2AY4V-AC8401WIFI Module

Module characteristics  Support IEEE 802.11a/b/g/n wireless standard  Support WEP, WPA and WPA2 encryption  Support UART / PWM / ADC / GPIO / I2C / SPI interface  Support STA / AP and other working modes  Support Amazon FFS distribution network  Support TLS / SSL Protocol  Support PCB antenna  3.3V power supply  Peripheral equipment:  2x UART  1x I2C  1x SPI  5x PWM  4x ADC  Up to 14GPIOs  Working environment temperature: - 20 °C to + 85 °C  Half hole SMT package supporting SMT Application  Electrical lighting  smart home / home appliances  instrumentation  health care  Industrial automation  smart energy MODEL Model Antenna type explain AC8401 PCB Antenna Default Version：1.0 Release date： 2021年02月19日 AC8401 Embedded Wi Fi module - 2 - Catalog 1. ............................................................................................................................................ - 3 - 2. Electrical parameters ......................................................................................................... - 3 - 2.1 Power consumption parameters ................................................................................. - 3 - 2.2 work environment ....................................................................................................... - 4 - 3. Radio Frequency Parameters ............................................................................................ - 4 - 3.1 Basic Radio Frequency Parameters ............................................................................. - 4 - 3.2 TX、RX performance ................................................................................................... - 5 - 3.2.1 IEEE802.11b Mode ............................................................................................... - 5 - 3.2.2 IEEE802.11g Mode ................................................................................................ - 6 - 3.2.3 IEEE802.11n Mode ............................................................................................... - 7 - 4. AC8401 essential information ......................................................................................... - 10 - 4.1 Pin arrangement ........................................................................................................ - 10 - 4.2 Pin definition ............................................................................................................. - 10 - 4.2.1 Module hardware pin definition ........................................................................ - 10 - 4.3 Built in antenna ......................................................................................................... - 12 - 4.4 Mechanical dimension............................................................................................... - 13 - 4.5 Recommended package size ..................................................................................... - 14 - 5. Reference design ............................................................................................................. - 15 - 5.1 UARTinterface design ................................................................................................ - 15 - 5.2 Power supply requirements ...................................................................................... - 16 - 6.Certification instructions .................................................................................................. - 17 - 6.1Label diagram ............................................................................................................. - 17 - 6.2 FCC instructions ......................................................................................................... - 17 - - 3 - 1. Product introduction AC8401 is a high cost-effective embedded WiFi module introduced by Asean that supports 802.11a/b/g/n and can communicate with other devices via UART port.The module integrates RF transceiver, MAC, baseband processing, all WiFi protocols and configuration information, and network protocol stack. It can be widely used in smart home devices, remote monitoring devices, medical devices and other fields. The module integrates Andes Technology N10 processors with a maximum primary frequency of 160MHz, 192KB of SRAM, and a built-in 2MB Flash. 2. Electrical parameters 2.1 Power consumption parameters The power consumption parameters are detailed in Table 1. Table 1 AC8401 Power consumption parameters Specifications Min. Typ. Max. Units VDD 1 3.1 3.6 V VIL(input low voltage) 0 0.8 V VIH(input high voltage) 2 3.6 V VOL(output low voltage) 0.4 V VOH(output high voltage) 2.4 V Io 12 mA Standby (SP mini) 80 85 mA pulse current @TX 11b @17dBm 11Mbps 305 mA pulse current @TX 11g @15dBm 54Mbps 250 mA pulse current @TX 11n @14dBm 65Mbps 225 mA networking 305 mA Note: It is important to ensure that VDD is not less than 3.3V - 4 - 2.2 work environment The working environment is detailed in Table 2 Table 2 AC8401 Work Environment Symbol Description Min. Max. Units Ts Storage temperature -40 125 °C TA Ambient operating temperature -20 85 °C Vdd Supply voltage 3.1 3.6 V Vio Voltage on IO pin 0 VDD V ESD HBM 1000 2000 V 3. Radio Frequency Parameters 3.1 Basic Radio Frequency Parameters RF parameters are detailed in Table 3 Table 3 AC8401 RF parameter frequency range 2.412GHz-2.464GHz 5.15GHz-5.25GHz Wireless Standard Support IEEE 802.11 a/b/g/n RF power 802.11b:17dBm±1dBm 802.11g:14dBm±1dBm 802.11n:14dBm±1dBm 5G 802.11a/n:12.5dBm±1dBm antenna Built in: PCB antenna/ Add in: not supported  Receive Sensitivity 802.11b<-85dBm@11Mbps 802.11a/g<-72dBm@54Mbps 802.11n<-69dBm@MCS7 Protocol stack support IPv4, TCP/UDP/FTP/HTTP/HTTPS/TLS/mDNS Data rate (Max) [email protected], [email protected], [email protected] Security support Encryption Standard:Open/WEP-Open/WPA/WPA2 Encryption algorithm:WEP64/WEP128/TKIP/AES Network type STA/AP/STA+AP - 5 - 3.2 TX、RX performance 3.2.1 IEEE802.11b Mode Table 4 3.2.1 basic parameters …

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AsiacomTechnologyLtd. 1501-1503,BlockA,Building8,ShenzhenInternationalInnovationValley,Xili,Nanshan District,Shenzhen,518057,China --------------------------------------------------------------------------------------------------------------------- Date:2021-03-15 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 FCCID:2AY4V-AC8401 ConfidentialityRequest Towhomitmayconcern, PursuanttoSections0.457and0.459oftheCommission’sRules,weherebyrequestconfidential treatmentoftheinformationaccompanyingthisapplicationasoutlinedbelow: ☒BlockDiagram ☐Tune-UpInformation ☒OperationalDescription☒SecurityInformation ☒Schematics☐SoftwareDefinedRadio(SDR)Information ☐PartsList Theabovematerialscontaintradesecretsandproprietaryinformationnotcustomarilyreleasedto thepublic.Thepublicdisclosureofthesematerialsmaybeharmfultotheapplicantandprovide unjustifiedbenefitstoitscompetitors. TheapplicantunderstandsthatpursuanttoSection0.457oftheRules,disclosureofthis applicationandallaccompanyingdocumentationwillnotbemadebeforethedateoftheGrantfor thisapplication. Sincerely, AsiacomTechnologyLtd. ------------------------------- JessyPi/Director

AsiacomTechnologyLtd. 1501-1503,BlockA,Building8,ShenzhenInternationalInnovationValley,Xili,NanshanDistrict, Shenzhen,518057,China MODULARAPPROVALLETTER FCCID:2AY4V-AC8401Date:3/15/2021 ModularApprovalRequirementYesNo (i)Theradioelementsofthemodulartransmittermusthave theirownshielding.Thephysicalcrystalandtuning capacitorsmaybelocatedexternaltotheshieldedradio elements. ✔ (ii)Themodulartransmittermusthavebuffered modulation/datainputs(ifsuchinputsareprovided)to ensurethatthemodulewillcomplywithpart 15requirementsunderconditionsofexcessivedataratesor over-modulation. ✔ (iii)Themodulartransmittermusthaveitsownpower supplyregulation. ✔ (iv)Themodulartransmittermustcomplywiththeantenna andtransmissionsystemrequirementsof§§15.203, 15.204(b)and15.204(c).Theantennamusteitherbe permanentlyattachedoremploya‘‘unique’’antenna coupler(atallconnectionsbetweenthemoduleandthe antenna,includingthecable).The‘‘professionalinstallation’’ provisionof§15.203isnotapplicabletomodulesbutcan applytolimitedmodular approvalsunderparagraph(b)ofthissection. ✔ (v)Themodulartransmittermustbetestedinastand-alone configuration ✔ (vi)Themodulartransmittermustbeequippedwitheithera permanentlyaffixedlabelormustbecapableof electronicallydisplayingitsFCCidentificationnumber. ✔ (vii)Themodulartransmittermustcomplywithanyspecific rulesoroperatingrequirementsthatordinarilyapplytoa completetransmitterandthemanufacturermustprovide adequateinstructionsalongwiththemoduletoexplainany suchrequirements.Acopyoftheseinstructionsmustbe includedintheapplicationforequipmentauthorization. ✔ (viii)Themodulartransmittermustcomplywithany applicableRFexposurerequirementsinitsfinal configuration. ✔ Sincerely, AsiacomTechnologyLtd. C AsiacomTechnologyLtd. 1501-1503,BlockA,Building8,ShenzhenInternationalInnovationValley,Xili,NanshanDistrict, Shenzhen,518057,China JessyPi/Director

AsiacomTechnologyLtd. 1501-1503,BlockA,Building8,ShenzhenInternationalInnovationValley,Xili, NanshanDistrict,Shenzhen,518057,China ------------------------------------------------------------------------------- - (FCCID：2AY4V-AC8401) POWEROFATTORNEY DATE:2021-03-15 FederalCommunicationsCommission AuthorizationandEvaluationDivision 7435OaklandMillsRoad Columbia,MD21046 ToWhomItMayConcern: We,theundersigned,herebyauthorizeWaltekTestingGroup(Shenzhen)Co.,Ltd. JandySoonourbehalf,toapplytotheFederalCommunicationsCommissiononour equipment.AnyandallactscarriedoutbyWaltekTestingGroup(Shenzhen)Co., Ltd.JandySoonourbehalfshallhavethesameeffectasactsofourown. ThisistoadvisethatweareinfullcompliancewiththeAnti-DrugAbuseAct. We,AsiacomTechnologyLtd.arenotsubjecttoadenialoffederalbenefits pursuanttoSection5301oftheAnti-DrugActof1988,21USC853a,andnoparty totheapplicationissubjecttoadenialoffederalbenefitspursuanttothat section. Sincerely, AsiacomTechnologyLtd. ------------------------------- JessyPi/Director

Reference No.: WTX21X03014671W-1/2 Page 2 of 6 Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2

Reference No.: WTX21X03014671W-1/2 Page 1 of 6 Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2AY4V-AC8401 Specifications: The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

Solder Reference No.: Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn EXHIBIT Solder Board View Antenna Reference No.: WTX21X03014671W Waltek Testing Group (Shenzhen) Co., Ltd. www.semtest.com.cn EXHIBIT 3 - EUT Board-Component View 1 Antenna View WTX21X03014671W Waltek Testing Group (Shenzhen) Co., Ltd. www.semtest.com.cn EUT INTERNAL Component WTX21X03014671W-1/2 Waltek Testing Group (Shenzhen) Co., Ltd. INTERNAL PHOTOGRAPHS Page 3 of 6 PHOTOGRAPHS 6 PHOTOGRAPHS

1. MAXIMUM PERMISSIBLE EXPOSURE (MPE) 1.1 General Information Client Information Applicant: Asiacom Technology Ltd. Address of applicant: 1501-1503, Block A, Building 8, Shenzhen International Innovation Valley, Dashi Road, Xili Community, Xili Street, Nanshan District, Shenzhen Manufacturer: Asiacom Technology Ltd. Address of manufacturer: 1501-1503, Block A, Building 8, Shenzhen International Innovation Valley, Dashi Road, Xili Community, Xili Street, Nanshan District, Shenzhen General Description of EUT: Product Name: WIFI Module Trade Name: AsiaCom Model No.: AC8401 Adding Model(s): / Rated Voltage: DC3.3V FCC ID: 2AY4V-AC8401 Technical Characteristics of EUT: Wi-Fi (2.4G) Support Standards: 802.11b, 802.11g, 802.11n-HT20, 802.11n-HT40 Frequency Range: 2412-2462MHz for 802.11b/g/n(HT20) 2422-2452MHz for 802.11n(HT40) RF Output Power: 16.72dBm (Conducted) Type of Modulation: DBPSK,BPSK,DQPSK,QPSK,16QAM,64QAM Quantity of Channels: 11 for 802.11b/g/n(HT20); 7 for 802.11n(HT40) Channel Separation: 5MHz Type of Antenna: PCB Antenna Antenna Gain: 0dBi Wi-Fi (5G) Support Standards: 802.11a, 802.11n(HT20), 802.11n-HT40 Frequency Range: 5150-5250MHz RF Output Power: 13.15dBm (Conducted) Type of Modulation: BPSK, QPSK,16QAM,64QAM Type of Antenna: PCB Antenna Antenna Gain: 0dBi 1.2 Standard Applicable According to §1.1307(b)(1) and KDB 447498 D01 General RF Exposure Guidance v06, system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. (a) Limits for Occupational / Controlled Exposure Frequency range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times | E | 2 , | H | 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 / / F/300 6 1500-100000 / / 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times | E | 2 , | H | 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 / / F/1500 30 1500-100000 / / 1 30 Note: f = frequency in MHz: * = Plane-wave equivalents power density 1.3 MPE Calculation Method S = (30*P*G) / (377*R 2 ) S = power density (in appropriate units, e.g., mw/cm 2 ) P = power input to the antenna (in appropriate units, e.g., mw) G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor is normally numeric gain. R = distance to the center of radiation of the antenna (in appropriate units, e.g., cm) 1.4 MPE Calculation Result For Wi-Fi (2.4G) Maximum Tune-Up output power: 18(dBm) Maximum peak output power at antenna input terminal: 63.10 (mW) Prediction distance: >20(cm) Prediction frequency: 2437 (MHz) Antenna gain: 0 (dBi) Directional gain (numeric gain): 1.00 The worst case is power density at prediction frequency at 20cm: 0.0126 (mw/cm 2 ) MPE limit for general population exposure at prediction frequency: 1 (mw/cm 2 ) For Wi-Fi (5G) Maximum Tune-Up output power: 13.5(dBm) Maximum peak output power at antenna input terminal: 22.39 (mW) Prediction distance: >20(cm) Prediction frequency: 5230 (MHz) Antenna gain: 0 (dBi) Directional gain (numeric gain): 1.00 The worst case is power density at prediction frequency at 20cm: 0.0045 (mw/cm 2 ) MPE limit for general population exposure at prediction frequency: 1 (mw/cm 2 ) Result: Pass

Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn Page 1 of 54 TEST REPORT Reference No. .................... : WTX21X03014671W-1 FCC ID ................................ : 2AY4V-AC8401 Applicant ........................... : Asiacom Technology Ltd. Address.............................. : 1501-1503, Block A, Building 8, Shenzhen International Innovation Valley, Dashi Road, Xili Community, Xili Street, Nanshan District, Shenzhen Product Name ................... : WIFI Module Test Model. ........................ : AC8401 Standards .......................... : FCC Part 15.407 Date of Receipt sample .... : Mar. 02, 2021 Date of Test........................ : Mar. 02, 2021 to Mar. 10, 2021 Date of Issue ..................... : Mar. 10, 2021 Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of compiler and approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Tested by: Reviewed By: Approved & Authorized By: Mike Shi / Project Engineer Lion Cai / RF Manager Silin Chen / Manager Reference No.: WTX21X03014671W-1 Page 2 of 54 Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................5 1.2 TEST STANDARDS ...................................................................................................................................................6 1.3 TEST METHODOLOGY .............................................................................................................................................6 1.4 TABLE FOR PARAMETERS OF TEST SOFTWARE SETTING .........................................................................................6 1.5 EUT OPERATING DURING TEST ..............................................................................................................................7 1.6 TEST FACILITY .......................................................................................................................................................7 1.7 EUT SETUP AND TEST MODE .................................................................................................................................8 1.8 MEASUREMENT UNCERTAINTY ..............................................................................................................................9 1.9 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 10 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 12 3. ANTENNA REQUIREMENT ................................................................................................................................ 13 3.1 STANDARD APPLICABLE ....................................................................................................................................... 13 3.2 EVALUATION INFORMATION................................................................................................................................. 13 4. AUTOMATICALLY DISCONTINUE TRANSMISSION .................................................................................. 14 4.1 STANDARD APPLICABLE ....................................................................................................................................... 14 4.2 SUMMARY OF TEST RESULTS ............................................................................................................................... 14 5. POWER SPECTRAL DENSITY ........................................................................................................................... 15 5.1 STANDARD APPLICABLE ....................................................................................................................................... 15 5.2 TEST PROCEDURE ................................................................................................................................................. 15 5.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 16 6. EMISSION BANDWIDTH AND OCCUPIED BANDWIDTH ........................................................................... 17 6.1 STANDARD APPLICABLE ....................................................................................................................................... 17 6.2 TEST PROCEDURE ................................................................................................................................................. 17 6.3 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 19 7. MAXIMUM CONDUCTED OUTPUT POWER .................................................................................................. 20 7.1 STANDARD APPLICABLE ....................................................................................................................................... 20 7.2 TEST PROCEDURE ................................................................................................................................................. 20 7.3 SUMMARY OF TEST RESULTS/PLOTS .............…

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Reference No.: WTX21X03014671W-1/2 Page 4 of 6 Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Conducted Emission Test Setup Radiation Emission Test Setup (Below 30MHz) Reference No.: WTX21X03014671W-1/2 Page 5 of 6 Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn Radiation Emission Test Setup (30MHz to 1GHz) Radiation Emission Test Setup (1GHz to 18GHz) Reference No.: WTX21X03014671W-1/2 Page 6 of 6 Waltek Testing Group (Shenzhen) Co., Ltd. http://www.semtest.com.cn Radiation Emission Test Setup (Above 18GHz) ***** END OF REPORT *****