Limit and depend on the defined values as follows. 6 Regulatory and Certification Information Name Power in dBm Depending on Conf. Values Resulting Power RED FCC / IC TX Power Limit 0 txpwr_qdb_0 / 4 TX Power Limit 1 txpwr_qdb_1 / 4 TX Power Limit 2 txpwr_qdb_2 / 4 TX Power Limit 3 txpwr_qdb_3 / 4 TX Power Limit 4 txpwr_qdb_4 / 4 TX Power Limit 5 txpwr_qdb_5 / 4 TX Power Limit 6

(txpwr_qdb_5 / 4) - 1 TX Power Limit 7

(txpwr_qdb_5 / 4) - 2 TX Power Limit 8

(txpwr_qdb_5 / 4) - 3 TX Power Limit 9

(txpwr_qdb_5 / 4) - 4 TX Power Limit 10

(txpwr_qdb_5 / 4) - 5 14 dBm 16 dBm 15 dBm 14 dBm 14 dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 18 dBm 16 dBm 15 dBm 14 dBm 13 dBm 12 dBm 11 dBm 10 dBm 9 dBm 8 dBm 7 dBm Power Levels for Modulations and Standards The second configuration step defines power levels for each standard and modulation, whereas the modulation of standards b and g is defined by the related data rates. There are 11 bytes for applying the configuration with some configurations merged to one byte. Bytes txpwr_index_0 to txpwr_index_7 are stored at byte positions 58 to 65 and correspond to standards 802.11g and 802.11n. The power is defined by the index of the desired power value txpwr_gdb. For configuring the power levels of standard 802.11b, there are two possibilities. The first is to set byte txpwr_index_11b_en at byte position 66 to zero. This makes txpwr_qdb_0 to be used for all 802.11b data rates. If the byte txpwr_index_11b_en is set to one, txpwr_index_11b_0 and txpwr_index_11b_1 define the maximum power levels, which is the second option. Configurations that fulfill the requirements for a valid modular approval are given in the following table. The configuration requires the power values to be configured as described in the previous section. Module Integration Guide Rev. 1.0 Page 25 of 47 PAN9520 Wi-Fi Module Name 6 Regulatory and Certification Information Affected Data Rate / MCS txpwr_qdb Index Resulting Power RED FCC / IC RED FCC / IC Byte Position in Binary 58

(0x3A) 59

(0x3B) 60

(0x3C) 61

(0x3D) 62

(0x3E) 63

(0x3F) 64

(0x40) 65

(0x41)

(0x42) 67

(0x43) 68

(0x44) txpwr_index_0 11g: 6 & 9 Mbit/s 0x01 0x01 16 dBm 16 dBm txpwr_index_1 11g: 12 Mbit/s 0x01 0x01 16 dBm 16 dBm txpwr_index_2 11g: 18 Mbit/s 0x01 0x01 16 dBm 16 dBm txpwr_index_3 11g: 24 Mbit/s 0x01 0x01 16 dBm 16 dBm txpwr_index_4 11g: 36 Mbit/s 0x01 0x01 16 dBm 16 dBm txpwr_index_5 11g: 48 Mbit/s 0x02 0x02 15 dBm 15 dBm txpwr_index_6 11g: 54 Mbit/s 0x03 0x03 14 dBm 14 dBm 11n: MCS 0 11n: MCS 1 11n: MCS 2 11n: MCS 3 11n: MCS 4 11n: MCS 5 11n: MCS 6 txpwr_index_7 11n: MCS 7 0x05 0x04 13 dBm 13 dBm txpwr_index_11b_en5 66 11b 0x00 0x00 14 dBm 18 dBm txpwr_index_11b_05 11b: 1 & 2 Mbit/s 0x00 0x00 N/A N/A txpwr_index_11b_15 0x00 0x00 N/A N/A 11b: 5.5 & 11 Mbit/s Power Limits for Channels The third configuration step defines power limits for each channel. If the power configured for a certain standard and modulation exceeds the limit of the current channel, the power is reduced to the one of the limit. The first byte (at position 69) of this configuration (fcc_enable) determines if the limits are applied. If the bytes value is zero, settings made in bytes mpwr_cbw20_chan1 to mpwr_cbw40_chan11 are ignored. In contrast, they are applied, if fcc_enable is two. 5 txpwr_index_11b_en determines, if txpwr_gdb_0 is used for all 11b data rates (value = 0), or if configurations txpwr_index_11b_0 and txpwr_index_11b_1 are used (value = 1). Module Integration Guide Rev. 1.0 Page 26 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information Bytes mpwr_cbw20_chan1 to mpwr_cbw20_chan1 are stored at byte positions 70 to 83 and configure the power limits for the 20 MHz channels. Each of these bytes is separated into two nibbles: bit[3:0] (low nibble) and bit[7:4] (high nibble). The low nibble configures the limit for standards 802.11g and 802.11n. The high nibble configures the limit for standard 802.11b. By selecting the index of the desired TX Power Limit for a nibble, the configuration is made. The limits of the 40 MHz channels are configured by bytes mpwr_cbw40_chan3_4 to mpwr_cbw40_chan11. Because 40 MHz channels can be only used with the 802.11n standard, the bytes nibbles do not correspond to standards. Instead, each nibble is used for one channel. Thus, each configuration byte contains the setting for two channels. The low nibble (bit[3:0]) configures the lower channel and the high nibble (bit[7:4]) configures the higher channel. An example configuration that complies with the FCC/IC regulations is given in the table below

(channels limits are not needed for RED). Unused channels have been configured with the lowest TX Power Limit value. Because byte nibbles are used for configuration, the hexadecimal representation is quite convenient. Each nibble is represented by a digit in the range 0x0 to 0xA (0 to 10 in decimal system). Name Notes Byte Position in Binary TX Power Limit Index Resulting Power RED FCC / IC FCC / IC fcc_enable 69 (0x45) 0: Disable limits 0x00 0x02 Power limits are enabled 1: N/A 2: Enable limits mpwr_cbw20_chan1 70 (0x46) Bit[3:0]: 11g/n N/A 0x04 11g/n: 13 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan2 71 (0x47) Bit[3:0]: 11g/n N/A 0x04 11g/n: 13 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan3 72 (0x48) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan4 73 (0x49) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan5 74 (0x4A) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan6 75 (0x4B) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan7 76 (0x4C) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm Module Integration Guide Rev. 1.0 Page 27 of 47 PAN9520 Wi-Fi Module Name 6 Regulatory and Certification Information Notes Byte Position in Binary TX Power Limit Index Resulting Power RED FCC / IC FCC / IC mpwr_cbw20_chan8 77 (0x4D) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan9 78 (0x4E) Bit[3:0]: 11g/n N/A 0x01 11g/n: 16 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan10 79 (0x4F) Bit[3:0]: 11g/n N/A 0x04 11g/n: 13 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan11 80 (0x50) Bit[3:0]: 11g/n N/A 0x04 11g/n: 13 dBm Bit[7:4]: 11b 11b: 18dBm mpwr_cbw20_chan12 81 (0x51) Bit[3:0]: 11g/n N/A 0xAA 11g/n: 7 dBm Bit[7:4]: 11b 11b: 7 dBm mpwr_cbw20_chan13 82 (0x52) Bit[3:0]: 11g/n N/A 0xAA 11g/n: 7 dBm Bit[7:4]: 11b 11b: 7 dBm mpwr_cbw20_chan14 83 (0x53) Bit[3:0]: 11g/n N/A 0xAA 11g/n: 7 dBm Bit[7:4]: 11b 11b: 7 dBm mpwr_cbw40_chan3_4 84 (0x54) Bit[3:0]: ch 3 N/A 0x66 Ch 3: 11 dBm Bit[7:4]: ch 4 Ch 4: 11 dBm mpwr_cbw40_chan5_6 85 (0x55) Bit[3:0]: ch 5 N/A 0x66 Ch5: 11 dBm Bit[7:4]: ch 6 Ch6: 11 dBm mpwr_cbw40_chan7_8 86 (0x56) Bit[3:0]: ch 7 N/A 0x66 Ch7: 11 dBm Bit[7:4]: ch 8 Ch8: 11 dBm mpwr_cbw40_chan9_10 87 (0x57) Bit[3:0]: ch 9 N/A 0xA6 Ch9: 16 dBm Bit[7:4]: ch 10 Ch10: 7 dBm mpwr_cbw40_chan11 88 (0x58) Bit[3:0]: ch 11 N/A 0xAA Ch11: 7 dBm Bit[7:4]: N/A Editing Binary Files It is recommended to use the binary files provided by Panasonic. Anyway, the files can be edited as long as they do not exceed the limits given at the beginning of section 6.1.2. Therefore, an editor that can represent the binary data as hexadecimal values is recommended

(e.g. HxD). Module Integration Guide Rev. 1.0 Page 28 of 47 PAN9520 Wi-Fi Module Enabling the Usage of a Phy Init Data Binary 6 Regulatory and Certification Information Per default the PAN9520 will use the phy init data defined by the source code. If a binary file shall be used, a small setting must be applied in the project configuration before the project is compiled. The project configuration can be changed by using the command idf.py menuconfig in the ESP-IDF command line tool. After opening the menu, the setting can be applied under: Component config > PHY. This setting will make the PAN9520 use the phy init data binary. Moreover, the default partition table will include a corresponding partition at address 0x8000, to which the binary must be flashed. Please see the ESP-IDF documentation for details:

https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32s2/api-

reference/kconfig.html?highlight=support%20multiple%20phy#config-esp32-phy-init-data-in-partition

(accessed on 30.04.2021). Using a Binary with Multiple Phy Init Data Sets It is also possible to create a binary that contains phy init data sets for several regions. The binary data is then selected depending on the used country code. Please see the ESP-IDF documentation for details: https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32s2/api-

reference/kconfig.html?highlight=support%20multiple%20phy#config-esp32-support-multiple-phy-init-data-

bin (accessed on 30.04.2021). Further Reading Phy init data documentation:

https://www.espressif.com/sites/default/files/documentation/esp32_phy_init_bin_parameter_configuration_ guide_en.pdf (accessed on 30.04.2021) PHY project configuration: https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32s2/api-

reference/kconfig.html?highlight=support%20multiple%20phy#phy (accessed on 30.04.2021) Module Integration Guide Rev. 1.0 Page 29 of 47 PAN9520 Wi-Fi Module 6.1.2.2 Editing the Phy Init Data in the Source Code 6 Regulatory and Certification Information Per deault, the phy init data set defined in the source code is used by the PAN9520. Therefore, adapting this data is also an option to comply with the regulations. The data can be found in the ESP-IDF folder: [ESP-IDF] > components > esp_wifi > esp32s2 > include >

phy_init_data.h. The structure phy_init_data of type phy_init_data_t contains the configuration bytes. These are the same as described in section 6.1.2.1 Using phy_init_data Binary, but the eight start and end bytes are missing. Therefore, the byte enumeration is decreased by eight. You can find code examples for RED (EU) and FCC / IC (USA and Canada) below. Module Integration Guide Rev. 1.0 Page 30 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information

* @brief Structure containing default recommended PHY initialization pa-

rameters. static const esp_phy_init_data_t phy_init_data= { {

3, 0, 0x04, 0x05, 0x04, 0x05, 0x05, 0x04, 0x06, 0x06, 0x06, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0x05, 0x09, 0x06, 0x05, 0x03, 0x06, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, Module Integration Guide Rev. 1.0 Page 31 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information 0xf4, 0xf8, 0xf8, 0xf0, 0xf0, 0xf0, 0xe0, 0xe0, 0xe0, 0x18, 0x18, 0x18, 56, 56, 56, 56, 56, 52, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0,

/* Start of Power Value Definitions */

/* Start of Power Settings (Modulation) */

// byte 44 (byte 52 in binary)

// byte 45 (byte 53 in binary)

// byte 46 (byte 54 in binary)

// byte 47 (byte 55 in binary)

// byte 48 (byte 56 in binary)

// byte 49 (byte 57 in binary)

// byte 50 (byte 58 in binary)

// byte 51 (byte 59 in binary)

// byte 52 (byte 60 in binary)

// byte 53 (byte 61 in binary)

// byte 54 (byte 62 in binary)

// byte 55 (byte 63 in binary)

// byte 56 (byte 64 in binary)

// byte 57 (byte 65 in binary)

// byte 58 (byte 66 in binary)

// byte 59 (byte 67 in binary)

// byte 60 (byte 68 in binary)

// byte 61 (byte 69 in binary)

// byte 62 (byte 70 in binary)

/* Start of Power Limit Settings (Channels) */

Module Integration Guide Rev. 1.0 Page 32 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information

// byte 63 (byte 71 in binary)

// byte 64 (byte 72 in binary)

// byte 65 (byte 73 in binary)

// byte 66 (byte 74 in binary)

// byte 67 (byte 75 in binary)

// byte 68 (byte 76 in binary)

// byte 69 (byte 77 in binary)

// byte 70 (byte 78 in binary)

// byte 71 (byte 79 in binary)

// byte 72 (byte 80 in binary)

// byte 73 (byte 81 in binary)

// byte 74 (byte 82 in binary)

// byte 75 (byte 83 in binary)

// byte 76 (byte 84 in binary)

// byte 77 (byte 85 in binary)

// byte 78 (byte 86 in binary)

// byte 79 (byte 87 in binary)

// byte 80 (byte 88 in binary) 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, Module Integration Guide Rev. 1.0 Page 33 of 47 6 Regulatory and Certification Information PAN9520 Wi-Fi Module 0, 0, 0, 0, 0, 0, 0,

Phy Init Data for RED (above) Module Integration Guide Rev. 1.0 Page 34 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information

* @brief Structure containing default recommended PHY initialization pa-

rameters. static const esp_phy_init_data_t phy_init_data= { {

3, 0, 0x04, 0x05, 0x04, 0x05, 0x05, 0x04, 0x06, 0x06, 0x06, 0x05, 0x06, 0x00, 0x00, 0x00, 0x00, 0x05, 0x09, 0x06, 0x05, 0x03, 0x06, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, Module Integration Guide Rev. 1.0 Page 35 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information 0xf4, 0xf8, 0xf8, 0xf0, 0xf0, 0xf0, 0xe0, 0xe0, 0xe0, 0x18, 0x18, 0x18, 72, 64, 60, 56, 52, 48, 1, 1, 1, 1, 1, 2, 3, 4, 0, 0, 0, 2, 0x04,

/* Start of Power Value Definitions */

/* Start of Power Settings (Modulation) */

// byte 44 (byte 52 in binary)

// byte 45 (byte 53 in binary)

// byte 46 (byte 54 in binary)

// byte 47 (byte 55 in binary)

// byte 48 (byte 56 in binary)

// byte 49 (byte 57 in binary)

// byte 50 (byte 58 in binary)

// byte 51 (byte 59 in binary)

// byte 52 (byte 60 in binary)

// byte 53 (byte 61 in binary)

// byte 54 (byte 62 in binary)

// byte 55 (byte 63 in binary)

// byte 56 (byte 64 in binary)

// byte 57 (byte 65 in binary)

// byte 58 (byte 66 in binary)

// byte 59 (byte 67 in binary)

// byte 60 (byte 68 in binary)

// byte 61 (byte 69 in binary)

// byte 62 (byte 70 in binary)

/* Start of Power Limit Settings (Channels) */

Module Integration Guide Rev. 1.0 Page 36 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information

// byte 63 (byte 71 in binary)

// byte 64 (byte 72 in binary)

// byte 65 (byte 73 in binary)

// byte 66 (byte 74 in binary)

// byte 67 (byte 75 in binary)

// byte 68 (byte 76 in binary)

// byte 69 (byte 77 in binary)

// byte 70 (byte 78 in binary)

// byte 71 (byte 79 in binary)

// byte 72 (byte 80 in binary)

// byte 73 (byte 81 in binary)

// byte 74 (byte 82 in binary)

// byte 75 (byte 83 in binary)

// byte 76 (byte 84 in binary)

// byte 77 (byte 85 in binary)

// byte 78 (byte 86 in binary)

// byte 79 (byte 87 in binary)

// byte 80 (byte 88 in binary) 0x04, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04, 0x04, 0xAA, 0xAA, 0xAA, 0x66, 0x66, 0x66, 0xA6, 0xAA, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, Module Integration Guide Rev. 1.0 Page 37 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information 0, 0, 0, 0, 0, 0, 0,

Phy Init Data for FCC / IC (above) 6.2 General Certification Information For further certification requests for other radio software please contact Panasonic 8 Contact Details. 6.3 Federal Communications Commission (FCC) for US 6.3.1 FCC Statement The following FCC statement has to be printed in the OEM end product user information:

This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. The device meets the requirements for modular transmitter approval as detailed in FCC public Notice DA00-1407. The transmitter 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. 6.3.2 Caution The following FCC caution has to be printed in the OEM end product user information:

The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by Panasonic Industrial Devices Europe GmbH may void the user's authority to operate the equipment. Module Integration Guide Rev. 1.0 Page 38 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information 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 that 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, Connect the equipment into an outlet on a circuit different from that to which the receiver is Increase the separation between the equipment and receiver, connected, Consult the dealer or an experienced radio/TV technician for help. 6.3.3 Label Requirements The following labelling requirements have to be implemented on the OEM end product:

The OEM must ensure that FCC labelling requirements are met. This includes a clearly visible label on the outside of the OEM enclosure specifying the appropriate Panasonic FCC identifier for this product as well as the FCC notice above. The FCC identifier is FCC ID: T7V9520. This FCC identifier is valid for the PAN9520. The end product must in any case be labelled on the exterior with:

"Contains FCC ID: T7V9520"

Due to the PAN9520 model size, the FCC identifier is displayed in the installation instruction only and it cannot be displayed readable on the modules label due to the limited size. 6.3.4 Antenna Warning The following Antenna has to be followed by the OEM:

This antenna warning refers to the device with the model number PAN9520. The device is tested with a integrated antenna listed below. When integrated into the OEMs product, these fixed antennas require installation preventing end users from replacing them with non-approved antennas. Any antenna not in the following table must be tested to comply with FCC Section 15.203 for unique antenna connectors and with Section 15.247 for emissions. Module Integration Guide Rev. 1.0 Page 39 of 47 PAN9520 Wi-Fi Module 6.3.5 Approved Antenna List 6 Regulatory and Certification Information Item Part Number Manufacturer Frequency Band Type Max. Gain (dBi) 1 ANT016008LCS2442MA1 TDK 2.4GHz Chip Antenna 1.6 6.3.6 RF Exposure To comply with FCC RF Exposure requirements, the OEM must ensure that only antennas from the Approved Antenna List are installed 6.3.5 Approved Antenna List. The preceding statement must be included as a CAUTION statement in manuals for products operating with the approved antennas to alert users on FCC RF Exposure compliance. Any notification to the end user of installation or removal instructions about the integrated radio module is not allowed. The radiated output power of the PAN9520 with a mounted ceramic antenna

(FCC ID: T7V9520) is below the FCC radio frequency exposure limits. Nevertheless, the PAN9520 shall be used in such a manner that the potential for human contact during normal operation is minimized. End users may not be provided with the module installation instructions. OEM integrators and end users must be provided with transmitter operating conditions for satisfying RF exposure compliance. The end customer has to assure that the device has a distance of more than 20cm from the human body under all circumstances. If the end customer application intends to use the PAN9520 in a distance smaller 20 cm from the human body, SAR evaluation has to be done by the OEM. The end customer equipment must meet the actual Safety/Health requirements according to FCC. Module Integration Guide Rev. 1.0 Page 40 of 47 6.4 PAN9520 Wi-Fi Module Innovation, Science, and Economic Development (ISED) for Canada 6 Regulatory and Certification Information The following IC rules have to be followed by end product OEMs:

The PAN9520 is licensed to meet the regulatory requirements of ISED. English License ID:

IC: 216Q-9520 HVIN:

ENW49D01A1KF ENW49D02A1KF Manufacturers of mobile, fixed or portable devices incorporating this module are advised to clarify any regulatory questions and ensure compliance for SAR and/or RF exposure limits. Users can obtain Canadian information on RF exposure and compliance from www.ic.gc.ca. This device has been designed to operate with the antennas listed in Approved Antenna List, having a maximum gain of 1.6dBi. Antennas not included in this list or having a gain greater than 1.6dBi are strictly prohibited for use with this device. The required antenna impedance is 50 ohms. The antenna used for this transmitter must not be co-located or operating in conjunction with any other antenna or transmitter without the need of re-assessment of conformity by ISED. Due to the model size, the IC identifier is displayed in the installation instruction and on the package label only. It cannot be displayed readable on the modules label due to the limited size. The end customer has to assure that the device has a distance of more than 20cm from the human body under all circumstances. If the end customer application intends to use the PAN9520 in a distance smaller 20 cm from the human body, SAR evaluation has to be done by the OEM. The end customer equipment must meet the actual Safety/Health requirements according to ISED. Module Integration Guide Rev. 1.0 Page 41 of 47 PAN9520 est garanti conforme aux dispositions rglementaires dIndustry Canada (ISED). 6 Regulatory and Certification Information PAN9520 Wi-Fi Module French License:

HVIN:

IC: 216Q-9520 ENW49D01A1KF ENW49D02A1KF Il est recommand aux fabricants dappareils fixes, mobiles ou portables de consulter la rglementation en vigueur et de vrifier la conformit de leurs produits relativement aux limites dexposition aux rayonnements radiofrquence ainsi quau dbit dabsorption spcifique maximum autoris. Des informations pour les utilisateurs sur la rglementation Canadienne concernant lexposition aux rayonnements RF sont disponibles sur le site www.ic.gc.ca. Ce produit a t dvelopp pour fonctionner spcifiquement avec les antennes listes dans le tableau Approved Antenna List, prsentant un gain maximum de 1.6dBi. Des antennes autres que celles listes ici, ou prsentant un gain suprieur 1.6dBi ne doivent en aucune circonstance tre utilises en combinaison avec ce produit. Limpdance des antennes compatibles est 50 Ohm. Lantenne utilise avec ce produit ne doit ni tre situe proximit dune autre antenne ou dun autre metteur, ni tre utilise conjointement avec une autre antenne ou un autre metteur. En raison de la taille du produit, lidentifiant IC est fourni dans le manuel dinstallation. Le client final doit s'assurer que l'appareil se trouve en toutes circonstances une distance de plus de 20 cm du corps humain. Si le client final envisage une application ncessitant d'utiliser le PAN9520 une distance infrieure 20 cm du corps humain, alors le FEO doit faire l'valuation DAS. L'quipement du client final doit rpondre aux exigences actuelles de scurit et de sant selon lISED. Module Integration Guide Rev. 1.0 Page 42 of 47 6 Regulatory and Certification Information The following IC notice has to be printed in English and French in the OEM end product user information:

PAN9520 Wi-Fi Module IC Notice 6.4.1 English The device PAN9520, including the integrated antenna mentioned in 6.3.5 Approved Antenna List, complies with Canada RSS-GEN Rules. The device meets the requirements for modular transmitter approval as detailed in RSS-Gen. Operation is subject to the following two conditions:

This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation. Le prsent appareil PAN9520, les antennes y compris 6.3.5 Approved Antenna List est conforme aux CNR-Gen 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. French Module Integration Guide Rev. 1.0 Page 43 of 47 PAN9520 Wi-Fi Module 6.4.2 Labeling Requirements English 6 Regulatory and Certification Information The following IC labelling requirements have to be followed by end product OEMs:

Labeling Requirements The OEM must ensure that IC labelling requirements are met. This includes a clearly visible label on the outside of the OEM enclosure specifying the appropriate Panasonic IC identifier for this product as well as the IC Notice above. The IC identifier is: IC: 216Q-9520 This IC identifier is valid for the PAN9520 module. In any case, the end product must be labelled on the exterior with:

French

"Contains IC: 216Q-9520 Obligations dtiquetage Les fabricants dquipements dorigine (FEO) en anglais Original Equipment Manufacturer (OEM) doivent sassurer que les obligations dtiquetage IC du produit final sont remplies. Ces obligations incluent une tiquette clairement visible lextrieur de lemballage externe, comportant lidentifiant IC du module Panasonic inclus, ainsi que la notification ci-dessus. L identifiant IC est: IC: 216Q-9520 Cet identifiant est valide pour module PAN9520. Dans tous les cas les produits finaux doivent indiquer sur leur emballage externe la mention suivante:

"Contient IC: 216Q-9520 Module Integration Guide Rev. 1.0 Page 44 of 47 PAN9520 Wi-Fi Module 6 Regulatory and Certification Information 6.5 European Conformity According to RED (2014/53/EU) All modules described in this Module Integration Guide comply with the standards according to the following LVD (2014/35/EU), EMC-D (2014/30/EU) together with RED (2014/53/EU) articles. Standards The end product OEM has to re-assess the conformity of the end product to EU regulations, but can use the PAN9520 RED pre-assessment to shorten this procedure. The RED EU Type Examination Certificate No. T818887N-01 issued by the Notified Body 0682 can be used for the OEM end product conformance assessment. If a Notified Body has been contracted for the end product conformity assessment, it should be noted that this EU Type Examination Certificate should be used for conformance assessment. As a result of the OEM end product conformity assessment procedure described in 2014/53/EU Directive and other applicable EU directives, the end customer equipment should be labelled as follows:

The requirements for CE marking are described in regulation (EU) No. 765/2008 Annex II. The end customer has to assure that the device has a distance of more than 5cm from the human body under all circumstances. If the end customer application intends to use the PAN9520 in a distance smaller 5cm from the human body, SAR evaluation has to be repeated by the OEM. The end customer equipment must meet the actual Safety/Health requirements according to RED. PAN9520 and its model versions in the specified reference design can be used in all countries of the European Economic Area (Member States of the EU, European Free Trade Association States [Iceland, Liechtenstein, Norway]), Monaco, San Marino, Andorra, and Turkey. Module Integration Guide Rev. 1.0 Page 45 of 47 PAN9520 Wi-Fi Module 7 Restricted Use 7.1 Life Support Policy 7 Restricted Use This Panasonic Industrial Devices Europe GmbH product is not designed for use in life support appliances, devices, or systems where malfunction can reasonably be expected to result in a significant personal injury to the user, or as a critical component in any life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Panasonic customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Panasonic Industrial Devices Europe GmbH for any damages resulting. 7.2 Restricted End Use This Panasonic Industrial Devices Europe GmbH product is not designed for any restricted activity that supports the development, production, handling usage, maintenance, storage, inventory or proliferation of any weapons or military use. Transfer, export, re-export, usage or reselling of this product to any destination, end-user or any end-use prohibited by the European Union, United States or any other applicable law is strictly prohibited. Module Integration Guide Rev. 1.0 Page 46 of 47 PAN9520 Wi-Fi Module 8 Contact Details 8.1 Contact Us 8 Contact Details Please contact your local Panasonic Sales office for details on additional product options and services:

For Panasonic Sales assistance in the EU, visit https://eu.industrial.panasonic.com/about-us/contact-us Email: wireless@eu.panasonic.com For Panasonic Sales assistance in North America, visit the Panasonic website Sales & Support to find assistance near you at https://na.industrial.panasonic.com/distributors Please visit the Panasonic Wireless Technical Forum to submit a question at https://forum.na.industrial.panasonic.com 8.2 Product Information Please refer to the Panasonic Wireless Connectivity website for further information on our products and related documents:

For complete Panasonic product details in the EU, visit http://pideu.panasonic.de/products/wireless-modules.html For complete Panasonic product details in North America, visit http://www.panasonic.com/rfmodules Module Integration Guide Rev. 1.0 Page 47 of 47

3 ES 2 1 4 5 6 7 8 HW/SW PAN9520 M/N: ENW49D01A1KF YYWWDLL 12345678 IC: 216Q-9520 FCC ID: T7V9520 9 Viewer does not support full SVG 1.1 2D Data Code 10

3 ES 2 1 4 5 6 7 8 HW/SW PAN9520 M/N: ENW49D02A1KF YYWWDLL 12345678 IC: 216Q-9520 FCC ID: T7V9520 9 Viewer does not support full SVG 1.1 2D Data Code 10

CONFIDENTIALITY REQUEST for Certification Service in USA Title/Model PAN9520 Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 2021-05-17 TO WHOM IT MAY CONCERN Pursuant to Paragraphs 0.457 and 0.459 of the Commissions Rules (47 C.F.R.) and Section 552(b)(4) of the Freedom of Information Act, we request confidentiality for the following products:

FCC ID Number Product T7V9520 For the product stated above, we request permanent confidentiality for exhibits which contain Operational Description, Block Diagram, Schematics, Parts Lists or Tune Up Information. The above exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. If you have any questions, please feel free to contact me at the address shown below. Sincerely,

(signed) Name: Olaf Knoth Company: Panasonic Industrial Devices Europe GmbH Address: Zeppelinstrae 19, 21337 Lneburg Phone: +49 4131 899 257 Email: Olaf.knoth@eu.panasonic.com

Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 Certification and Engineering Bureau Industry Canada Spectrum Engineering Branch 3701 Carling Avenue, Building 94 Ottawa, Ontario K2H 8S2 Subject: FCC / ISED Modular Approval Statement FCC ID:

Only applicable for ISED certification:

IC Company Number:

UPN:

HVIN:

(Hardware Version Identification Number) HMN:

(Host Marketing Name) TO WHOM IT MAY CONCERN PMN:

(Product Marketing Name) FVIN:

(Firmware Version Identification Number) No *

Yes Pursuant to Paragraphs RSP-100 Issue 10 November 2014 Item 7.3 and CFR 15.212, we herewith declare for our module. Modular approval requirement

(a) The radio elements must have the radio frequency circuitry be shielded. Physical/discrete and tuning capacitors may be located external to the shield, but must be on the module assembly.

*Please provide a detailed explanation if the answer is No.:

(b) 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.

*Please provide a detailed explanation if the answer is No.:

(c) 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.

*Please provide a detailed explanation if the answer is No.:

(d) 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.

*Please provide a detailed explanation if the answer is No.:

Yes No *

(e) 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.

*Please provide a detailed explanation if the answer is No.:

(f) The module shall comply with the Category I equipment labeling requirements and CFR 15.212(a)(1)(vi).

*Please provide a detailed explanation if the answer is No.:

(g) The module shall comply with applicable RSS-102 exposure requirements and any applicable FCC RF exposure requirement which are based on the intended use/configurations.

*Please provide a detailed explanation if the answer is No.:

Only applicable for ISED certification:

(h) Is the modular device for an Industry Canada licensed exempt service?

(i) The modular transmitter complies with all applicable FCC rules. Instructions for maintaining compliance are given in the user instructions. If you have any questions, please feel free to contact us at the address shown below Best Regards, Company Name:

Company Address:

Contact Name:

Signature:

Phone:

Fax:

Email:

Signature Date:

INFO for applicant: LMA may be granted when one or more of the requirements in the table above cannot be demonstrated. LMA will also be issued in those instances where applicants can demonstrate that they will retain control over the final installation of the device, such that compliance of the end product is assured. In such cases, an operating condition on the LMA for the module must state that the module is only approved for use when installed in devices produced by a specific manufacturer. When LMA is sought, the application for equipment certification must specifically 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. 2019-03-25