FCC ID: A3LWCB940M Wi-Fi/BT Transceiver

Operation Description of WCB940M(WCB941M) WCB940M(WCB941M) is a highly integrated single chip which features a low power 2x2 11a/b/g/n/ac/ax dual band Wi-Fi subsystem and a Bluetooth v5.2 subsystem, offering feature-rich wireless connectivity at high standards, and delivering reliable, cost-effective throughput from an extended distance. 1. Introduction 2. Product Details

-Data Modulation DSSS:CCK,BPSK,QPSK for 802.11b OFDM:BPSK,QPSK,16QAM,64QAM,256QAM for 802.11a,g,n,ac,ax FHSS:GFSK,OQPSK, 8DPSK, /4DPSK for Bluetooth

-Frequency Range 2.4GHz 2402-2480MHz, 2412-2472MHz 5GHz 4905-5915MHz 6GHz 5930-7115MHz

-Output Power tolerance Output power 2.5dBm

-Recommended Operating conditions Operating voltage Operating temperature(ambient) Min 4.5

-20 Typ. 5 25 Max 5.5 50 Unit V C Version 1.0 XuGuang Tech page 1 of 4 Approval Statement CE approval

-This device is restricted to indoor use only within the 5.15 ~ 5.35GHz Band. (Europe) Frequency Range and Maximum Output Power (EIRP) 2400 MHz to 2483.5 MHz : Below 20 dBm for Bluetooth 2400 MHz to 2483.5 MHz : Below 20 dBm for 802.11b/g/n 5150MHz to 5250 MHz : Below 23 dBm for 802.11a,n,ac 5350MHz to 5725 MHz : Below 20 dBm for 802.11a,n,ac 5725MHz to 5875 MHz : Below 14 dBm for 802.11a,n,ac FCC approval This device complies with Part 15 of the FCC`s 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 undesirable operation. To satisfy FCC exterior labeling requirements, the following text must be placed on the exterior of the end product. Contains Transmitter module FCC ID: A3LWCB940M 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 Version 1.0 XuGuang Tech page 2 of 4 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.

-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.

-The OEM integrator is responsible for ensuring the end-user has no manual instruction to remove or install module.

-The module is limited to installation in mobile or fixed applications. IC approval This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canadas licence-exempt RSS(s). Operation is subject to the following two conditions:

(1) This device may not cause interference.

(2) This device must accept any interference, including interference that may cause undesired operation of the device. Lmetteur/rcepteur exempt de licence contenu dans le prsent appareil est conforme aux CNR dInnovation, Sciences et Dveloppement conomique Canada applicables aux appareils radio exempts de licence. Lexploitation est autorise aux deux conditions suivantes :

(1) Lappareil ne doit pas produire de brouillage;

compromettre le fonctionnement.

(2) Lappareil doit accepter tout brouillage radiolectrique subi, mme si le brouillage est susceptible den The host device must be labeled to display the Industry Canada certification number of the module. Contains transmitter module IC:649E-WCB940M Le dispositif d'accueil doivent tre tiquets pour afficher le numro de certification d'Industrie Canada du module. Contient module metteur IC :649E-WCB940M IMPORTANT NOTE This device complies with FCC & IC radiation exposure limits set forth for an uncontrolled environment. This device should be installed and must not be co-located or operating in conjunction with any other antenna or transmitter. This device is intended only for OEM integrators under the following conditions:

1) This module may not be co-located with any other transmitters or antennas. 2) The antenna must be installed such that 20cm is maintained between the antenna and users. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements with this module installed. In the event that these conditions cannot be met, then the FCC & IC authorizations are no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product including this module and obtaining separate FCC & IC authorizations. FCC regulations restrict operation of this device to indoor use only. The operation of this device is prohibited on oil platforms, cars, trains, boats, and aircraft, except that operation of this device is permitted in large aircraft while flying XuGuang Tech page 3 of 4 above 10,000 feet. Version 1.0 Operation of transmitters in the 5.925-7.125 GHz band is prohibited for control of or communications with unmanned aircraft systems. un autre metteur. Cet appareil est conforme aux limites de la FCC et IC exposition aux radiations dans un environnement non contrl. Cet appareil doit tre install et ne doit pas tre co-localises ou oprant en conjonction avec une autre antenne ou Cet appareil est conu uniquement pour les intgrateurs OEM dans les conditions suivantes :

1 ) L' antenne doit tre installe de telle sorte que 20 cm est maintenue entre l'antenne et les utilisateurs . 2 ) Ce module ne peut pas tre co-localis avec d'autres metteurs ou des antennes . Aussi longtemps que deux conditions prcites sont remplies, le test du transmetteur supplmentaires ne seront pas tenus. Toutefois, l'intgrateur OEM est toujours responsable de tester leurs produits finis pour toutes les exigences de conformit supplmentaires avec ce module install. Dans le cas o ces conditions ne peuvent pas tre remplies, alors la FCC et IC autorisations ne sont plus considrs comme valides et l'ID de la FCC ne peut pas tre utilis sur le produit final. Dans ces circonstances, l'intgrateur OEM sera responsable de rvaluer le produit final, y compris l'obtention de ce module et spare de la FCC et IC Autorisations User Information Caution: Any changed or modifications not expressly approved by the party responsible for compliance could void the user`s authority to operate this equipment. Attention: Toute chang ou modifications non expressment approuvs par la partie responsable de la conformit pourraient annuler l'utilisateur `autorit de faire fonctionner cet quipement.

-This device is restricted to indoor use only within the 5.15 ~ 5.25GHz Band. (Canada)

-User should also be advised that high-power radars are allocated as primary users (i.e. priority users) of the bands 5250-5350 MHz and 5650-5850 MHz and that these radars could cause interference and/or damage to LE-LAN devices.

-Cet appareil est restreint l'utilisation l'intrieur seulement dans la bande 5.15 ~ 5.25GHz. Version 1.0 XuGuang Tech page 4 of 4

CTK Co., Ltd.

(Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Label Photographs

CTK Co., Ltd.

(Ho-dong), 113, Yejik-ro, Cheoin-gu, Yongin-si, Gyeonggi-do, Korea Tel: +82-31-339-9970 Fax: +82-31-624-9501 www.e-ctk.com Label Photographs

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Letter for KDB 484596 Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2021/11/08 SUBJECT: FCC Application for (FCC ID : A3LWCB940M) To Whom it may concern:

A3LWCB940M We request reuse of FCC ID: A3LWCA942M (MODEL: WCA942M, WCA943M) test data for FCC ID:

Here, the FCC ID: A3LWCA942M (MODEL: WCA942M, WCA943M) is already approved. That is, the model where the FCC ID: A3LWCA942M and FCC ID: A3LWCB940M are the same as previously certified, The device is identical to the previously certified except for the changes as below for details;

1. Change Output Power Output Power change in 802.11b. Except for 802.11b, the rest of the technology is the same as before. 2. Change Circuit

- IR Sensor : DC 3.3 V voltage supply and pin arrangement order changed.

- MIC GND : Independent MIC GND applied.

- Color sensor and IR Receiver : 2-in-1 sensor -> Each separate sensor applied. Except for the circuit below, the transmitter schematics and circuits including the antenna are electrically identical. The Samsung Electronics Co., Ltd. takes full responsibility that the test data as referenced table 1 below represents compliance for FCC ID: A3LWCB940M. 19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Data type FCC Rule Parts Operating Frequency range (MHz) Technology Test Report No.

[Table 1]

15C 15C 15C Reference data 2 402 2 480 2 402 2 480 Bluetooth CTK-2020-04544, CTK-2020-04551 Bluetooth LE CTK-2020-04545, CTK-2020-04552 2 412 2 472 WLAN 802.11g/n/ax 15E 5 180 5 825 WLAN 802.11a/n/ac/ax CTK-2020-04554, CTK-2020-04556, CTK-2020-04546, CTK-2020-04553, CTK-2021-03416, CTK-2021-03421 CTK-2020-04547, CTK-2020-04549, CTK-2021-03418, CTK-2021-03422 CTK-2021-01434, CTK-2021-01436, CTK-2021-03419, CTK-2021-03423 15E 5 955 7 025 WLAN 802.11ax New data 15C 2 412 2 472 WLAN 802.11b CTK-2021-04055 This authorization is valid until further written notice from the applicant. Regards, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Special Power of Attorney Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. Product/ Model Number: Wi-Fi/BT Transceiver / WCB940M, WCB941M I, JENNI CHUN of SAMSUNG Electronics Co., Ltd. hereby appoint Youngjoong Noh of SAMSUNG Electronics Co., Ltd. to represent me to act on my behalf to do any and all of the following :

Sign on my behalf the agency, anti-drug and confidentiality cover letters and apply to FCC for the products. The right, powers and authority in fact to exercise any and all of the rights and powers herein granted shell commence and be in full force from 11/08/2021 and continue to 11/08/2022 effective unless specifically terminated by either party. This authorization is limited to the product of as following:

FCC ID: A3LWCB940M Dated 11/08/2021, JENNI CHUN Sincerely,. NAME: JENNI CHUN TITLE: General Manager, Regulatory & Environmental Affairs Applicant: Samsung Electronics America, Inc Address: 19 Chapin Rd, Building D. Pine Brook, NJ 07058

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Special Power of Attorney I, Youngjoong Noh of Samsung Electronics Co., Ltd. hereby authorize appoint Wonjae Hwang of CTK Co., Ltd. to represent me to act on my behalf to do any and all of the following :

Sign on my behalf the agency, anti-drug and confidentiality cover letters and apply to FCC for the products. The right, powers and authority in fact to exercise any and all of the rights and powers herein granted shell commence and be in full force from 2021/11/08 and continue to effective unless specifically terminated by either party. Applicant : Samsung Electronics Co., Ltd. FCC ID : A3LWCB940M Dated 2021/11/08 Sincerely, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

MODEL ATTESTATION COVER LETTER Date: 2021-11-08 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCB940M Product/ Model Number : Wi-Fi/BT Transceiver / WCB940M, WCB941M Addition of model name as follow:

- Basic Model name : WCB940M

- Variant Model name : WCB941M The device has the same electrical characteristics except for the antenna. Sincerely, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: A3LWCB940M Pursuant to Sections 0.457 and 0.459 of the Commissions Rules, we hereby request confidential treatment of information accompanying this application as outlined below:

Exhibit Type Block Diagram Schematics Parts List Operational description File Name

(WCB940M,WCB941M)_Block Diagram.pdf

(WCB940M)_Schematics.pdf

(WCB941M)_Schematics.pdf

(WCB940M)_Schematics PCB Layout.pdf

(WCB941M)_Schematics PCB Layout.pdf

(WCB940M)_Part List.pdf

(WCB941M)_Part List.pdf

(WCB940M, WCB941M)_Operational Description.pdf

(WCB940M)_Antenna Specification Operational Description.pdf

(WCB941M)_Antenna Specification Operational Description.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Pursuant to DA04-1705 June 15, 2004 of the Commissions public notice, we also request temporary confidential treatment of information accompanying this application as outlined below:

Exhibit Type Sincerely, File Name Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd. Rev 11/20/07

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Attestation Letter Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID : A3LWCB940M Product/ Model Number: Wi-Fi/BT Transceiver / WCB940M, WCB941M 1. This device will only associate with a low power indoor AP for WIFI 6E operations. Hotspot Mode, ad-hoc and any other P2P service is disabled for WIFI 6E operations. This device will not connect directly to another client device using WIFI 6E frequencies. 2. This device will always initiate transmission under the control of a low power indoor AP or subordinate except for brief transmissions before joining a network. These short messages will only occur if the client has detected an indoor AP or subordinate operating on a channel. These brief messages will have a time-out mechanism such that if it does not receive a response from an AP it will not continually repeat the request. 3. The transmissions will be lower or equal to the power advertised by the indoor low-power access point and never above the maximum output power allowed by the FCC grant for equipment class 6XD. 4. Contention-based protocol as demonstrated in the test report is permanently embedded in the module and is not host-dependent. 5. This device is prohibited for control of or communications with unmanned aircraft systems, including drones. Sincerely,. Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

MODULAR APPROVAL LETTER 2021-11-08 Applicant : Samsung Electronics Co., Ltd. FCC ID : A3LWCB940M We would like to answer for Single Modular Approval in accordance with the requirement of rule part 15.212 as described below No. Requirements Comment Comply (Y/N) The radio element of the modular transmitter has its own shielding The modular transmitter must have buffered modulation data/inputs (if such inputs are provided) The modular transmitter must have its own power supply regulation. The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. The modular transmitter must be labeled with its own FCC ID. If the FCC ID is not visible when the module is installed inside another device, then the outside of the device into which the module is installed must also display a label referring to the enclosed module The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements The modular transmitter must comply with any applicable RF exposure requirements Refer to the external photo All input to the modules are buffered through microprocessor inputs. Internal power regulators Refer to the Block-diagram Refer to the internal photo The EUT was tested in a standalone configuration via a SD extension cable Refer to the test setup photo Refer to the user manual Refer to the user manual Refer to the RF exposure statement for more details. Y Y Y Y Y Y Y Y 1 2 3 4 5 6 7 8 Sincerely, Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

FCC DFS Uniform Spreading Declaration Date: 2021-11-08 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCB940M Product/ Model Number : Wi-Fi/BT Transceiver / WCB940M, WCB941M Regarding Uniform Spreading requirements for DFS operation identified in FCC 06-96 in ET Docket 03-

122;

"Uniform Channel Spreading: The spreading of U-NII device Operating Channels over the 5250-

5350 MHz and/or 5470-5725 MHz bands to avoid dense clusters of devices operating on the same Channel."

We declare the device provides on aggregate a Uniform Spreading of the Operating Channels across the entire band. This applies to the 5250-5350 MHz and/or 5470-5725 MHz bands. Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

11/17/21, 12:08 PM FCC TCB Electronic Filing Site 367285 11/17/2021 Date of Submission:

11/17/2021 Inquiry Tracking Number:

Date of Original Submission:

Inquiry Details on 11/17/2021:

Inquiry:

Dear FCC Lab Staff:

Samsung Electronics Co Ltd has filed an application for a Wi-Fi modular transmitter that, according to KDB 388624 D02 Pre-Approval Guidance List v17, requires a PAG approval prior to TCB approval. The items of concern are:

(UN6GHZ) U-NII devices authorized in U-NII Bands 5.925-7.125 GHz under guidance of KDB Publication 987594, except for the C2PC case specified in RF exposure, item code MOBPOR of this document. FCC ID: A3LWCB940M. Timco Engineering, Inc. We have completed the review and have no concern about the PAG aspects of this filing. We believe the application is acceptable and that all applicable FCC KDB guidance has been followed. We will upload the files to 731 Form E filing system and provide you with the TC numbers in our next correspondence. https://apps.fcc.gov/tcb/ValidateLogin.do 1/1

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

FCC Software Configuration Control Declaration Date: 2021-11-08 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attn: OET Dept. FCC ID: A3LWCB940M Product/ Model Number : Wi-Fi/BT Transceiver / WCB940M, WCB941M Regarding FCC Country Code Selection guidelines identified in KDB 594280 "Country Code Selection". All applications for equipment authorization for transmitters that can have radio parameters, or other technical parameters, reported to the Commission set by software must have an attestation indicating that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. We declare that no third party will have software, or configuration control, to program the device out of compliance of the technical rules under which it has been certified. Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.

19 Chapin Rd, Building D. Pine Brook, New Jersey Tel No : 973-808-6375 Fax No : -

Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21048 UNII Device Declaration Letter To whom it may concern:

We have declared below featured for FCC equipment authorization, Device FCC ID: A3LWCB940M

(1) Operational Mode :

Master N/A Client with Radar detection capability Client without radar detection capability,

(2) Active / Passive Scanning , adhoc mode access point capability Frequency Band (MHz) Active Scanning

(the device can transmit a probe

(beacon)) 2412-2472 5180-5240 5190-5230 5210 5745-5825 5755-5795 5775 5955-6415 5965-6405 5985-6385 6435-6515 6445-6485 6465 6535-6855 6525-6845 6545-6865 6875-7115 6885-7085 6945-7025 Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No passive scanning

(where the device is can listen only with no probes) Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No Ad Hoc Mode capability Access point capability Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No No No No No No No No No No No No No No No No No No

(3) Country code selection ability Yes No If yes, pls explain how it was implemented:

(4) Meet 15.202 requirement Yes No pls check below :

A master device is defined as a device operating in a mode in which it has the capability to transmit without receiving an enabling signal. In this mode it is able to select a channel and initiate a network by sending enabling signals to other devices A client device is defined as a device operating in a mode in which the transmissions of the device are under control of the master. A device in client mode is not able to initiate a network.

(5) For client devices that have software configuration control to operate in different modes (active scanning in some and passive scanning in others) in different bands (devices with multiple equipment classes or those that operate on non- DFS frequencies) or modular devices which configure the modes of operations through software, the application must provide software and operations description on how the software and / or hardware is implemented to ensure that proper operations modes cannot be modified by end user or an installer. Does not apply

(If apply, pls help to provide explanation on it was implement, and how software was controlled) Apply Sincerely Youngjoong Noh / Staff Engineer Samsung Electronics Co., Ltd.