2AL6KBL-M5621DS2AIEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module

BL-M5621DS2A IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Specification Topview ModuleName:BL-M5621DS2A Module Type: IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Revision:V1.0 CustomerApproval: Company: Title: Signature:Date: BL-linkApproval: Title: Signature:Date: RevisionHistory RevisionSummaryReleaseDate 1.0Officialrelease2020-12-11 1.Introduction BL-M5621DS2Amoduledesignis basedon UWE5621DSsolution,The UWE5621DSis a is a highly integrated2-in-1connectivitysinglechip whichhas built in a 2x2 dual-bandwirelessLAN radioand Bluetoothradio.It includes2.4 GHz and 5 GHz WLANIEEE802.11a/b/g/n/ac2x2 MU-MIMO20/40/80 MHzVHT R2 MAC/PHY/Radio,Bluetooth5 with supportinghigh powermode,Mesh,DirectionFinding and LongRange.Additionally,this radio-on-a-chipintegratespoweramplifiers,receivelow noise amplifiersand RF TR switch.It supportsSDIO3.0 and PCIeGen 2 compliantslaveinterfacesfor Wi-Fi, high-speed4-wireUARTfor Bluetooth. 1.1RFmoduleOverview The generalHW architecturefor the moduleis shownin Figure1. ANT DPX 2.4G Tx/Rx Xtal 26MHz UWE5621DS 2T2R 802.11AC&BT5 3.3V-1.2V 5G Tx/Rx 5G Tx/Rx 2.4G Tx/Rx DPX ANT ANT BT Tx/Rx SDIO、UART、PCM BT 1.2Specificationreference Thisspecificationisbasedonadditionalreferenceslistedbelow. _IEEEStd.802.11a _IEEEStd.802.11b _IEEEStd.802.11g _IEEEStd.802.11n _IEEEStd.802.11ac _Bluetooth2.1+EDR/4.2/5.0 1.3SystemFunctions Table1:GeneralSpecificationasbelow: MainChipset Uwe5621DS OperatingFrequency2.4G/5G WiFiStandard802.11a/b/g/n/ac(2x2) Bluetooth2.1+EDR/4.2/5.0 ModulationWIFI:11b:DBPSK,DQPSKandCCKandDSSS 11a/g:BPSK,QPSK,16QAM,64QAMandOFDM 11n:BPSK,QPSK,16QAM,64QAMandOFDM 11ac:BPSK,QPSK,16QAM,64QAM,256QAMandOFDM BT:FHSS,GFSK,DPSK,DQPSK Datarates11b:1,2,5.5and11Mbps 11a/g:6,9,12,18,24,36,48and54Mbps 11n:MCS0~15,upto300Mbps 11ac:MCS0~9,Nss=2,upto866.7Mbps Formfactor50pins HostInterfaceSDIO/UART/PCM PCBStack4-layersdesign Dimension Typical，13.0mmx15.0mmx1.80mm AntennaExternalAntennasDesign OperationTemperature-10°C to+70 °C StorageTemperature -40 °C to+125 °C OperationVoltage3.3V+/-10% 2.0MechanicalSpecification 2.1MechanicalOutlineDrawing TypicalDimension(WxL):13.0mmx15.0mmx1.80mm Generaltolerance:±0.20mm PinDefineDescriptionPinDefineDescription 1GNDGND26ESMD1ESMD1 2ANT0ANT0+BT27IISLRCKIISLRCK 3GNDGND28IISDIIISDI 4GNDGND29IISDOIISDO 5GNDGND30IISCLKIISCLK 6GNDGND31GNDGND 7GNDGND32GNDGND 8GNDGND33ESMD2ESMD2 9ANT1ANT134VDD1V81.8VSupplyforGPIO 10GNDGND35RFCTL4RFCTL4 11GNDGND36VDD33VDDINPUT(3.3V) 12RF_BT(NC)BTANT(NC)37RFCTL5RFCTL5 13ESMCLKESMCLK38RST_NRST_N 14ESMCSNESMCSN39GNDGND 15CHIP_ENPMU-Enable40U0TXDU0TXD 16ESMD3ESMD341U0RXDU0RXD 17SD_CMDSDIOCommandInput42U0RTSU0RTS 18SD_CLKSDIOClockInput43U0CTSU0CTS 19SD_D3SDIODataLine344U2TXDU2TXD 20SD_D2SDIODataLine245GPIO2GPIO2 21SD_D0SDIODataLine046U1TXDU1TXD 22SD_D1SDIODataLine147U1RXDU1RXD 23GNDGND48GNDGND 3. Electrical Specification This Specification is based-on conductive DVT testing result. The extreme condition include overall temperature (0 °C ,+25 °C ,+40 °C ) and overall voltage (3.0V,3.3V,3.6V). 3. 1 IEEE 802.11g /a Section: ItemsContents SpecificationIEEE802.11g&IEEE802.11a ModeBPSK, QPSK, 16QAM, 64QAM and OFDM Channel CH1 to CH13 @ 11g CH36 to CH165 @ 11a Data rate6, 9, 12, 18, 24, 36, 48, 54Mbps TX CharacteristicsMin.Typ.Max.UnitRemark 1. Power Levels 1) 15dBm Target (For Each antenna port) @ 11g 54Mbps 13±215±218±2dBm 2) 15dBm Target (For Each antenna port) @ 11a 54Mbps 11±213±215±2dBm 2. Spectrum Mask @ Target Power 1) at fc +/-11MHz---20dBr 2) at fc +/-20MHz---28dBr 3) at fc > +/-30MHz---40dBr 3. Constellation Error(EVM) @ Target Power 1) 6Mbps--5dB 2) 9Mbps---8dB 3) 12Mbps---10dB 4) 18Mbps---13dB 5) 24Mbps--16dB 6) 36Mbps---19dB 7) 48Mbps---22dB 8) 54Mbps--27-25dB 4. Frequency Error 1) IEEE802.11g/a-1010ppm RX CharacteristicsMin.Typ.Max.Unit 5. Minimum Input Level Sensitivity(each chain) 1) 6Mbps (PER≦10%)--82dBm 2) 9Mbps (PER≦10%)--81dBm 24GPIO1GPIO149U2RXDU2RXD 25ESMD0ESMD050INTINT 3) 12Mbps(PER≦10%)--79dBm 4) 18Mbps(PER≦10%)--77dBm 5) 24Mbps(PER≦10%)--74dBm 6) 36Mbps(PER≦10%) --70dBm 7) 48Mbps(PER≦10%)--66dBm 8) 54Mbps(PER≦10%)--65dBm 6. MaximumInputLevel(PER≦10%) 1) IEEE802.11g/a-2 0-5-dBm 3.2IEEE802.11bSection: ItemsContents SpecificationIEEE802.11b ModeDBPSK,DQPSKand CCKand DSSS ChannelCH1 to CH13 Datarate1, 2, 5.5, 11Mbps TX CharacteristicsMin.Typ.Max.UnitRemark 1. PowerLevels(Calibrated) 1) 17dBm Target(For Eachantennaport) @1Mbps ~11Mbps 14±216±2 18±2 dBm 2. SpectrumMask@ TargetPower 1) fc +/-11MHzto +/-22MHz---30dBr 2) fc > +/-22MHz---50dBr 3. ConstellationError(EVM)@ TargetPower 1) 1Mbps--10dB 2) 2Mbps--10dB 3) 5.5 Mbps--10dB 4) 11 Mbps--20-10dB 4. FrequencyError-10-10ppm RX CharacteristicsMin.Typ.Max.Unit 5. MinimumInputLevelSensitivity(eachchain) 1) 1Mbps(FER≦8%)--76dBm 2) 2Mbps(FER≦8%) --76dBm 3) 5.5Mbps(FER≦8%) --76dBm 4) 11Mbps(FER≦8%) --76dBm 6. MaximumInputLevel(FER≦8%)-10-5-dBm 3.3 IEEE 802.11n HT20 Section: ItemsContents SpecificationIEEE802.11n HT20 @ 2.4G/5G ModeBPSK, QPSK, 16QAM, 64QAM and OFDM Channel CH1 to CH13 @ 2.4G CH36 to CH165 @ 5G Data rate (MCS index)MCS0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15 TX CharacteristicsMin.Typ.Max.UnitRemark 1. Power Levels 1) 14dBm Target (For Each antenna port) @ 2.4G MCS7 12±214±218±2dBm 2) 14dBm Target (For Each antenna port) @ 5G MCS7 12±214±216±2dBm 2. Spectrum Mask @ Target Power 1) at fc +/-11MHz---20dBr 2) at fc +/-20MHz---28dBr 3) at fc > +/-30MHz---45dBr 3. Constellation Error(EVM) @ Target Power 1) MCS0--5dB 2) MCS1---10dB 3) MCS2---13dB 4) MCS3---16dB 5) MCS4--19dB 6) MCS5---22dB 7) MCS6---25dB 8) MCS7--28-27dB 4. Frequency Error 1) IEEE802.11n HT20 @ 2.4G/5G-10-10ppm RX CharacteristicsMin.Typ.Max.Unit 5. Minimum Input Level Sensitivity(each chain) 1) MCS0 (PER≦10%)--82dBm 2) MCS1 (PER≦10%) --79dBm 3) MCS2 (PER≦10%)--77dBm 4) MCS3 (PER≦10%)--74dBm 5) MCS4 (PER≦10%)--70dBm 6) MCS5 (PER≦10%) --66dBm 7) MCS6 (PER≦10%)--65dBm 8) MCS7 (PER≦10%)--64dBm 6. Maximum Input Level (PER≦10%) 1) IEEE802.11n HT20 @ 2.4G/5G-20-6-dBm 3.4 IEEE 802.11…

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FCC Software Configuration Control Declaration Rev1.1 Shenzhen Bilian Electronic Co.,Ltd. FCC Software Configuration Control Declaration Date: August 25, 2021 Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Attn: OET Dept. Product/ IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module / BL- M5621DS2A, BL-M5621DS3 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. Name: Hanbing Deng Date: 2021/08/25 Title: Manager Signature of applicant

Shenzhen Bilian Electronic Co.,Ltd. Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Series Models Description Date: 2021/08/26 Dear Sir/Madam, We, Shenzhen Bilian Electronic Co.,Ltd. Hereby declares the following statement for EU/US/MIC certificate, PCB board, Schematic, Hardware version, Software version, structure and internal photos are same except for the model’s name; named differently due to marketing purposes. Product name: IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Model no.: BL-M5621DS2A, BL-M5621DS3 Sincerely yours Name / Title: Hanbing Deng / Manager Company: Shenzhen Bilian Electronic Co.,Ltd. Address: Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Phone: +86 18118768735 Fax:+86 0755-24665666 E-Mail: [email protected]

Shenzhen Bilian Electronic Co.,Ltd. Agent Authorization Company: Shenzhen Bilian Electronic Co.,Ltd. Address: Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Product Name: IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Trade Mark: N/A Model Number(s): BL-M5621DS2A，BL-M5621DS3 FCC ID: 2AL6KBL-M5621DS2A 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: Date: 2021-08-25 Name: Hanbing Deng Title: Manager Company: Shenzhen Bilian Electronic Co.,Ltd.

Shenzhen Bilian Electronic Co.,Ltd. FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Subject; Limited Module Approval Request Letter Company name: IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module FCC ID: 2AL6KBL-M5621DS2A Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;- FCC KDB 996369 D01 ‘Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Equip Auth Guide v02’. FCC ID：2AL6KBL-M5621DS2A has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 Explanation from Grantee (do not write yes/no, but explain why product complies/how it is achieved) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly. The modular without a shield. The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal. Yes The module must contain power supply regulation on the module. The modular has an onboard 3.3V regulator(integrated in UWE5621DS). The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per §§ 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The modular has a External antenna which comply with the antenna requirement of Section 15.203,Maximum Antenna Gain is 2dBi. The module must demonstrate compliance in a stand-alone configuration. The modular was tested in a standalone configuration apart from host units. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The modular has its own FCC ID number. The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. Yes Shenzhen Bilian Electronic Co.,Ltd. FCC Modular Approval Request Rev 3.0 The module must comply with RF exposure requirements Yes, RF cexposure evaluation performed at 20cm. Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements; KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference 2.2 List of applicable FCC rules Page 15 2.3 Summarize the specific operational use conditions Page 15 2.4 Limited module procedures Page 15 2.5 Trace antenna designs Page 15 2.6 RF exposure considerations Page 15 2.7 Antennas Page 15 2.8 Label and compliance information Page 15 2.9 Information on test modes and additional testing requirements Page 15 2.10 Additional testing, Part 15 Subpart B disclaimer Page 15 Name: Hanbing Deng Date: 2021-08-25 Title: Manager Signature of applicant

Shenzhen Bilian Electronic Co.,Ltd. Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-08-25 Subject; Request for Confidentiality FCC ID: 2AL6KBL-M5621DS2A To Whom It May Concern, Pursuant to the provisions of the Commission’s 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 Operational Description BOM Software Security Requirements In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. 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. Sincerely, Signature: Name / Title: Hanbing Deng / Manager Company: Shenzhen Bilian Electronic Co.,Ltd. Address: Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Phone: +86 18118768735 Fax:+86 0755-24665666 E-Mail: [email protected]

FCC ID: 2AL6KBL-M5621DS2A Fig. 1 Fig. 2 WLAN Antenna 0 BT &WLAN Antenna 1 FCC ID: 2AL6KBL-M5621DS2A Fig. 3 Fig. 4 FCC ID: 2AL6KBL-M5621DS2A Fig. 5

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L1.0cm x 0.8cm) Label Location FCC ID: 2AL6KBL-M5621DS2A

FCC ID: 2AL6KBL-M5621DS2A Fig. 1 Fig. 2 FCC ID: 2AL6KBL-M5621DS2A Fig. 3

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong RF Exposure evaluation Report Reference No...................... : FCC ID. ............................................ : GTS20210628009-1-5 2AL6KBL-M5621DS2A Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Oliver Ou Approved by ( position+printed name+signature) . : Manager Simon Hu Date of issue .................................... : Aug.13, 2021 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong Applicant’s name ............................ : Shenzhen Bilian Electronic Co.,Ltd. Address ............................................ : Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Test specification ........................... : Standard ........................................... : 47CFR §1.1310 Basis and purpose 47CFR §2.1091 Radiofrequency radiation exposure evaluation: mobile devices KDB447498 D01 General RF Exposure Guidance v06 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ...................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Bilian Electronic Co.,Ltd. Model/Type reference ...................... : BL-M5621DS2A Listed Models .................................. : BL-M5621DS3 Modulation Type ............................... : IEEE 802.11a /802.11b/802.11g/802.11n/802.11ac GFSK, π/4-DQPSK, 8DPSK Operation Frequency........................ : From 2412MHz to 2462MHz, 5180MHz to 5240MHz, 5745MHz to 5825MHz, 2402MHz to 2480MHz Hardware Version ............................ : N/A Software Version .............................. : N/A Rating ............................................... : DC 3.3V Result ............................................... : PASS Report No.: GTS20210628009-1-5 Page 2 of 20 T E S T R E P O R T Test Report No. : GTS20210628009-1-5 Jun.10, 2021 ______________________________________________________________________________________________ Date of issue Equipment under Test : IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Model /Type : BL-M5621DS2A Listed model : BL-M5621DS3 Applicant : Shenzhen Bilian Electronic Co.,Ltd. Address : Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Manufacturer : Shenzhen Bilian Electronic Co.,Ltd. Address : Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20210628009-1-5 Page 3 of 20 Contents 1. SUMMARY .................................................................................................................................................... 4 1.1 EUT CONFIGURATION .................................................................................................................................... 4 1.2 PRODUCT DESCRIPTION ................................................................................................................................ 4 2. TEST ENVIRONMENT .................................................................................................................................. 5 2.1 ADDRESS OF THE TEST LABORATORY .............................................................................................................. 5 2.2 TEST FACILITY ............................................................................................................................................... 5 2.3 ENVIRONMENTAL CONDITIONS ........................................................................................................................ 5 2.4 STATEMENT OF THE MEASUREMENT UNCERTAINTY .......................................................................................... 5 3. METHOD OF MEASUREMENT ................................................................................................................... 6 3.1 APPLICABLE STANDARD ................................................................................................................................. 6 3.2 REQUIREMENT .............................................................................................................................................. 6 3.3 LIMIT ............................................................................................................................................................. 6 3.4 MPE CALCULATION METHOD ......................................................................................................................... 7 3.5 ANTENNA INFORMATION ................................................................…

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Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong FCC PART 15 SUBPART C TEST REPORT FCC PART 15.407 Report Reference No. ..................... : FCC ID............................................. : GTS20210628009-1-4 2AL6KBL-M5621DS2A Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Oliver Ou Approved by ( position+printed name+signature) . : Manager Simon Hu Date of issue .................................... : Aug.13, 2021 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : Shenzhen Bilian Electronic Co.,Ltd. Address ............................................ : Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Test specification ........................... : Standard ........................................... : FCC Part 15.407: General technical requirements TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ...................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Bilian Electronic Co.,Ltd. Model/Type reference ...................... : BL-M5621DS2A Listed Models .................................. : BL-M5621DS3 Operation Frequency ........................ : From 5180MHz to 5240MHz/ 5745MHz to 5825MHz Hardware Version ............................ : N/A Software Version .............................. : N/A Rating ............................................... : DC 3.3V Result ............................................... : PASS Report No.: GTS20210628009-1-4 Page 2 of 91 T E S T R E P O R T Test Report No. : GTS20210628009-1-4 Aug.13, 2021 ____________________________________________________________________________________ Date of issue Equipment under Test : IEEE 802.11b/g/n/ac 866Mbps 2T2R SDIO WiFi+BT5.1 Module Model /Type : BL-M5621DS2A Listed model : BL-M5621DS3 Applicant : Shenzhen Bilian Electronic Co.,Ltd. Address : Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Manufacturer : Shenzhen Bilian Electronic Co.,Ltd. Address : Room 501, Building 3, No. 32, Dafu Road, Zhangge Community, Fucheng Street, Longhua District, Shenzhen City, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20210628009-1-4 Page 3 of 91 Contents 1. TEST STANDARDS ......................................................................................................................................... 4 2. SUMMARY ....................................................................................................................................................... 5 2.1. General Remarks ................................................................................................................................... 5 2.2. Product Description ................................................................................................................................ 5 2.3. Equipment Under Test ........................................................................................................................... 6 2.4. Short description of the Equipment under Test (EUT) ........................................................................... 6 2.5. EUT operation mode .............................................................................................................................. 6 2.6. Block Diagram of Test Setup ................................................................................................................. 6 2.7. Related Submittal(s) / Grant (s) ............................................................................................................. 7 2.8. EUT Exercise Software .......................................................................................................................... 7 2.9. Special Accessories ............................................................................................................................... 7 2.10. External I/O Cable ................................................................................................................................ 7 2.11. Modifications ........................................................................................................................................ 7 3. TEST ENVIRONMENT ..................................................................................................................................... 8 3.1. Address of the test laboratory ................................................................................................................ 8 3.2. Test Facility ...................…

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Report No.: GTS20210628009-1-4 Page 50 of 91 4.6. 6dB Bandwidth TEST CONFIGURATION EUT SPECTRUM ANALYZER TEST PROCEDURE According to KDB789033 D02 General U-NII Test Procedures New Rules v02r01 for one of the following procedures may be used for section 15.407(e) specifies the minimum 6 dB emission bandwidth of at least 500 KHz for the band 5.715-5.85 GHz. The following procedure shall be used for measuring this bandwidth: a. Set RBW = 100 kHz. b. Set the video bandwidth (VBW) ≥ 3 × RBW c. Detector = Peak. d. Trace mode = max hold. e. Sweep = auto couple. f. Allow the trace to stabilize g. Measure the maximum width of the emission that is constrained by the frequencies associated with the two outermost amplitude points (upper and lower frequencies) that are attenuated by 6 dB relative to the maximum level measured in the fundamental emission. Note: The automatic bandwidth measurement capability of a spectrum analyzer or EMI receiver may be employed if it implements the functionality described above. LIMIT For Section 15.407(e) specifies the minimum 6 dB emission bandwidth of at least 500 KHz for the band 5.715- 5.85 GHz TEST RESULTS Temperature 23.6°C Humidity 55.7% Test Engineer Oliver Ou Configurations IEEE 802.11a/n/ac Report No.: GTS20210628009-1-4 Page 51 of 91 Antenna 0: Type Channel 6dB Bandwidth (MHz) Limit (KHz) Result 802.11a 149 16.440 >500 Pass 157 16.440 165 16.440 802.11nHT20 149 16.440 >500 Pass 157 16.440 165 16.440 802.11n40 151 35.920 >500 Pass 159 36.000 802.11ac20 149 17.200 >500 Pass 157 17.400 165 17.600 802.11ac40 151 36.240 >500 Pass 159 36.000 802.11ac80 155 76.160 >500 Pass Antenna 1: Type Channel 6dB Bandwidth (MHz) Limit (KHz) Result 802.11a 149 15.200 >500 Pass 157 15.160 165 15.120 802.11nHT20 149 14.880 >500 Pass 157 15.200 165 15.200 802.11n40 151 35.200 >500 Pass 159 35.200 802.11ac20 149 15.200 >500 Pass 157 15.200 165 15.360 802.11ac40 151 35.280 >500 Pass 159 35.200 802.11ac80 155 75.520 >500 Pass Report No.: GTS20210628009-1-4 Page 52 of 91 Antenna 0: 6dB Bandwidth 802.11a 802.11n HT20 CH149 CH149 CH157 CH157 CH165 CH165 Report No.: GTS20210628009-1-4 Page 53 of 91 6dB Bandwidth 802.11ac20 802.11n HT40 CH149 CH151 CH157 CH159 CH165 Report No.: GTS20210628009-1-4 Page 54 of 91 6dB Bandwidth 802.11ac40 802.11ac80 CH151 CH155 CH159 Report No.: GTS20210628009-1-4 Page 55 of 91 Antenna 1: 6dB Bandwidth 802.11a 802.11n HT20 CH149 CH149 CH157 CH157 CH165 CH165 Report No.: GTS20210628009-1-4 Page 56 of 91 6dB Bandwidth 802.11ac20 802.11n HT40 CH149 CH151 CH157 CH159 CH165 Report No.: GTS20210628009-1-4 Page 57 of 91 6dB Bandwidth 802.11ac40 802.11ac80 CH151 CH155 CH159 Report No.: GTS20210628009-1-4 Page 58 of 91 4.7. 26dBc Bandwidth TEST CONFIGURATION EUT SPECTRUM ANALYZER TEST PROCEDURE According to KDB789033 D02 General U-NII Test Procedures New Rules v02r01 for one of the following procedures may be used for Emission Bandwidth (EBW) measurement: a. Set RBW = 220 kHz/430 kHz /820 kHz (approximately 1% of the emission bandwidth). b. Set the video bandwidth (VBW) = 3* RBW) c. Detector = Peak. d. Trace mode = max hold. e. Sweep = auto couple. f. Allow the trace to stabilize g. Measure the maximum width of the emission that is 26 dB dow…

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