FCC ID: 2AATL-6233BUUB WIFI/Bluetooth MODULE

PRODUCT SPECIFICATION 6233B-UUB Wi-Fi Dual-band 1T1R 802.11a/b/g/n + Bluetooth 5.2 Combo Module Version:v1.0 Customer:

Customer P/N:

Signature:

Date:

Office: 14th floor, Block B, phoenix zhigu, Xixiang Street, Baoan District, Shenzhen Factory: NO.8, Litong RD., Liuyang Economic & Technical Development Zone, Changsha, CHINA TEL:+86-755-2955-8186 Website:www.fn-link.com FN-LINK TECHNOLOGY LIMITED 1 6233B-UUB Module Datasheet Part NO. Description Ordering Information FG6233BUUB-00 RTL8733BU-CG/802.11a/b/g/n/ WiFi+BT5.2, 1T1R, 13*15 ,USB, two-ANT, with shielding Target Power:

2.4G17/15/14 5.8G15/14 FN-LINK TECHNOLOGY LIMITED 2 6233BUUB CONTENTS 1. General Description ..................................................................................................5 1.1 Introduction ............................................................................................................5 1.2 Description .............................................................................................................5 2. Features......................................................................................................................6 3. Block Diagram ...........................................................................................................6 4. General Specification ................................................................................................7 4.1 WI-FI 2.4GHz RF Specification ..............................................................................7 4.2 WI-FI 5GHz RF Specification .................................................................................7 4.3 Bluetooth Specification...........................................................................................9 5. ID setting information.............................................................................................. 10 6. Pin Definition ........................................................................................................... 10 6.1 Pin Outline ........................................................................................................... 10 6.2 Pin Definition details ............................................................................................ 10 7. Electrical Specifications ......................................................................................... 12 7.1 Power Supply DC Characteristics ........................................................................ 12 7.2 Interface Circuit time series .................................................................................. 12 7.2.1 USB Bus Timing during Power On Sequence ......................................................... 12 7.2.2 Power off by 3.3V power sequence ......................................................................... 13 8. Size reference .......................................................................................................... 13 8.1 Module Picture ..................................................................................................... 13 8.2 Marking Description ............................................................................................. 14 8.3 Physical Dimensions ............................................................................................ 14 8.4 Layout Recommendation ..................................................................................... 15 9. The Key Material List ............................................................................................... 15 10. Reference Design .................................................................................................. 16 11. Recommended Reflow Profile .............................................................................. 16 12. RoHS compliance .................................................................................................. 16 13. Package .................................................................................................................. 17 13.1 Reel.................................................................................................................... 17 13.2 Carrier Tape Detail ............................................................................................. 17 13.3 Packaging Detail ................................................................................................ 18 14. Moisture sensitivity ............................................................................................... 18 FN-LINK TECHNOLOGY LIMITED 3 6233BUUB Revision History Version Date Contents of Revision Change Preparde Checked Approved V1.0 2022/10/27 New version LTK LTK QJP FN-LINK TECHNOLOGY LIMITED 4 6233BUUB 1. General Description 1.1 Introduction 6233BUUB is a highly integrated module with Realtek 8733BU-CG single-chip 802.11a/b/g/n 1T1R WLAN, and an integrated Bluetooth 5.2 combo chip with USB 2.0 multi-function. The highly integrated module makes the possibilities of web browsing,VoIP, video stream applications. With seamless roaming capabilities and advanced security, also could interact with different vendors802.11a/b/g/n 1x1 Access Points in the wireless LAN. The wireless module complies with IEEE 802.11 a/b/g/n standard and it can achieve up to a speed of 150Mbps when using 40MHz bandwidth. The integrated module provides USB2.0 interface for Wi-Fi. 1.2 Description Model Name 6233BUUB Product Description Support Wi-Fi/Bluetooth functionalities Dimension Wi-Fi Interface BT Interface L x W x H: 13 x 15 x2.3 (typical) mm Support USB 2.0 USB2.0 Operating temperature

-20C to 70C Storage temperature

-40C to 85C FN-LINK TECHNOLOGY LIMITED 5 6233BUUB 2. Features General 802.11a/b/g/n 1T1R WLAN and Bluetooth 5.2 combo chip Complete 802.11n solution for both 2.4GHz and 5GHz band 72.2Mbps receive PHY rate and 72.2Mbps transmit PHY rate using 20MHz bandwidth 150Mbps receive PHY rate and 150Mbps transmit PHY rate using 40MHz bandwidth Maximum data rate 54Mbps in 802.11g; and 150Mbps in 802.11n Host Interface USB Multi-Function for both BT (USB function 0) and WLAN (USB function 1) Bluetooth Features Supports Bluetooth muptiple Low Energy states Bluetooth 5.2 Dual Mode support: Simultaneous LE and BR/EDR Small SMT package 3. Block Diagram FN-LINK TECHNOLOGY LIMITED 6 6233BUUB 4. General Specification 4.1 WI-FI 2.4GHz RF Specification Feature WLAN Standard Frequency Range Description IEEE 802.11 b/g/n Wi-Fi compliant 2.400 GHz ~ 2.4835 GHz (2.4 GHz ISM Band) Number of Channels 2.4GHzCh1 ~ Ch14 Test Items Typical Value Output Power 802.11g /54Mbps : 15dBm 2 dB 802.11b /11Mbps : 17dBm 2 dB Spectrum Mask Freq. Tolerance Test Items SISO Receive Sensitivity

(11b,20MHz) @8% PER SISO Receive Sensitivity

(11g,20MHz) @10% PER SISO Receive Sensitivity

(11n,20MHz) @10% PER SISO Receive Sensitivity

(11n,40MHz) @10% PER Maximum Input Level 802.11n /MCS7 : 14dBm 2 dB Meet with IEEE standard 20ppm TYP Test Value

- 11Mbps PER @ -85 dBm

- 54Mbps PER @ -71 dBm

- MCS=7 PER @ -68 dBm

- MCS=7, PER @ -65 dBm 802.11b : -10 dBm 802.11g/n : -20 dBm EVM EVM -9dB EVM -25dB EVM -28dB Standard Value

-81

-67

-65

-62 Note: Other data rates transmit power are controlled by Power-by-Rate function of the driver. 4.2 WI-FI 5GHz RF Specification Feature WLAN Standard Frequency Range Description IEEE 802.11 a/n Wi-Fi compliant 5.150 GHz ~ 5.850 GHz (5.0 GHz Band) Number of Channels 5.0GHzPlease see the following table1 Test Items Typical Value Output Power 802.11a /54Mbps : 15dBm 2 dB 802.11n /MCS7 : 14dBm 2 dB Spectrum Mask Meet with IEEE standard FN-LINK TECHNOLOGY LIMITED 7 EVM EVM -25dB EVM -28dB Freq. Tolerance Test Items 20ppm TYP Test Value SISO Receive Sensitivity

(11a,20MHz) @10% PER SISO Receive Sensitivity

(11n,20MHz) @10% PER SISO Receive Sensitivity

(11n,40MHz) @10% PER

- 54Mbps PER @ -71 dBm

- MCS=7 PER @ -68 dBm

- MCS=7, PER @ -65 dBm Maximum Input Level 802.11a/n : -10 dBm Antenna Reference Small antennas with 0~2 dBi peak gain 6233BUUB Standard Value

-68

-65

-62 Note: Other data rates transmit power are controlled by Power-by-Rate function of the driver. 15GHz(20MHz) Channel table Band range Operating Channel Numbers Channel center frequencies(MHz) 5180MHz~5240MHz 5260MHz~5320MHz 5550MHz~5700MHz 5745MHz~5825MHz 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 FN-LINK TECHNOLOGY LIMITED 8 5180 5200 5220 5240 5260 5280 5300 5320 5500 5520 5540 5560 5580 5600 5620 5640 5660 5680 5700 5745 5765 5785 161 165 6233BUUB 5805 5825 4.3 Bluetooth Specification Feature Description General Specification Bluetooth Standard Bluetooth V5.2 Host Interface USB Antenna Reference Small antennas with 0~2 dBi peak gain Frequency Band 2402 MHz ~ 2480 MHz Number of Channels 79 channels Modulation GFSK, /4-DQPSK, 8-DPSK RF Specification Min(dBm) Typical(dBm) Max(dBm) Output Power (Class 1) 2 8 Sensitivity @ BER=0.1%

for GFSK (1Mbps) Sensitivity @ BER=0.01%

for /4-DQPSK (2Mbps) Sensitivity @ BER=0.01%

for 8DPSK (3Mbps) GFSK (1Mbps):-20dBm Maximum Input Level

/4-DQPSK (2Mbps) :-20dBm 8DPSK (3Mbps) :-20dBm 10

-70

-70

-70 FN-LINK TECHNOLOGY LIMITED 9 6233BUUB 5. ID setting information WI-FI Vendor ID Product ID

6. Pin Definition 6.1 Pin Outline 6.2 Pin Definition details PIN 1 2 3~8 9 10~11 12 Name Type Description Voltage GND ANT0 GND ANT1 GND NC Ground connections I/O RF I/O BT&5G WIFI Ground connections I/O RF I/O 2.4G WIFI Ground connections Not connected FN-LINK TECHNOLOGY LIMITED 10 13 14 15 GND NC NC 16 WL_WAKE_HOST NC GND 6233BUUB Ground connections Not connected Not connected O WLAN to wake-up HOST Not connected Ground connections 17~22 23 24 25 26~27 28 29~30 31 32 33 34 35 36 37 38 39 40~44 45 46 47 48 49 50 CHIP_EN I Enable pin for chipset. Pull low to enable 3.3V GND NC GND NC GND Ground connections Not connected Ground connections Not connected Ground connections USB_DP I/O USB2.0 differential pair D+ for WLAN and Bluetooth USB2.0 differential pair D- for WLAN USB_DM GND NC VCC33 GND NC GND NC DEBUG_TX GND NC GND I/O and Bluetooth Ground connections Not connected 3.3V P Main power input 3.3V Ground connections Not connected Ground connections Not connected Debug UART TXD O Ground connections I Not connected Ground connections HOST_WAKE_BT BT_WAKE_HOST I O HOST to wake-up Bluetooth device Bluetooth device to wake-up HOST P:POWER I:INPUT O:OUTPUT FN-LINK TECHNOLOGY LIMITED 11 6233BUUB 7. Electrical Specifications 7.1 Power Supply DC Characteristics Operating Temperature VCC33 Min. 0 3.15 Typ. Max. Unit 25 3.3 70 3.45 deg.C V 7.2 Interface Circuit time series 7.2.1 USB Bus Timing during Power On Sequence Ton: The main power ramp up duration Ten: Interval between the rising point of 3.3V and chip_en Tgate: Interval of 3.3V to be gated when chip_en voltage level < 2V Tattach: USB attach state. The duration from resistor attached to USB host starting card detection procedure Txtal: XTAL starts The power on flow Description:

The power on flow description : After main 3.3V ramp up, the internal power on reset is released by power ready detection circuit and the power management unit will be enabled. The power management unit enables the internal regulator and clock circuits. The power management unit also enables the USB circuits. USB analog circuits attach resisters to indicate the insertion of the USB device. Ton Unit ms Min 0.2 Typical 1.5 Max 5 FN-LINK TECHNOLOGY LIMITED 12 Tpor Txtal Tattach T1v25 ms ms ms ms

100 0 7.2.2 Power off by 3.3V power sequence 6233BUUB 2 1.5 250 0 10 8

5 When 3.3V power off and on afterward, the voltage of 3.3V power must keep lower than VPWR_OFF , and the 3.3V power keeping off duration must be more than TPWR_OFF 8. Size reference 8.1 Module Picture L x W : 13 x 15 (+0.3/-0.1) mm H: 2.3 (0.2) mm Weight 0.85g FN-LINK TECHNOLOGY LIMITED 13 8.2 Marking Description

< TOP VIEW >

6233BUUB 8.3 Physical Dimensions

<TOP View>

FN-LINK TECHNOLOGY LIMITED 14 8.4 Layout Recommendation 6233BUUB 9. The Key Material List Item Part Name Description Manufacturer 1 2 3 4 5 6 Inductor 2016,2.2uH,20%,DCR 0.264, 1.1A Sunlord,Ceaiya,cenker,TAIYO,Chili sin,INPAQ Diplexer 1608 Dual-band, dual-mode 2.4GHz/5GHz Glead, Walsin, ACX, Murata, WLAN MAG.LAYERS,TDK,FTR Crystal 2016 40MHz 10ppm 12PF -20-85C ECEC, TKD, Hosonic, JWT, TXC Chipset RTL8733BU-CG,QFN40 Realtek PCB Shielding 6233BUUB V2.0PCB XY-PCB,GDKX,Sunlord, green,4layer,FR4,13X15X0.8mm SL-PCB,TRULY 6221B-UUC-V1.0,shielding,13.65x11.65x1.55 mm,T=0.15mm FN-LINK TECHNOLOGY LIMITED 15 10. Reference Design 6233BUUB 11. Recommended Reflow Profile Referred to IPC/JEDEC standard. Peak Temperature : <250C Number of Times : 2 times 12. RoHS compliance All hardware components are fully compliant with EU RoHS directive FN-LINK TECHNOLOGY LIMITED 16 6233BUUB 13. Package 13.1 Reel A roll of 1500pcs 13.2 Carrier Tape Detail FN-LINK TECHNOLOGY LIMITED 17 13.3 Packaging Detail 6233BUUB 14. Moisture sensitivity The Modules is a Moisture Sensitive Device level 3, in according with standard IPC/JEDEC J-STD-020, take care all the relatives requirements for using this kind of components. Moreover, the customer has to take care of the following conditions:

a) Calculated shelf life in sealed bag: 12 months at <40C and <90% relative humidity (RH) b) Environmental condition during the production: 30C / 60% RH according to IPC/JEDEC J-STD-033A paragraph 5 c) The maximum time between the opening of the sealed bag and the reflow process must be 168 hours if condition b) IPC/JEDEC J-STD-033A paragraph 5.2 is respected d) Baking is required if conditions b) or c) are not respected e) Baking is required if the humidity indicator inside the bag indicates 10% RH or more FN-LINK TECHNOLOGY LIMITED 18 Warning & Statement This module meets the requirements of Part 15 Subpart B, FCC CFR Title 47 Part 15 Subpart C, FCC CFR Title 47 Part 15 Subpart E. Integration is strictly limited to fixed categorized end-products where a separation distance of at least 20 cm between the radiating part and any human body can be assured during normal operating conditions. This module only allows connection antenna in the instruction manual. If other antennas are used, re-evaluation is required. This module is test stand-alone, if more another modules work together with this module, please evaluation the multiple RF exposure. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: 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 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.

-- 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. If the FCC identification number 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. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: 2AATL-6233BUUB or Contains FCC ID: 2AATL-6233BUUB. This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated with minimum distance 20cm between radiator &

your body Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 Conditions on using FN-LINK TECHNOLOGY LIMITED regulatory approvals:

A. Customer must ensure that its product (The CUSTOMER Product) is electrically identical to FN-LINK TECHNOLOGY LIMITED reference designs. Customer acknowledges that any modifications to FN-LINK TECHNOLOGY LIMITED reference designs may invalidate regulatory approvals in relation to the CUSTOMER Product, or may necessitate notifications to the relevant regulatory authorities. B. Customer is responsible for ensuring that antennas used with the product are of the same type, with same or lower gains as approved and providing antenna reports to FN-LINK TECHNOLOGY LIMITED. C. Customer is responsible for regression testing to accommodate changes to FN-

LINK TECHNOLOGY LIMITED reference designs, new antennas, and portable RF exposure safety testing/approvals. D. Appropriate labels must be affixed to the CUSTOMER Product that comply with applicable regulations in all respects. E. A users manual or instruction manual must be included with the customer product that contains the text as required by applicable law. Without limitation of the foregoing, an example (for illustration purposes only) of possible text to include is set forth below:

2.2 List of applicable FCC rules FCC Part 15 Subpart C 15.247 & 15.207 & 15.209& 15.205 FCC Part 15 Subpart E 15.407 2.3 Specific operational use conditions Radio Technology : Bluetooth V5.2 EDR Operation frequency : 2402-2480MHz Channel No. : 79 Channels Channel spacing : 1MHz Modulation type : GFSK, /4 DQPSK, 8DPSK Antenna Type : Rob Antenna, max gain 3.35dBi Radio Technology : Bluetooth V5.2 BLE Operation frequency : 2402-2480MHz Channel No. : 40 Channels Channel spacing : 2MHz Rate : 1Mbps, 2Mbps Modulation type : GFSK Antenna Type : Rob Antenna, max gain 3.35dBi Radio Technology : 2.4G WIF 2412MHz-2462MHz for IEEE 802.11 b, g. n/HT20 2422MHz~2452MHz for IEEE802.11n/HT40 802.11b/802.11g /802.11n(HT20): 11CH 802.11(HT40): 7CH IEEE 802.11b: DSSS(CCK,DQPSK,DBPSK) IEEE 802.11g: OFDM(64QAM, 16QAM, QPSK, BPSK) IEEE 802.11n:OFDM(64QAM, 16QAM, QPSK, BPSK) Rob Antenna, max gain 3.35dBi Radio Technology : 5G WIFI Operation Frequency : 802.11a/n(HT20): 5180~5240MHz; 5260-5320MHz; 5500-

5700MHz; 5745~5825MHz 802.11n(HT40): 5190~5230MHz; 5260-5320MHz; 5510-5670MHz;

5755~5795MHz Channel separation : 20MHz for 802.11a/ 802.11ac(VHT20)/ 802.11n(HT20) 40MHz for802.11n(HT40) Modulation technology : IEEE 802.11n/a: OFDM (64QAM, 16QAM, QPSK, BPSK) Antenna Type : Rob Antenna, max gain 4.56dBi. The module can be used for mobile or portable applications with a maximum 4.56dBi antenna. The host manufacturer installing this module into their product must ensure that the final composit product complies with the FCC requirements by a technical assessment or evaluation to the FCC rules, including the transmitter operation. The host manufacturer has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user's manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. 2.4 Limited module procedures Not applicable. The module is a Single module and complies with the requirement of FCC Part 15.212. 2.5 Trace antenna designs Not applicable. The module has its own antenna, and doesnt need a hosts printed board microstrip trace antenna etc. 2.6 RF exposure considerations The device can be used in portable exposure condition without restriction and if RF exposure statement or module layout is changed, then the host product manufacturer required to take responsibility of the module through a change in FCC ID or new application. The FCC ID of the module cannot be used on the final product. In these circumstances, the host manufacturer will be responsible for re-

evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. 2.7 Antennas Antenna Specification are as follows:

Antenna Type: Rob antenna Antenna Gain(Peak):4.56 dBi (Provided by customer) This device is intended only for host manufacturers under the following conditions:

The transmitter module may not be co-located with any other transmitter or antenna;

The module shall be only used with the External antenna(s) that has been originally tested and certified with this module. The antenna must be either permanently attached or employ a unique antenna coupler. As long as the conditions above are met, further transmitter test will not be required. However, the host manufacturer is still responsible for testing their end-

product for any additional compliance requirements required with this module installed (for example, digital device emissions, PC peripheral requirements, etc.). 2.8 Label and compliance information Host product manufacturers need to provide a physical or e-label stating Contains FCC ID 2AATL-6233BUUB With their finished product. 2.9 Information on test modes and additional testing requirements Radio Technology : Bluetooth V5.2 EDR Operation frequency : 2402-2480MHz Channel No. : 79 Channels Channel spacing : 1MHz Modulation type : GFSK, /4 DQPSK, 8DPSK Antenna Type : Rob Antenna, max gain 3.35dBi Radio Technology : Bluetooth V5.2 BLE Operation frequency : 2402-2480MHz Channel No. : 40 Channels Channel spacing : 2MHz Rate : 1Mbps, 2Mbps Modulation type : GFSK Antenna Type : Rob Antenna, max gain 3.35dBi Radio Technology : 2.4G WIF 2412MHz-2462MHz for IEEE 802.11 b, g. n/HT20 2422MHz~2452MHz for IEEE802.11n/HT40 802.11b/802.11g /802.11n(HT20): 11CH 802.11(HT40): 7CH IEEE 802.11b: DSSS(CCK,DQPSK,DBPSK) IEEE 802.11g: OFDM(64QAM, 16QAM, QPSK, BPSK) IEEE 802.11n:OFDM(64QAM, 16QAM, QPSK, BPSK) Rob Antenna, max gain 3.35dBi Radio Technology : 5G WIFI Operation Frequency : 802.11a/n(HT20): 5180~5240MHz; 5260-5320MHz; 5500-

5700MHz; 5745~5825MHz 802.11n(HT40): 5190~5230MHz; 5260-5320MHz; 5510-5670MHz;

5755~5795MHz Channel separation : 20MHz for 802.11a/ 802.11ac(VHT20)/ 802.11n(HT20) 40MHz for802.11n(HT40) Modulation technology : IEEE 802.11n/a: OFDM (64QAM, 16QAM, QPSK, BPSK) Antenna Type : Rob Antenna, max gain 4.56dBi. Host manufacturer must perfom test of radiated & conducted emission and spurious emission, etc according to the actual test modes for a stand-alone modular transmitter in a host, as well as for multiple simultaneously transmitting modules or other transmitters in a host product. Only when all the test results of test modes comply with FCC requirements, then the end product can be sold legally. 2.10 Additional testing, Part 15 Subpart B disclaimer The modular transmitter is only FCC authorized for FCC Part 15 Subpart C 15.247

& 15.207 & 15.209 & 15.205 and FCC Part 15 Subpart E 15.407 that the host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. If the grantee markets their product as being Part 15 Subpart B compliant (when it also contains unintentional-radiator digital circuity), then the grantee shall provide a notice stating that the final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. As shown in the diagram, the module is only controlled and powered by ABC representing a three way USB circuit. Normally, it can be replaced with a separate cable. D and E represent the exit of the antenna. But for the convenience of frequency setting and testing, it is fixed on the public board. That is to say, the module can work independently from the public board, and the blue box in the table is suspended and not working. This cable method is the final installation method of the module.

FN-LINK TECHNOLOGY LIMITED Section 2.911(d)(5)(i) Certification Equipment Type Company name: FN-LINK TECHNOLOGY LIMITED Address: No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, China Product Name: WIFI/Bluetooth MODULE FCC ID: 2AATL-6233BUUB Model(s): 6233BUUB 2.911(d)(5)(i) Equipment Type We, FN-LINK TECHNOLOGY LIMITED certify that the equipment for which authorization is sought through certification is not:

Prohibited from receiving an equipment authorization pursuant to 2.903; of the FCC rules. Identified as an equipment type in the Covered List NOTE 1 Yours sincerely, Name:

Jim Hu Date: 11/3/2023 Title:

Company name: FN-LINK TECHNOLOGY LIMITED General Manager NOTE 1 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(i) Equipment Type Attestation v1.2

FN-LINK TECHNOLOGY LIMITED Section 2.911(d)(5)(ii) Certification Applicant (Covered List ) Company name: FN-LINK TECHNOLOGY LIMITED Address: No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, China Product Name: WIFI/Bluetooth MODULE FCC ID: 2AATL-6233BUUB Model(s): 6233BUUB 2.911(d)(5)(ii) Applicant filing We, [FN-LINK TECHNOLOGY LIMITED] certify that, as of the date of the filing of the application, the applicant is not identified NOTE 1 on the Covered List NOTE 2, established pursuant to 1.50002 of this chapter, as an entity producing covered communications equipment. Yours sincerely, Name:

Jim Hu Date: 11/3/2023 Title:

Company name: FN-LINK TECHNOLOGY LIMITED General Manager NOTE 1 Delete option not applicable to this application. NOTE 2 Covered List; is the List of Equipment and Services Covered By Section 2 of The Secure Networks Act, available at https://www.fcc.gov/supplychain/coveredlist References;

1) 986446 D01 Covered Equipment v01 https://apps.fcc.gov/oetcf/kdb/forms/FTSSearchResultPage.cfm?switch=P&id=325672 2) Federal Register document 2022-28263 published on 02/06/23 https://www.federalregister.gov/documents/2023/02/06/2022-28263/protecting-against-national-security-threats-to-the-com munications-supply-chain-through-the 2.911 (d)(5)(ii) Applicant Attestation v1.3

WARNING:pdfminer.pdfpage:The PDF <_io.BufferedReader name='/Volumes/Scratch/Incoming/eg-scratch/6933057.pdf'> contains a metadata field indicating that it should not allow text extraction. Ignoring this field and proceeding. Use the check_extractable if you want to raise an error in this case FN-LINK TECHNOLOGY LIMITED U.S. Agent Designation for Service of Process -

Certification Attestation Letter 11/3/2023 ATTN.: Reviewing Engineer FCC ID: 2AATL-6233BUUB FRN No.: 0022902761 Per section 2.911(d)(7) of the FCC rules, FN-LINK TECHNOLOGY LIMITED certifies that the equipment for which authorization is sought is designated to the following U.S. agent* for service of process:

Company Name: JOC Australia Inc Physical U.S. Company Address: 18351 Colima Road Ste 585 Rowland Heights, California, 91748 United States of America Agent contact name/Title : Benjamin. Smith/Vice President Agent Email Address: sales@jocinc.org/calvinsui001@gmail.com Tel No.: +1(626) 341 3408 FRN No.: 0033379421 The above contact person accepts the obligation for service of process. The applicant accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Applicant Signed:

Agent Signed (if different to Applicant):

Signed:

Printed name: Jim Hu Title: Manager Company Name: FN-LINK TECHNOLOGY LIMITED Title: Vice President Signed:

Printed name: Benjamin. Smith Date: 11/3/2023 Company Name: JOC Australia Inc Date: 11/3/2023

* the applicant must designate a contact located in the United States for purposes of acting as the applicants agent for service of process, regardless of whether the applicant is a domestic or foreign entity. An applicant located in the United States may designate itself as the agent for service of process.

FN-LINK TECHNOLOGY LIMITED Authorization November 3, 2023 Company name: FN-LINK TECHNOLOGY LIMITED Address: No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, China Product Name: WIFI/Bluetooth MODULE FCC ID: 2AATL-6233BUUB Model(s): 6233BUUB We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

Name Position Company Name Address Tel Fax Email Jim Hu Manager FN-LINK TECHNOLOGY LIMITED No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, CHINA

+8613538178944

jim@fn-link.com

FN-LINK TECHNOLOGY LIMITED FCC Software Configuration Control Declaration Date: November 3, 2023 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product/ Model Number: WIFI/Bluetooth MODULE/6233BUUB FCC ID: 2AATL-6233BUUB Regarding FCC Country Code Selection guidelines identified in KDB 594280. 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. Signature:

November 3, 2023 Name Position Company Name Address Tel Fax Email Jim Hu Manager FN-LINK TECHNOLOGY LIMITED No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, CHINA

+8613538178944

jim@fn-link.com FCC Software Configuration Control Declaration Rev1.1

FN-LINK TECHNOLOGY LIMITED Letter of Authorization Company: FN-LINK TECHNOLOGY LIMITED Address: No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, China Product Name: WIFI/Bluetooth MODULE Model Number(s): 6233BUUB We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature:

November 3, 2023 Name Position Company Name Address Tel Fax Email Jim Hu Manager FN-LINK TECHNOLOGY LIMITED No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, CHINA

+8613538178944

jim@fn-link.com

FN-LINK TECHNOLOGY LIMITED Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Subject; Request for Long Term Confidentiality FCC ID: 2AATL-6233BUUB Date: 2023-11-03 To Whom It May Concern, Pursuant to the provisions of the Commissions rules Title 47 Sections 0.457 and 0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram BOM Operational Description Tune-up Procedure SOFTWARE SECURITY REQUIREMENTS FOR U-NII DEVICES It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Signature:

November 3, 2023 Name Position Company Name Address Tel Fax Email Jim Hu Manager FN-LINK TECHNOLOGY LIMITED No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, CHINA

+8613538178944

jim@fn-link.com

FCC Modular Approval Request To the FCC or FCC TCB handling this application Hereby we, Company (grantee) FN-LINK TECHNOLOGY LIMITED Addresss No.8, Litong Road, Liuyang Economic & Technical Development Zone, Changsha, Hunan, CHINA City / ZIP / State / Country China request modular approval for the certification of our equipment within this application, identified by:

FCC ID:

2AATL-6233BUUB The table below contains justification for modular approval of this equipment. Requirement per DA 00-1407 1. The modular transmitter must have its own RF shielding. 2.The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with Part 15 requirements under conditions of excessive data rates or over-modulation. 3. The modular transmitter must have its own power supply regulation. Explanation from grantee Has RF shielding. The modular have buffered modulation/data inputs. The modular transmitter have its own power supply regulation. 4.The modular transmitter must comply with the antenna requirements of Section 15.203 and 15.204(c). The antenna must either be permanently attached or employ a unique antenna coupler (at all connections between the module and the antenna, including the cable).. This module is equipped with a PCB antenna, please refer to the External Photo for the detail. 5. The modular transmitter must be tested in a stand-alone configuration, i.e., the module must not be inside another device during testing. This is intended to demonstrate that the module is capable of complying with Part 15 emission limits regardless of the device into which it is eventually installed. 6. The modular transmitter must be labeled with its own FCC ID number, and, 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. This exterior label can use wording such as the following: Contains Transmitter Module FCC ID: ?????????? or Contains FCC ID: 2ATCG-BB810QI4A Any similar wording that expresses the same meaning may be used. The Grantee may either provide such a label, an example of which must be included in the application for equipment authorization, or, must provide adequate instructions along with the module which explain this requirement. In the latter case, a copy of these instructions must be included in the application for equipment authorization. 7. The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. For example, there are very strict operational and timing requirements that must be met before a transmitter is authorized for operation under Section 15.231. For instance, data transmission is prohibited, except for operation under Section 15.231(e), in which case there are separate field strength level and timing requirements. Compliance with these requirements must be assured. 8. The modular transmitter must comply with any applicable RF exposure requirements. For example, FCC Rules in Sections 2.1091, 2.1093 and specific Sections of Part 15, including 15.319(i), 15.407(f), 15.253(f) and 15.255(g), require that Unlicensed PCS, UNII and millimetre wave devices perform routine environmental evaluation for RF Exposure to demonstrate compliance. In addition, spread spectrum transmitters operating under Section 15.247 are required to address RF Exposure compliance in accordance with Section 15.247(b)(4). Modular transmitters approved under other Sections of Part 15, when necessary, may also need to address certain RF Exposure concerns, typically by providing specific installation and operating instructions for users, installers and other interested parties to ensure compliance. Attestation (by grantee) City and Country:

Function:

Date:

Name:

(this must be a person) Changsha, Hunan, CHINA November 9, 2023 Jim Hu Manager The module was tested in a stand-alone configuration, please refer to the Setup Photo for the detail Please refer to label sample exhibit - host labeling is described in integration manual The required FCC rule has been fulfilled and all the instructions for the maintaining compliance have been clearly stated in the User Manual. The MPE evaluation with 20cm distance restriction is submitted for the compliance of RF Exposure requirement. Signature:

(or official company stamp)